RUN_GUILE = GUILE_LOAD_PATH="@abs_top_srcdir@/pmt/src/scheme:@abs_top_srcdir@/mblock/src/scheme" @GUILE@ -e main -s
COMPILE_MBH = $(RUN_GUILE) $(top_srcdir)/mblock/src/scheme/gnuradio/compile-mbh.scm
+
+# Base directory for example applications
+exampledir = $(datadir)/gnuradio/examples
gnuradio-examples/python/apps/hf_radio/Makefile \
gnuradio-examples/python/apps/Makefile \
gnuradio-examples/python/audio/Makefile \
- gnuradio-examples/python/channel-coding/Makefile \
- gnuradio-examples/python/channel-coding/fsm_files/Makefile \
gnuradio-examples/python/digital/Makefile \
gnuradio-examples/python/digital_voice/Makefile \
gnuradio-examples/python/hier/Makefile \
gr-trellis/src/lib/Makefile \
gr-trellis/src/python/Makefile \
gr-trellis/src/python/run_tests \
+ gr-trellis/src/examples/Makefile \
+ gr-trellis/src/examples/fsm_files/Makefile
])
passed=yes
--- /dev/null
+# Copyright 2007 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+
+AC_DEFUN([GRC_GR_UTILS],[
+ GRC_ENABLE([gr-utils])
+
+ AC_CONFIG_FILES([ \
+ gr-utils/Makefile \
+ gr-utils/src/Makefile \
+ gr-utils/src/lib/Makefile \
+ gr-utils/src/python/Makefile \
+ ])
+
+ passed=yes
+ # Don't do gr-utils if gnuradio-core, usrp, or gr-wxgui skipped
+ # There *has* to be a better way to check if a value is in a string
+ for dir in $skipped_dirs
+ do
+ if test x$dir = xusrp; then
+ AC_MSG_RESULT([Component gr-utils requires usrp, which is not being built.])
+ passed=no
+ fi
+ if test x$dir = xgnuradio-core; then
+ AC_MSG_RESULT([Component gr-utils requires gnuradio-core, which is not being built.])
+ passed=no
+ fi
+ if test x$dir = xgr-wxgui; then
+ AC_MSG_RESULT([Component gr-utils requires gr-wxgui, which is not being built.])
+ passed=no
+ fi
+ done
+
+ GRC_BUILD_CONDITIONAL([gr-utils])
+])
GRC_GR_QTGUI
GRC_GR_WXGUI
GRC_GR_SOUNDER dnl this must come after GRC_USRP
+GRC_GR_UTILS
GRC_GNURADIO_EXAMPLES dnl must come last
# Each component is now either to be built, was skipped, or failed dependencies
# Boston, MA 02110-1301, USA.
#
-SUBDIRS = apps audio channel-coding digital_voice digital multi-antenna \
- multi_usrp networking usrp hier ofdm
+include $(top_srcdir)/Makefile.common
+
+SUBDIRS = \
+ apps \
+ audio \
+ digital_voice \
+ digital \
+ multi-antenna \
+ multi_usrp \
+ networking \
+ usrp \
+ hier \
+ ofdm
+
+# Make example scripts with #! executable
+install-data-local:
+ for i in `find $(exampledir) -type f ! -perm 755`; do \
+ if head -1 $$i | grep -q '^#!'; then \
+ chmod 755 $$i; \
+ echo "made executable: $$i"; \
+ fi; \
+ done
# Boston, MA 02110-1301, USA.
#
+include $(top_srcdir)/Makefile.common
+
EXTRA_DIST = \
README \
hfx2.py \
hfx_help
+ourdatadir = $(exampledir)/hf_explorer
+ourdata_DATA = $(EXTRA_DIST)
\ No newline at end of file
# Boston, MA 02110-1301, USA.
#
+include $(top_srcdir)/Makefile.common
+
EXTRA_DIST = \
hfir.sci \
input.py \
startup.py \
ui.py
+ourdatadir = $(exampledir)/hf_radio
+ourdata_DATA = $(EXTRA_DIST)
# Boston, MA 02110-1301, USA.
#
+include $(top_srcdir)/Makefile.common
+
EXTRA_DIST = \
audio_copy.py \
audio_fft.py \
audio_play.py \
audio_to_file.py \
- dial_squelch.py \
dial_tone.py \
- dialtone_v.py \
mono_tone.py \
multi_tone.py \
noise.py \
spectrum_inversion.py \
test_resampler.py
+
+ourdatadir = $(exampledir)/audio
+ourdata_DATA = $(EXTRA_DIST)
+++ /dev/null
-#!/usr/bin/env python
-
-# Copyright 2006 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-from gnuradio import gr, audio, eng_option
-from gnuradio.eng_option import eng_option
-from math import pi, cos
-from optparse import OptionParser
-
-"""
-This script generates a standard dial tone and then applies a sinusoidal
-envelope to vary it's loudness. The audio is then passed through the
-power squelch block before it gets sent to the sound card. By varying
-the command line parameters, one can see the effect of differing
-amounts of power averaging, threshold, and attack/decay ramping.
-"""
-
-class app_flow_graph(gr.flow_graph):
- def __init__(self, options, args):
- gr.flow_graph.__init__(self)
-
- # Create dial tone by adding two sine waves
- SRC1 = gr.sig_source_f(options.rate, gr.GR_SIN_WAVE, 350, 0.5, 0.0)
- SRC2 = gr.sig_source_f(options.rate, gr.GR_SIN_WAVE, 440, 0.5, 0.0)
- ADD = gr.add_ff()
-
- # Convert to vector stream (and back) to apply raised cosine envelope
- # You could also do this with a vector_source_f block that repeats.
- S2V = gr.stream_to_vector(gr.sizeof_float, options.rate)
- ENV = [0.5-cos(2*pi*x/options.rate)/2 for x in range(options.rate)]
- MLT = gr.multiply_const_vff(ENV)
- V2S = gr.vector_to_stream(gr.sizeof_float, options.rate)
-
- # Run through power squelch with user supplied or default options
- # Zero output when squelch is invoked
- SQL = gr.pwr_squelch_ff(options.threshold, options.alpha, options.ramp, False)
- DST = audio.sink(options.rate)
-
- # Solder it all together
- self.connect(SRC1, (ADD, 0))
- self.connect(SRC2, (ADD, 1))
- self.connect(ADD, S2V, MLT, V2S, SQL, DST)
-
-def main():
- parser = OptionParser(option_class=eng_option)
- parser.add_option("-r", "--rate", type="int", default=8000, help="set audio output sample rate to RATE", metavar="RATE")
- parser.add_option("-t", "--threshold", type="eng_float", default=-10.0, help="set power squelch to DB", metavar="DB")
- parser.add_option("-a", "--alpha", type="eng_float", default=None, help="set alpha to ALPHA", metavar="ALPHA")
- parser.add_option("-m", "--ramp", type="int", default=None, help="set attack/decay ramp to SAMPLES", metavar="SAMPLES")
- (options, args) = parser.parse_args()
-
- if options.alpha == None:
- options.alpha = 50.0/options.rate
-
- if options.ramp == None:
- options.ramp = options.rate/50 # ~ 20 ms
-
- print "Using audio rate of", options.rate
- print "Using threshold of", options.threshold, "db"
- print "Using alpha of", options.alpha
- print "Using ramp of", options.ramp, "samples"
-
- fg = app_flow_graph(options, args)
-
- try:
- fg.run()
- except KeyboardInterrupt:
- pass
-
-if __name__ == "__main__":
- main()
+++ /dev/null
-#!/usr/bin/env python
-
-# Copyright 2006 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-from gnuradio import gr, audio
-from math import pi, sin
-
-"""
-This test script demonstrates the use of element-wise vector processing
-vs. stream processing. The example is artificial in that the stream
-version in dial_tone.py is the normal way to do it; in addition, the
-envelope processing here is just for demo purposes and isn't needed.
-"""
-
-# For testing different buffer sizes
-rate = 48000
-
-fg = gr.flow_graph()
-
-# Two streams of floats
-a = gr.sig_source_f(rate, gr.GR_SIN_WAVE, 350, 0.5, 0.0);
-b = gr.sig_source_f(rate, gr.GR_SIN_WAVE, 440, 0.5, 0.0);
-
-# Turn them into vectors of length 'size'
-av = gr.stream_to_vector(gr.sizeof_float, rate)
-bv = gr.stream_to_vector(gr.sizeof_float, rate)
-
-# Make a vector adder for float vectors
-adder = gr.add_vff(rate)
-
-# Make a 1 Hz sine envelope
-envelope = [sin(2*pi*x/rate)*0.5 for x in range(rate)]
-multiplier = gr.multiply_const_vff(envelope)
-
-# Make an offset adder
-offset = gr.add_const_vff((0.5,)*rate)
-
-# Turn the vector back into a stream of floats
-result = gr.vector_to_stream(gr.sizeof_float, rate)
-
-# Play it
-sink = audio.sink(rate)
-
-fg.connect(a, av)
-fg.connect(b, bv)
-fg.connect(av, (adder, 0))
-fg.connect(bv, (adder, 1))
-fg.connect(adder, multiplier, offset, result, sink)
-
-try:
- fg.run()
-except KeyboardInterrupt:
- pass
+++ /dev/null
-#
-# Copyright 2004 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-EXTRA_DIST = \
- README \
- fsm_utils.py \
- test_tcm.py \
- test_tcm1.py \
- test_tcm2.py \
- test_tcm_parallel.py \
- test_tcm_combined.py \
- test_sccc_hard.py \
- test_sccc_soft.py \
- test_sccc_turbo.py \
- test_viterbi_equalization1.py \
- test_viterbi_equalization.py \
- test_turbo_equalization.py \
- test_turbo_equalization1.py \
- test_turbo_equalization2.py
-
-SUBDIRS = fsm_files
-
-MOSTLYCLEANFILES = *.pyc
+++ /dev/null
-Here we have several test programs for use with the gr-trellis implementation.
-Documentation can be found in
-http://gnuradio.utah.edu/svn/gnuradio/trunk/gr-trellis/doc/gr-trellis.html
-
-fsm_utils.py contains several useful functions.
-
-fsm_files is a directory with some FSM definitions
-
-If you just want to see what these programs do, run each of the following:
-
-./test_tcm.py fsm_files/awgn1o2_4.fsm 6.0 1000
-./test_tcm1.py fsm_files/awgn1o2_4.fsm 6.0 1000
-./test_tcm2.py 6.0 1000
-./test_tcm_combined.py fsm_files/awgn1o2_4.fsm 6.0 1000
-./test_tcm_parallel.py fsm_files/awgn1o2_4.fsm 6.0 1000
-
-./test_sccc_hard.py fsm_files/awgn1o2_4.fsm fsm_files/awgn2o3_4_msb.fsm 10.0 100
-./test_sccc_soft.py fsm_files/awgn1o2_4.fsm fsm_files/awgn2o3_4_msb.fsm 8.0 100
-./test_sccc_turbo.py fsm_files/awgn1o2_4.fsm fsm_files/awgn2o3_4_msb.fsm 5.0 100
-
-./test_viterbi_equalization.py 12.0 100
-./test_viterbi_equalization1.py 12.0 100
-./test_turbo_equalization1.py fsm_files/awgn1o2_4.fsm 8.0 100
-./test_turbo_equalization2.py fsm_files/awgn1o2_4.fsm 8.0 100
-
-
-In your terminal you will see something like this:
-
-
-$ ./test_tcm.py fsm_files/awgn1o2_4.fsm 6.0 1000
-100 98 9.80e-01 102400 9 8.79e-05
-200 198 9.90e-01 204800 20 9.77e-05
-300 298 9.93e-01 307200 40 1.30e-04
-400 398 9.95e-01 409600 1074 2.62e-03
-500 498 9.96e-01 512000 1081 2.11e-03
-600 598 9.97e-01 614400 1090 1.77e-03
-700 698 9.97e-01 716800 1097 1.53e-03
-800 798 9.98e-01 819200 1107 1.35e-03
-900 898 9.98e-01 921600 1120 1.22e-03
-1000 998 9.98e-01 1024000 1129 1.10e-03
-1000 998 9.98e-01 1024000 1129 1.10e-03
-
-which gives you information about the:
-number of transmitted packets
-number of packets in error
-estimated packet error rate
-number of transmitted shorts (or symbols, or bits, depending on the specific program)
-number of shorts (or symbols, or bits) in error
-estimated short (or symbol, or bit) error rate
-
-for instance, the final number 1.10e-03 is the error rate estimate by sending 1000
-packets of 1024 shorts each, using an 1/2 4-state convolutional code
-and QPSK modulation through an AWGN with Es/N0 = 6.0 dB
+++ /dev/null
-#
-# Copyright 2004 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-EXTRA_DIST = \
- awgn1o2_128.fsm \
- awgn1o2_16.fsm \
- awgn1o2_4.fsm \
- awgn1o2_8.fsm \
- awgn2o3_16.fsm \
- awgn2o3_4.fsm \
- awgn2o3_4_msb.fsm \
- awgn2o3_4_msbG.fsm \
- awgn2o3_8.fsm \
- awgn2o4_4.fsm \
- disconnected.fsm \
- rep3.fsm \
- rep5.fsm \
- simple.fsm
-
+++ /dev/null
-2 128 4
-
-0 64
-0 64
-1 65
-1 65
-2 66
-2 66
-3 67
-3 67
-4 68
-4 68
-5 69
-5 69
-6 70
-6 70
-7 71
-7 71
-8 72
-8 72
-9 73
-9 73
-10 74
-10 74
-11 75
-11 75
-12 76
-12 76
-13 77
-13 77
-14 78
-14 78
-15 79
-15 79
-16 80
-16 80
-17 81
-17 81
-18 82
-18 82
-19 83
-19 83
-20 84
-20 84
-21 85
-21 85
-22 86
-22 86
-23 87
-23 87
-24 88
-24 88
-25 89
-25 89
-26 90
-26 90
-27 91
-27 91
-28 92
-28 92
-29 93
-29 93
-30 94
-30 94
-31 95
-31 95
-32 96
-32 96
-33 97
-33 97
-34 98
-34 98
-35 99
-35 99
-36 100
-36 100
-37 101
-37 101
-38 102
-38 102
-39 103
-39 103
-40 104
-40 104
-41 105
-41 105
-42 106
-42 106
-43 107
-43 107
-44 108
-44 108
-45 109
-45 109
-46 110
-46 110
-47 111
-47 111
-48 112
-48 112
-49 113
-49 113
-50 114
-50 114
-51 115
-51 115
-52 116
-52 116
-53 117
-53 117
-54 118
-54 118
-55 119
-55 119
-56 120
-56 120
-57 121
-57 121
-58 122
-58 122
-59 123
-59 123
-60 124
-60 124
-61 125
-61 125
-62 126
-62 126
-63 127
-63 127
-
-0 3
-3 0
-1 2
-2 1
-3 0
-0 3
-2 1
-1 2
-1 2
-2 1
-0 3
-3 0
-2 1
-1 2
-3 0
-0 3
-1 2
-2 1
-0 3
-3 0
-2 1
-1 2
-3 0
-0 3
-0 3
-3 0
-1 2
-2 1
-3 0
-0 3
-2 1
-1 2
-2 1
-1 2
-3 0
-0 3
-1 2
-2 1
-0 3
-3 0
-3 0
-0 3
-2 1
-1 2
-0 3
-3 0
-1 2
-2 1
-3 0
-0 3
-2 1
-1 2
-0 3
-3 0
-1 2
-2 1
-2 1
-1 2
-3 0
-0 3
-1 2
-2 1
-0 3
-3 0
-2 1
-1 2
-3 0
-0 3
-1 2
-2 1
-0 3
-3 0
-3 0
-0 3
-2 1
-1 2
-0 3
-3 0
-1 2
-2 1
-3 0
-0 3
-2 1
-1 2
-0 3
-3 0
-1 2
-2 1
-2 1
-1 2
-3 0
-0 3
-1 2
-2 1
-0 3
-3 0
-0 3
-3 0
-1 2
-2 1
-3 0
-0 3
-2 1
-1 2
-1 2
-2 1
-0 3
-3 0
-2 1
-1 2
-3 0
-0 3
-1 2
-2 1
-0 3
-3 0
-2 1
-1 2
-3 0
-0 3
-0 3
-3 0
-1 2
-2 1
-3 0
-0 3
-2 1
-1 2
-
-
-
-GM1o2_128=[1+D+D^2+D^5+D^7 1+D^3+D^4+D^5+D^6+D^7]
- =[11100101 10011111]
- =[229 159]
+++ /dev/null
-2 16 4
-
-0 8
-0 8
-1 9
-1 9
-2 10
-2 10
-3 11
-3 11
-4 12
-4 12
-5 13
-5 13
-6 14
-6 14
-7 15
-7 15
-
-0 3
-3 0
-1 2
-2 1
-1 2
-2 1
-0 3
-3 0
-2 1
-1 2
-3 0
-0 3
-3 0
-0 3
-2 1
-1 2
-
-
-
-GM1o2_16=[1+D+D^4 1+D^2+D^3+D^4 ] = [25,23] (decimal)
+++ /dev/null
-2 4 4
-
-0 2
-0 2
-1 3
-1 3
-
-0 3
-3 0
-1 2
-2 1
-
-AWGN CC from Proakis-Salehi pg 779
-GM1o2_4=[1+D^2, 1+D+D^2] = [5, 7] (in decimal);
+++ /dev/null
-2 8 4
-
-0 4
-0 4
-1 5
-1 5
-2 6
-2 6
-3 7
-3 7
-
-
-0 3
-3 0
-1 2
-2 1
-3 0
-0 3
-2 1
-1 2
-
-
-1/2 8-state code (Proakis pg. 493)
-GM1o2_8=[ 1+D+D^3 1+D+D^2+D^3] =[13 , 15] (decimal)
+++ /dev/null
-4 16 8
-
-0 8 4 12
-0 8 4 12
-0 8 4 12
-0 8 4 12
-1 9 5 13
-1 9 5 13
-1 9 5 13
-1 9 5 13
-2 10 6 14
-2 10 6 14
-2 10 6 14
-2 10 6 14
-3 11 7 15
-3 11 7 15
-3 11 7 15
-3 11 7 15
-
-0 1 7 6
-6 7 1 0
-3 2 4 5
-5 4 2 3
-2 3 5 4
-4 5 3 2
-1 0 6 7
-7 6 0 1
-4 5 3 2
-2 3 5 4
-7 6 0 1
-1 0 6 7
-6 7 1 0
-0 1 7 6
-5 4 2 3
-3 2 4 5
-
-
-2/3 code generated from the awgn 1/2 code with 16 states and puncturing the 4th bit.
-d_free=
-
+++ /dev/null
-4 4 8
-
-0 1 2 3
-0 1 2 3
-0 1 2 3
-0 1 2 3
-
-0 7 4 3
-3 4 7 0
-5 2 1 6
-6 1 2 5
-
-I don't remeber how I generated this one...
-it is a bit better than awgn2o3_4_msb and worse
-than awgn2o3_4_msbG.
+++ /dev/null
-4 4 8
-
-0 1 2 3
-0 1 2 3
-0 1 2 3
-0 1 2 3
-
-0 5 3 6
-4 1 7 2
-7 2 4 1
-3 6 0 5
-
-
-This is generated by the 1/2 AWGN code (5 7) operated twice, ie,
-(xk+1 xki) [xk-1 xk-2] -> [xk+1 xki].
-We also puncture the first (MSB) bit.
-This code is worse than awgn2o3_4_msbG and slightly worse than
-awgn2o3_4, BUT seems to be a good innner code for sctcm (with 8PSK natural).
-
-intermediate states:
-
-00 21 02 23
-00 21 02 23
-10 31 12 33
-10 31 12 33
-
-output before puncturing:
-
-00 31 03 32
-30 01 33 02
-13 22 10 21
-23 12 20 11
-
-output after punturing the MSB:
-
-00 11 03 12
-10 01 13 02
-13 02 10 01
-03 12 00 11
-
-and in decimal:
-
-0 5 3 6
-4 1 7 2
-7 2 4 1
-3 6 0 5
+++ /dev/null
-4 4 8
-
-0 1 2 3
-0 1 2 3
-0 1 2 3
-0 1 2 3
-
-0 4 2 6
-5 1 3 7
-3 7 5 1
-
-
-This is generated by the 1/2 AWGN code (5 7) operated twice, ie,
-(xk+1 xki) [xk-1 xk-2] -> [xk+1 xki].
-We also puncture the first (MSB) bit and Gray map the symbols.
-
-intermediate states:
-
-00 21 02 23
-00 21 02 23
-10 31 12 33
-10 31 12 33
-
-output before puncturing:
-
-00 31 03 32
-30 01 33 02
-13 22 10 21
-23 12 20 11
-
-output after punturing the MSB:
-
-00 11 03 12
-10 01 13 02
-13 02 10 01
-03 12 00 11
-
-and in decimal:
-
-0 5 3 6
-4 1 7 2
-7 2 4 1
-3 6 0 5
-
-After Gray mapping:
-label -> phase
-0 -> 0
-1 -> 0
-2 -> 7
-3 -> 2
-4 -> 5
-5 -> 4
-6 -> 6
-7 -> 3
-
-0 4 2 6
-5 1 3 7
-3 7 5 1
-2 6 0 4
-
+++ /dev/null
-4 8 8
-
-0 4 2 6
-0 4 2 6
-0 4 2 6
-0 4 2 6
-1 5 3 7
-1 5 3 7
-1 5 3 7
-1 5 3 7
-
-
-0 1 7 6
-6 7 1 0
-3 2 4 5
-5 4 2 3
-6 7 1 0
-0 1 7 6
-5 4 2 3
-3 2 4 5
-
-
-
-This is generated by the 1/2 8-state AWGN code (15 17) by puncturing the fourth bit.
---> d_free=???
+++ /dev/null
-4 4 16
-
-0 1 2 3
-0 1 2 3
-0 1 2 3
-0 1 2 3
-
- 0 13 3 14
-12 1 15 2
- 7 10 4 9
-11 6 8 5
-
-
-This is generated by the 1/2 AWGN code (5 7) operated twice, ie,
-(xk+1 xki) [xk-1 xk-2] -> [xk+1 xki].
-
-intermediate states:
-
-00 21 02 23
-00 21 02 23
-10 31 12 33
-10 31 12 33
-
-output:
-
-00 31 03 32
-30 01 33 02
-13 22 10 21
-23 12 20 11
-
-and in decimal:
-
- 0 13 3 14
-12 1 15 2
- 7 10 4 9
-11 6 8 5
+++ /dev/null
-1 4 1
-
-1
-0
-3
-2
-
-0
-0
-0
-0
+++ /dev/null
-2 2 2
-
-0 0
-0 1
-
-0 1
-0 1
-
-
-useless irregular FSM for testing. state 0 has 3 incoming edges and state
-1 has 1 incoming edge.
+++ /dev/null
-2 1 8
-
-0 0
-
-0 7
-
-1/3 repetition code (with binary input).
-There is only one state, since this is essentially a memoryless system.
+++ /dev/null
-2 1 8
-
-0 0
-
-0 7
-
-1/3 repetiotion code
+++ /dev/null
-1 4 1
-
-1
-2
-3
-0
-
-0
-0
-0
-0
-
-essentially this fsm has no inputs and no outputs; it ijust cycles through all 4 states.
+++ /dev/null
-#!/usr/bin/env python
-#
-# Copyright 2004 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-
-import re
-import math
-import sys
-import operator
-
-from gnuradio import trellis
-
-
-
-######################################################################
-# Decimal to any base conversion.
-# Convert 'num' to a list of 'l' numbers representing 'num'
-# to base 'base' (most significant symbol first).
-######################################################################
-def dec2base(num,base,l):
- s=range(l)
- n=num
- for i in range(l):
- s[l-i-1]=n%base
- n=int(n/base)
- if n!=0:
- print 'Number ', num, ' requires more than ', l, 'digits.'
- return s
-
-
-######################################################################
-# Conversion from any base to decimal.
-# Convert a list 's' of symbols to a decimal number
-# (most significant symbol first)
-######################################################################
-def base2dec(s,base):
- num=0
- for i in range(len(s)):
- num=num*base+s[i]
- return num
-
-
-######################################################################
-# Generate a new FSM representing the concatenation of two FSMs
-######################################################################
-def fsm_concatenate(f1,f2):
- if f1.O() > f2.I():
- print "Not compatible FSMs\n"
- I=f1.I()
- S=f1.S()*f2.S()
- O=f2.O()
- nsm=list([0]*I*S)
- osm=list([0]*I*S)
- for s1 in range(f1.S()):
- for s2 in range(f2.S()):
- for i in range(f1.I()):
- ns1=f1.NS()[s1*f1.I()+i]
- o1=f1.OS()[s1*f1.I()+i]
- ns2=f2.NS()[s2*f2.I()+o1]
- o2=f2.OS()[s2*f2.I()+o1]
-
- s=s1*f2.S()+s2
- ns=ns1*f2.S()+ns2
- nsm[s*I+i]=ns
- osm[s*I+i]=o2
-
-
- f=trellis.fsm(I,S,O,nsm,osm)
- return f
-
-######################################################################
-# Generate a new FSM representing n stages through the original FSM
-######################################################################
-def fsm_radix(f,n):
- I=f.I()**n
- S=f.S()
- O=f.O()**n
- nsm=list([0]*I*S)
- osm=list([0]*I*S)
- for s in range(f.S()):
- for i in range(I):
- ii=dec2base(i,f.I(),n)
- oo=list([0]*n)
- ns=s
- for k in range(n):
- oo[k]=f.OS()[ns*f.I()+ii[k]]
- ns=f.NS()[ns*f.I()+ii[k]]
-
- nsm[s*I+i]=ns
- osm[s*I+i]=base2dec(oo,f.O())
-
-
- f=trellis.fsm(I,S,O,nsm,osm)
- return f
-
-
-
-
-######################################################################
-# Automatically generate the lookup table that maps the FSM outputs
-# to channel inputs corresponding to a channel 'channel' and a modulation
-# 'mod'. Optional normalization of channel to unit energy.
-# This table is used by the 'metrics' block to translate
-# channel outputs to metrics for use with the Viterbi algorithm.
-# Limitations: currently supports only one-dimensional modulations.
-######################################################################
-def make_isi_lookup(mod,channel,normalize):
- dim=mod[0]
- constellation = mod[1]
-
- if normalize:
- p = 0
- for i in range(len(channel)):
- p = p + channel[i]**2
- for i in range(len(channel)):
- channel[i] = channel[i]/math.sqrt(p)
-
- lookup=range(len(constellation)**len(channel))
- for o in range(len(constellation)**len(channel)):
- ss=dec2base(o,len(constellation),len(channel))
- ll=0
- for i in range(len(channel)):
- ll=ll+constellation[ss[i]]*channel[i]
- lookup[o]=ll
- return (1,lookup)
-
-
-
-
-
-
-######################################################################
-# A list of common modulations.
-# Format: (dimensionality,constellation)
-######################################################################
-pam2 = (1,[-1, 1])
-pam4 = (1,[-3, -1, 3, 1]) # includes Gray mapping
-pam8 = (1,[-7, -5, -3, -1, 1, 3, 5, 7])
-
-psk4=(2,[1, 0, \
- 0, 1, \
- 0, -1,\
- -1, 0]) # includes Gray mapping
-psk8=(2,[math.cos(2*math.pi*0/8), math.sin(2*math.pi*0/8), \
- math.cos(2*math.pi*1/8), math.sin(2*math.pi*1/8), \
- math.cos(2*math.pi*2/8), math.sin(2*math.pi*2/8), \
- math.cos(2*math.pi*3/8), math.sin(2*math.pi*3/8), \
- math.cos(2*math.pi*4/8), math.sin(2*math.pi*4/8), \
- math.cos(2*math.pi*5/8), math.sin(2*math.pi*5/8), \
- math.cos(2*math.pi*6/8), math.sin(2*math.pi*6/8), \
- math.cos(2*math.pi*7/8), math.sin(2*math.pi*7/8)])
-
-orth2 = (2,[1, 0, \
- 0, 1])
-orth4=(4,[1, 0, 0, 0, \
- 0, 1, 0, 0, \
- 0, 0, 1, 0, \
- 0, 0, 0, 1])
-
-######################################################################
-# A list of channels to be tested
-######################################################################
-
-# C test channel (J. Proakis, Digital Communications, McGraw-Hill Inc., 2001)
-c_channel = [0.227, 0.460, 0.688, 0.460, 0.227]
-
-
-
-
-
-
-
-
-
-
-if __name__ == '__main__':
- f1=trellis.fsm('fsm_files/awgn1o2_4.fsm')
- #f2=trellis.fsm('fsm_files/awgn2o3_4.fsm')
- print f1.I(), f1.S(), f1.O()
- print f1.NS()
- print f1.OS()
- #print f2.I(), f2.S(), f2.O()
- #print f2.NS()
- #print f2.OS()
- ##f1.write_trellis_svg('f1.svg',4)
- #f2.write_trellis_svg('f2.svg',4)
- #f=fsm_concatenate(f1,f2)
- f=fsm_radix(f1,2)
-
- print "----------\n"
- print f.I(), f.S(), f.O()
- print f.NS()
- print f.OS()
- #f.write_trellis_svg('f.svg',4)
-
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr
-from gnuradio import audio
-from gnuradio import trellis
-from gnuradio import eng_notation
-import math
-import sys
-import random
-import fsm_utils
-
-def run_test (fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed):
- fg = gr.flow_graph ()
-
-
- # TX
- src = gr.lfsr_32k_source_s()
- src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
- s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the outer FSM input cardinality
- enc_out = trellis.encoder_ss(fo,0) # initial state = 0
- inter = trellis.permutation(interleaver.K(),interleaver.INTER(),1,gr.sizeof_short)
- enc_in = trellis.encoder_ss(fi,0) # initial state = 0
- mod = gr.chunks_to_symbols_sf(constellation,dimensionality)
-
- # CHANNEL
- add = gr.add_ff()
- noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
-
- # RX
- metrics_in = trellis.metrics_f(fi.O(),dimensionality,constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for innner Viterbi
- va_in = trellis.viterbi_s(fi,K,0,-1) # Put -1 if the Initial/Final states are not set.
- deinter = trellis.permutation(interleaver.K(),interleaver.DEINTER(),1,gr.sizeof_short)
- metrics_out = trellis.metrics_s(fo.O(),1,[0,1,2,3],trellis.TRELLIS_HARD_SYMBOL) # data preprocessing to generate metrics for outer Viterbi (hard decisions)
- va_out = trellis.viterbi_s(fo,K,0,-1) # Put -1 if the Initial/Final states are not set.
- fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
- dst = gr.check_lfsr_32k_s()
-
- fg.connect (src,src_head,s2fsmi,enc_out,inter,enc_in,mod)
- fg.connect (mod,(add,0))
- fg.connect (noise,(add,1))
- fg.connect (add,metrics_in)
- fg.connect (metrics_in,va_in,deinter,metrics_out,va_out,fsmi2s,dst)
-
- fg.run()
-
- ntotal = dst.ntotal ()
- nright = dst.nright ()
- runlength = dst.runlength ()
- return (ntotal,ntotal-nright)
-
-
-def main(args):
- nargs = len (args)
- if nargs == 4:
- fname_out=args[0]
- fname_in=args[1]
- esn0_db=float(args[2]) # Es/No in dB
- rep=int(args[3]) # number of times the experiment is run to collect enough errors
- else:
- sys.stderr.write ('usage: test_tcm.py fsm_name_out fsm_fname_in Es/No_db repetitions\n')
- sys.exit (1)
-
- # system parameters
- Kb=1024*16 # packet size in bits (make it multiple of 16 so it can be packed in a short)
- fo=trellis.fsm(fname_out) # get the outer FSM specification from a file
- fi=trellis.fsm(fname_in) # get the innner FSM specification from a file
- bitspersymbol = int(round(math.log(fo.I())/math.log(2))) # bits per FSM input symbol
- if fo.O() != fi.I():
- sys.stderr.write ('Incompatible cardinality between outer and inner FSM.\n')
- sys.exit (1)
- K=Kb/bitspersymbol # packet size in trellis steps
- interleaver=trellis.interleaver(K,666) # construct a random interleaver
- modulation = fsm_utils.psk8 # see fsm_utlis.py for available predefined modulations
- dimensionality = modulation[0]
- constellation = modulation[1]
- if len(constellation)/dimensionality != fi.O():
- sys.stderr.write ('Incompatible FSM output cardinality and modulation size.\n')
- sys.exit (1)
- # calculate average symbol energy
- Es = 0
- for i in range(len(constellation)):
- Es = Es + constellation[i]**2
- Es = Es / (len(constellation)/dimensionality)
- N0=Es/pow(10.0,esn0_db/10.0); # calculate noise variance
-
- tot_s=0 # total number of transmitted shorts
- terr_s=0 # total number of shorts in error
- terr_p=0 # total number of packets in error
- for i in range(rep):
- (s,e)=run_test(fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,constellation,N0,-long(666+i)) # run experiment with different seed to get different noise realizations
- tot_s=tot_s+s
- terr_s=terr_s+e
- terr_p=terr_p+(terr_s!=0)
- if ((i+1)%100==0) : # display progress
- print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
- # estimate of the (short or bit) error rate
- print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
-
-
-if __name__ == '__main__':
- main (sys.argv[1:])
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr
-from gnuradio import audio
-from gnuradio import trellis
-from gnuradio import eng_notation
-import math
-import sys
-import random
-import fsm_utils
-
-
-
-
-def run_test (fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed):
- fg = gr.flow_graph ()
-
-
- # TX
- src = gr.lfsr_32k_source_s()
- src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
- s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the outer FSM input cardinality
- enc_out = trellis.encoder_ss(fo,0) # initial state = 0
- inter = trellis.permutation(interleaver.K(),interleaver.INTER(),1,gr.sizeof_short)
- enc_in = trellis.encoder_ss(fi,0) # initial state = 0
- mod = gr.chunks_to_symbols_sf(constellation,dimensionality)
-
- # CHANNEL
- add = gr.add_ff()
- noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
-
- # RX
- metrics_in = trellis.metrics_f(fi.O(),dimensionality,constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for innner Viterbi
- gnd = gr.vector_source_f([0],True);
- siso_in = trellis.siso_f(fi,K,0,-1,True,False,trellis.TRELLIS_MIN_SUM) # Put -1 if the Initial/Final states are not set.
- deinter = trellis.permutation(interleaver.K(),interleaver.DEINTER(),fi.I(),gr.sizeof_float)
- va_out = trellis.viterbi_s(fo,K,0,-1) # Put -1 if the Initial/Final states are not set.
- fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
- dst = gr.check_lfsr_32k_s()
-
- fg.connect (src,src_head,s2fsmi,enc_out,inter,enc_in,mod)
- fg.connect (mod,(add,0))
- fg.connect (noise,(add,1))
- fg.connect (add,metrics_in)
- fg.connect (gnd,(siso_in,0))
- fg.connect (metrics_in,(siso_in,1))
- fg.connect (siso_in,deinter,va_out,fsmi2s,dst)
-
- fg.run()
-
- ntotal = dst.ntotal ()
- nright = dst.nright ()
- runlength = dst.runlength ()
- return (ntotal,ntotal-nright)
-
-
-def main(args):
- nargs = len (args)
- if nargs == 4:
- fname_out=args[0]
- fname_in=args[1]
- esn0_db=float(args[2]) # Es/No in dB
- rep=int(args[3]) # number of times the experiment is run to collect enough errors
- else:
- sys.stderr.write ('usage: test_tcm.py fsm_name_out fsm_fname_in Es/No_db repetitions\n')
- sys.exit (1)
-
- # system parameters
- Kb=1024*16 # packet size in bits (make it multiple of 16 so it can be packed in a short)
- fo=trellis.fsm(fname_out) # get the outer FSM specification from a file
- fi=trellis.fsm(fname_in) # get the innner FSM specification from a file
- bitspersymbol = int(round(math.log(fo.I())/math.log(2))) # bits per FSM input symbol
- if fo.O() != fi.I():
- sys.stderr.write ('Incompatible cardinality between outer and inner FSM.\n')
- sys.exit (1)
- K=Kb/bitspersymbol # packet size in trellis steps
- interleaver=trellis.interleaver(K,666) # construct a random interleaver
- modulation = fsm_utils.psk8 # see fsm_utlis.py for available predefined modulations
- dimensionality = modulation[0]
- constellation = modulation[1]
- if len(constellation)/dimensionality != fi.O():
- sys.stderr.write ('Incompatible FSM output cardinality and modulation size.\n')
- sys.exit (1)
- # calculate average symbol energy
- Es = 0
- for i in range(len(constellation)):
- Es = Es + constellation[i]**2
- Es = Es / (len(constellation)/dimensionality)
- N0=Es/pow(10.0,esn0_db/10.0); # calculate noise variance
-
-
- tot_s=0 # total number of transmitted shorts
- terr_s=0 # total number of shorts in error
- terr_p=0 # total number of packets in error
- for i in range(rep):
- (s,e)=run_test(fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,constellation,N0,-long(666+i)) # run experiment with different seed to get different noise realizations
- tot_s=tot_s+s
- terr_s=terr_s+e
- terr_p=terr_p+(terr_s!=0)
- if ((i+1)%100==0) : # display progress
- print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
- # estimate of the (short or bit) error rate
- print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
-
-
-
-if __name__ == '__main__':
- main (sys.argv[1:])
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr
-from gnuradio import audio
-from gnuradio import trellis
-from gnuradio import eng_notation
-import math
-import sys
-import random
-import fsm_utils
-
-
-
-def make_rx(fg,fo,fi,dimensionality,constellation,K,interleaver,IT,Es,N0,type):
- metrics_in = trellis.metrics_f(fi.O(),dimensionality,constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for innner Viterbi
- scale = gr.multiply_const_ff(1.0/N0)
- gnd = gr.vector_source_f([0],True);
-
- inter=[]
- deinter=[]
- siso_in=[]
- siso_out=[]
-
- # generate all blocks
- for it in range(IT):
- inter.append( trellis.permutation(interleaver.K(),interleaver.INTER(),fi.I(),gr.sizeof_float) )
- siso_in.append( trellis.siso_f(fi,K,0,-1,True,False,type) )
- deinter.append( trellis.permutation(interleaver.K(),interleaver.DEINTER(),fi.I(),gr.sizeof_float) )
- if it < IT-1:
- siso_out.append( trellis.siso_f(fo,K,0,-1,False,True,type) )
- else:
- siso_out.append( trellis.viterbi_s(fo,K,0,-1) ) # no soft outputs needed
-
- # connect first stage
- fg.connect (gnd,inter[0])
- fg.connect (metrics_in,scale)
- fg.connect (scale,(siso_in[0],1))
-
- # connect the rest
- for it in range(IT):
- if it < IT-1:
- fg.connect (metrics_in,(siso_in[it+1],1))
- fg.connect (siso_in[it],deinter[it],(siso_out[it],1))
- fg.connect (gnd,(siso_out[it],0))
- fg.connect (siso_out[it],inter[it+1])
- fg.connect (inter[it],(siso_in[it],0))
- else:
- fg.connect (siso_in[it],deinter[it],siso_out[it])
- fg.connect (inter[it],(siso_in[it],0))
-
- return (metrics_in,siso_out[IT-1])
-
-
-def run_test (fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,constellation,Es,N0,IT,seed):
- fg = gr.flow_graph ()
-
-
- # TX
- src = gr.lfsr_32k_source_s()
- src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
- s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the outer FSM input cardinality
- enc_out = trellis.encoder_ss(fo,0) # initial state = 0
- inter = trellis.permutation(interleaver.K(),interleaver.INTER(),1,gr.sizeof_short)
- enc_in = trellis.encoder_ss(fi,0) # initial state = 0
- mod = gr.chunks_to_symbols_sf(constellation,dimensionality)
-
- # CHANNEL
- add = gr.add_ff()
- noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
-
- # RX
- (head,tail) = make_rx(fg,fo,fi,dimensionality,constellation,K,interleaver,IT,Es,N0,trellis.TRELLIS_MIN_SUM)
- #(head,tail) = make_rx(fg,fo,fi,dimensionality,constellation,K,interleaver,IT,Es,N0,trellis.TRELLIS_SUM_PRODUCT)
- fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
- dst = gr.check_lfsr_32k_s()
-
- fg.connect (src,src_head,s2fsmi,enc_out,inter,enc_in,mod)
- fg.connect (mod,(add,0))
- fg.connect (noise,(add,1))
- fg.connect (add,head)
- fg.connect (tail,fsmi2s,dst)
-
- fg.run()
-
- #print enc_out.ST(), enc_in.ST()
-
- ntotal = dst.ntotal ()
- nright = dst.nright ()
- runlength = dst.runlength ()
- return (ntotal,ntotal-nright)
-
-
-def main(args):
- nargs = len (args)
- if nargs == 4:
- fname_out=args[0]
- fname_in=args[1]
- esn0_db=float(args[2]) # Es/No in dB
- rep=int(args[3]) # number of times the experiment is run to collect enough errors
- else:
- sys.stderr.write ('usage: test_tcm.py fsm_name_out fsm_fname_in Es/No_db repetitions\n')
- sys.exit (1)
-
- # system parameters
- Kb=1024*16 # packet size in bits (make it multiple of 16 so it can be packed in a short)
- fo=trellis.fsm(fname_out) # get the outer FSM specification from a file
- fi=trellis.fsm(fname_in) # get the innner FSM specification from a file
- bitspersymbol = int(round(math.log(fo.I())/math.log(2))) # bits per FSM input symbol
- if fo.O() != fi.I():
- sys.stderr.write ('Incompatible cardinality between outer and inner FSM.\n')
- sys.exit (1)
- K=Kb/bitspersymbol # packet size in trellis steps
- interleaver=trellis.interleaver(K,666) # construct a random interleaver
- modulation = fsm_utils.psk8 # see fsm_utlis.py for available predefined modulations
- dimensionality = modulation[0]
- constellation = modulation[1]
- if len(constellation)/dimensionality != fi.O():
- sys.stderr.write ('Incompatible FSM output cardinality and modulation size.\n')
- sys.exit (1)
- # calculate average symbol energy
- Es = 0
- for i in range(len(constellation)):
- Es = Es + constellation[i]**2
- Es = Es / (len(constellation)/dimensionality)
- N0=Es/pow(10.0,esn0_db/10.0); # calculate noise variance
- IT = 3 # number of turbo iterations
-
- tot_s=0 # total number of transmitted shorts
- terr_s=0 # total number of shorts in error
- terr_p=0 # total number of packets in error
- for i in range(rep):
- (s,e)=run_test(fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,constellation,Es,N0,IT,-long(666+i)) # run experiment with different seed to get different noise realizations
- tot_s=tot_s+s
- terr_s=terr_s+e
- terr_p=terr_p+(terr_s!=0)
- if ((i+1)%10==0): # display progress
- print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
- # estimate of the (short or bit) error rate
- print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
-
-
-if __name__ == '__main__':
- main (sys.argv[1:])
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr
-from gnuradio import audio
-from gnuradio import trellis
-from gnuradio import eng_notation
-import math
-import sys
-import random
-import fsm_utils
-
-def run_test (f,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed):
- fg = gr.flow_graph ()
-
-
- # TX
- #packet = [0]*Kb
- #for i in range(Kb-1*16): # last 16 bits = 0 to drive the final state to 0
- #packet[i] = random.randint(0, 1) # random 0s and 1s
- #src = gr.vector_source_s(packet,False)
- src = gr.lfsr_32k_source_s()
- src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
- #b2s = gr.unpacked_to_packed_ss(1,gr.GR_MSB_FIRST) # pack bits in shorts
- s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the FSM input cardinality
- enc = trellis.encoder_ss(f,0) # initial state = 0
- mod = gr.chunks_to_symbols_sf(constellation,dimensionality)
-
- # CHANNEL
- add = gr.add_ff()
- noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
-
- # RX
- metrics = trellis.metrics_f(f.O(),dimensionality,constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for Viterbi
- va = trellis.viterbi_s(f,K,0,-1) # Put -1 if the Initial/Final states are not set.
- fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
- #s2b = gr.packed_to_unpacked_ss(1,gr.GR_MSB_FIRST) # unpack shorts to bits
- #dst = gr.vector_sink_s();
- dst = gr.check_lfsr_32k_s()
-
-
- fg.connect (src,src_head,s2fsmi,enc,mod)
- #fg.connect (src,b2s,s2fsmi,enc,mod)
- fg.connect (mod,(add,0))
- fg.connect (noise,(add,1))
- fg.connect (add,metrics)
- fg.connect (metrics,va,fsmi2s,dst)
- #fg.connect (metrics,va,fsmi2s,s2b,dst)
-
-
- fg.run()
-
- # A bit of cheating: run the program once and print the
- # final encoder state..
- # Then put it as the last argument in the viterbi block
- #print "final state = " , enc.ST()
-
- ntotal = dst.ntotal ()
- nright = dst.nright ()
- runlength = dst.runlength ()
- #ntotal = len(packet)
- #if len(dst.data()) != ntotal:
- #print "Error: not enough data\n"
- #nright = 0;
- #for i in range(ntotal):
- #if packet[i]==dst.data()[i]:
- #nright=nright+1
- #else:
- #print "Error in ", i
- return (ntotal,ntotal-nright)
-
-
-
-
-def main(args):
- nargs = len (args)
- if nargs == 3:
- fname=args[0]
- esn0_db=float(args[1]) # Es/No in dB
- rep=int(args[2]) # number of times the experiment is run to collect enough errors
- else:
- sys.stderr.write ('usage: test_tcm.py fsm_fname Es/No_db repetitions\n')
- sys.exit (1)
-
- # system parameters
- f=trellis.fsm(fname) # get the FSM specification from a file
- Kb=1024*16 # packet size in bits (make it multiple of 16 so it can be packed in a short)
- bitspersymbol = int(round(math.log(f.I())/math.log(2))) # bits per FSM input symbol
- K=Kb/bitspersymbol # packet size in trellis steps
- modulation = fsm_utils.psk4 # see fsm_utlis.py for available predefined modulations
- dimensionality = modulation[0]
- constellation = modulation[1]
- if len(constellation)/dimensionality != f.O():
- sys.stderr.write ('Incompatible FSM output cardinality and modulation size.\n')
- sys.exit (1)
- # calculate average symbol energy
- Es = 0
- for i in range(len(constellation)):
- Es = Es + constellation[i]**2
- Es = Es / (len(constellation)/dimensionality)
- N0=Es/pow(10.0,esn0_db/10.0); # calculate noise variance
-
- tot_s=0 # total number of transmitted shorts
- terr_s=0 # total number of shorts in error
- terr_p=0 # total number of packets in error
- for i in range(rep):
- (s,e)=run_test(f,Kb,bitspersymbol,K,dimensionality,constellation,N0,-long(666+i)) # run experiment with different seed to get different noise realizations
- tot_s=tot_s+s
- terr_s=terr_s+e
- terr_p=terr_p+(terr_s!=0)
- if ((i+1)%100==0) : # display progress
- print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
- # estimate of the (short or bit) error rate
- print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
-
-
-
-if __name__ == '__main__':
- main (sys.argv[1:])
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr
-from gnuradio import audio
-from gnuradio import trellis
-from gnuradio import eng_notation
-import math
-import sys
-import random
-import fsm_utils
-
-def run_test (f,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed):
- fg = gr.flow_graph ()
-
- # TX
- packet = [0]*Kb
- # this for loop is TOO slow!!!
- for i in range(Kb-1*16): # last 16 bits = 0 to drive the final state to 0
- packet[i] = random.randint(0, 1) # random 0s and 1s
- src = gr.vector_source_s(packet,False)
- #src = gr.lfsr_32k_source_s()
- #src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
- b2s = gr.unpacked_to_packed_ss(1,gr.GR_MSB_FIRST) # pack bits in shorts
- s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the FSM input cardinality
- enc = trellis.encoder_ss(f,0) # initial state = 0
- mod = gr.chunks_to_symbols_sf(constellation,dimensionality)
-
-
- # CHANNEL
- add = gr.add_ff()
- noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
-
-
- # RX
- metrics = trellis.metrics_f(f.O(),dimensionality,constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for Viterbi
- va = trellis.viterbi_s(f,K,0,-1) # Put -1 if the Initial/Final states are not set.
- fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
- s2b = gr.packed_to_unpacked_ss(1,gr.GR_MSB_FIRST) # unpack shorts to bits
- dst = gr.vector_sink_s();
- #dst = gr.check_lfsr_32k_s();
-
-
- #fg.connect (src,src_head,s2fsmi,enc,mod)
- fg.connect (src,b2s,s2fsmi,enc,mod)
- fg.connect (mod,(add,0))
- fg.connect (noise,(add,1))
- fg.connect (add,metrics)
- #fg.connect (metrics,va,fsmi2s,dst)
- fg.connect (metrics,va,fsmi2s,s2b,dst)
-
-
- fg.run()
-
- # A bit of cheating: run the program once and print the
- # final encoder state..
- # Then put it as the last argument in the viterbi block
- #print "final state = " , enc.ST()
-
- #ntotal = dst.ntotal ()
- #nright = dst.nright ()
- #runlength = dst.runlength ()
- ntotal = len(packet)
- if len(dst.data()) != ntotal:
- print "Error: not enough data\n"
- nright = 0;
- # this for loop is TOO slow!!!
- for i in range(ntotal):
- if packet[i]==dst.data()[i]:
- nright=nright+1
- #else:
- #print "Error in ", i
- return (ntotal,ntotal-nright)
-
-
-
-
-def main(args):
- nargs = len (args)
- if nargs == 3:
- fname=args[0]
- esn0_db=float(args[1]) # Es/No in dB
- rep=int(args[2]) # number of times the experiment is run to collect enough errors
- else:
- sys.stderr.write ('usage: test_tcm.py fsm_fname Es/No_db repetitions\n')
- sys.exit (1)
-
- # system parameters
- f=trellis.fsm(fname) # get the FSM specification from a file
- Kb=1024*16 # packet size in bits (make it multiple of 16 so it can be packed in a short)
- bitspersymbol = int(round(math.log(f.I())/math.log(2))) # bits per FSM input symbol
- K=Kb/bitspersymbol # packet size in trellis steps
- modulation = fsm_utils.psk4 # see fsm_utlis.py for available predefined modulations
- dimensionality = modulation[0]
- constellation = modulation[1]
- if len(constellation)/dimensionality != f.O():
- sys.stderr.write ('Incompatible FSM output cardinality and modulation size.\n')
- sys.exit (1)
- # calculate average symbol energy
- Es = 0
- for i in range(len(constellation)):
- Es = Es + constellation[i]**2
- Es = Es / (len(constellation)/dimensionality)
- N0=Es/pow(10.0,esn0_db/10.0); # noise variance
-
- tot_s=0 # total number of transmitted shorts
- terr_s=0 # total number of shorts in error
- terr_p=0 # total number of packets in error
- for i in range(rep):
- (s,e)=run_test(f,Kb,bitspersymbol,K,dimensionality,constellation,N0,-long(666+i)) # run experiment with different seed to get different noise realizations
- tot_s=tot_s+s
- terr_s=terr_s+e
- terr_p=terr_p+(terr_s!=0)
- if ((i+1)%1==0) : # display progress
- print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
- # estimate of the (short or bit) error rate
- print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
-
-
-
-if __name__ == '__main__':
- main (sys.argv[1:])
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr
-from gnuradio import audio
-from gnuradio import trellis
-from gnuradio import eng_notation
-import math
-import sys
-import random
-import fsm_utils
-
-def run_test (f,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed):
- fg = gr.flow_graph ()
-
-
- # TX
- #packet = [0]*Kb
- #for i in range(Kb-1*16): # last 16 bits = 0 to drive the final state to 0
- #packet[i] = random.randint(0, 1) # random 0s and 1s
- #src = gr.vector_source_s(packet,False)
- src = gr.lfsr_32k_source_s()
- src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
- #b2s = gr.unpacked_to_packed_ss(1,gr.GR_MSB_FIRST) # pack bits in shorts
- s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the FSM input cardinality
- enc = trellis.encoder_ss(f,0) # initial state = 0
- mod = gr.chunks_to_symbols_sf(constellation,dimensionality)
-
- # CHANNEL
- add = gr.add_ff()
- noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
-
- # RX
- metrics = trellis.metrics_f(f.O(),dimensionality,constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for Viterbi
- va = trellis.viterbi_s(f,K,0,-1) # Put -1 if the Initial/Final states are not set.
- fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
- #s2b = gr.packed_to_unpacked_ss(1,gr.GR_MSB_FIRST) # unpack shorts to bits
- #dst = gr.vector_sink_s();
- dst = gr.check_lfsr_32k_s()
-
-
- fg.connect (src,src_head,s2fsmi,enc,mod)
- #fg.connect (src,b2s,s2fsmi,enc,mod)
- fg.connect (mod,(add,0))
- fg.connect (noise,(add,1))
- fg.connect (add,metrics)
- fg.connect (metrics,va,fsmi2s,dst)
- #fg.connect (metrics,va,fsmi2s,s2b,dst)
-
-
- fg.run()
-
- # A bit of cheating: run the program once and print the
- # final encoder state..
- # Then put it as the last argument in the viterbi block
- #print "final state = " , enc.ST()
-
- ntotal = dst.ntotal ()
- nright = dst.nright ()
- runlength = dst.runlength ()
- #ntotal = len(packet)
- #if len(dst.data()) != ntotal:
- #print "Error: not enough data\n"
- #nright = 0;
- #for i in range(ntotal):
- #if packet[i]==dst.data()[i]:
- #nright=nright+1
- #else:
- #print "Error in ", i
- return (ntotal,ntotal-nright)
-
-
-
-
-def main(args):
- nargs = len (args)
- if nargs == 2:
- esn0_db=float(args[0]) # Es/No in dB
- rep=int(args[1]) # number of times the experiment is run to collect enough errors
- else:
- sys.stderr.write ('usage: test_tcm2.py Es/No_db repetitions\n')
- sys.exit (1)
-
- # system parameters
- f=trellis.fsm(1,2,[5,7]) # generate FSM specification from the generator matrix
- Kb=1024*16 # packet size in bits (make it multiple of 16 so it can be packed in a short)
- bitspersymbol = int(round(math.log(f.I())/math.log(2))) # bits per FSM input symbol
- K=Kb/bitspersymbol # packet size in trellis steps
- modulation = fsm_utils.psk4 # see fsm_utlis.py for available predefined modulations
- dimensionality = modulation[0]
- constellation = modulation[1]
- if len(constellation)/dimensionality != f.O():
- sys.stderr.write ('Incompatible FSM output cardinality and modulation size.\n')
- sys.exit (1)
- # calculate average symbol energy
- Es = 0
- for i in range(len(constellation)):
- Es = Es + constellation[i]**2
- Es = Es / (len(constellation)/dimensionality)
- N0=Es/pow(10.0,esn0_db/10.0); # calculate noise variance
-
- tot_s=0 # total number of transmitted shorts
- terr_s=0 # total number of shorts in error
- terr_p=0 # total number of packets in error
- for i in range(rep):
- (s,e)=run_test(f,Kb,bitspersymbol,K,dimensionality,constellation,N0,-long(666+i)) # run experiment with different seed to get different noise realizations
- tot_s=tot_s+s
- terr_s=terr_s+e
- terr_p=terr_p+(terr_s!=0)
- if ((i+1)%100==0) : # display progress
- print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
- # estimate of the (short or bit) error rate
- print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
-
-
-if __name__ == '__main__':
- main (sys.argv[1:])
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr
-from gnuradio import audio
-from gnuradio import trellis
-from gnuradio import eng_notation
-import math
-import sys
-import fsm_utils
-
-def run_test (f,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed):
- fg = gr.flow_graph ()
-
- # TX
- src = gr.lfsr_32k_source_s()
- src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
- s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the FSM input cardinality
- enc = trellis.encoder_ss(f,0) # initial state = 0
- mod = gr.chunks_to_symbols_sf(constellation,dimensionality)
-
-
- # CHANNEL
- add = gr.add_ff()
- noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
-
-
- # RX
- va = trellis.viterbi_combined_fs(f,K,0,-1,dimensionality,constellation,trellis.TRELLIS_EUCLIDEAN) # Put -1 if the Initial/Final states are not set.
- fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
- dst = gr.check_lfsr_32k_s();
-
-
- fg.connect (src,src_head,s2fsmi,enc,mod)
- fg.connect (mod,(add,0))
- fg.connect (noise,(add,1))
- fg.connect (add,va,fsmi2s,dst)
-
-
- fg.run()
-
- # A bit of cheating: run the program once and print the
- # final encoder state..
- # Then put it as the last argument in the viterbi block
- #print "final state = " , enc.ST()
-
- ntotal = dst.ntotal ()
- nright = dst.nright ()
- runlength = dst.runlength ()
-
- return (ntotal,ntotal-nright)
-
-
-
-
-def main(args):
- nargs = len (args)
- if nargs == 3:
- fname=args[0]
- esn0_db=float(args[1]) # Es/No in dB
- rep=int(args[2]) # number of times the experiment is run to collect enough errors
- else:
- sys.stderr.write ('usage: test_tcm_combined.py fsm_fname Es/No_db repetitions\n')
- sys.exit (1)
-
- # system parameters
- f=trellis.fsm(fname) # get the FSM specification from a file (will hopefully be automated in the future...)
- Kb=1024*16 # packet size in bits (make it multiple of 16)
- bitspersymbol = int(round(math.log(f.I())/math.log(2))) # bits per FSM input symbol
- K=Kb/bitspersymbol # packet size in trellis steps
- modulation = fsm_utils.psk4 # see fsm_utils.py for available predefined modulations
- dimensionality = modulation[0]
- constellation = modulation[1]
- if len(constellation)/dimensionality != f.O():
- sys.stderr.write ('Incompatible FSM output cardinality and modulation size.\n')
- sys.exit (1)
- # calculate average symbol energy
- Es = 0
- for i in range(len(constellation)):
- Es = Es + constellation[i]**2
- Es = Es / (len(constellation)/dimensionality)
- N0=Es/pow(10.0,esn0_db/10.0); # noise variance
-
- tot_s=0 # total number of transmitted shorts
- terr_s=0 # total number of shorts in error
- terr_p=0 # total number of packets in error
- for i in range(rep):
- (s,e)=run_test(f,Kb,bitspersymbol,K,dimensionality,constellation,N0,-long(666+i)) # run experiment with different seed to get different noise realizations
- tot_s=tot_s+s
- terr_s=terr_s+e
- terr_p=terr_p+(terr_s!=0)
- if ((i+1)%100==0) : # display progress
- print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
- # estimate of the (short or bit) error rate
- print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
-
-
-
-if __name__ == '__main__':
- main (sys.argv[1:])
-
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr
-from gnuradio import audio
-from gnuradio import trellis
-from gnuradio import eng_notation
-import math
-import sys
-import fsm_utils
-
-def run_test (f,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed,P):
- fg = gr.flow_graph ()
-
- # TX
- src = gr.lfsr_32k_source_s()
- src_head = gr.head (gr.sizeof_short,Kb/16*P) # packet size in shorts
- s2fsmi=gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the FSM input cardinality
- s2p = gr.stream_to_streams(gr.sizeof_short,P) # serial to parallel
- enc = trellis.encoder_ss(f,0) # initiali state = 0
- mod = gr.chunks_to_symbols_sf(constellation,dimensionality)
-
- # CHANNEL
- add=[]
- noise=[]
- for i in range(P):
- add.append(gr.add_ff())
- noise.append(gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed))
-
- # RX
- metrics = trellis.metrics_f(f.O(),dimensionality,constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for Viterbi
- va = trellis.viterbi_s(f,K,0,-1) # Put -1 if the Initial/Final states are not set.
- p2s = gr.streams_to_stream(gr.sizeof_short,P) # parallel to serial
- fsmi2s=gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
- dst = gr.check_lfsr_32k_s()
-
- fg.connect (src,src_head,s2fsmi,s2p)
- for i in range(P):
- fg.connect ((s2p,i),(enc,i),(mod,i))
- fg.connect ((mod,i),(add[i],0))
- fg.connect (noise[i],(add[i],1))
- fg.connect (add[i],(metrics,i))
- fg.connect ((metrics,i),(va,i),(p2s,i))
- fg.connect (p2s,fsmi2s,dst)
-
-
- fg.run()
-
- # A bit of cheating: run the program once and print the
- # final encoder state.
- # Then put it as the last argument in the viterbi block
- #print "final state = " , enc.ST()
-
- ntotal = dst.ntotal ()
- nright = dst.nright ()
- runlength = dst.runlength ()
-
- return (ntotal,ntotal-nright)
-
-
-
-def main(args):
- nargs = len (args)
- if nargs == 3:
- fname=args[0]
- esn0_db=float(args[1]) # Es/No in dB
- rep=int(args[2]) # number of times the experiment is run to collect enough errors
- else:
- sys.stderr.write ('usage: test_tcm.py fsm_fname Es/No_db repetitions\n')
- sys.exit (1)
-
- # system parameters
- f=trellis.fsm(fname) # get the FSM specification from a file
- P=4 # how many parallel streams?
- Kb=1024*16 # packet size in bits (make it multiple of 16 so it can be packed in a short)
- bitspersymbol = int(round(math.log(f.I())/math.log(2))) # bits per FSM input symbol
- K=Kb/bitspersymbol # packet size in trellis steps
- modulation = fsm_utils.psk4 # see fsm_utlis.py for available predefined modulations
- dimensionality = modulation[0]
- constellation = modulation[1]
- if len(constellation)/dimensionality != f.O():
- sys.stderr.write ('Incompatible FSM output cardinality and modulation size.\n')
- sys.exit (1)
- # calculate average symbol energy
- Es = 0
- for i in range(len(constellation)):
- Es = Es + constellation[i]**2
- Es = Es / (len(constellation)/dimensionality)
- N0=Es/pow(10.0,esn0_db/10.0); # calculate noise variance
-
- tot_s=0 # total number of transmitted shorts
- terr_s=0 # total number of shorts in error
- terr_p=0 # total number of packets in error
- for i in range(rep):
- (s,e)=run_test(f,Kb,bitspersymbol,K,dimensionality,constellation,N0,-long(666+i),P) # run experiment with different seed to get different noise realizations
- tot_s=tot_s+s
- terr_s=terr_s+e
- terr_p=terr_p+(terr_s!=0)
- if ((i+1)%100==0) : # display progress
- print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
- # estimate of the (short or bit) error rate
- print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
-
-
-if __name__ == '__main__':
- main (sys.argv[1:])
-
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr
-from gnuradio import audio
-from gnuradio import trellis
-from gnuradio import eng_notation
-import math
-import sys
-import fsm_utils
-
-
-def make_rx(fg,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,type):
- metrics_in = trellis.metrics_f(fi.O(),dimensionality,tot_constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for innner SISO
- scale = gr.multiply_const_ff(1.0/N0)
- gnd = gr.vector_source_f([0],True);
-
- inter=[]
- deinter=[]
- siso_in=[]
- siso_out=[]
-
- # generate all blocks
- for it in range(IT):
- inter.append( trellis.permutation(interleaver.K(),interleaver.INTER(),fi.I(),gr.sizeof_float) )
- siso_in.append( trellis.siso_f(fi,K,0,-1,True,False,type) )
- deinter.append( trellis.permutation(interleaver.K(),interleaver.DEINTER(),fi.I(),gr.sizeof_float) )
- if it < IT-1:
- siso_out.append( trellis.siso_f(fo,K,0,-1,False,True,type) )
- else:
- siso_out.append( trellis.viterbi_s(fo,K,0,-1) ) # no soft outputs needed
-
- # connect first stage
- fg.connect (gnd,inter[0])
- fg.connect (metrics_in,scale)
- fg.connect (scale,(siso_in[0],1))
-
- # connect the rest
- for it in range(IT):
- if it < IT-1:
- fg.connect (metrics_in,(siso_in[it+1],1))
- fg.connect (siso_in[it],deinter[it],(siso_out[it],1))
- fg.connect (gnd,(siso_out[it],0))
- fg.connect (siso_out[it],inter[it+1])
- fg.connect (inter[it],(siso_in[it],0))
- else:
- fg.connect (siso_in[it],deinter[it],siso_out[it])
- fg.connect (inter[it],(siso_in[it],0))
-
- return (metrics_in,siso_out[IT-1])
-
-
-def run_test (fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,tot_constellation,Es,N0,IT,seed):
- fg = gr.flow_graph ()
-
- # TX
- src = gr.lfsr_32k_source_s()
- src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
- s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the iouter FSM input cardinality
- enc_out = trellis.encoder_ss(fo,0) # initial state = 0
- inter = trellis.permutation(interleaver.K(),interleaver.INTER(),1,gr.sizeof_short)
- enc_in = trellis.encoder_ss(fi,0) # initial state = 0
- # essentially here we implement the combination of modulation and channel as a memoryless modulation (the memory induced by the channel is hidden in the innner FSM)
- mod = gr.chunks_to_symbols_sf(tot_constellation,dimensionality)
-
- # CHANNEL
- add = gr.add_ff()
- noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
-
- # RX
- (head,tail) = make_rx(fg,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,trellis.TRELLIS_MIN_SUM)
- fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
- dst = gr.check_lfsr_32k_s();
-
- fg.connect (src,src_head,s2fsmi,enc_out,inter,enc_in,mod)
- fg.connect (mod,(add,0))
- fg.connect (noise,(add,1))
- fg.connect (add,head)
- fg.connect (tail,fsmi2s,dst)
-
- fg.run()
-
- ntotal = dst.ntotal ()
- nright = dst.nright ()
- runlength = dst.runlength ()
- #print ntotal,nright,runlength
-
- return (ntotal,ntotal-nright)
-
-
-
-
-def main(args):
- nargs = len (args)
- if nargs == 3:
- fname_out=args[0]
- esn0_db=float(args[1])
- rep=int(args[2])
- else:
- sys.stderr.write ('usage: test_turbo_equalization.py fsm_name_out Es/No_db repetitions\n')
- sys.exit (1)
-
- # system parameters
- Kb=64*16 # packet size in bits (multiple of 16)
- modulation = fsm_utils.pam4 # see fsm_utlis.py for available predefined modulations
- channel = fsm_utils.c_channel # see fsm_utlis.py for available predefined test channels
- fo=trellis.fsm(fname_out) # get the outer FSM specification from a file
- fi=trellis.fsm(len(modulation[1]),len(channel)) # generate the FSM automatically
- if fo.O() != fi.I():
- sys.stderr.write ('Incompatible cardinality between outer and inner FSM.\n')
- sys.exit (1)
- bitspersymbol = int(round(math.log(fo.I())/math.log(2))) # bits per FSM input symbol
- K=Kb/bitspersymbol # packet size in trellis steps
- print 'size = ',K
- interleaver=trellis.interleaver(K,666) # construct a random interleaver
- tot_channel = fsm_utils.make_isi_lookup(modulation,channel,True) # generate the lookup table (normalize energy to 1)
- dimensionality = tot_channel[0]
- tot_constellation = tot_channel[1]
- if len(tot_constellation)/dimensionality != fi.O():
- sys.stderr.write ('Incompatible FSM output cardinality and lookup table size.\n')
- sys.exit (1)
- N0=pow(10.0,-esn0_db/10.0); # noise variance
- IT = 3 # number of turbo iterations
-
- tot_s=0 # total number of transmitted shorts
- terr_s=0 # total number of shorts in error
- terr_p=0 # total number of packets in error
-
- for i in range(rep):
- (s,e)=run_test(fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,tot_constellation,1,N0,IT,-long(666+i)) # run experiment with different seed to get different noise realizations
- print s
- tot_s=tot_s+s
- terr_s=terr_s+e
- terr_p=terr_p+(terr_s!=0)
- if ((i+1)%10==0) : # display progress
- print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
- # estimate of the (short or bit) error rate
- print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
-
-
-
-if __name__ == '__main__':
- main (sys.argv[1:])
-
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr
-from gnuradio import audio
-from gnuradio import trellis
-from gnuradio import eng_notation
-import math
-import sys
-import random
-import fsm_utils
-
-def make_rx(fg,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,type):
- metrics_in = trellis.metrics_f(fi.O(),dimensionality,tot_constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for innner SISO
- scale = gr.multiply_const_ff(1.0/N0)
- gnd = gr.vector_source_f([0],True);
-
- inter=[]
- deinter=[]
- siso_in=[]
- siso_out=[]
-
- # generate all blocks
- for it in range(IT):
- inter.append( trellis.permutation(interleaver.K(),interleaver.INTER(),fi.I(),gr.sizeof_float) )
- siso_in.append( trellis.siso_f(fi,K,0,-1,True,False,type) )
- deinter.append( trellis.permutation(interleaver.K(),interleaver.DEINTER(),fi.I(),gr.sizeof_float) )
- if it < IT-1:
- siso_out.append( trellis.siso_f(fo,K,0,-1,False,True,type) )
- else:
- siso_out.append( trellis.viterbi_s(fo,K,0,-1) ) # no soft outputs needed
-
- # connect first stage
- fg.connect (gnd,inter[0])
- fg.connect (metrics_in,scale)
- fg.connect (scale,(siso_in[0],1))
-
- # connect the rest
- for it in range(IT):
- if it < IT-1:
- fg.connect (scale,(siso_in[it+1],1))
- fg.connect (siso_in[it],deinter[it],(siso_out[it],1))
- fg.connect (gnd,(siso_out[it],0))
- fg.connect (siso_out[it],inter[it+1])
- fg.connect (inter[it],(siso_in[it],0))
- else:
- fg.connect (siso_in[it],deinter[it],siso_out[it])
- fg.connect (inter[it],(siso_in[it],0))
-
- return (metrics_in,siso_out[IT-1])
-
-
-def run_test (fo,fi,interleaver,Kb,bitspersymbol,K,channel,modulation,dimensionality,tot_constellation,Es,N0,IT,seed):
- fg = gr.flow_graph ()
- L = len(channel)
-
- # TX
- # this for loop is TOO slow in python!!!
- packet = [0]*(K)
- random.seed(seed)
- for i in range(len(packet)):
- packet[i] = random.randint(0, 2**bitspersymbol - 1) # random symbols
- src = gr.vector_source_s(packet,False)
- enc_out = trellis.encoder_ss(fo,0) # initial state = 0
- inter = trellis.permutation(interleaver.K(),interleaver.INTER(),1,gr.sizeof_short)
- mod = gr.chunks_to_symbols_sf(modulation[1],modulation[0])
-
- # CHANNEL
- isi = gr.fir_filter_fff(1,channel)
- add = gr.add_ff()
- noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
-
- # RX
- (head,tail) = make_rx(fg,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,trellis.TRELLIS_MIN_SUM)
- dst = gr.vector_sink_s();
-
- fg.connect (src,enc_out,inter,mod)
- fg.connect (mod,isi,(add,0))
- fg.connect (noise,(add,1))
- fg.connect (add,head)
- fg.connect (tail,dst)
-
- fg.run()
-
- data = dst.data()
- ntotal = len(data)
- nright=0
- for i in range(ntotal):
- if packet[i]==data[i]:
- nright=nright+1
- #else:
- #print "Error in ", i
-
- return (ntotal,ntotal-nright)
-
-
-
-
-def main(args):
- nargs = len (args)
- if nargs == 3:
- fname_out=args[0]
- esn0_db=float(args[1])
- rep=int(args[2])
- else:
- sys.stderr.write ('usage: test_turbo_equalization.py fsm_name_out Es/No_db repetitions\n')
- sys.exit (1)
-
- # system parameters
- Kb=64*16 # packet size in bits (multiple of 16)
- modulation = fsm_utils.pam4 # see fsm_utlis.py for available predefined modulations
- channel = fsm_utils.c_channel # see fsm_utlis.py for available predefined test channels
- fo=trellis.fsm(fname_out) # get the outer FSM specification from a file
- fi=trellis.fsm(len(modulation[1]),len(channel)) # generate the FSM automatically
- if fo.O() != fi.I():
- sys.stderr.write ('Incompatible cardinality between outer and inner FSM.\n')
- sys.exit (1)
- bitspersymbol = int(round(math.log(fo.I())/math.log(2))) # bits per FSM input symbol
- K=Kb/bitspersymbol # packet size in trellis steps
- interleaver=trellis.interleaver(K,666) # construct a random interleaver
- tot_channel = fsm_utils.make_isi_lookup(modulation,channel,True) # generate the lookup table (normalize energy to 1)
- dimensionality = tot_channel[0]
- tot_constellation = tot_channel[1]
- if len(tot_constellation)/dimensionality != fi.O():
- sys.stderr.write ('Incompatible FSM output cardinality and lookup table size.\n')
- sys.exit (1)
- N0=pow(10.0,-esn0_db/10.0); # noise variance
- IT = 3 # number of turbo iterations
-
- tot_s=0 # total number of transmitted shorts
- terr_s=0 # total number of shorts in error
- terr_p=0 # total number of packets in error
-
- for i in range(rep):
- (s,e)=run_test(fo,fi,interleaver,Kb,bitspersymbol,K,channel,modulation,dimensionality,tot_constellation,1,N0,IT,-long(666+i)) # run experiment with different seed to get different noise realizations
- tot_s=tot_s+s
- terr_s=terr_s+e
- terr_p=terr_p+(terr_s!=0)
- if ((i+1)%10==0) : # display progress
- print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
- # estimate of the (short or bit) error rate
- print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
-
-
-
-if __name__ == '__main__':
- main (sys.argv[1:])
-
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr
-from gnuradio import audio
-from gnuradio import trellis
-from gnuradio import eng_notation
-import math
-import sys
-import random
-import fsm_utils
-
-def make_rx(fg,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,type):
- scale = gr.multiply_const_ff(math.sqrt(1.0/N0))
- gnd = gr.vector_source_f([0],True);
-
- inter=[]
- deinter=[]
- siso_in=[]
- siso_out=[]
-
- # generate all blocks
- for it in range(IT):
- inter.append( trellis.permutation(interleaver.K(),interleaver.INTER(),fi.I(),gr.sizeof_float) )
- siso_in.append( trellis.siso_combined_f(fi,K,0,-1,True,False,type,dimensionality,tot_constellation,trellis.TRELLIS_EUCLIDEAN) )
- deinter.append( trellis.permutation(interleaver.K(),interleaver.DEINTER(),fi.I(),gr.sizeof_float) )
- if it < IT-1:
- siso_out.append( trellis.siso_f(fo,K,0,-1,False,True,type) )
- else:
- siso_out.append( trellis.viterbi_s(fo,K,0,-1) ) # no soft outputs needed
-
- # connect first stage
- fg.connect (gnd,inter[0])
- fg.connect (scale,(siso_in[0],1))
-
- # connect the rest
- for it in range(IT):
- if it < IT-1:
- fg.connect (scale,(siso_in[it+1],1))
- fg.connect (siso_in[it],deinter[it],(siso_out[it],1))
- fg.connect (gnd,(siso_out[it],0))
- fg.connect (siso_out[it],inter[it+1])
- fg.connect (inter[it],(siso_in[it],0))
- else:
- fg.connect (siso_in[it],deinter[it],siso_out[it])
- fg.connect (inter[it],(siso_in[it],0))
-
- return (scale,siso_out[IT-1])
-
-
-def run_test (fo,fi,interleaver,Kb,bitspersymbol,K,channel,modulation,dimensionality,tot_constellation,Es,N0,IT,seed):
- fg = gr.flow_graph ()
- L = len(channel)
-
- # TX
- # this for loop is TOO slow in python!!!
- packet = [0]*(K)
- random.seed(seed)
- for i in range(len(packet)):
- packet[i] = random.randint(0, 2**bitspersymbol - 1) # random symbols
- src = gr.vector_source_s(packet,False)
- enc_out = trellis.encoder_ss(fo,0) # initial state = 0
- inter = trellis.permutation(interleaver.K(),interleaver.INTER(),1,gr.sizeof_short)
- mod = gr.chunks_to_symbols_sf(modulation[1],modulation[0])
-
- # CHANNEL
- isi = gr.fir_filter_fff(1,channel)
- add = gr.add_ff()
- noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
-
- # RX
- (head,tail) = make_rx(fg,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,trellis.TRELLIS_MIN_SUM)
- dst = gr.vector_sink_s();
-
- fg.connect (src,enc_out,inter,mod)
- fg.connect (mod,isi,(add,0))
- fg.connect (noise,(add,1))
- fg.connect (add,head)
- fg.connect (tail,dst)
-
- fg.run()
-
- data = dst.data()
- ntotal = len(data)
- nright=0
- for i in range(ntotal):
- if packet[i]==data[i]:
- nright=nright+1
- #else:
- #print "Error in ", i
-
- return (ntotal,ntotal-nright)
-
-
-
-
-def main(args):
- nargs = len (args)
- if nargs == 3:
- fname_out=args[0]
- esn0_db=float(args[1])
- rep=int(args[2])
- else:
- sys.stderr.write ('usage: test_turbo_equalization.py fsm_name_out Es/No_db repetitions\n')
- sys.exit (1)
-
- # system parameters
- Kb=64*16 # packet size in bits (multiple of 16)
- modulation = fsm_utils.pam4 # see fsm_utlis.py for available predefined modulations
- channel = fsm_utils.c_channel # see fsm_utlis.py for available predefined test channels
- fo=trellis.fsm(fname_out) # get the outer FSM specification from a file
- fi=trellis.fsm(len(modulation[1]),len(channel)) # generate the FSM automatically
- if fo.O() != fi.I():
- sys.stderr.write ('Incompatible cardinality between outer and inner FSM.\n')
- sys.exit (1)
- bitspersymbol = int(round(math.log(fo.I())/math.log(2))) # bits per FSM input symbol
- K=Kb/bitspersymbol # packet size in trellis steps
- interleaver=trellis.interleaver(K,666) # construct a random interleaver
- tot_channel = fsm_utils.make_isi_lookup(modulation,channel,True) # generate the lookup table (normalize energy to 1)
- dimensionality = tot_channel[0]
- N0=pow(10.0,-esn0_db/10.0); # noise variance
- tot_constellation =[0]*len(tot_channel[1])
- for i in range(len(tot_channel[1])):
- tot_constellation[i] = tot_channel[1][i] * math.sqrt(1.0/N0)
- if len(tot_constellation)/dimensionality != fi.O():
- sys.stderr.write ('Incompatible FSM output cardinality and lookup table size.\n')
- sys.exit (1)
- IT = 3 # number of turbo iterations
-
- tot_s=0 # total number of transmitted shorts
- terr_s=0 # total number of shorts in error
- terr_p=0 # total number of packets in error
-
- for i in range(rep):
- (s,e)=run_test(fo,fi,interleaver,Kb,bitspersymbol,K,channel,modulation,dimensionality,tot_constellation,1,N0,IT,-long(666+i)) # run experiment with different seed to get different noise realizations
- tot_s=tot_s+s
- terr_s=terr_s+e
- terr_p=terr_p+(terr_s!=0)
- if ((i+1)%10==0) : # display progress
- print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
- # estimate of the (short or bit) error rate
- print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
-
-
-
-if __name__ == '__main__':
- main (sys.argv[1:])
-
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr
-from gnuradio import audio
-from gnuradio import trellis
-from gnuradio import eng_notation
-import math
-import sys
-import fsm_utils
-
-def run_test (f,Kb,bitspersymbol,K,dimensionality,tot_constellation,N0,seed):
- fg = gr.flow_graph ()
-
- # TX
- src = gr.lfsr_32k_source_s()
- src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
- s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the FSM input cardinality
- enc = trellis.encoder_ss(f,0) # initial state = 0
- # essentially here we implement the combination of modulation and channel as a memoryless modulation (the memory induced by the channel is hidden in the FSM)
- mod = gr.chunks_to_symbols_sf(tot_constellation,dimensionality)
-
- # CHANNEL
- add = gr.add_ff()
- noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
-
- # RX
- metrics = trellis.metrics_f(f.O(),dimensionality,tot_constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for Viterbi
- va = trellis.viterbi_s(f,K,0,-1) # Put -1 if the Initial/Final states are not set.
- fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
- dst = gr.check_lfsr_32k_s();
-
- fg.connect (src,src_head,s2fsmi,enc,mod)
- fg.connect (mod,(add,0))
- fg.connect (noise,(add,1))
- fg.connect (add,metrics)
- fg.connect (metrics,va,fsmi2s,dst)
-
- fg.run()
-
- ntotal = dst.ntotal ()
- nright = dst.nright ()
- runlength = dst.runlength ()
- #print ntotal,nright,runlength
-
- return (ntotal,ntotal-nright)
-
-
-
-
-def main(args):
- nargs = len (args)
- if nargs == 2:
- esn0_db=float(args[0])
- rep=int(args[1])
- else:
- sys.stderr.write ('usage: test_viterbi_equalization.py Es/No_db repetitions\n')
- sys.exit (1)
-
- # system parameters
- Kb=128*16 # packet size in bits (multiple of 16)
- modulation = fsm_utils.pam4 # see fsm_utlis.py for available predefined modulations
- channel = fsm_utils.c_channel # see fsm_utlis.py for available predefined test channels
- f=trellis.fsm(len(modulation[1]),len(channel)) # generate the FSM automatically
- bitspersymbol = int(round(math.log(f.I())/math.log(2))) # bits per FSM input symbol
- K=Kb/bitspersymbol # packet size in trellis steps
-
- tot_channel = fsm_utils.make_isi_lookup(modulation,channel,True) # generate the lookup table (normalize energy to 1)
- dimensionality = tot_channel[0]
- tot_constellation = tot_channel[1]
- N0=pow(10.0,-esn0_db/10.0); # noise variance
- if len(tot_constellation)/dimensionality != f.O():
- sys.stderr.write ('Incompatible FSM output cardinality and lookup table size.\n')
- sys.exit (1)
-
-
- tot_s=0 # total number of transmitted shorts
- terr_s=0 # total number of shorts in error
- terr_p=0 # total number of packets in error
-
- for i in range(rep):
- (s,e)=run_test(f,Kb,bitspersymbol,K,dimensionality,tot_constellation,N0,-long(666+i)) # run experiment with different seed to get different noise realizations
- tot_s=tot_s+s
- terr_s=terr_s+e
- terr_p=terr_p+(terr_s!=0)
- if ((i+1)%100==0) : # display progress
- print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
- # estimate of the (short or bit) error rate
- print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
-
-
-
-if __name__ == '__main__':
- main (sys.argv[1:])
-
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr
-from gnuradio import audio
-from gnuradio import trellis
-from gnuradio import eng_notation
-import math
-import sys
-import random
-import fsm_utils
-
-def run_test (f,Kb,bitspersymbol,K,channel,modulation,dimensionality,tot_constellation,N0,seed):
- fg = gr.flow_graph ()
- L = len(channel)
-
- # TX
- # this for loop is TOO slow in python!!!
- packet = [0]*(K+2*L)
- random.seed(seed)
- for i in range(len(packet)):
- packet[i] = random.randint(0, 2**bitspersymbol - 1) # random symbols
- for i in range(L): # first/last L symbols set to 0
- packet[i] = 0
- packet[len(packet)-i-1] = 0
- src = gr.vector_source_s(packet,False)
- mod = gr.chunks_to_symbols_sf(modulation[1],modulation[0])
-
- # CHANNEL
- isi = gr.fir_filter_fff(1,channel)
- add = gr.add_ff()
- noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
-
- # RX
- skip = gr.skiphead(gr.sizeof_float, L) # skip the first L samples since you know they are coming from the L zero symbols
- #metrics = trellis.metrics_f(f.O(),dimensionality,tot_constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for Viterbi
- #va = trellis.viterbi_s(f,K+L,-1,0) # Put -1 if the Initial/Final states are not set.
- va = trellis.viterbi_combined_fs(f,K+L,0,0,dimensionality,tot_constellation,trellis.TRELLIS_EUCLIDEAN) # using viterbi_combined_fs instead of metrics_f/viterbi_s allows larger packet lengths because metrics_f is complaining for not being able to allocate large buffers. This is due to the large f.O() in this application...
- dst = gr.vector_sink_s()
-
- fg.connect (src,mod)
- fg.connect (mod,isi,(add,0))
- fg.connect (noise,(add,1))
- #fg.connect (add,metrics)
- #fg.connect (metrics,va,dst)
- fg.connect (add,skip,va,dst)
-
- fg.run()
-
- data = dst.data()
- ntotal = len(data) - L
- nright=0
- for i in range(ntotal):
- if packet[i+L]==data[i]:
- nright=nright+1
- #else:
- #print "Error in ", i
-
- return (ntotal,ntotal-nright)
-
-
-def main(args):
- nargs = len (args)
- if nargs == 2:
- esn0_db=float(args[0])
- rep=int(args[1])
- else:
- sys.stderr.write ('usage: test_viterbi_equalization1.py Es/No_db repetitions\n')
- sys.exit (1)
-
- # system parameters
- Kb=128*16 # packet size in bits (multiple of 16)
- modulation = fsm_utils.pam4 # see fsm_utlis.py for available predefined modulations
- channel = fsm_utils.c_channel # see fsm_utlis.py for available predefined test channels
- f=trellis.fsm(len(modulation[1]),len(channel)) # generate the FSM automatically
- bitspersymbol = int(round(math.log(f.I())/math.log(2))) # bits per FSM input symbol
- K=Kb/bitspersymbol # packet size in trellis steps
-
- tot_channel = fsm_utils.make_isi_lookup(modulation,channel,True) # generate the lookup table (normalize energy to 1)
- dimensionality = tot_channel[0]
- tot_constellation = tot_channel[1]
- N0=pow(10.0,-esn0_db/10.0); # noise variance
- if len(tot_constellation)/dimensionality != f.O():
- sys.stderr.write ('Incompatible FSM output cardinality and lookup table size.\n')
- sys.exit (1)
-
- tot_s=0 # total number of transmitted shorts
- terr_s=0 # total number of shorts in error
- terr_p=0 # total number of packets in error
-
- for i in range(rep):
- (s,e)=run_test(f,Kb,bitspersymbol,K,channel,modulation,dimensionality,tot_constellation,N0,-long(666+i)) # run experiment with different seed to get different noise realizations
- tot_s=tot_s+s
- terr_s=terr_s+e
- terr_p=terr_p+(terr_s!=0)
- if ((i+1)%100==0) : # display progress
- print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
- # estimate of the (short or symbol) error rate
- print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
-
-
-
-if __name__ == '__main__':
- main (sys.argv[1:])
# Boston, MA 02110-1301, USA.
#
+include $(top_srcdir)/Makefile.common
+
EXTRA_DIST = \
README \
benchmark_rx.py \
transmit_path.py \
tunnel.py \
tx_voice.py
+
+ourdatadir = $(exampledir)/digital
+ourdata_DATA = $(EXTRA_DIST)
# Boston, MA 02110-1301, USA.
#
+include $(top_srcdir)/Makefile.common
+
EXTRA_DIST = \
encdec.py \
cvsd_test.py
+
+ourdatadir = $(exampledir)/digital_voice
+ourdata_DATA = $(EXTRA_DIST)
\ No newline at end of file
# Boston, MA 02110-1301, USA.
#
+include $(top_srcdir)/Makefile.common
+
EXTRA_DIST = \
multi_fft.py \
multi_file.py \
multi_scope.py
+
+ourdatadir = $(exampledir)/multi-antenna
+ourdata_DATA = $(EXTRA_DIST)
# Boston, MA 02110-1301, USA.
#
-EXTRA_DIST = \
- README \
- multi_usrp_oscope.py \
- multi_usrp_rx_cfile.py
-
+include $(top_srcdir)/Makefile.common
+EXTRA_DIST = \
+ README \
+ multi_usrp_oscope.py \
+ multi_usrp_rx_cfile.py
+ourdatadir = $(exampledir)/multi_usrp
+ourdata_DATA = $(EXTRA_DIST)
# Boston, MA 02110-1301, USA.
#
+include $(top_srcdir)/Makefile.common
+
EXTRA_DIST = \
benchmark_ofdm.py \
benchmark_ofdm_rx.py \
pick_bitrate.py \
receive_path.py \
transmit_path.py
+
+ourdatadir = $(exampledir)/ofdm
+ourdata_DATA = $(EXTRA_DIST)
# Boston, MA 02110-1301, USA.
#
+include $(top_srcdir)/Makefile.common
+
EXTRA_DIST = \
- am_rcv.py \
- ayfabtu.py \
- benchmark_usb.py \
- flexrf_debug.py \
- flexrf_siggen.py \
fm_tx_2_daughterboards.py \
fm_tx4.py \
max_power.py \
- siggen_min2.py \
- test_counting.py \
- test_dft_analysis.py \
- test_dft_synth.py \
- test_digital_loopback_counting.py \
- test_digital_loopback_lfsr.py \
- tvrx_am_rcv_gui.py \
- usrp_fft_old.py \
- usrp_fft.py \
usrp_nbfm_ptt.py \
usrp_nbfm_rcv.py \
- usrp_oscope.py \
- usrp_rx_cfile.py \
- usrp_rx_nogui.py \
- usrp_siggen.py \
usrp_spectrum_sense.py \
usrp_tv_rcv_nogui.py \
usrp_tv_rcv.py \
usrp_wfm_rcv2_nogui.py \
usrp_wxapt_rcv.py \
wfm_rcv_file.py
+
+ourdatadir = $(exampledir)/usrp
+ourdata_DATA = $(EXTRA_DIST)
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr, eng_notation
-from gnuradio import audio
-from gnuradio import usrp
-from gnuradio.eng_option import eng_option
-from optparse import OptionParser
-import sys
-import math
-
-from gnuradio.wxgui import stdgui, fftsink
-import wx
-
-class am_rx_graph (stdgui.gui_flow_graph):
- def __init__(self,frame,panel,vbox,argv):
- stdgui.gui_flow_graph.__init__ (self,frame,panel,vbox,argv)
-
- station = parseargs(argv[1:])
- offset_freq = 30e3
- IF_freq = offset_freq - station
-
- adc_rate = 64e6
- usrp_decim = 250
- if_rate = adc_rate / usrp_decim # 256 kHz
- if_decim = 4
- demod_rate = if_rate / if_decim # 64 kHz
- audio_decimation = 2
- audio_rate = demod_rate / audio_decimation # 16 kHz
-
- # usrp is data source
- src = usrp.source_c (0, usrp_decim)
- src.set_rx_freq (0, IF_freq)
- actual_IF_freq =src.rx_freq(0)
- actual_offset = actual_IF_freq + station
-
- #print actual_IF_freq
- #print actual_offset
-
- src.set_pga(0,20)
- # sound card as final sink
- audio_sink = audio.sink (int (audio_rate))
-
- channel_coeffs = \
- gr.firdes.low_pass (1.0, # gain
- if_rate, # sampling rate
- 9e3, # low pass cutoff freq
- 10e3, # width of trans. band
- gr.firdes.WIN_HANN)
-
- ddc = gr.freq_xlating_fir_filter_ccf (if_decim,channel_coeffs,-actual_offset,if_rate)
-
- magblock = gr.complex_to_mag()
- volumecontrol = gr.multiply_const_ff(.003)
-
- # Deemphasis. Is this necessary on AM?
- TAU = 75e-6 # 75us in US, 50us in EUR
- fftaps = [ 1 - math.exp(-1/TAU/if_rate), 0]
- fbtaps= [ 0 , math.exp(-1/TAU/if_rate) ]
-
- deemph = gr.iir_filter_ffd(fftaps,fbtaps)
-
- # compute FIR filter taps for audio filter
- width_of_transition_band = audio_rate / 8
- audio_coeffs = gr.firdes.low_pass (1.0, # gain
- if_rate, # sampling rate
- 9e3, #audio_rate/2 - width_of_transition_band,
- 4e3, # width_of_transition_band,
- gr.firdes.WIN_HANN)
-
- # input: float; output: float
- audio_filter = gr.fir_filter_fff (audio_decimation, audio_coeffs)
-
-
-
-
- print len(channel_coeffs)
- print len(audio_coeffs)
-
- # now wire it all together
- self.connect (src, ddc)
- self.connect (ddc, magblock)
- self.connect (magblock, volumecontrol)
- self.connect (volumecontrol,deemph)
- self.connect (deemph,audio_filter)
- self.connect (audio_filter, (audio_sink, 0))
-
- if 1:
- pre_demod = fftsink.fft_sink_c (self, panel, title="Pre-Demodulation", fft_size=128, sample_rate=if_rate)
- self.connect (src, pre_demod)
- vbox.Add (pre_demod.win, 1, wx.EXPAND)
-
- if 0:
- post_demod = fftsink.fft_sink_c (self, panel, title="Post Demodulation", fft_size=256, sample_rate=demod_rate)
- self.connect (ddc, post_demod)
- vbox.Add (post_demod.win, 1, wx.EXPAND)
-
- if 0:
- post_filt = fftsink.fft_sink_f (self, panel, title="Post Filter", fft_size=512, sample_rate=audio_rate)
- self.connect (magblock,post_filt)
- vbox.Add (post_filt.win, 1, wx.EXPAND)
-
-def parseargs (args):
- nargs = len (args)
- if nargs == 1:
- freq1 = float (args[0]) * 1e3
- else:
- sys.stderr.write ('usage: am_rcv freq1\n')
- sys.exit (1)
-
- return freq1
-
-if __name__ == '__main__':
- app = stdgui.stdapp (am_rx_graph, "AM RX")
- app.MainLoop ()
-
+++ /dev/null
-#!/usr/bin/env python
-#
-# Copyright 2005 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-#
-# All Your Frequencies are Belong to Us!
-#
-# Transmit NBFM message on 25 channels simultaneously!
-#
-
-from gnuradio import gr, gru, eng_notation
-from gnuradio import usrp
-from gnuradio import audio
-from gnuradio import blks
-from gnuradio import optfir
-from gnuradio.eng_option import eng_option
-from optparse import OptionParser
-import math
-import sys
-import random
-
-from gnuradio.wxgui import stdgui, fftsink
-import wx
-
-
-def make_random_complex_tuple(L):
- result = []
- for x in range(L):
- result.append(complex(random.gauss(0, 1),random.gauss(0, 1)))
-
- return tuple(result)
-
-def random_noise_c():
- src = gr.vector_source_c(make_random_complex_tuple(32*1024), True)
- return src
-
-
-def plot_taps(taps, sample_rate=2):
- return gru.gnuplot_freqz (gru.freqz (taps, 1), sample_rate)
-
-
-class ayfabtu_graph (stdgui.gui_flow_graph):
- def __init__(self, frame, panel, vbox, argv):
- stdgui.gui_flow_graph.__init__ (self, frame, panel, vbox, argv)
-
- parser = OptionParser (option_class=eng_option)
- parser.add_option ("-c", "--duc-freq", type="eng_float", default=29.325e6,
- help="set Tx ddc frequency to FREQ", metavar="FREQ")
- (options, args) = parser.parse_args ()
-
- nchan = 25
- IF_GAIN = 80000
- AUDIO_GAIN = 100
-
- self.dac_rate = 128e6
- self.usrp_interp = 256
- self.usrp_rate = self.dac_rate / self.usrp_interp # 500 kS/s
- self.audio_rate = 32000 # 32 kS/s
-
- self.audio_src = gr.file_source(gr.sizeof_float, "ayfabtu.dat", True)
-
- ahp_taps = gr.firdes.high_pass(1, # gain
- 32e3, # Fs
- 300, # cutoff
- 600, # trans width
- gr.firdes.WIN_HANN)
- self.audio_hp = gr.fir_filter_fff(1, ahp_taps)
-
- self.audio_gain = gr.multiply_const_ff(AUDIO_GAIN)
-
- null_src = gr.null_source(gr.sizeof_gr_complex)
- #noise_src = gr.noise_source_c(gr.GR_UNIFORM, 1, 0)
- noise_src = random_noise_c()
-
- if 0:
- artaps = optfir.low_pass(1, # gain
- 2, # Fs
- .75/32, # freq1
- 1.0/32, # freq2
- 1, # pb ripple in dB
- 50, # stopband atten in dB
- 2) # + extra taps
- else:
- artaps = gr.firdes.low_pass(1, # gain
- 32e3*15,# Fs
- 2.7e3, # cutoff
- .3e3, # trans width
- gr.firdes.WIN_HANN)
- print "len(artaps) =", len(artaps)
- self.audio_resampler = blks.rational_resampler_fff(self, 15, 32, artaps)
-
- self.fm_mod = blks.nbfm_tx(self, 15000, 15000, max_dev=4.5e3)
-
-
- fbtaps = gr.firdes.low_pass(1, # gain
- 25*15e3, # rate
- 13e3, # cutoff
- 2e3, # trans width
- gr.firdes.WIN_HANN)
- print "len(fbtabs) =", len(fbtaps)
- #self.plot = plot_taps(fbtaps, 25*15e3)
- self.filter_bank = blks.synthesis_filterbank(self, nchan, fbtaps)
-
- self.if_gain = gr.multiply_const_cc(IF_GAIN)
-
- if 0:
- ifrtaps = optfir.low_pass(1,
- 2, # Fs
- .75/3, # freq1
- 1.0/3, # freq2
- 1, # pb ripple in dB
- 50, # stopband atten in dB
- 2) # + extra taps
- else:
- ifrtaps = gr.firdes.low_pass(1,
- 2, # Fs
- .75/3, # freq1
- .25/3, # trans width
- gr.firdes.WIN_HANN)
-
-
- print "len(ifrtaps) =", len(ifrtaps)
- self.if_resampler = blks.rational_resampler_ccf(self, 4, 3, ifrtaps)
-
-
- self.u = usrp.sink_c(0, 256)
- self.u.set_tx_freq(0, options.duc_freq)
- self.u.set_pga(0, self.u.pga_max())
-
- # wire it all together
-
- self.connect(self.audio_src, self.audio_hp, self.audio_gain,
- self.audio_resampler, self.fm_mod)
-
- null_sink = gr.null_sink(gr.sizeof_gr_complex)
-
- for i in range(nchan):
- if True or i == 0:
- self.connect(self.fm_mod, (self.filter_bank, i))
- else:
- self.connect(null_src, (self.filter_bank, i))
-
- self.connect(self.filter_bank, self.if_gain, self.if_resampler, self.u)
-
-
-def main ():
- app = stdgui.stdapp (ayfabtu_graph, "All Your Frequency Are Belong to Us")
- app.MainLoop ()
-
-if __name__ == '__main__':
- main ()
+++ /dev/null
-#!/usr/bin/env python
-#
-# Copyright 2004,2005 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-"""
-Benchmark the USB/USRP throughput. Finds the maximum full-duplex speed
-the USRP/USB combination can sustain without errors.
-
-This program does not currently give reliable results. Sorry about that...
-"""
-
-from gnuradio import gr
-from gnuradio import usrp
-from gnuradio import eng_notation
-
-import sys
-
-def run_test (usb_throughput, verbose):
- # usb_throughput is in bytes/sec.
- #
- # Returns True or False
-
- nsec = 1
- stream_length = int (usb_throughput/2 * nsec) # length of stream to examine
-
- adc_freq = 64e6
- dac_freq = 128e6
- sizeof_sample = 2 * gr.sizeof_short
-
- usb_throughput_in_samples = usb_throughput / sizeof_sample
-
- # allocate usb throughput 50/50 between Tx and Rx
-
- tx_interp = int (dac_freq) / int (usb_throughput_in_samples / 2)
- rx_decim = int (adc_freq) / int (usb_throughput_in_samples / 2)
-
- # print "tx_interp =", tx_interp, "rx_decim =", rx_decim
- assert (tx_interp == 2 * rx_decim)
-
- fg = gr.flow_graph ()
-
- # Build the Tx pipeline
- data_src = gr.lfsr_32k_source_s ()
- src_head = gr.head (gr.sizeof_short, int (stream_length * 2))
- usrp_tx = usrp.sink_s (0, tx_interp)
- fg.connect (data_src, src_head, usrp_tx)
-
- # and the Rx pipeline
- usrp_rx = usrp.source_s (0, rx_decim, 1, 0x32103210, usrp.FPGA_MODE_LOOPBACK)
- head = gr.head (gr.sizeof_short, stream_length)
- check = gr.check_lfsr_32k_s ()
- fg.connect (usrp_rx, head, check)
-
- fg.run ()
-
- ntotal = check.ntotal ()
- nright = check.nright ()
- runlength = check.runlength ()
-
- if verbose:
- print "usb_throughput =", eng_notation.num_to_str (usb_throughput)
- print "ntotal =", ntotal
- print "nright =", nright
- print "runlength =", runlength
- print "delta =", ntotal - runlength
-
- return runlength >= stream_length - 80000
-
-def main ():
- verbose = True
- best_rate = 0
- usb_rate = [ 2e6, 4e6, 8e6, 16e6, 32e6 ]
- #usb_rate = [ 32e6, 32e6, 32e6, 32e6, 32e6 ]
- # usb_rate.reverse ()
- for rate in usb_rate:
- sys.stdout.write ("Testing %sB/sec... " % (eng_notation.num_to_str (rate)))
- sys.stdout.flush ()
- ok = run_test (rate, verbose)
- if ok:
- best_rate = max (best_rate, rate)
- sys.stdout.write ("OK\n")
- else:
- sys.stdout.write ("FAILED\n")
-
- print "Max USB/USRP throughput = %sB/sec" % (eng_notation.num_to_str (best_rate),)
-
-if __name__ == '__main__':
- main ()
+++ /dev/null
-#!/usr/bin/env python
-#
-# Copyright 2004 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-from gnuradio import gr, gru
-from gnuradio import usrp
-from gnuradio import eng_notation
-from gnuradio.eng_option import eng_option
-from gnuradio.wxgui import stdgui, fftsink, scopesink, slider
-from optparse import OptionParser
-import wx
-
-class app_flow_graph (stdgui.gui_flow_graph):
- def __init__(self, frame, panel, vbox, argv):
- stdgui.gui_flow_graph.__init__ (self, frame, panel, vbox, argv)
-
- self.frame = frame
- self.panel = panel
-
- parser = OptionParser (option_class=eng_option)
- parser.add_option ("-d", "--decim", type="int", default=8,
- help="set fgpa decimation rate to DECIM")
- parser.add_option ("-c", "--ddc-freq", type="eng_float", default=0,
- help="set Digital downconverter frequency to FREQ", metavar="FREQ")
- parser.add_option ("-f", "--freq", type="eng_float", default=950e6,
- help="set RF downconverter frequency to FREQ", metavar="FREQ")
- parser.add_option ("-m", "--mux", type="intx", default=0x32103210,
- help="set fpga FR_RX_MUX register to MUX")
- parser.add_option ("-g", "--gain", type="eng_float", default=0,
- help="set Rx PGA gain in dB (default 0 dB)")
- (options, args) = parser.parse_args ()
-
- self.u = usrp.source_c (0, options.decim, 1, gru.hexint(options.mux), 0)
-
- self.u.set_verbose (0)
-
- input_rate = self.u.adc_freq () / self.u.decim_rate ()
-
- block = fftsink.fft_sink_c (self, panel, fft_size=1024, sample_rate=input_rate)
- self.connect (self.u, block)
- vbox.Add (block.win, 10, wx.EXPAND)
-
- if 0:
- c2f_1 = gr.complex_to_float ()
- scope = scopesink.scope_sink_f (self, panel, "Rx Data", input_rate)
- vbox.Add (scope.win, 6, wx.EXPAND)
-
- self.connect (self.u,c2f_1)
- self.connect ((c2f_1, 0), (scope, 0))
- self.connect ((c2f_1, 1), (scope, 1))
-
- if 0:
- rms_complex = gr.rms_cf(.0001)
- rms_i = gr.rms_ff(.0001)
- rms_q = gr.rms_ff(.0001)
-
- self.connect(self.u,rms_complex)
- self.connect((c2f_1,0),rms_i)
- self.connect((c2f_1,1),rms_q)
-
- ns1 = gr.null_sink(4)
- ns2 = gr.null_sink(4)
- ns3 = gr.null_sink(4)
-
- self.connect(rms_complex,ns1)
- self.connect(rms_i,ns2)
- self.connect(rms_q,ns3)
-
- # sliders
-
- #vbox.Add(slider.slider(panel, 0, 104, self.set_gain), 1, wx.ALIGN_CENTER)
-
- #vbox.Add(slider.slider(panel, 0, 4095, self.set_gain_gc1), 1, wx.ALIGN_CENTER)
- #vbox.Add(slider.slider(panel, 0, 31, self.set_gain_gc2), 1, wx.ALIGN_CENTER)
- #vbox.Add(slider.slider(panel, 0, 1, self.set_gain_dl), 1, wx.ALIGN_CENTER)
- #vbox.Add(slider.slider(panel, 0, 200, self.set_gain_i), 1, wx.ALIGN_CENTER)
- #vbox.Add(slider.slider(panel, 0, 200, self.set_gain_q), 1, wx.ALIGN_CENTER)
-
- self.offset = 0
- #vbox.Add(slider.slider(panel, -200, 200, self.set_offset_i), 1, wx.ALIGN_CENTER)
- #vbox.Add(slider.slider(panel, -200, 200, self.set_offset_q), 1, wx.ALIGN_CENTER)
-
- vbox.Add(slider.slider(panel, 380, 480, self.set_rf_freq), 1, wx.EXPAND|wx.ALIGN_CENTER)
- vbox.Add(slider.slider(panel, -32000, +32000, self.set_if_freq), 1, wx.EXPAND|wx.ALIGN_CENTER)
- vbox.Add(slider.slider(panel, 0, 4095, self.set_gain), 1, wx.EXPAND|wx.ALIGN_CENTER)
-
- # build small control area at bottom
- hbox = wx.BoxSizer (wx.HORIZONTAL)
- hbox.Add ((1, 1), 1, wx.EXPAND)
- hbox.Add (wx.StaticText (panel, -1, "Set ddc freq: "), 0, wx.ALIGN_CENTER)
- self.tc_freq = wx.TextCtrl (panel, -1, "", style=wx.TE_PROCESS_ENTER)
- hbox.Add (self.tc_freq, 0, wx.ALIGN_CENTER)
- wx.EVT_TEXT_ENTER (self.tc_freq, self.tc_freq.GetId(), self.handle_text_enter)
- hbox.Add ((1, 1), 1, wx.EXPAND)
- # add it to the main vbox
- vbox.Add (hbox, 0, wx.EXPAND)
-
- self.update_status_bar ()
-
- def set_rf_freq (self,freq):
- (success,actual_freq) = self.set_freq(1e6*freq)
- if not success:
- print "Failed on ",freq
- def set_if_freq (self,freq):
- self.u.set_rx_freq(0,freq*1e3)
-
- def set_gain (self,gain):
- self.rfrx.set_gain(gain)
-
- def set_gain_i (self,gain):
- self.u.set_pga(0,gain/10.0)
- def set_gain_q (self,gain):
- self.u.set_pga(1,gain/10.0)
-
- def set_offset_i(self,offset):
- self.offset = (self.offset & 0x0000ffff) | ((offset&0xffff)<<16)
- self.u._write_fpga_reg (3,self.offset)
-
- def set_offset_q(self,offset):
- self.offset = (self.offset & 0xffff0000) | (offset&0xffff)
- self.u._write_fpga_reg (3,self.offset)
-
- def handle_text_enter (self, event):
- str = event.GetString ()
- self.tc_freq.Clear ()
- self.u.set_rx_freq (0, eng_notation.str_to_num (str))
- self.update_status_bar ()
-
- def update_status_bar (self):
- ddc_freq = self.u.rx_freq (0)
- decim_rate = self.u.decim_rate ()
- sample_rate = self.u.adc_freq () / decim_rate
- msg = "decim: %d %sS/s DDC: %s" % (
- decim_rate,
- eng_notation.num_to_str (sample_rate),
- eng_notation.num_to_str (ddc_freq))
-
- self.frame.GetStatusBar().SetStatusText (msg, 1)
-
- def set_gain(self,gain):
- assert gain>=0 and gain<4096
- self.u.write_aux_dac(0,0,int(gain))
-
-def main ():
- app = stdgui.stdapp (app_flow_graph, "USRP FFT")
- app.MainLoop ()
-
-if __name__ == '__main__':
- main ()
-
-
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr, gru
-from gnuradio import usrp
-from gnuradio.eng_option import eng_option
-from optparse import OptionParser
-from gnuradio.wxgui import stdgui, slider
-import wx
-
-class flex_siggen (stdgui.gui_flow_graph):
- __slots__ = ['interp', 'waveform_type', 'waveform_ampl',
- 'waveform_freq', 'waveform_offset', 'fg', 'usrp',
- 'siggen', 'noisegen', 'src', 'file_sink' ]
-
- def __init__ (self,frame,panel,vbox,argv):
- stdgui.gui_flow_graph.__init__ (self, frame, panel, vbox, argv)
-
- self.frame = frame
- self.panel = panel
-
- parser = OptionParser (option_class=eng_option)
- parser.add_option ("-a", "--amplitude", type="int", default=32000,
- help="amplitude")
- parser.add_option ("-i", "--interp", type="int", default=64,
- help="set fpga interpolation rate to INTERP")
- parser.add_option ("-n", "--nchannels", type="int", default=1,
- help="set number of output channels to NCHANNELS")
- (options, args) = parser.parse_args ()
-
- self.waveform_type = gr.GR_CONST_WAVE
- self.waveform_ampl = options.amplitude
- self.waveform_freq = 100.12345e3
- self.waveform_offset = 0
-
- self.interp = options.interp
- self._instantiate_blocks ()
- self.usrp.set_nchannels (options.nchannels)
-
- self.dboard=self.usrp.db[0][0]
-
- self.set_waveform_type (self.waveform_type)
- vbox.Add(slider.slider(panel, 390, 510, self.set_rf_freq), 1, wx.EXPAND|wx.ALIGN_CENTER)
- vbox.Add(slider.slider(panel, -45000, +45000, self.set_if_freq), 1, wx.EXPAND|wx.ALIGN_CENTER)
- #vbox.Add(slider.slider(panel, 0, 4095, self.set_gain), 1, wx.EXPAND|wx.ALIGN_CENTER)
-
- def usb_freq (self):
- return self.usrp.dac_freq() / self.interp
-
- def usb_throughput (self):
- return self.usb_freq () * 4
-
- def set_waveform_type (self, type):
- '''
- valid waveform types are: gr.GR_SIN_WAVE, gr.GR_CONST_WAVE,
- gr.GR_UNIFORM and gr.GR_GAUSSIAN
- '''
- self._configure_graph (type)
- self.waveform_type = type
-
- def set_waveform_ampl (self, ampl):
- self.waveform_ampl = ampl
- self.siggen.set_amplitude (ampl)
- self.noisegen.set_amplitude (ampl)
-
- def set_waveform_freq (self, freq):
- self.waveform_freq = freq
- self.siggen.set_frequency (freq)
-
- def set_if_freq (self, freq):
- self.if_freq = freq
- self.usrp.set_tx_freq (0,freq*1e3)
-
- def set_rf_freq (self, freq):
- self.rf_freq = freq
- (success,actual_freq) = self.dboard.set_freq (freq*1e6)
- if not success:
- print "Failed on ", freq
-
- def set_waveform_offset (self, offset):
- self.waveform_offset = offset
- self.siggen.set_offset (offset)
-
- def set_interpolator (self, interp):
- self.interp = interp
- self.siggen.set_sampling_freq (self.usb_freq ())
- self.usrp.set_interp_rate (interp)
-
- def set_duc_freq (self, freq):
- self.usrp.set_tx_freq (0, freq)
-
- def _instantiate_blocks (self):
- self.src = None
- self.usrp = usrp.sink_c (0, self.interp)
-
- self.siggen = gr.sig_source_c (self.usb_freq (),
- gr.GR_SIN_WAVE,
- self.waveform_freq,
- self.waveform_ampl,
- self.waveform_offset)
-
- self.noisegen = gr.noise_source_c (gr.GR_UNIFORM,
- self.waveform_ampl)
- print "done"
-
- def _configure_graph (self, type):
- was_running = self.is_running ()
- if was_running:
- self.stop ()
- self.disconnect_all ()
- if type == gr.GR_SIN_WAVE or type == gr.GR_CONST_WAVE:
- self.connect (self.siggen, self.usrp)
- self.siggen.set_waveform (type)
- self.src = self.siggen
- elif type == gr.GR_UNIFORM or type == gr.GR_GAUSSIAN:
- self.connect (self.noisegen, self.usrp)
- self.noisegen.set_type (type)
- self.src = self.noisegen
- else:
- raise ValueError, type
- if was_running:
- self.start ()
-
-
-if __name__ == '__main__':
- parser = OptionParser (option_class=eng_option)
- parser.add_option ("--sine", dest="type", action="store_const", const=gr.GR_SIN_WAVE,
- help="generate a complex sinusoid [default]", default=gr.GR_SIN_WAVE)
- parser.add_option ("--const", dest="type", action="store_const", const=gr.GR_CONST_WAVE,
- help="generate a constant output")
- parser.add_option ("--gaussian", dest="type", action="store_const", const=gr.GR_GAUSSIAN,
- help="generate Gaussian random output")
- parser.add_option ("--uniform", dest="type", action="store_const", const=gr.GR_UNIFORM,
- help="generate Uniform random output")
- parser.add_option ("-f", "--freq", type="eng_float", default=100e3,
- help="set waveform frequency to FREQ")
- parser.add_option ("-r", "--rf-freq", type="eng_float", default=910e6,
- help="set waveform frequency to FREQ")
- parser.add_option ("-a", "--amplitude", type="eng_float", default=16e3,
- help="set waveform amplitude to AMPLITUDE", metavar="AMPL")
- parser.add_option ("-o", "--offset", type="eng_float", default=0,
- help="set waveform offset to OFFSET")
- parser.add_option ("-c", "--duc-freq", type="eng_float", default=0,
- help="set Tx DUC frequency to FREQ", metavar="FREQ")
- parser.add_option ("-m", "--mux", type="intx", default=0x98,
- help="set output mux register")
-
- app = stdgui.stdapp (flex_siggen, "USRP FlexRF Siggen")
- app.MainLoop ()
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr, eng_notation
+from gnuradio import audio
+from gnuradio import usrp
+from gnuradio.eng_option import eng_option
+from optparse import OptionParser
+import sys
+import math
+
+from gnuradio.wxgui import stdgui, fftsink
+import wx
+
+class am_rx_graph (stdgui.gui_flow_graph):
+ def __init__(self,frame,panel,vbox,argv):
+ stdgui.gui_flow_graph.__init__ (self,frame,panel,vbox,argv)
+
+ station = parseargs(argv[1:])
+ offset_freq = 30e3
+ IF_freq = offset_freq - station
+
+ adc_rate = 64e6
+ usrp_decim = 250
+ if_rate = adc_rate / usrp_decim # 256 kHz
+ if_decim = 4
+ demod_rate = if_rate / if_decim # 64 kHz
+ audio_decimation = 2
+ audio_rate = demod_rate / audio_decimation # 16 kHz
+
+ # usrp is data source
+ src = usrp.source_c (0, usrp_decim)
+ src.set_rx_freq (0, IF_freq)
+ actual_IF_freq =src.rx_freq(0)
+ actual_offset = actual_IF_freq + station
+
+ #print actual_IF_freq
+ #print actual_offset
+
+ src.set_pga(0,20)
+ # sound card as final sink
+ audio_sink = audio.sink (int (audio_rate))
+
+ channel_coeffs = \
+ gr.firdes.low_pass (1.0, # gain
+ if_rate, # sampling rate
+ 9e3, # low pass cutoff freq
+ 10e3, # width of trans. band
+ gr.firdes.WIN_HANN)
+
+ ddc = gr.freq_xlating_fir_filter_ccf (if_decim,channel_coeffs,-actual_offset,if_rate)
+
+ magblock = gr.complex_to_mag()
+ volumecontrol = gr.multiply_const_ff(.003)
+
+ # Deemphasis. Is this necessary on AM?
+ TAU = 75e-6 # 75us in US, 50us in EUR
+ fftaps = [ 1 - math.exp(-1/TAU/if_rate), 0]
+ fbtaps= [ 0 , math.exp(-1/TAU/if_rate) ]
+
+ deemph = gr.iir_filter_ffd(fftaps,fbtaps)
+
+ # compute FIR filter taps for audio filter
+ width_of_transition_band = audio_rate / 8
+ audio_coeffs = gr.firdes.low_pass (1.0, # gain
+ if_rate, # sampling rate
+ 9e3, #audio_rate/2 - width_of_transition_band,
+ 4e3, # width_of_transition_band,
+ gr.firdes.WIN_HANN)
+
+ # input: float; output: float
+ audio_filter = gr.fir_filter_fff (audio_decimation, audio_coeffs)
+
+
+
+
+ print len(channel_coeffs)
+ print len(audio_coeffs)
+
+ # now wire it all together
+ self.connect (src, ddc)
+ self.connect (ddc, magblock)
+ self.connect (magblock, volumecontrol)
+ self.connect (volumecontrol,deemph)
+ self.connect (deemph,audio_filter)
+ self.connect (audio_filter, (audio_sink, 0))
+
+ if 1:
+ pre_demod = fftsink.fft_sink_c (self, panel, title="Pre-Demodulation", fft_size=128, sample_rate=if_rate)
+ self.connect (src, pre_demod)
+ vbox.Add (pre_demod.win, 1, wx.EXPAND)
+
+ if 0:
+ post_demod = fftsink.fft_sink_c (self, panel, title="Post Demodulation", fft_size=256, sample_rate=demod_rate)
+ self.connect (ddc, post_demod)
+ vbox.Add (post_demod.win, 1, wx.EXPAND)
+
+ if 0:
+ post_filt = fftsink.fft_sink_f (self, panel, title="Post Filter", fft_size=512, sample_rate=audio_rate)
+ self.connect (magblock,post_filt)
+ vbox.Add (post_filt.win, 1, wx.EXPAND)
+
+def parseargs (args):
+ nargs = len (args)
+ if nargs == 1:
+ freq1 = float (args[0]) * 1e3
+ else:
+ sys.stderr.write ('usage: am_rcv freq1\n')
+ sys.exit (1)
+
+ return freq1
+
+if __name__ == '__main__':
+ app = stdgui.stdapp (am_rx_graph, "AM RX")
+ app.MainLoop ()
+
--- /dev/null
+#!/usr/bin/env python
+#
+# Copyright 2005 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+#
+# All Your Frequencies are Belong to Us!
+#
+# Transmit NBFM message on 25 channels simultaneously!
+#
+
+from gnuradio import gr, gru, eng_notation
+from gnuradio import usrp
+from gnuradio import audio
+from gnuradio import blks
+from gnuradio import optfir
+from gnuradio.eng_option import eng_option
+from optparse import OptionParser
+import math
+import sys
+import random
+
+from gnuradio.wxgui import stdgui, fftsink
+import wx
+
+
+def make_random_complex_tuple(L):
+ result = []
+ for x in range(L):
+ result.append(complex(random.gauss(0, 1),random.gauss(0, 1)))
+
+ return tuple(result)
+
+def random_noise_c():
+ src = gr.vector_source_c(make_random_complex_tuple(32*1024), True)
+ return src
+
+
+def plot_taps(taps, sample_rate=2):
+ return gru.gnuplot_freqz (gru.freqz (taps, 1), sample_rate)
+
+
+class ayfabtu_graph (stdgui.gui_flow_graph):
+ def __init__(self, frame, panel, vbox, argv):
+ stdgui.gui_flow_graph.__init__ (self, frame, panel, vbox, argv)
+
+ parser = OptionParser (option_class=eng_option)
+ parser.add_option ("-c", "--duc-freq", type="eng_float", default=29.325e6,
+ help="set Tx ddc frequency to FREQ", metavar="FREQ")
+ (options, args) = parser.parse_args ()
+
+ nchan = 25
+ IF_GAIN = 80000
+ AUDIO_GAIN = 100
+
+ self.dac_rate = 128e6
+ self.usrp_interp = 256
+ self.usrp_rate = self.dac_rate / self.usrp_interp # 500 kS/s
+ self.audio_rate = 32000 # 32 kS/s
+
+ self.audio_src = gr.file_source(gr.sizeof_float, "ayfabtu.dat", True)
+
+ ahp_taps = gr.firdes.high_pass(1, # gain
+ 32e3, # Fs
+ 300, # cutoff
+ 600, # trans width
+ gr.firdes.WIN_HANN)
+ self.audio_hp = gr.fir_filter_fff(1, ahp_taps)
+
+ self.audio_gain = gr.multiply_const_ff(AUDIO_GAIN)
+
+ null_src = gr.null_source(gr.sizeof_gr_complex)
+ #noise_src = gr.noise_source_c(gr.GR_UNIFORM, 1, 0)
+ noise_src = random_noise_c()
+
+ if 0:
+ artaps = optfir.low_pass(1, # gain
+ 2, # Fs
+ .75/32, # freq1
+ 1.0/32, # freq2
+ 1, # pb ripple in dB
+ 50, # stopband atten in dB
+ 2) # + extra taps
+ else:
+ artaps = gr.firdes.low_pass(1, # gain
+ 32e3*15,# Fs
+ 2.7e3, # cutoff
+ .3e3, # trans width
+ gr.firdes.WIN_HANN)
+ print "len(artaps) =", len(artaps)
+ self.audio_resampler = blks.rational_resampler_fff(self, 15, 32, artaps)
+
+ self.fm_mod = blks.nbfm_tx(self, 15000, 15000, max_dev=4.5e3)
+
+
+ fbtaps = gr.firdes.low_pass(1, # gain
+ 25*15e3, # rate
+ 13e3, # cutoff
+ 2e3, # trans width
+ gr.firdes.WIN_HANN)
+ print "len(fbtabs) =", len(fbtaps)
+ #self.plot = plot_taps(fbtaps, 25*15e3)
+ self.filter_bank = blks.synthesis_filterbank(self, nchan, fbtaps)
+
+ self.if_gain = gr.multiply_const_cc(IF_GAIN)
+
+ if 0:
+ ifrtaps = optfir.low_pass(1,
+ 2, # Fs
+ .75/3, # freq1
+ 1.0/3, # freq2
+ 1, # pb ripple in dB
+ 50, # stopband atten in dB
+ 2) # + extra taps
+ else:
+ ifrtaps = gr.firdes.low_pass(1,
+ 2, # Fs
+ .75/3, # freq1
+ .25/3, # trans width
+ gr.firdes.WIN_HANN)
+
+
+ print "len(ifrtaps) =", len(ifrtaps)
+ self.if_resampler = blks.rational_resampler_ccf(self, 4, 3, ifrtaps)
+
+
+ self.u = usrp.sink_c(0, 256)
+ self.u.set_tx_freq(0, options.duc_freq)
+ self.u.set_pga(0, self.u.pga_max())
+
+ # wire it all together
+
+ self.connect(self.audio_src, self.audio_hp, self.audio_gain,
+ self.audio_resampler, self.fm_mod)
+
+ null_sink = gr.null_sink(gr.sizeof_gr_complex)
+
+ for i in range(nchan):
+ if True or i == 0:
+ self.connect(self.fm_mod, (self.filter_bank, i))
+ else:
+ self.connect(null_src, (self.filter_bank, i))
+
+ self.connect(self.filter_bank, self.if_gain, self.if_resampler, self.u)
+
+
+def main ():
+ app = stdgui.stdapp (ayfabtu_graph, "All Your Frequency Are Belong to Us")
+ app.MainLoop ()
+
+if __name__ == '__main__':
+ main ()
--- /dev/null
+#!/usr/bin/env python
+#
+# Copyright 2004 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+from gnuradio import gr, gru
+from gnuradio import usrp
+from gnuradio import eng_notation
+from gnuradio.eng_option import eng_option
+from gnuradio.wxgui import stdgui, fftsink, scopesink, slider
+from optparse import OptionParser
+import wx
+
+class app_flow_graph (stdgui.gui_flow_graph):
+ def __init__(self, frame, panel, vbox, argv):
+ stdgui.gui_flow_graph.__init__ (self, frame, panel, vbox, argv)
+
+ self.frame = frame
+ self.panel = panel
+
+ parser = OptionParser (option_class=eng_option)
+ parser.add_option ("-d", "--decim", type="int", default=8,
+ help="set fgpa decimation rate to DECIM")
+ parser.add_option ("-c", "--ddc-freq", type="eng_float", default=0,
+ help="set Digital downconverter frequency to FREQ", metavar="FREQ")
+ parser.add_option ("-f", "--freq", type="eng_float", default=950e6,
+ help="set RF downconverter frequency to FREQ", metavar="FREQ")
+ parser.add_option ("-m", "--mux", type="intx", default=0x32103210,
+ help="set fpga FR_RX_MUX register to MUX")
+ parser.add_option ("-g", "--gain", type="eng_float", default=0,
+ help="set Rx PGA gain in dB (default 0 dB)")
+ (options, args) = parser.parse_args ()
+
+ self.u = usrp.source_c (0, options.decim, 1, gru.hexint(options.mux), 0)
+
+ self.u.set_verbose (0)
+
+ input_rate = self.u.adc_freq () / self.u.decim_rate ()
+
+ block = fftsink.fft_sink_c (self, panel, fft_size=1024, sample_rate=input_rate)
+ self.connect (self.u, block)
+ vbox.Add (block.win, 10, wx.EXPAND)
+
+ if 0:
+ c2f_1 = gr.complex_to_float ()
+ scope = scopesink.scope_sink_f (self, panel, "Rx Data", input_rate)
+ vbox.Add (scope.win, 6, wx.EXPAND)
+
+ self.connect (self.u,c2f_1)
+ self.connect ((c2f_1, 0), (scope, 0))
+ self.connect ((c2f_1, 1), (scope, 1))
+
+ if 0:
+ rms_complex = gr.rms_cf(.0001)
+ rms_i = gr.rms_ff(.0001)
+ rms_q = gr.rms_ff(.0001)
+
+ self.connect(self.u,rms_complex)
+ self.connect((c2f_1,0),rms_i)
+ self.connect((c2f_1,1),rms_q)
+
+ ns1 = gr.null_sink(4)
+ ns2 = gr.null_sink(4)
+ ns3 = gr.null_sink(4)
+
+ self.connect(rms_complex,ns1)
+ self.connect(rms_i,ns2)
+ self.connect(rms_q,ns3)
+
+ # sliders
+
+ #vbox.Add(slider.slider(panel, 0, 104, self.set_gain), 1, wx.ALIGN_CENTER)
+
+ #vbox.Add(slider.slider(panel, 0, 4095, self.set_gain_gc1), 1, wx.ALIGN_CENTER)
+ #vbox.Add(slider.slider(panel, 0, 31, self.set_gain_gc2), 1, wx.ALIGN_CENTER)
+ #vbox.Add(slider.slider(panel, 0, 1, self.set_gain_dl), 1, wx.ALIGN_CENTER)
+ #vbox.Add(slider.slider(panel, 0, 200, self.set_gain_i), 1, wx.ALIGN_CENTER)
+ #vbox.Add(slider.slider(panel, 0, 200, self.set_gain_q), 1, wx.ALIGN_CENTER)
+
+ self.offset = 0
+ #vbox.Add(slider.slider(panel, -200, 200, self.set_offset_i), 1, wx.ALIGN_CENTER)
+ #vbox.Add(slider.slider(panel, -200, 200, self.set_offset_q), 1, wx.ALIGN_CENTER)
+
+ vbox.Add(slider.slider(panel, 380, 480, self.set_rf_freq), 1, wx.EXPAND|wx.ALIGN_CENTER)
+ vbox.Add(slider.slider(panel, -32000, +32000, self.set_if_freq), 1, wx.EXPAND|wx.ALIGN_CENTER)
+ vbox.Add(slider.slider(panel, 0, 4095, self.set_gain), 1, wx.EXPAND|wx.ALIGN_CENTER)
+
+ # build small control area at bottom
+ hbox = wx.BoxSizer (wx.HORIZONTAL)
+ hbox.Add ((1, 1), 1, wx.EXPAND)
+ hbox.Add (wx.StaticText (panel, -1, "Set ddc freq: "), 0, wx.ALIGN_CENTER)
+ self.tc_freq = wx.TextCtrl (panel, -1, "", style=wx.TE_PROCESS_ENTER)
+ hbox.Add (self.tc_freq, 0, wx.ALIGN_CENTER)
+ wx.EVT_TEXT_ENTER (self.tc_freq, self.tc_freq.GetId(), self.handle_text_enter)
+ hbox.Add ((1, 1), 1, wx.EXPAND)
+ # add it to the main vbox
+ vbox.Add (hbox, 0, wx.EXPAND)
+
+ self.update_status_bar ()
+
+ def set_rf_freq (self,freq):
+ (success,actual_freq) = self.set_freq(1e6*freq)
+ if not success:
+ print "Failed on ",freq
+ def set_if_freq (self,freq):
+ self.u.set_rx_freq(0,freq*1e3)
+
+ def set_gain (self,gain):
+ self.rfrx.set_gain(gain)
+
+ def set_gain_i (self,gain):
+ self.u.set_pga(0,gain/10.0)
+ def set_gain_q (self,gain):
+ self.u.set_pga(1,gain/10.0)
+
+ def set_offset_i(self,offset):
+ self.offset = (self.offset & 0x0000ffff) | ((offset&0xffff)<<16)
+ self.u._write_fpga_reg (3,self.offset)
+
+ def set_offset_q(self,offset):
+ self.offset = (self.offset & 0xffff0000) | (offset&0xffff)
+ self.u._write_fpga_reg (3,self.offset)
+
+ def handle_text_enter (self, event):
+ str = event.GetString ()
+ self.tc_freq.Clear ()
+ self.u.set_rx_freq (0, eng_notation.str_to_num (str))
+ self.update_status_bar ()
+
+ def update_status_bar (self):
+ ddc_freq = self.u.rx_freq (0)
+ decim_rate = self.u.decim_rate ()
+ sample_rate = self.u.adc_freq () / decim_rate
+ msg = "decim: %d %sS/s DDC: %s" % (
+ decim_rate,
+ eng_notation.num_to_str (sample_rate),
+ eng_notation.num_to_str (ddc_freq))
+
+ self.frame.GetStatusBar().SetStatusText (msg, 1)
+
+ def set_gain(self,gain):
+ assert gain>=0 and gain<4096
+ self.u.write_aux_dac(0,0,int(gain))
+
+def main ():
+ app = stdgui.stdapp (app_flow_graph, "USRP FFT")
+ app.MainLoop ()
+
+if __name__ == '__main__':
+ main ()
+
+
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr, gru
+from gnuradio import usrp
+from gnuradio.eng_option import eng_option
+from optparse import OptionParser
+from gnuradio.wxgui import stdgui, slider
+import wx
+
+class flex_siggen (stdgui.gui_flow_graph):
+ __slots__ = ['interp', 'waveform_type', 'waveform_ampl',
+ 'waveform_freq', 'waveform_offset', 'fg', 'usrp',
+ 'siggen', 'noisegen', 'src', 'file_sink' ]
+
+ def __init__ (self,frame,panel,vbox,argv):
+ stdgui.gui_flow_graph.__init__ (self, frame, panel, vbox, argv)
+
+ self.frame = frame
+ self.panel = panel
+
+ parser = OptionParser (option_class=eng_option)
+ parser.add_option ("-a", "--amplitude", type="int", default=32000,
+ help="amplitude")
+ parser.add_option ("-i", "--interp", type="int", default=64,
+ help="set fpga interpolation rate to INTERP")
+ parser.add_option ("-n", "--nchannels", type="int", default=1,
+ help="set number of output channels to NCHANNELS")
+ (options, args) = parser.parse_args ()
+
+ self.waveform_type = gr.GR_CONST_WAVE
+ self.waveform_ampl = options.amplitude
+ self.waveform_freq = 100.12345e3
+ self.waveform_offset = 0
+
+ self.interp = options.interp
+ self._instantiate_blocks ()
+ self.usrp.set_nchannels (options.nchannels)
+
+ self.dboard=self.usrp.db[0][0]
+
+ self.set_waveform_type (self.waveform_type)
+ vbox.Add(slider.slider(panel, 390, 510, self.set_rf_freq), 1, wx.EXPAND|wx.ALIGN_CENTER)
+ vbox.Add(slider.slider(panel, -45000, +45000, self.set_if_freq), 1, wx.EXPAND|wx.ALIGN_CENTER)
+ #vbox.Add(slider.slider(panel, 0, 4095, self.set_gain), 1, wx.EXPAND|wx.ALIGN_CENTER)
+
+ def usb_freq (self):
+ return self.usrp.dac_freq() / self.interp
+
+ def usb_throughput (self):
+ return self.usb_freq () * 4
+
+ def set_waveform_type (self, type):
+ '''
+ valid waveform types are: gr.GR_SIN_WAVE, gr.GR_CONST_WAVE,
+ gr.GR_UNIFORM and gr.GR_GAUSSIAN
+ '''
+ self._configure_graph (type)
+ self.waveform_type = type
+
+ def set_waveform_ampl (self, ampl):
+ self.waveform_ampl = ampl
+ self.siggen.set_amplitude (ampl)
+ self.noisegen.set_amplitude (ampl)
+
+ def set_waveform_freq (self, freq):
+ self.waveform_freq = freq
+ self.siggen.set_frequency (freq)
+
+ def set_if_freq (self, freq):
+ self.if_freq = freq
+ self.usrp.set_tx_freq (0,freq*1e3)
+
+ def set_rf_freq (self, freq):
+ self.rf_freq = freq
+ (success,actual_freq) = self.dboard.set_freq (freq*1e6)
+ if not success:
+ print "Failed on ", freq
+
+ def set_waveform_offset (self, offset):
+ self.waveform_offset = offset
+ self.siggen.set_offset (offset)
+
+ def set_interpolator (self, interp):
+ self.interp = interp
+ self.siggen.set_sampling_freq (self.usb_freq ())
+ self.usrp.set_interp_rate (interp)
+
+ def set_duc_freq (self, freq):
+ self.usrp.set_tx_freq (0, freq)
+
+ def _instantiate_blocks (self):
+ self.src = None
+ self.usrp = usrp.sink_c (0, self.interp)
+
+ self.siggen = gr.sig_source_c (self.usb_freq (),
+ gr.GR_SIN_WAVE,
+ self.waveform_freq,
+ self.waveform_ampl,
+ self.waveform_offset)
+
+ self.noisegen = gr.noise_source_c (gr.GR_UNIFORM,
+ self.waveform_ampl)
+ print "done"
+
+ def _configure_graph (self, type):
+ was_running = self.is_running ()
+ if was_running:
+ self.stop ()
+ self.disconnect_all ()
+ if type == gr.GR_SIN_WAVE or type == gr.GR_CONST_WAVE:
+ self.connect (self.siggen, self.usrp)
+ self.siggen.set_waveform (type)
+ self.src = self.siggen
+ elif type == gr.GR_UNIFORM or type == gr.GR_GAUSSIAN:
+ self.connect (self.noisegen, self.usrp)
+ self.noisegen.set_type (type)
+ self.src = self.noisegen
+ else:
+ raise ValueError, type
+ if was_running:
+ self.start ()
+
+
+if __name__ == '__main__':
+ parser = OptionParser (option_class=eng_option)
+ parser.add_option ("--sine", dest="type", action="store_const", const=gr.GR_SIN_WAVE,
+ help="generate a complex sinusoid [default]", default=gr.GR_SIN_WAVE)
+ parser.add_option ("--const", dest="type", action="store_const", const=gr.GR_CONST_WAVE,
+ help="generate a constant output")
+ parser.add_option ("--gaussian", dest="type", action="store_const", const=gr.GR_GAUSSIAN,
+ help="generate Gaussian random output")
+ parser.add_option ("--uniform", dest="type", action="store_const", const=gr.GR_UNIFORM,
+ help="generate Uniform random output")
+ parser.add_option ("-f", "--freq", type="eng_float", default=100e3,
+ help="set waveform frequency to FREQ")
+ parser.add_option ("-r", "--rf-freq", type="eng_float", default=910e6,
+ help="set waveform frequency to FREQ")
+ parser.add_option ("-a", "--amplitude", type="eng_float", default=16e3,
+ help="set waveform amplitude to AMPLITUDE", metavar="AMPL")
+ parser.add_option ("-o", "--offset", type="eng_float", default=0,
+ help="set waveform offset to OFFSET")
+ parser.add_option ("-c", "--duc-freq", type="eng_float", default=0,
+ help="set Tx DUC frequency to FREQ", metavar="FREQ")
+ parser.add_option ("-m", "--mux", type="intx", default=0x98,
+ help="set output mux register")
+
+ app = stdgui.stdapp (flex_siggen, "USRP FlexRF Siggen")
+ app.MainLoop ()
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr
+from gnuradio import usrp
+from gnuradio import eng_notation
+from gnuradio.eng_option import eng_option
+from optparse import OptionParser
+
+
+
+def build_graph ():
+
+ # interp = 32
+ interp = 64
+ nchan = 2
+
+ if nchan == 1:
+ mux = 0x0098
+ #mux = 0x9800
+ else:
+ mux = 0xba98
+
+ f0 = 100e3
+ a0 = 16e3
+ duc0 = 5e6
+
+ f1 = 50e3
+ a1 = 16e3
+ duc1 = 7e6
+
+ fg = gr.flow_graph ()
+
+ u = usrp.sink_c (0, interp, nchan, mux)
+ sample_rate = u.dac_freq () / interp
+ print "sample_rate = ", eng_notation.num_to_str (sample_rate)
+ print "usb_sample_rate = ", eng_notation.num_to_str (sample_rate * nchan)
+
+ u.set_tx_freq (0, duc0)
+ u.set_tx_freq (1, duc1)
+
+ interleave = gr.interleave (gr.sizeof_gr_complex)
+ fg.connect (interleave, u)
+
+ src0 = gr.sig_source_c (sample_rate, gr.GR_SIN_WAVE, f0, a0, 0)
+ fg.connect (src0, (interleave, 0))
+
+ if nchan == 2:
+ if 1:
+ src1 = gr.sig_source_c (sample_rate, gr.GR_SIN_WAVE, f1, a1, 0)
+ else:
+ src1 = gr.noise_source_c (gr.GR_UNIFORM, a1)
+ fg.connect (src1, (interleave, 1))
+
+ return fg
+
+
+if __name__ == '__main__':
+ fg = build_graph ()
+ fg.start ()
+ raw_input ('Press Enter to quit: ')
+ fg.stop ()
+
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr, gru, blks
+from gnuradio.wxgui import stdgui, fftsink, slider
+from gnuradio.eng_option import eng_option
+from optparse import OptionParser
+import wx
+
+class test_graph (stdgui.gui_flow_graph):
+ def __init__(self, frame, panel, vbox, argv):
+ stdgui.gui_flow_graph.__init__(self, frame, panel, vbox, argv)
+
+ parser = OptionParser (option_class=eng_option)
+ (options, args) = parser.parse_args ()
+
+ sample_rate = 16e3
+ mpoints = 4
+ ampl = 1000
+ freq = 0
+
+ lo_freq = 1e6
+ lo_ampl = 1
+
+ vbox.Add(slider.slider(panel,
+ -sample_rate/2, sample_rate/2,
+ self.set_lo_freq), 0, wx.ALIGN_CENTER)
+
+
+ src = gr.sig_source_c(sample_rate, gr.GR_CONST_WAVE,
+ freq, ampl, 0)
+
+ self.lo = gr.sig_source_c(sample_rate, gr.GR_SIN_WAVE,
+ lo_freq, lo_ampl, 0)
+
+ mixer = gr.multiply_cc()
+ self.connect(src, (mixer, 0))
+ self.connect(self.lo, (mixer, 1))
+
+ # We add these throttle blocks so that this demo doesn't
+ # suck down all the CPU available. Normally you wouldn't use these.
+ thr = gr.throttle(gr.sizeof_gr_complex, sample_rate)
+
+ taps = gr.firdes.low_pass(1, # gain
+ 1, # rate
+ 1.0/mpoints * 0.4, # cutoff
+ 1.0/mpoints * 0.1, # trans width
+ gr.firdes.WIN_HANN)
+ print len(taps)
+ analysis = blks.analysis_filterbank(self, mpoints, taps)
+
+ self.connect(mixer, thr)
+ self.connect(thr, analysis)
+
+ for i in range(mpoints):
+ fft = fftsink.fft_sink_c(self, frame, fft_size=128,
+ sample_rate=sample_rate/mpoints,
+ fft_rate=5,
+ title="Ch %d" % (i,))
+ self.connect((analysis, i), fft)
+ vbox.Add(fft.win, 1, wx.EXPAND)
+
+ def set_lo_freq(self, freq):
+ self.lo.set_frequency(freq)
+
+
+
+def main ():
+ app = stdgui.stdapp (test_graph, "Test DFT filterbank")
+ app.MainLoop ()
+
+if __name__ == '__main__':
+ main ()
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr, gru, blks
+from gnuradio.wxgui import stdgui, fftsink
+from gnuradio.eng_option import eng_option
+from optparse import OptionParser
+import wx
+import random
+
+
+def make_random_complex_tuple(L, gain=1):
+ result = []
+ for x in range(L):
+ result.append(gain * complex(random.gauss(0, 1),random.gauss(0, 1)))
+
+ return tuple(result)
+
+def random_noise_c(gain=1):
+ src = gr.vector_source_c(make_random_complex_tuple(32*1024, gain), True)
+ return src
+
+
+class test_graph (stdgui.gui_flow_graph):
+ def __init__(self, frame, panel, vbox, argv):
+ stdgui.gui_flow_graph.__init__(self, frame, panel, vbox, argv)
+
+ parser = OptionParser (option_class=eng_option)
+ (options, args) = parser.parse_args ()
+
+ sample_rate = 16e6
+ mpoints = 16
+ ampl = 1000
+
+ enable = mpoints * [0]
+ enable[0] = 1
+
+ taps = gr.firdes.low_pass(1, # gain
+ 1, # rate
+ 1.0/mpoints * 0.4, # cutoff
+ 1.0/mpoints * 0.1, # trans width
+ gr.firdes.WIN_HANN)
+
+ synth = blks.synthesis_filterbank(self, mpoints, taps)
+
+ null_source = gr.null_source(gr.sizeof_gr_complex)
+
+ if 0:
+ for i in range(mpoints):
+ s = gr.sig_source_c(sample_rate/mpoints, gr.GR_SIN_WAVE,
+ 300e3, ampl * enable[i], 0)
+ self.connect(s, (synth, i))
+
+ else:
+ for i in range(mpoints):
+ if i == 0:
+ s = gr.sig_source_c(sample_rate/mpoints, gr.GR_SIN_WAVE,
+ 300e3, ampl * enable[i], 0)
+ #s = random_noise_c(ampl)
+ self.connect(s, (synth, i))
+ else:
+ self.connect(null_source, (synth, i))
+
+
+ # We add these throttle blocks so that this demo doesn't
+ # suck down all the CPU available. Normally you wouldn't use these.
+ thr = gr.throttle(gr.sizeof_gr_complex, sample_rate)
+ fft = fftsink.fft_sink_c(self, frame, fft_size=1024,
+ sample_rate=sample_rate)
+ vbox.Add(fft.win, 1, wx.EXPAND)
+
+ self.connect(synth, thr, fft)
+
+
+def main ():
+ app = stdgui.stdapp (test_graph, "Test DFT filterbank")
+ app.MainLoop ()
+
+if __name__ == '__main__':
+ main ()
--- /dev/null
+#!/usr/bin/env python
+#
+# Copyright 2004 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+#
+# Demodulate an AM signal from the TVRX or a recorded file.
+# The file format must be 256 ksps, complex data.
+#
+
+from gnuradio import gr, gru, eng_notation
+from gnuradio import audio_oss as audio
+from gnuradio import usrp
+from gnuradio import tv_rx
+from gnuradio.eng_option import eng_option
+from optparse import OptionParser
+import sys
+import math
+from gnuradio.wxgui import stdgui, fftsink, scopesink
+import wx
+
+#
+# return a gr.flow_graph
+#
+class wfm_rx_graph (stdgui.gui_flow_graph):
+ def __init__(self,frame,panel,vbox,argv):
+ stdgui.gui_flow_graph.__init__ (self,frame,panel,vbox,argv)
+
+ #set rf freq
+ rf_freq = 120.e6
+
+ # Decimation rate from USRP ADC to IF.
+ usrp_decim = 100
+
+ # Calculate the sampling rate of the USRP and capture file.
+ # Decimate the IF sampling rate down by 4 to 64 ksps
+ # This is a flow graph that has an input (capture file) and output (audio channel).
+ #self = gr.flow_graph ()
+
+ # Signal source is assumed to be 256 kspb / complex data stream.
+ which_side = 0
+ # usrp is data source
+ if which_side == 0:
+ src = usrp.source_c (0, usrp_decim, 1, gru.hexint(0xf0f0f0f0), 0)
+ else:
+ src = usrp.source_c (0, usrp_decim, 1, gru.hexint(0xf0f0f0f2), 0)
+
+ if_rate = 640e3 # src.adc_freq() / usrp_decim
+ if_decim = 5
+ demod_rate = if_rate / if_decim
+
+ audio_decimation = 4
+ audio_rate = demod_rate / audio_decimation
+
+ # set up frontend
+ dboard = tv_rx.tv_rx (src, which_side)
+ self.dboard = dboard
+ (success, actual_freq) = dboard.set_freq(rf_freq)
+ assert success
+
+ if_freq = rf_freq - actual_freq
+ src.set_rx_freq (0, -if_freq)
+
+ print "actual freq ", actual_freq
+ print "IF freq ", if_freq
+
+ dboard.set_gain(50)
+
+ #src = gr.file_source (gr.sizeof_gr_complex, "samples/atis_ffz_am_baseband_256k_complex.dat")
+ #src = gr.file_source (gr.sizeof_gr_complex, "samples/garagedoor1.dat", True)
+
+ #channel_coeffs = gr.firdes.band_pass (
+ # 1.0, # gain
+ # if_rate,
+ # 10, # center of low transition band
+ # 10000, # center of hi transition band
+ # 200, # width of transition band
+ # gr.firdes.WIN_HAMMING)
+
+ channel_coeffs = gr.firdes.low_pass (1.0, if_rate, 10e3, 4e3, gr.firdes.WIN_HANN)
+ print "len(channel_coeffs) = ", len(channel_coeffs)
+
+ # Tune to the desired frequency.
+ ddc = gr.freq_xlating_fir_filter_ccf (if_decim, channel_coeffs, -20e3, if_rate)
+
+ # Demodule with classic sqrt (I*I + Q*Q)
+ magblock = gr.complex_to_mag()
+
+ # Scale the audio
+ volumecontrol = gr.multiply_const_ff(.1)
+
+ #band-pass
+ audio_coeffs = gr.firdes.band_pass (
+ 1.0, # gain
+ demod_rate,
+ 10, # center of low transition band
+ 6000, # center of hi transition band
+ 200, # width of transition band
+ gr.firdes.WIN_HAMMING)
+
+
+ # Low pass filter the demodulator output
+ #audio_coeffs = gr.firdes.low_pass (1.0, demod_rate, 500, 200, gr.firdes.WIN_HANN)
+ print "len(audio_coeffs) = ", len(audio_coeffs)
+
+ # input: float; output: float
+ audio_filter = gr.fir_filter_fff (audio_decimation, audio_coeffs)
+
+ # sound card as final sink
+ audio_sink = audio.sink (int (audio_rate))
+
+ # now wire it all together
+ self.connect (src, ddc)
+ self.connect (ddc, magblock)
+ self.connect (magblock, volumecontrol)
+ self.connect (volumecontrol, audio_filter)
+ self.connect (audio_filter, (audio_sink, 0))
+
+ d_win = fftsink.fft_sink_c (self, panel, title="RF", fft_size=512, sample_rate=if_rate)
+ self.connect (src,d_win)
+ vbox.Add (d_win.win, 4, wx.EXPAND)
+
+ p_win = fftsink.fft_sink_c (self, panel, title="IF", fft_size=512, sample_rate=demod_rate)
+ self.connect (ddc,p_win)
+ vbox.Add (p_win.win, 4, wx.EXPAND)
+
+ r_win = fftsink.fft_sink_f (self, panel, title="Audio", fft_size=512, sample_rate=audio_rate)
+ self.connect (audio_filter,r_win)
+ vbox.Add (r_win.win, 4, wx.EXPAND)
+
+ #audio_oscope = scopesink.scope_sink_f (self, panel, "Oscope Data", audio_rate)
+ #self.connect (audio_filter, audio_oscope)
+ #vbox.Add (audio_oscope.win, 4, wx.EXPAND)
+
+if __name__ == '__main__':
+
+ app = stdgui.stdapp (wfm_rx_graph, "TVRX AM RX")
+ app.MainLoop ()
--- /dev/null
+#!/usr/bin/env python
+#
+# Copyright 2004 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+from gnuradio import gr, gru
+from gnuradio import usrp
+from gnuradio import eng_notation
+from gnuradio.eng_option import eng_option
+from gnuradio.wxgui import stdgui, fftsink, scopesink
+from optparse import OptionParser
+import wx
+
+class app_flow_graph (stdgui.gui_flow_graph):
+ def __init__(self, frame, panel, vbox, argv):
+ stdgui.gui_flow_graph.__init__ (self, frame, panel, vbox, argv)
+
+ self.frame = frame
+ self.panel = panel
+
+ parser = OptionParser (option_class=eng_option)
+ parser.add_option ("-d", "--decim", type="int", default=16,
+ help="set fgpa decimation rate to DECIM")
+ parser.add_option ("-c", "--ddc-freq", type="eng_float", default=0,
+ help="set Rx DDC frequency to FREQ", metavar="FREQ")
+ parser.add_option ("-m", "--mux", type="intx", default=0x32103210,
+ help="set fpga FR_RX_MUX register to MUX")
+ parser.add_option ("-g", "--gain", type="eng_float", default=0,
+ help="set Rx PGA gain in dB (default 0 dB)")
+ (options, args) = parser.parse_args ()
+
+ self.u = usrp.source_c (0, options.decim, 1, gru.hexint(options.mux), 0)
+ self.u.set_rx_freq (0, options.ddc_freq)
+
+ self.u.set_pga (0, options.gain)
+ self.u.set_pga (1, options.gain)
+
+ self.u.set_verbose (0)
+
+ input_rate = self.u.adc_freq () / self.u.decim_rate ()
+
+ fft = fftsink.fft_sink_c (self, panel, fft_size=1024, sample_rate=input_rate)
+ #fft = fftsink.fft_sink_c (self, panel, fft_size=1024, fft_rate=50, sample_rate=input_rate)
+ self.connect (self.u, fft)
+ vbox.Add (fft.win, 10, wx.EXPAND)
+
+ if 0:
+ c2f_1 = gr.complex_to_float ()
+ scope = scopesink.scope_sink_f (self, panel, "Rx Data", input_rate)
+ vbox.Add (scope.win, 4, wx.EXPAND)
+
+ self.connect (self.u,c2f_1)
+ self.connect ((c2f_1, 0), (scope, 0))
+ self.connect ((c2f_1, 1), (scope, 1))
+
+ # build small control area at bottom
+ hbox = wx.BoxSizer (wx.HORIZONTAL)
+ hbox.Add ((1, 1), 1, wx.EXPAND)
+ hbox.Add (wx.StaticText (panel, -1, "Set ddc freq: "), 0, wx.ALIGN_CENTER)
+ self.tc_freq = wx.TextCtrl (panel, -1, "", style=wx.TE_PROCESS_ENTER)
+ hbox.Add (self.tc_freq, 0, wx.ALIGN_CENTER)
+ wx.EVT_TEXT_ENTER (self.tc_freq, self.tc_freq.GetId(), self.handle_text_enter)
+ hbox.Add ((1, 1), 1, wx.EXPAND)
+ # add it to the main vbox
+ vbox.Add (hbox, 0, wx.EXPAND)
+
+ self.update_status_bar ()
+
+ def handle_text_enter (self, event):
+ str = event.GetString ()
+ self.tc_freq.Clear ()
+ self.u.set_rx_freq (0, eng_notation.str_to_num (str))
+ self.update_status_bar ()
+
+ def update_status_bar (self):
+ ddc_freq = self.u.rx_freq (0)
+ decim_rate = self.u.decim_rate ()
+ sample_rate = self.u.adc_freq () / decim_rate
+ msg = "decim: %d %sS/s DDC: %s" % (
+ decim_rate,
+ eng_notation.num_to_str (sample_rate),
+ eng_notation.num_to_str (ddc_freq))
+
+ self.frame.GetStatusBar().SetStatusText (msg, 1)
+
+
+
+def main ():
+ app = stdgui.stdapp (app_flow_graph, "USRP FFT")
+ app.MainLoop ()
+
+if __name__ == '__main__':
+ main ()
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr
-from gnuradio import usrp
-from gnuradio import eng_notation
-from gnuradio.eng_option import eng_option
-from optparse import OptionParser
-
-
-
-def build_graph ():
-
- # interp = 32
- interp = 64
- nchan = 2
-
- if nchan == 1:
- mux = 0x0098
- #mux = 0x9800
- else:
- mux = 0xba98
-
- f0 = 100e3
- a0 = 16e3
- duc0 = 5e6
-
- f1 = 50e3
- a1 = 16e3
- duc1 = 7e6
-
- fg = gr.flow_graph ()
-
- u = usrp.sink_c (0, interp, nchan, mux)
- sample_rate = u.dac_freq () / interp
- print "sample_rate = ", eng_notation.num_to_str (sample_rate)
- print "usb_sample_rate = ", eng_notation.num_to_str (sample_rate * nchan)
-
- u.set_tx_freq (0, duc0)
- u.set_tx_freq (1, duc1)
-
- interleave = gr.interleave (gr.sizeof_gr_complex)
- fg.connect (interleave, u)
-
- src0 = gr.sig_source_c (sample_rate, gr.GR_SIN_WAVE, f0, a0, 0)
- fg.connect (src0, (interleave, 0))
-
- if nchan == 2:
- if 1:
- src1 = gr.sig_source_c (sample_rate, gr.GR_SIN_WAVE, f1, a1, 0)
- else:
- src1 = gr.noise_source_c (gr.GR_UNIFORM, a1)
- fg.connect (src1, (interleave, 1))
-
- return fg
-
-
-if __name__ == '__main__':
- fg = build_graph ()
- fg.start ()
- raw_input ('Press Enter to quit: ')
- fg.stop ()
-
+++ /dev/null
-#!/usr/bin/env python
-#
-# Copyright 2004 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-"""
-Check Rx path or USRP Rev 1.
-
-This configures the USRP to return a periodic sequence of integers
-"""
-
-from gnuradio import gr
-from gnuradio import usrp
-
-def build_graph ():
- rx_decim = 32
-
- fg = gr.flow_graph ()
- usrp_rx = usrp.source_s (0, rx_decim, 1, 0x32103210, usrp.FPGA_MODE_COUNTING)
- sink = gr.check_counting_s ()
- fg.connect (usrp_rx, sink)
-
- # file_sink = gr.file_sink (gr.sizeof_short, 'counting.dat')
- # fg.connect (usrp_rx, file_sink)
-
- return fg
-
-def main ():
- fg = build_graph ()
- try:
- fg.run()
- except KeyboardInterrupt:
- pass
-
-if __name__ == '__main__':
- main ()
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr, gru, blks
-from gnuradio.wxgui import stdgui, fftsink, slider
-from gnuradio.eng_option import eng_option
-from optparse import OptionParser
-import wx
-
-class test_graph (stdgui.gui_flow_graph):
- def __init__(self, frame, panel, vbox, argv):
- stdgui.gui_flow_graph.__init__(self, frame, panel, vbox, argv)
-
- parser = OptionParser (option_class=eng_option)
- (options, args) = parser.parse_args ()
-
- sample_rate = 16e3
- mpoints = 4
- ampl = 1000
- freq = 0
-
- lo_freq = 1e6
- lo_ampl = 1
-
- vbox.Add(slider.slider(panel,
- -sample_rate/2, sample_rate/2,
- self.set_lo_freq), 0, wx.ALIGN_CENTER)
-
-
- src = gr.sig_source_c(sample_rate, gr.GR_CONST_WAVE,
- freq, ampl, 0)
-
- self.lo = gr.sig_source_c(sample_rate, gr.GR_SIN_WAVE,
- lo_freq, lo_ampl, 0)
-
- mixer = gr.multiply_cc()
- self.connect(src, (mixer, 0))
- self.connect(self.lo, (mixer, 1))
-
- # We add these throttle blocks so that this demo doesn't
- # suck down all the CPU available. Normally you wouldn't use these.
- thr = gr.throttle(gr.sizeof_gr_complex, sample_rate)
-
- taps = gr.firdes.low_pass(1, # gain
- 1, # rate
- 1.0/mpoints * 0.4, # cutoff
- 1.0/mpoints * 0.1, # trans width
- gr.firdes.WIN_HANN)
- print len(taps)
- analysis = blks.analysis_filterbank(self, mpoints, taps)
-
- self.connect(mixer, thr)
- self.connect(thr, analysis)
-
- for i in range(mpoints):
- fft = fftsink.fft_sink_c(self, frame, fft_size=128,
- sample_rate=sample_rate/mpoints,
- fft_rate=5,
- title="Ch %d" % (i,))
- self.connect((analysis, i), fft)
- vbox.Add(fft.win, 1, wx.EXPAND)
-
- def set_lo_freq(self, freq):
- self.lo.set_frequency(freq)
-
-
-
-def main ():
- app = stdgui.stdapp (test_graph, "Test DFT filterbank")
- app.MainLoop ()
-
-if __name__ == '__main__':
- main ()
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr, gru, blks
-from gnuradio.wxgui import stdgui, fftsink
-from gnuradio.eng_option import eng_option
-from optparse import OptionParser
-import wx
-import random
-
-
-def make_random_complex_tuple(L, gain=1):
- result = []
- for x in range(L):
- result.append(gain * complex(random.gauss(0, 1),random.gauss(0, 1)))
-
- return tuple(result)
-
-def random_noise_c(gain=1):
- src = gr.vector_source_c(make_random_complex_tuple(32*1024, gain), True)
- return src
-
-
-class test_graph (stdgui.gui_flow_graph):
- def __init__(self, frame, panel, vbox, argv):
- stdgui.gui_flow_graph.__init__(self, frame, panel, vbox, argv)
-
- parser = OptionParser (option_class=eng_option)
- (options, args) = parser.parse_args ()
-
- sample_rate = 16e6
- mpoints = 16
- ampl = 1000
-
- enable = mpoints * [0]
- enable[0] = 1
-
- taps = gr.firdes.low_pass(1, # gain
- 1, # rate
- 1.0/mpoints * 0.4, # cutoff
- 1.0/mpoints * 0.1, # trans width
- gr.firdes.WIN_HANN)
-
- synth = blks.synthesis_filterbank(self, mpoints, taps)
-
- null_source = gr.null_source(gr.sizeof_gr_complex)
-
- if 0:
- for i in range(mpoints):
- s = gr.sig_source_c(sample_rate/mpoints, gr.GR_SIN_WAVE,
- 300e3, ampl * enable[i], 0)
- self.connect(s, (synth, i))
-
- else:
- for i in range(mpoints):
- if i == 0:
- s = gr.sig_source_c(sample_rate/mpoints, gr.GR_SIN_WAVE,
- 300e3, ampl * enable[i], 0)
- #s = random_noise_c(ampl)
- self.connect(s, (synth, i))
- else:
- self.connect(null_source, (synth, i))
-
-
- # We add these throttle blocks so that this demo doesn't
- # suck down all the CPU available. Normally you wouldn't use these.
- thr = gr.throttle(gr.sizeof_gr_complex, sample_rate)
- fft = fftsink.fft_sink_c(self, frame, fft_size=1024,
- sample_rate=sample_rate)
- vbox.Add(fft.win, 1, wx.EXPAND)
-
- self.connect(synth, thr, fft)
-
-
-def main ():
- app = stdgui.stdapp (test_graph, "Test DFT filterbank")
- app.MainLoop ()
-
-if __name__ == '__main__':
- main ()
+++ /dev/null
-#!/usr/bin/env python
-#
-# Copyright 2004 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-"""
-Digital loopback (Tx to Rx) for the USRP Rev1.
-"""
-
-
-from gnuradio import gr
-from gnuradio import usrp
-
-
-def ramp_source (fg):
- period = 2**16
- src = gr.vector_source_s (range (-period/2, period/2, 1), True)
- return src
-
-def build_graph ():
- tx_interp = 32 # tx should be twice rx
- rx_decim = 16
-
- fg = gr.flow_graph ()
-
- data_src = ramp_source (fg)
- # usrp_tx = usrp.sink_s (0, tx_interp, 1, 0x98)
- usrp_tx = usrp.sink_s (0, tx_interp)
- fg.connect (data_src, usrp_tx)
-
- usrp_rx = usrp.source_s (0, rx_decim, 1, 0x32103210, usrp.FPGA_MODE_LOOPBACK)
- sink = gr.check_counting_s ()
- fg.connect (usrp_rx, sink)
-
- # file_sink = gr.file_sink (gr.sizeof_short, "loopback.dat")
- # fg.connect (usrp_rx, file_sink)
-
- return fg
-
-def main ():
- fg = build_graph ()
- try:
- fg.run()
- except KeyboardInterrupt:
- pass
-
-if __name__ == '__main__':
- main ()
+++ /dev/null
-#!/usr/bin/env python
-#
-# Copyright 2004 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-"""
-Digital loopback (Tx to Rx) for the USRP Rev1.
-"""
-
-from gnuradio import gr
-from gnuradio import usrp
-
-
-def build_graph ():
- tx_interp = 32 # tx should be twice rx
- rx_decim = 16
-
- fg = gr.flow_graph ()
-
- data_src = gr.lfsr_32k_source_s ()
-
- # usrp_tx = usrp.sink_s (0, tx_interp, 1, 0x98)
- usrp_tx = usrp.sink_s (0, tx_interp)
-
- fg.connect (data_src, usrp_tx)
-
- usrp_rx = usrp.source_s (0, rx_decim, 1, 0x32103210, usrp.FPGA_MODE_LOOPBACK)
-
- sink = gr.check_lfsr_32k_s ()
- fg.connect (usrp_rx, sink)
-
- # file_sink = gr.file_sink (gr.sizeof_short, "loopback.dat")
- # fg.connect (usrp_rx, file_sink)
-
- return fg
-
-def main ():
- fg = build_graph ()
- try:
- fg.run()
- except KeyboardInterrupt:
- pass
-
-if __name__ == '__main__':
- main ()
+++ /dev/null
-#!/usr/bin/env python
-#
-# Copyright 2004 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-#
-# Demodulate an AM signal from the TVRX or a recorded file.
-# The file format must be 256 ksps, complex data.
-#
-
-from gnuradio import gr, gru, eng_notation
-from gnuradio import audio_oss as audio
-from gnuradio import usrp
-from gnuradio import tv_rx
-from gnuradio.eng_option import eng_option
-from optparse import OptionParser
-import sys
-import math
-from gnuradio.wxgui import stdgui, fftsink, scopesink
-import wx
-
-#
-# return a gr.flow_graph
-#
-class wfm_rx_graph (stdgui.gui_flow_graph):
- def __init__(self,frame,panel,vbox,argv):
- stdgui.gui_flow_graph.__init__ (self,frame,panel,vbox,argv)
-
- #set rf freq
- rf_freq = 120.e6
-
- # Decimation rate from USRP ADC to IF.
- usrp_decim = 100
-
- # Calculate the sampling rate of the USRP and capture file.
- # Decimate the IF sampling rate down by 4 to 64 ksps
- # This is a flow graph that has an input (capture file) and output (audio channel).
- #self = gr.flow_graph ()
-
- # Signal source is assumed to be 256 kspb / complex data stream.
- which_side = 0
- # usrp is data source
- if which_side == 0:
- src = usrp.source_c (0, usrp_decim, 1, gru.hexint(0xf0f0f0f0), 0)
- else:
- src = usrp.source_c (0, usrp_decim, 1, gru.hexint(0xf0f0f0f2), 0)
-
- if_rate = 640e3 # src.adc_freq() / usrp_decim
- if_decim = 5
- demod_rate = if_rate / if_decim
-
- audio_decimation = 4
- audio_rate = demod_rate / audio_decimation
-
- # set up frontend
- dboard = tv_rx.tv_rx (src, which_side)
- self.dboard = dboard
- (success, actual_freq) = dboard.set_freq(rf_freq)
- assert success
-
- if_freq = rf_freq - actual_freq
- src.set_rx_freq (0, -if_freq)
-
- print "actual freq ", actual_freq
- print "IF freq ", if_freq
-
- dboard.set_gain(50)
-
- #src = gr.file_source (gr.sizeof_gr_complex, "samples/atis_ffz_am_baseband_256k_complex.dat")
- #src = gr.file_source (gr.sizeof_gr_complex, "samples/garagedoor1.dat", True)
-
- #channel_coeffs = gr.firdes.band_pass (
- # 1.0, # gain
- # if_rate,
- # 10, # center of low transition band
- # 10000, # center of hi transition band
- # 200, # width of transition band
- # gr.firdes.WIN_HAMMING)
-
- channel_coeffs = gr.firdes.low_pass (1.0, if_rate, 10e3, 4e3, gr.firdes.WIN_HANN)
- print "len(channel_coeffs) = ", len(channel_coeffs)
-
- # Tune to the desired frequency.
- ddc = gr.freq_xlating_fir_filter_ccf (if_decim, channel_coeffs, -20e3, if_rate)
-
- # Demodule with classic sqrt (I*I + Q*Q)
- magblock = gr.complex_to_mag()
-
- # Scale the audio
- volumecontrol = gr.multiply_const_ff(.1)
-
- #band-pass
- audio_coeffs = gr.firdes.band_pass (
- 1.0, # gain
- demod_rate,
- 10, # center of low transition band
- 6000, # center of hi transition band
- 200, # width of transition band
- gr.firdes.WIN_HAMMING)
-
-
- # Low pass filter the demodulator output
- #audio_coeffs = gr.firdes.low_pass (1.0, demod_rate, 500, 200, gr.firdes.WIN_HANN)
- print "len(audio_coeffs) = ", len(audio_coeffs)
-
- # input: float; output: float
- audio_filter = gr.fir_filter_fff (audio_decimation, audio_coeffs)
-
- # sound card as final sink
- audio_sink = audio.sink (int (audio_rate))
-
- # now wire it all together
- self.connect (src, ddc)
- self.connect (ddc, magblock)
- self.connect (magblock, volumecontrol)
- self.connect (volumecontrol, audio_filter)
- self.connect (audio_filter, (audio_sink, 0))
-
- d_win = fftsink.fft_sink_c (self, panel, title="RF", fft_size=512, sample_rate=if_rate)
- self.connect (src,d_win)
- vbox.Add (d_win.win, 4, wx.EXPAND)
-
- p_win = fftsink.fft_sink_c (self, panel, title="IF", fft_size=512, sample_rate=demod_rate)
- self.connect (ddc,p_win)
- vbox.Add (p_win.win, 4, wx.EXPAND)
-
- r_win = fftsink.fft_sink_f (self, panel, title="Audio", fft_size=512, sample_rate=audio_rate)
- self.connect (audio_filter,r_win)
- vbox.Add (r_win.win, 4, wx.EXPAND)
-
- #audio_oscope = scopesink.scope_sink_f (self, panel, "Oscope Data", audio_rate)
- #self.connect (audio_filter, audio_oscope)
- #vbox.Add (audio_oscope.win, 4, wx.EXPAND)
-
-if __name__ == '__main__':
-
- app = stdgui.stdapp (wfm_rx_graph, "TVRX AM RX")
- app.MainLoop ()
+++ /dev/null
-#!/usr/bin/env python
-#
-# Copyright 2004,2005 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-from gnuradio import gr, gru
-from gnuradio import usrp
-from gnuradio import eng_notation
-from gnuradio.eng_option import eng_option
-from gnuradio.wxgui import stdgui, fftsink, waterfallsink, scopesink, form, slider
-from optparse import OptionParser
-import wx
-import sys
-
-
-def pick_subdevice(u):
- """
- The user didn't specify a subdevice on the command line.
- If there's a daughterboard on A, select A.
- If there's a daughterboard on B, select B.
- Otherwise, select A.
- """
- if u.db[0][0].dbid() >= 0: # dbid is < 0 if there's no d'board or a problem
- return (0, 0)
- if u.db[1][0].dbid() >= 0:
- return (1, 0)
- return (0, 0)
-
-
-class app_flow_graph(stdgui.gui_flow_graph):
- def __init__(self, frame, panel, vbox, argv):
- stdgui.gui_flow_graph.__init__(self)
-
- self.frame = frame
- self.panel = panel
-
- parser = OptionParser(option_class=eng_option)
- parser.add_option("-w", "--which", type="int", default=0,
- help="select which USRP (0, 1, ...) default is %default",
- metavar="NUM")
- parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=None,
- help="select USRP Rx side A or B (default=first one with a daughterboard)")
- parser.add_option("-d", "--decim", type="int", default=16,
- help="set fgpa decimation rate to DECIM [default=%default]")
- parser.add_option("-f", "--freq", type="eng_float", default=None,
- help="set frequency to FREQ", metavar="FREQ")
- parser.add_option("-g", "--gain", type="eng_float", default=None,
- help="set gain in dB (default is midpoint)")
- parser.add_option("-W", "--waterfall", action="store_true", default=False,
- help="Enable waterfall display")
- parser.add_option("-8", "--width-8", action="store_true", default=False,
- help="Enable 8-bit samples across USB")
- parser.add_option("-S", "--oscilloscope", action="store_true", default=False,
- help="Enable oscilloscope display")
- (options, args) = parser.parse_args()
- if len(args) != 0:
- parser.print_help()
- sys.exit(1)
-
- self.show_debug_info = True
-
- # build the graph
-
- self.u = usrp.source_c(which=options.which, decim_rate=options.decim)
- if options.rx_subdev_spec is None:
- options.rx_subdev_spec = pick_subdevice(self.u)
- self.u.set_mux(usrp.determine_rx_mux_value(self.u, options.rx_subdev_spec))
-
- if options.width_8:
- width = 8
- shift = 8
- format = self.u.make_format(width, shift)
- print "format =", hex(format)
- r = self.u.set_format(format)
- print "set_format =", r
-
- # determine the daughterboard subdevice we're using
- self.subdev = usrp.selected_subdev(self.u, options.rx_subdev_spec)
-
- input_rate = self.u.adc_freq() / self.u.decim_rate()
-
- if options.waterfall:
- self.scope = \
- waterfallsink.waterfall_sink_c (self, panel, fft_size=1024, sample_rate=input_rate)
- elif options.oscilloscope:
- self.scope = scopesink.scope_sink_c(self, panel, sample_rate=input_rate)
- else:
- self.scope = fftsink.fft_sink_c (self, panel, fft_size=1024, sample_rate=input_rate)
-
- self.connect(self.u, self.scope)
-
- self._build_gui(vbox)
-
- # set initial values
-
- if options.gain is None:
- # if no gain was specified, use the mid-point in dB
- g = self.subdev.gain_range()
- options.gain = float(g[0]+g[1])/2
-
- if options.freq is None:
- # if no freq was specified, use the mid-point
- r = self.subdev.freq_range()
- options.freq = float(r[0]+r[1])/2
-
- self.set_gain(options.gain)
-
- if self.show_debug_info:
- self.myform['decim'].set_value(self.u.decim_rate())
- self.myform['fs@usb'].set_value(self.u.adc_freq() / self.u.decim_rate())
- self.myform['dbname'].set_value(self.subdev.name())
- self.myform['baseband'].set_value(0)
- self.myform['ddc'].set_value(0)
-
- if not(self.set_freq(options.freq)):
- self._set_status_msg("Failed to set initial frequency")
-
- def _set_status_msg(self, msg):
- self.frame.GetStatusBar().SetStatusText(msg, 0)
-
- def _build_gui(self, vbox):
-
- def _form_set_freq(kv):
- return self.set_freq(kv['freq'])
-
- vbox.Add(self.scope.win, 10, wx.EXPAND)
-
- # add control area at the bottom
- self.myform = myform = form.form()
- hbox = wx.BoxSizer(wx.HORIZONTAL)
- hbox.Add((5,0), 0, 0)
- myform['freq'] = form.float_field(
- parent=self.panel, sizer=hbox, label="Center freq", weight=1,
- callback=myform.check_input_and_call(_form_set_freq, self._set_status_msg))
-
- hbox.Add((5,0), 0, 0)
- g = self.subdev.gain_range()
- myform['gain'] = form.slider_field(parent=self.panel, sizer=hbox, label="Gain",
- weight=3,
- min=int(g[0]), max=int(g[1]),
- callback=self.set_gain)
-
- hbox.Add((5,0), 0, 0)
- vbox.Add(hbox, 0, wx.EXPAND)
-
- self._build_subpanel(vbox)
-
- def _build_subpanel(self, vbox_arg):
- # build a secondary information panel (sometimes hidden)
-
- # FIXME figure out how to have this be a subpanel that is always
- # created, but has its visibility controlled by foo.Show(True/False)
-
- def _form_set_decim(kv):
- return self.set_decim(kv['decim'])
-
- if not(self.show_debug_info):
- return
-
- panel = self.panel
- vbox = vbox_arg
- myform = self.myform
-
- #panel = wx.Panel(self.panel, -1)
- #vbox = wx.BoxSizer(wx.VERTICAL)
-
- hbox = wx.BoxSizer(wx.HORIZONTAL)
- hbox.Add((5,0), 0)
-
- myform['decim'] = form.int_field(
- parent=panel, sizer=hbox, label="Decim",
- callback=myform.check_input_and_call(_form_set_decim, self._set_status_msg))
-
- hbox.Add((5,0), 1)
- myform['fs@usb'] = form.static_float_field(
- parent=panel, sizer=hbox, label="Fs@USB")
-
- hbox.Add((5,0), 1)
- myform['dbname'] = form.static_text_field(
- parent=panel, sizer=hbox)
-
- hbox.Add((5,0), 1)
- myform['baseband'] = form.static_float_field(
- parent=panel, sizer=hbox, label="Analog BB")
-
- hbox.Add((5,0), 1)
- myform['ddc'] = form.static_float_field(
- parent=panel, sizer=hbox, label="DDC")
-
- hbox.Add((5,0), 0)
- vbox.Add(hbox, 0, wx.EXPAND)
-
-
- def set_freq(self, target_freq):
- """
- Set the center frequency we're interested in.
-
- @param target_freq: frequency in Hz
- @rypte: bool
-
- Tuning is a two step process. First we ask the front-end to
- tune as close to the desired frequency as it can. Then we use
- the result of that operation and our target_frequency to
- determine the value for the digital down converter.
- """
- r = self.u.tune(0, self.subdev, target_freq)
-
- if r:
- self.myform['freq'].set_value(target_freq) # update displayed value
- if self.show_debug_info:
- self.myform['baseband'].set_value(r.baseband_freq)
- self.myform['ddc'].set_value(r.dxc_freq)
- return True
-
- return False
-
- def set_gain(self, gain):
- self.myform['gain'].set_value(gain) # update displayed value
- self.subdev.set_gain(gain)
-
- def set_decim(self, decim):
- ok = self.u.set_decim_rate(decim)
- if not ok:
- print "set_decim failed"
- input_rate = self.u.adc_freq() / self.u.decim_rate()
- self.scope.set_sample_rate(input_rate)
- if self.show_debug_info: # update displayed values
- self.myform['decim'].set_value(self.u.decim_rate())
- self.myform['fs@usb'].set_value(self.u.adc_freq() / self.u.decim_rate())
- return ok
-
-def main ():
- app = stdgui.stdapp(app_flow_graph, "USRP FFT", nstatus=1)
- app.MainLoop()
-
-if __name__ == '__main__':
- main ()
+++ /dev/null
-#!/usr/bin/env python
-#
-# Copyright 2004 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-from gnuradio import gr, gru
-from gnuradio import usrp
-from gnuradio import eng_notation
-from gnuradio.eng_option import eng_option
-from gnuradio.wxgui import stdgui, fftsink, scopesink
-from optparse import OptionParser
-import wx
-
-class app_flow_graph (stdgui.gui_flow_graph):
- def __init__(self, frame, panel, vbox, argv):
- stdgui.gui_flow_graph.__init__ (self, frame, panel, vbox, argv)
-
- self.frame = frame
- self.panel = panel
-
- parser = OptionParser (option_class=eng_option)
- parser.add_option ("-d", "--decim", type="int", default=16,
- help="set fgpa decimation rate to DECIM")
- parser.add_option ("-c", "--ddc-freq", type="eng_float", default=0,
- help="set Rx DDC frequency to FREQ", metavar="FREQ")
- parser.add_option ("-m", "--mux", type="intx", default=0x32103210,
- help="set fpga FR_RX_MUX register to MUX")
- parser.add_option ("-g", "--gain", type="eng_float", default=0,
- help="set Rx PGA gain in dB (default 0 dB)")
- (options, args) = parser.parse_args ()
-
- self.u = usrp.source_c (0, options.decim, 1, gru.hexint(options.mux), 0)
- self.u.set_rx_freq (0, options.ddc_freq)
-
- self.u.set_pga (0, options.gain)
- self.u.set_pga (1, options.gain)
-
- self.u.set_verbose (0)
-
- input_rate = self.u.adc_freq () / self.u.decim_rate ()
-
- fft = fftsink.fft_sink_c (self, panel, fft_size=1024, sample_rate=input_rate)
- #fft = fftsink.fft_sink_c (self, panel, fft_size=1024, fft_rate=50, sample_rate=input_rate)
- self.connect (self.u, fft)
- vbox.Add (fft.win, 10, wx.EXPAND)
-
- if 0:
- c2f_1 = gr.complex_to_float ()
- scope = scopesink.scope_sink_f (self, panel, "Rx Data", input_rate)
- vbox.Add (scope.win, 4, wx.EXPAND)
-
- self.connect (self.u,c2f_1)
- self.connect ((c2f_1, 0), (scope, 0))
- self.connect ((c2f_1, 1), (scope, 1))
-
- # build small control area at bottom
- hbox = wx.BoxSizer (wx.HORIZONTAL)
- hbox.Add ((1, 1), 1, wx.EXPAND)
- hbox.Add (wx.StaticText (panel, -1, "Set ddc freq: "), 0, wx.ALIGN_CENTER)
- self.tc_freq = wx.TextCtrl (panel, -1, "", style=wx.TE_PROCESS_ENTER)
- hbox.Add (self.tc_freq, 0, wx.ALIGN_CENTER)
- wx.EVT_TEXT_ENTER (self.tc_freq, self.tc_freq.GetId(), self.handle_text_enter)
- hbox.Add ((1, 1), 1, wx.EXPAND)
- # add it to the main vbox
- vbox.Add (hbox, 0, wx.EXPAND)
-
- self.update_status_bar ()
-
- def handle_text_enter (self, event):
- str = event.GetString ()
- self.tc_freq.Clear ()
- self.u.set_rx_freq (0, eng_notation.str_to_num (str))
- self.update_status_bar ()
-
- def update_status_bar (self):
- ddc_freq = self.u.rx_freq (0)
- decim_rate = self.u.decim_rate ()
- sample_rate = self.u.adc_freq () / decim_rate
- msg = "decim: %d %sS/s DDC: %s" % (
- decim_rate,
- eng_notation.num_to_str (sample_rate),
- eng_notation.num_to_str (ddc_freq))
-
- self.frame.GetStatusBar().SetStatusText (msg, 1)
-
-
-
-def main ():
- app = stdgui.stdapp (app_flow_graph, "USRP FFT")
- app.MainLoop ()
-
-if __name__ == '__main__':
- main ()
+++ /dev/null
-#!/usr/bin/env python
-#
-# Copyright 2004,2005,2006 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-# print "Loading revised usrp_oscope with additional options for scopesink..."
-
-from gnuradio import gr, gru
-from gnuradio import usrp
-from gnuradio import eng_notation
-from gnuradio.eng_option import eng_option
-from gnuradio.wxgui import stdgui, fftsink, waterfallsink, scopesink, form, slider
-from optparse import OptionParser
-import wx
-import sys
-
-
-def pick_subdevice(u):
- """
- The user didn't specify a subdevice on the command line.
- If there's a daughterboard on A, select A.
- If there's a daughterboard on B, select B.
- Otherwise, select A.
- """
- if u.db[0][0].dbid() >= 0: # dbid is < 0 if there's no d'board or a problem
- return (0, 0)
- if u.db[1][0].dbid() >= 0:
- return (1, 0)
- return (0, 0)
-
-
-class app_flow_graph(stdgui.gui_flow_graph):
- def __init__(self, frame, panel, vbox, argv):
- stdgui.gui_flow_graph.__init__(self)
-
- self.frame = frame
- self.panel = panel
-
- parser = OptionParser(option_class=eng_option)
- parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=None,
- help="select USRP Rx side A or B (default=first one with a daughterboard)")
- parser.add_option("-d", "--decim", type="int", default=16,
- help="set fgpa decimation rate to DECIM [default=%default]")
- parser.add_option("-f", "--freq", type="eng_float", default=None,
- help="set frequency to FREQ", metavar="FREQ")
- parser.add_option("-g", "--gain", type="eng_float", default=None,
- help="set gain in dB (default is midpoint)")
- parser.add_option("-8", "--width-8", action="store_true", default=False,
- help="Enable 8-bit samples across USB")
- parser.add_option("-n", "--frame-decim", type="int", default=1,
- help="set oscope frame decimation factor to n [default=1]")
- parser.add_option("-v", "--v-scale", type="eng_float", default=1000,
- help="set oscope initial V/div to SCALE [default=%default]")
- parser.add_option("-t", "--t-scale", type="eng_float", default=49e-6,
- help="set oscope initial s/div to SCALE [default=50us]")
- (options, args) = parser.parse_args()
- if len(args) != 0:
- parser.print_help()
- sys.exit(1)
-
- self.show_debug_info = True
-
- # build the graph
-
- self.u = usrp.source_c(decim_rate=options.decim)
- if options.rx_subdev_spec is None:
- options.rx_subdev_spec = pick_subdevice(self.u)
- self.u.set_mux(usrp.determine_rx_mux_value(self.u, options.rx_subdev_spec))
-
- if options.width_8:
- width = 8
- shift = 8
- format = self.u.make_format(width, shift)
- #print "format =", hex(format)
- r = self.u.set_format(format)
- #print "set_format =", r
-
- # determine the daughterboard subdevice we're using
- self.subdev = usrp.selected_subdev(self.u, options.rx_subdev_spec)
-
- input_rate = self.u.adc_freq() / self.u.decim_rate()
-
- self.scope = scopesink.scope_sink_c(self, panel, sample_rate=input_rate,
- frame_decim=options.frame_decim,
- v_scale=options.v_scale,
- t_scale=options.t_scale)
- self.connect(self.u, self.scope)
-
- self._build_gui(vbox)
-
- # set initial values
-
- if options.gain is None:
- # if no gain was specified, use the mid-point in dB
- g = self.subdev.gain_range()
- options.gain = float(g[0]+g[1])/2
-
- if options.freq is None:
- # if no freq was specified, use the mid-point
- r = self.subdev.freq_range()
- options.freq = float(r[0]+r[1])/2
-
- self.set_gain(options.gain)
-
- if self.show_debug_info:
- self.myform['decim'].set_value(self.u.decim_rate())
- self.myform['fs@usb'].set_value(self.u.adc_freq() / self.u.decim_rate())
- self.myform['dbname'].set_value(self.subdev.name())
- self.myform['baseband'].set_value(0)
- self.myform['ddc'].set_value(0)
-
- if not(self.set_freq(options.freq)):
- self._set_status_msg("Failed to set initial frequency")
-
-
- def _set_status_msg(self, msg):
- self.frame.GetStatusBar().SetStatusText(msg, 0)
-
- def _build_gui(self, vbox):
-
- def _form_set_freq(kv):
- return self.set_freq(kv['freq'])
-
- vbox.Add(self.scope.win, 10, wx.EXPAND)
-
- # add control area at the bottom
- self.myform = myform = form.form()
- hbox = wx.BoxSizer(wx.HORIZONTAL)
- hbox.Add((5,0), 0, 0)
- myform['freq'] = form.float_field(
- parent=self.panel, sizer=hbox, label="Center freq", weight=1,
- callback=myform.check_input_and_call(_form_set_freq, self._set_status_msg))
-
- hbox.Add((5,0), 0, 0)
- g = self.subdev.gain_range()
- myform['gain'] = form.slider_field(parent=self.panel, sizer=hbox, label="Gain",
- weight=3,
- min=int(g[0]), max=int(g[1]),
- callback=self.set_gain)
-
- hbox.Add((5,0), 0, 0)
- vbox.Add(hbox, 0, wx.EXPAND)
-
- self._build_subpanel(vbox)
-
- def _build_subpanel(self, vbox_arg):
- # build a secondary information panel (sometimes hidden)
-
- # FIXME figure out how to have this be a subpanel that is always
- # created, but has its visibility controlled by foo.Show(True/False)
-
- def _form_set_decim(kv):
- return self.set_decim(kv['decim'])
-
- if not(self.show_debug_info):
- return
-
- panel = self.panel
- vbox = vbox_arg
- myform = self.myform
-
- #panel = wx.Panel(self.panel, -1)
- #vbox = wx.BoxSizer(wx.VERTICAL)
-
- hbox = wx.BoxSizer(wx.HORIZONTAL)
- hbox.Add((5,0), 0)
-
- myform['decim'] = form.int_field(
- parent=panel, sizer=hbox, label="Decim",
- callback=myform.check_input_and_call(_form_set_decim, self._set_status_msg))
-
- hbox.Add((5,0), 1)
- myform['fs@usb'] = form.static_float_field(
- parent=panel, sizer=hbox, label="Fs@USB")
-
- hbox.Add((5,0), 1)
- myform['dbname'] = form.static_text_field(
- parent=panel, sizer=hbox)
-
- hbox.Add((5,0), 1)
- myform['baseband'] = form.static_float_field(
- parent=panel, sizer=hbox, label="Analog BB")
-
- hbox.Add((5,0), 1)
- myform['ddc'] = form.static_float_field(
- parent=panel, sizer=hbox, label="DDC")
-
- hbox.Add((5,0), 0)
- vbox.Add(hbox, 0, wx.EXPAND)
-
-
- def set_freq(self, target_freq):
- """
- Set the center frequency we're interested in.
-
- @param target_freq: frequency in Hz
- @rypte: bool
-
- Tuning is a two step process. First we ask the front-end to
- tune as close to the desired frequency as it can. Then we use
- the result of that operation and our target_frequency to
- determine the value for the digital down converter.
- """
- r = usrp.tune(self.u, 0, self.subdev, target_freq)
-
- if r:
- self.myform['freq'].set_value(target_freq) # update displayed value
- if self.show_debug_info:
- self.myform['baseband'].set_value(r.baseband_freq)
- self.myform['ddc'].set_value(r.dxc_freq)
- return True
-
- return False
-
- def set_gain(self, gain):
- self.myform['gain'].set_value(gain) # update displayed value
- self.subdev.set_gain(gain)
-
- def set_decim(self, decim):
- ok = self.u.set_decim_rate(decim)
- if not ok:
- print "set_decim failed"
- input_rate = self.u.adc_freq() / self.u.decim_rate()
- self.scope.set_sample_rate(input_rate)
- if self.show_debug_info: # update displayed values
- self.myform['decim'].set_value(self.u.decim_rate())
- self.myform['fs@usb'].set_value(self.u.adc_freq() / self.u.decim_rate())
- return ok
-
-def main ():
- app = stdgui.stdapp(app_flow_graph, "USRP O'scope", nstatus=1)
- app.MainLoop()
-
-if __name__ == '__main__':
- main ()
+++ /dev/null
-#!/usr/bin/env python
-
-"""
-Read samples from the USRP and write to file formatted as binary
-outputs single precision complex float values or complex short values (interleaved 16 bit signed short integers).
-
-"""
-
-from gnuradio import gr, eng_notation
-from gnuradio import audio
-from gnuradio import usrp
-from gnuradio.eng_option import eng_option
-from optparse import OptionParser
-
-class my_graph(gr.flow_graph):
-
- def __init__(self):
- gr.flow_graph.__init__(self)
-
- usage="%prog: [options] output_filename"
- parser = OptionParser(option_class=eng_option, usage=usage)
- parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=(0, 0),
- help="select USRP Rx side A or B (default=A)")
- parser.add_option("-d", "--decim", type="int", default=16,
- help="set fgpa decimation rate to DECIM [default=%default]")
- parser.add_option("-f", "--freq", type="eng_float", default=None,
- help="set frequency to FREQ", metavar="FREQ")
- parser.add_option("-g", "--gain", type="eng_float", default=None,
- help="set gain in dB (default is midpoint)")
- parser.add_option("-8", "--width-8", action="store_true", default=False,
- help="Enable 8-bit samples across USB")
- parser.add_option( "--no-hb", action="store_true", default=False,
- help="don't use halfband filter in usrp")
- parser.add_option( "-s","--output-shorts", action="store_true", default=False,
- help="output interleaved shorts in stead of complex floats")
- parser.add_option("-N", "--nsamples", type="eng_float", default=None,
- help="number of samples to collect [default=+inf]")
- (options, args) = parser.parse_args ()
- if len(args) != 1:
- parser.print_help()
- raise SystemExit, 1
- filename = args[0]
-
- if options.freq is None:
- parser.print_help()
- sys.stderr.write('You must specify the frequency with -f FREQ\n');
- raise SystemExit, 1
-
- # build the graph
- if options.no_hb or (options.decim<8):
- self.fpga_filename="std_4rx_0tx.rbf" #Min decimation of this firmware is 4. contains 4 Rx paths without halfbands and 0 tx paths.
- if options.output_shorts:
- self.u = usrp.source_s(decim_rate=options.decim,fpga_filename=self.fpga_filename)
- else:
- self.u = usrp.source_c(decim_rate=options.decim,fpga_filename=self.fpga_filename)
- else:
- #standard fpga firmware "std_2rxhb_2tx.rbf" contains 2 Rx paths with halfband filters and 2 tx paths (the default) min decimation 8
- if options.output_shorts:
- self.u = usrp.source_s(decim_rate=options.decim)
- else:
- self.u = usrp.source_c(decim_rate=options.decim)
- if options.width_8:
- sample_width = 8
- sample_shift = 8
- format = self.u.make_format(sample_width, sample_shift)
- r = self.u.set_format(format)
- if options.output_shorts:
- self.dst = gr.file_sink(gr.sizeof_short, filename)
- else:
- self.dst = gr.file_sink(gr.sizeof_gr_complex, filename)
- if options.nsamples is None:
- self.connect(self.u, self.dst)
- else:
- if options.output_shorts:
- self.head = gr.head(gr.sizeof_short, int(options.nsamples)*2)
- else:
- self.head = gr.head(gr.sizeof_gr_complex, int(options.nsamples))
- self.connect(self.u, self.head, self.dst)
-
- if options.rx_subdev_spec is None:
- options.rx_subdev_spec = usrp.pick_rx_subdevice(self.u)
- self.u.set_mux(usrp.determine_rx_mux_value(self.u, options.rx_subdev_spec))
-
- # determine the daughterboard subdevice we're using
- self.subdev = usrp.selected_subdev(self.u, options.rx_subdev_spec)
- print "Using RX d'board %s" % (self.subdev.side_and_name(),)
- input_rate = self.u.adc_freq() / self.u.decim_rate()
- print "USB sample rate %s" % (eng_notation.num_to_str(input_rate))
-
- if options.gain is None:
- # if no gain was specified, use the mid-point in dB
- g = self.subdev.gain_range()
- options.gain = float(g[0]+g[1])/2
-
- self.subdev.set_gain(options.gain)
-
- r = self.u.tune(0, self.subdev, options.freq)
- if not r:
- sys.stderr.write('Failed to set frequency\n')
- raise SystemExit, 1
-
-
-if __name__ == '__main__':
- try:
- my_graph().run()
- except KeyboardInterrupt:
- pass
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr, gru, usrp, optfir, audio, eng_notation, blks
-from gnuradio.eng_option import eng_option
-from optparse import OptionParser
-
-"""
-This example application demonstrates receiving and demodulating
-different types of signals using the USRP.
-
-A receive chain is built up of the following signal processing
-blocks:
-
-USRP - Daughter board source generating complex baseband signal.
-CHAN - Low pass filter to select channel bandwidth
-RFSQL - RF squelch zeroing output when input power below threshold
-AGC - Automatic gain control leveling signal at [-1.0, +1.0]
-DEMOD - Demodulation block appropriate to selected signal type.
- This converts the complex baseband to real audio frequencies,
- and applies an appropriate low pass decimating filter.
-CTCSS - Optional tone squelch zeroing output when tone is not present.
-RSAMP - Resampler block to convert audio sample rate to user specified
- sound card output rate.
-AUDIO - Audio sink for playing final output to speakers.
-
-The following are required command line parameters:
-
--f FREQ USRP receive frequency
--m MOD Modulation type, select from AM, FM, or WFM
-
-The following are optional command line parameters:
-
--R SUBDEV Daughter board specification, defaults to first found
--c FREQ Calibration offset. Gets added to receive frequency.
- Defaults to 0.0 Hz.
--g GAIN Daughterboard gain setting. Defaults to mid-range.
--o RATE Sound card output rate. Defaults to 32000. Useful if
- your sound card only accepts particular sample rates.
--r RFSQL RF squelch in db. Defaults to -50.0.
--p FREQ CTCSS frequency. Opens squelch when tone is present.
-
-Once the program is running, ctrl-break (Ctrl-C) stops operation.
-
-Please see fm_demod.py and am_demod.py for details of the demodulation
-blocks.
-"""
-
-# (usrp_decim, channel_decim, audio_decim, channel_pass, channel_stop, demod)
-demod_params = {
- 'AM' : (250, 16, 1, 5000, 8000, blks.demod_10k0a3e_cf),
- 'FM' : (250, 8, 4, 8000, 9000, blks.demod_20k0f3e_cf),
- 'WFM' : (250, 1, 8, 90000, 100000, blks.demod_200kf3e_cf)
- }
-
-class usrp_source_c(gr.hier_block):
- """
- Create a USRP source object supplying complex floats.
-
- Selects user supplied subdevice or chooses first available one.
-
- Calibration value is the offset from the tuned frequency to
- the actual frequency.
- """
- def __init__(self, fg, subdev_spec, decim, gain=None, calibration=0.0):
- self._decim = decim
- self._src = usrp.source_c()
- if subdev_spec is None:
- subdev_spec = usrp.pick_rx_subdevice(self._src)
- self._subdev = usrp.selected_subdev(self._src, subdev_spec)
- self._src.set_mux(usrp.determine_rx_mux_value(self._src, subdev_spec))
- self._src.set_decim_rate(self._decim)
-
- # If no gain specified, set to midrange
- if gain is None:
- g = self._subdev.gain_range()
- gain = (g[0]+g[1])/2.0
-
- self._subdev.set_gain(gain)
- self._cal = calibration
- gr.hier_block.__init__(self, fg, self._src, self._src)
-
- def tune(self, freq):
- result = usrp.tune(self._src, 0, self._subdev, freq+self._cal)
- # TODO: deal with residual
-
- def rate(self):
- return self._src.adc_rate()/self._decim
-
-class app_flow_graph(gr.flow_graph):
- def __init__(self, options, args):
- gr.flow_graph.__init__(self)
- self.options = options
- self.args = args
-
- (usrp_decim, channel_decim, audio_decim,
- channel_pass, channel_stop, demod) = demod_params[options.modulation]
-
- USRP = usrp_source_c(self, # Flow graph
- options.rx_subdev_spec, # Daugherboard spec
- usrp_decim, # IF decimation ratio
- options.gain, # Receiver gain
- options.calibration) # Frequency offset
- USRP.tune(options.frequency)
-
- if_rate = USRP.rate()
- channel_rate = if_rate // channel_decim
- audio_rate = channel_rate // audio_decim
-
- CHAN_taps = optfir.low_pass(1.0, # Filter gain
- if_rate, # Sample rate
- channel_pass, # One sided modulation bandwidth
- channel_stop, # One sided channel bandwidth
- 0.1, # Passband ripple
- 60) # Stopband attenuation
-
- CHAN = gr.freq_xlating_fir_filter_ccf(channel_decim, # Decimation rate
- CHAN_taps, # Filter taps
- 0.0, # Offset frequency
- if_rate) # Sample rate
-
- RFSQL = gr.pwr_squelch_cc(options.rf_squelch, # Power threshold
- 125.0/channel_rate, # Time constant
- channel_rate/20, # 50ms rise/fall
- False) # Zero, not gate output
-
- AGC = gr.agc_cc(1.0/channel_rate, # Time constant
- 1.0, # Reference power
- 1.0, # Initial gain
- 1.0) # Maximum gain
-
- DEMOD = demod(self, channel_rate, audio_decim)
-
- # From RF to audio
- self.connect(USRP, CHAN, RFSQL, AGC, DEMOD)
-
- # Optionally add CTCSS and RSAMP if needed
- tail = DEMOD
- if options.ctcss != None and options.ctcss > 60.0:
- CTCSS = gr.ctcss_squelch_ff(audio_rate, # Sample rate
- options.ctcss) # Squelch tone
- self.connect(DEMOD, CTCSS)
- tail = CTCSS
-
- if options.output_rate != audio_rate:
- out_lcm = gru.lcm(audio_rate, options.output_rate)
- out_interp = int(out_lcm // audio_rate)
- out_decim = int(out_lcm // options.output_rate)
- RSAMP = blks.rational_resampler_fff(self, out_interp, out_decim)
- self.connect(tail, RSAMP)
- tail = RSAMP
-
- # Send to default audio output
- AUDIO = audio.sink(options.output_rate, "")
- self.connect(tail, AUDIO)
-
-def main():
- parser = OptionParser(option_class=eng_option)
- parser.add_option("-f", "--frequency", type="eng_float",
- help="set receive frequency to Hz", metavar="Hz")
- parser.add_option("-R", "--rx-subdev-spec", type="subdev",
- help="select USRP Rx side A or B", metavar="SUBDEV")
- parser.add_option("-c", "--calibration", type="eng_float", default=0.0,
- help="set frequency offset to Hz", metavar="Hz")
- parser.add_option("-g", "--gain", type="int", default=None,
- help="set RF gain", metavar="dB")
- parser.add_option("-m", "--modulation", type="choice", choices=('AM','FM','WFM'),
- help="set modulation type (AM,FM)", metavar="TYPE")
- parser.add_option("-o", "--output-rate", type="int", default=32000,
- help="set audio output rate to RATE", metavar="RATE")
- parser.add_option("-r", "--rf-squelch", type="eng_float", default=-50.0,
- help="set RF squelch to dB", metavar="dB")
- parser.add_option("-p", "--ctcss", type="float",
- help="set CTCSS squelch to FREQ", metavar="FREQ")
- (options, args) = parser.parse_args()
-
- if options.frequency < 1e6:
- options.frequency *= 1e6
-
- fg = app_flow_graph(options, args)
- try:
- fg.run()
- except KeyboardInterrupt:
- pass
-
-if __name__ == "__main__":
- main()
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr, gru
-from gnuradio import usrp
-from gnuradio.eng_option import eng_option
-from gnuradio import eng_notation
-from optparse import OptionParser
-import sys
-
-
-class my_graph(gr.flow_graph):
- def __init__ (self):
- gr.flow_graph.__init__(self)
-
- # controllable values
- self.interp = 64
- self.waveform_type = gr.GR_SIN_WAVE
- self.waveform_ampl = 16000
- self.waveform_freq = 100.12345e3
- self.waveform_offset = 0
- self._instantiate_blocks ()
- self.set_waveform_type (self.waveform_type)
-
- def usb_freq (self):
- return self.u.dac_freq() / self.interp
-
- def usb_throughput (self):
- return self.usb_freq () * 4
-
- def set_waveform_type (self, type):
- '''
- valid waveform types are: gr.GR_SIN_WAVE, gr.GR_CONST_WAVE,
- gr.GR_UNIFORM and gr.GR_GAUSSIAN
- '''
- self._configure_graph (type)
- self.waveform_type = type
-
- def set_waveform_ampl (self, ampl):
- self.waveform_ampl = ampl
- self.siggen.set_amplitude (ampl)
- self.noisegen.set_amplitude (ampl)
-
- def set_waveform_freq (self, freq):
- self.waveform_freq = freq
- self.siggen.set_frequency (freq)
-
- def set_waveform_offset (self, offset):
- self.waveform_offset = offset
- self.siggen.set_offset (offset)
-
- def set_interpolator (self, interp):
- self.interp = interp
- self.siggen.set_sampling_freq (self.usb_freq ())
- self.u.set_interp_rate (interp)
-
- def _instantiate_blocks (self):
- self.src = None
- self.u = usrp.sink_c (0, self.interp)
-
- self.siggen = gr.sig_source_c (self.usb_freq (),
- gr.GR_SIN_WAVE,
- self.waveform_freq,
- self.waveform_ampl,
- self.waveform_offset)
-
- self.noisegen = gr.noise_source_c (gr.GR_UNIFORM,
- self.waveform_ampl)
-
- # self.file_sink = gr.file_sink (gr.sizeof_gr_complex, "siggen.dat")
-
- def _configure_graph (self, type):
- was_running = self.is_running ()
- if was_running:
- self.stop ()
- self.disconnect_all ()
- if type == gr.GR_SIN_WAVE or type == gr.GR_CONST_WAVE:
- self.connect (self.siggen, self.u)
- # self.connect (self.siggen, self.file_sink)
- self.siggen.set_waveform (type)
- self.src = self.siggen
- elif type == gr.GR_UNIFORM or type == gr.GR_GAUSSIAN:
- self.connect (self.noisegen, self.u)
- self.noisegen.set_type (type)
- self.src = self.noisegen
- else:
- raise ValueError, type
- if was_running:
- self.start ()
-
- def set_freq(self, target_freq):
- """
- Set the center frequency we're interested in.
-
- @param target_freq: frequency in Hz
- @rypte: bool
-
- Tuning is a two step process. First we ask the front-end to
- tune as close to the desired frequency as it can. Then we use
- the result of that operation and our target_frequency to
- determine the value for the digital up converter.
- """
- r = self.u.tune(self.subdev._which, self.subdev, target_freq)
- if r:
- #print "r.baseband_freq =", eng_notation.num_to_str(r.baseband_freq)
- #print "r.dxc_freq =", eng_notation.num_to_str(r.dxc_freq)
- #print "r.residual_freq =", eng_notation.num_to_str(r.residual_freq)
- #print "r.inverted =", r.inverted
- return True
-
- return False
-
-
-
-def main ():
- parser = OptionParser (option_class=eng_option)
- parser.add_option ("-T", "--tx-subdev-spec", type="subdev", default=(0, 0),
- help="select USRP Tx side A or B")
- parser.add_option ("-f", "--rf-freq", type="eng_float", default=None,
- help="set RF center frequency to FREQ")
- parser.add_option ("-i", "--interp", type="int", default=64,
- help="set fgpa interpolation rate to INTERP [default=%default]")
-
- parser.add_option ("--sine", dest="type", action="store_const", const=gr.GR_SIN_WAVE,
- help="generate a complex sinusoid [default]", default=gr.GR_SIN_WAVE)
- parser.add_option ("--const", dest="type", action="store_const", const=gr.GR_CONST_WAVE,
- help="generate a constant output")
- parser.add_option ("--gaussian", dest="type", action="store_const", const=gr.GR_GAUSSIAN,
- help="generate Gaussian random output")
- parser.add_option ("--uniform", dest="type", action="store_const", const=gr.GR_UNIFORM,
- help="generate Uniform random output")
-
- parser.add_option ("-w", "--waveform-freq", type="eng_float", default=100e3,
- help="set waveform frequency to FREQ [default=%default]")
- parser.add_option ("-a", "--amplitude", type="eng_float", default=16e3,
- help="set waveform amplitude to AMPLITUDE [default=%default]", metavar="AMPL")
- parser.add_option ("-o", "--offset", type="eng_float", default=0,
- help="set waveform offset to OFFSET [default=%default]")
- (options, args) = parser.parse_args ()
-
- if len(args) != 0:
- parser.print_help()
- raise SystemExit
-
- if options.rf_freq is None:
- sys.stderr.write("usrp_siggen: must specify RF center frequency with -f RF_FREQ\n")
- parser.print_help()
- raise SystemExit
-
- fg = my_graph()
- fg.set_interpolator (options.interp)
- fg.set_waveform_type (options.type)
- fg.set_waveform_freq (options.waveform_freq)
- fg.set_waveform_ampl (options.amplitude)
- fg.set_waveform_offset (options.offset)
-
- # determine the daughterboard subdevice we're using
- if options.tx_subdev_spec is None:
- options.tx_subdev_spec = usrp.pick_tx_subdevice(fg.u)
-
- m = usrp.determine_tx_mux_value(fg.u, options.tx_subdev_spec)
- #print "mux = %#04x" % (m,)
- fg.u.set_mux(m)
- fg.subdev = usrp.selected_subdev(fg.u, options.tx_subdev_spec)
- print "Using TX d'board %s" % (fg.subdev.side_and_name(),)
-
- fg.subdev.set_gain(fg.subdev.gain_range()[1]) # set max Tx gain
-
- if not fg.set_freq(options.rf_freq):
- sys.stderr.write('Failed to set RF frequency\n')
- raise SystemExit
-
- fg.subdev.set_enable(True) # enable transmitter
-
- try:
- fg.run()
- except KeyboardInterrupt:
- pass
-
-if __name__ == '__main__':
- main ()
include $(top_srcdir)/Makefile.common
-EXTRA_DIST = run_tests.in
+EXAMPLE_FILES = \
+ README \
+ btl-fsd.py \
+ fpll.py \
+ interp.py \
+ xlate.py \
+ viterbi-out.py
+
+
+EXTRA_DIST = run_tests.in \
+ $(EXAMPLE_FILES)
+
+ourdatadir = $(exampledir)/atsc
+ourdata_DATA = $(EXAMPLE_FILES)
TESTS = \
noinst_PYTHON = \
atsc_utils.py \
qa_atsc.py
+
+# Make example scripts with #! executable
+install-data-local:
+ for i in `find $(ourdatadir) -type f ! -perm 755`; do \
+ if head -1 $$i | grep -q '^#!'; then \
+ chmod 755 $$i; \
+ echo "made executable: $$i"; \
+ fi; \
+ done
# Boston, MA 02110-1301, USA.
#
-SUBDIRS = lib python
+SUBDIRS = lib python examples
--- /dev/null
+#
+# Copyright 2004 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+include $(top_srcdir)/Makefile.common
+
+SUBDIRS = fsm_files
+
+EXTRA_DIST = \
+ README \
+ fsm_utils.py \
+ test_tcm.py \
+ test_tcm1.py \
+ test_tcm2.py \
+ test_tcm_parallel.py \
+ test_tcm_combined.py \
+ test_sccc_hard.py \
+ test_sccc_soft.py \
+ test_sccc_turbo.py \
+ test_viterbi_equalization1.py \
+ test_viterbi_equalization.py \
+ test_turbo_equalization.py \
+ test_turbo_equalization1.py \
+ test_turbo_equalization2.py
+
+
+ourdatadir = $(exampledir)/trellis
+ourdata_DATA = $(EXTRA_DIST)
+
+# Make example scripts with #! executable
+install-data-local:
+ for i in `find $(ourdatadir) -type f ! -perm 755`; do \
+ if head -1 $$i | grep -q '^#!'; then \
+ chmod 755 $$i; \
+ echo "made executable: $$i"; \
+ fi; \
+ done
+
+MOSTLYCLEANFILES = *.pyc
--- /dev/null
+Here we have several test programs for use with the gr-trellis implementation.
+Documentation can be found in
+http://gnuradio.utah.edu/svn/gnuradio/trunk/gr-trellis/doc/gr-trellis.html
+
+fsm_utils.py contains several useful functions.
+
+fsm_files is a directory with some FSM definitions
+
+If you just want to see what these programs do, run each of the following:
+
+./test_tcm.py fsm_files/awgn1o2_4.fsm 6.0 1000
+./test_tcm1.py fsm_files/awgn1o2_4.fsm 6.0 1000
+./test_tcm2.py 6.0 1000
+./test_tcm_combined.py fsm_files/awgn1o2_4.fsm 6.0 1000
+./test_tcm_parallel.py fsm_files/awgn1o2_4.fsm 6.0 1000
+
+./test_sccc_hard.py fsm_files/awgn1o2_4.fsm fsm_files/awgn2o3_4_msb.fsm 10.0 100
+./test_sccc_soft.py fsm_files/awgn1o2_4.fsm fsm_files/awgn2o3_4_msb.fsm 8.0 100
+./test_sccc_turbo.py fsm_files/awgn1o2_4.fsm fsm_files/awgn2o3_4_msb.fsm 5.0 100
+
+./test_viterbi_equalization.py 12.0 100
+./test_viterbi_equalization1.py 12.0 100
+./test_turbo_equalization1.py fsm_files/awgn1o2_4.fsm 8.0 100
+./test_turbo_equalization2.py fsm_files/awgn1o2_4.fsm 8.0 100
+
+
+In your terminal you will see something like this:
+
+
+$ ./test_tcm.py fsm_files/awgn1o2_4.fsm 6.0 1000
+100 98 9.80e-01 102400 9 8.79e-05
+200 198 9.90e-01 204800 20 9.77e-05
+300 298 9.93e-01 307200 40 1.30e-04
+400 398 9.95e-01 409600 1074 2.62e-03
+500 498 9.96e-01 512000 1081 2.11e-03
+600 598 9.97e-01 614400 1090 1.77e-03
+700 698 9.97e-01 716800 1097 1.53e-03
+800 798 9.98e-01 819200 1107 1.35e-03
+900 898 9.98e-01 921600 1120 1.22e-03
+1000 998 9.98e-01 1024000 1129 1.10e-03
+1000 998 9.98e-01 1024000 1129 1.10e-03
+
+which gives you information about the:
+number of transmitted packets
+number of packets in error
+estimated packet error rate
+number of transmitted shorts (or symbols, or bits, depending on the specific program)
+number of shorts (or symbols, or bits) in error
+estimated short (or symbol, or bit) error rate
+
+for instance, the final number 1.10e-03 is the error rate estimate by sending 1000
+packets of 1024 shorts each, using an 1/2 4-state convolutional code
+and QPSK modulation through an AWGN with Es/N0 = 6.0 dB
--- /dev/null
+#
+# Copyright 2004 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+include $(top_srcdir)/Makefile.common
+
+EXTRA_DIST = \
+ awgn1o2_128.fsm \
+ awgn1o2_16.fsm \
+ awgn1o2_4.fsm \
+ awgn1o2_8.fsm \
+ awgn2o3_16.fsm \
+ awgn2o3_4.fsm \
+ awgn2o3_4_msb.fsm \
+ awgn2o3_4_msbG.fsm \
+ awgn2o3_8.fsm \
+ awgn2o4_4.fsm \
+ disconnected.fsm \
+ rep3.fsm \
+ rep5.fsm \
+ simple.fsm
+
+ourdatadir = $(exampledir)/trellis/fsm_files
+ourdata_DATA = $(EXTRA_DIST)
--- /dev/null
+2 128 4
+
+0 64
+0 64
+1 65
+1 65
+2 66
+2 66
+3 67
+3 67
+4 68
+4 68
+5 69
+5 69
+6 70
+6 70
+7 71
+7 71
+8 72
+8 72
+9 73
+9 73
+10 74
+10 74
+11 75
+11 75
+12 76
+12 76
+13 77
+13 77
+14 78
+14 78
+15 79
+15 79
+16 80
+16 80
+17 81
+17 81
+18 82
+18 82
+19 83
+19 83
+20 84
+20 84
+21 85
+21 85
+22 86
+22 86
+23 87
+23 87
+24 88
+24 88
+25 89
+25 89
+26 90
+26 90
+27 91
+27 91
+28 92
+28 92
+29 93
+29 93
+30 94
+30 94
+31 95
+31 95
+32 96
+32 96
+33 97
+33 97
+34 98
+34 98
+35 99
+35 99
+36 100
+36 100
+37 101
+37 101
+38 102
+38 102
+39 103
+39 103
+40 104
+40 104
+41 105
+41 105
+42 106
+42 106
+43 107
+43 107
+44 108
+44 108
+45 109
+45 109
+46 110
+46 110
+47 111
+47 111
+48 112
+48 112
+49 113
+49 113
+50 114
+50 114
+51 115
+51 115
+52 116
+52 116
+53 117
+53 117
+54 118
+54 118
+55 119
+55 119
+56 120
+56 120
+57 121
+57 121
+58 122
+58 122
+59 123
+59 123
+60 124
+60 124
+61 125
+61 125
+62 126
+62 126
+63 127
+63 127
+
+0 3
+3 0
+1 2
+2 1
+3 0
+0 3
+2 1
+1 2
+1 2
+2 1
+0 3
+3 0
+2 1
+1 2
+3 0
+0 3
+1 2
+2 1
+0 3
+3 0
+2 1
+1 2
+3 0
+0 3
+0 3
+3 0
+1 2
+2 1
+3 0
+0 3
+2 1
+1 2
+2 1
+1 2
+3 0
+0 3
+1 2
+2 1
+0 3
+3 0
+3 0
+0 3
+2 1
+1 2
+0 3
+3 0
+1 2
+2 1
+3 0
+0 3
+2 1
+1 2
+0 3
+3 0
+1 2
+2 1
+2 1
+1 2
+3 0
+0 3
+1 2
+2 1
+0 3
+3 0
+2 1
+1 2
+3 0
+0 3
+1 2
+2 1
+0 3
+3 0
+3 0
+0 3
+2 1
+1 2
+0 3
+3 0
+1 2
+2 1
+3 0
+0 3
+2 1
+1 2
+0 3
+3 0
+1 2
+2 1
+2 1
+1 2
+3 0
+0 3
+1 2
+2 1
+0 3
+3 0
+0 3
+3 0
+1 2
+2 1
+3 0
+0 3
+2 1
+1 2
+1 2
+2 1
+0 3
+3 0
+2 1
+1 2
+3 0
+0 3
+1 2
+2 1
+0 3
+3 0
+2 1
+1 2
+3 0
+0 3
+0 3
+3 0
+1 2
+2 1
+3 0
+0 3
+2 1
+1 2
+
+
+
+GM1o2_128=[1+D+D^2+D^5+D^7 1+D^3+D^4+D^5+D^6+D^7]
+ =[11100101 10011111]
+ =[229 159]
--- /dev/null
+2 16 4
+
+0 8
+0 8
+1 9
+1 9
+2 10
+2 10
+3 11
+3 11
+4 12
+4 12
+5 13
+5 13
+6 14
+6 14
+7 15
+7 15
+
+0 3
+3 0
+1 2
+2 1
+1 2
+2 1
+0 3
+3 0
+2 1
+1 2
+3 0
+0 3
+3 0
+0 3
+2 1
+1 2
+
+
+
+GM1o2_16=[1+D+D^4 1+D^2+D^3+D^4 ] = [25,23] (decimal)
--- /dev/null
+2 4 4
+
+0 2
+0 2
+1 3
+1 3
+
+0 3
+3 0
+1 2
+2 1
+
+AWGN CC from Proakis-Salehi pg 779
+GM1o2_4=[1+D^2, 1+D+D^2] = [5, 7] (in decimal);
--- /dev/null
+2 8 4
+
+0 4
+0 4
+1 5
+1 5
+2 6
+2 6
+3 7
+3 7
+
+
+0 3
+3 0
+1 2
+2 1
+3 0
+0 3
+2 1
+1 2
+
+
+1/2 8-state code (Proakis pg. 493)
+GM1o2_8=[ 1+D+D^3 1+D+D^2+D^3] =[13 , 15] (decimal)
--- /dev/null
+4 16 8
+
+0 8 4 12
+0 8 4 12
+0 8 4 12
+0 8 4 12
+1 9 5 13
+1 9 5 13
+1 9 5 13
+1 9 5 13
+2 10 6 14
+2 10 6 14
+2 10 6 14
+2 10 6 14
+3 11 7 15
+3 11 7 15
+3 11 7 15
+3 11 7 15
+
+0 1 7 6
+6 7 1 0
+3 2 4 5
+5 4 2 3
+2 3 5 4
+4 5 3 2
+1 0 6 7
+7 6 0 1
+4 5 3 2
+2 3 5 4
+7 6 0 1
+1 0 6 7
+6 7 1 0
+0 1 7 6
+5 4 2 3
+3 2 4 5
+
+
+2/3 code generated from the awgn 1/2 code with 16 states and puncturing the 4th bit.
+d_free=
+
--- /dev/null
+4 4 8
+
+0 1 2 3
+0 1 2 3
+0 1 2 3
+0 1 2 3
+
+0 7 4 3
+3 4 7 0
+5 2 1 6
+6 1 2 5
+
+I don't remeber how I generated this one...
+it is a bit better than awgn2o3_4_msb and worse
+than awgn2o3_4_msbG.
--- /dev/null
+4 4 8
+
+0 1 2 3
+0 1 2 3
+0 1 2 3
+0 1 2 3
+
+0 5 3 6
+4 1 7 2
+7 2 4 1
+3 6 0 5
+
+
+This is generated by the 1/2 AWGN code (5 7) operated twice, ie,
+(xk+1 xki) [xk-1 xk-2] -> [xk+1 xki].
+We also puncture the first (MSB) bit.
+This code is worse than awgn2o3_4_msbG and slightly worse than
+awgn2o3_4, BUT seems to be a good innner code for sctcm (with 8PSK natural).
+
+intermediate states:
+
+00 21 02 23
+00 21 02 23
+10 31 12 33
+10 31 12 33
+
+output before puncturing:
+
+00 31 03 32
+30 01 33 02
+13 22 10 21
+23 12 20 11
+
+output after punturing the MSB:
+
+00 11 03 12
+10 01 13 02
+13 02 10 01
+03 12 00 11
+
+and in decimal:
+
+0 5 3 6
+4 1 7 2
+7 2 4 1
+3 6 0 5
--- /dev/null
+4 4 8
+
+0 1 2 3
+0 1 2 3
+0 1 2 3
+0 1 2 3
+
+0 4 2 6
+5 1 3 7
+3 7 5 1
+
+
+This is generated by the 1/2 AWGN code (5 7) operated twice, ie,
+(xk+1 xki) [xk-1 xk-2] -> [xk+1 xki].
+We also puncture the first (MSB) bit and Gray map the symbols.
+
+intermediate states:
+
+00 21 02 23
+00 21 02 23
+10 31 12 33
+10 31 12 33
+
+output before puncturing:
+
+00 31 03 32
+30 01 33 02
+13 22 10 21
+23 12 20 11
+
+output after punturing the MSB:
+
+00 11 03 12
+10 01 13 02
+13 02 10 01
+03 12 00 11
+
+and in decimal:
+
+0 5 3 6
+4 1 7 2
+7 2 4 1
+3 6 0 5
+
+After Gray mapping:
+label -> phase
+0 -> 0
+1 -> 0
+2 -> 7
+3 -> 2
+4 -> 5
+5 -> 4
+6 -> 6
+7 -> 3
+
+0 4 2 6
+5 1 3 7
+3 7 5 1
+2 6 0 4
+
--- /dev/null
+4 8 8
+
+0 4 2 6
+0 4 2 6
+0 4 2 6
+0 4 2 6
+1 5 3 7
+1 5 3 7
+1 5 3 7
+1 5 3 7
+
+
+0 1 7 6
+6 7 1 0
+3 2 4 5
+5 4 2 3
+6 7 1 0
+0 1 7 6
+5 4 2 3
+3 2 4 5
+
+
+
+This is generated by the 1/2 8-state AWGN code (15 17) by puncturing the fourth bit.
+--> d_free=???
--- /dev/null
+4 4 16
+
+0 1 2 3
+0 1 2 3
+0 1 2 3
+0 1 2 3
+
+ 0 13 3 14
+12 1 15 2
+ 7 10 4 9
+11 6 8 5
+
+
+This is generated by the 1/2 AWGN code (5 7) operated twice, ie,
+(xk+1 xki) [xk-1 xk-2] -> [xk+1 xki].
+
+intermediate states:
+
+00 21 02 23
+00 21 02 23
+10 31 12 33
+10 31 12 33
+
+output:
+
+00 31 03 32
+30 01 33 02
+13 22 10 21
+23 12 20 11
+
+and in decimal:
+
+ 0 13 3 14
+12 1 15 2
+ 7 10 4 9
+11 6 8 5
--- /dev/null
+1 4 1
+
+1
+0
+3
+2
+
+0
+0
+0
+0
--- /dev/null
+2 2 2
+
+0 0
+0 1
+
+0 1
+0 1
+
+
+useless irregular FSM for testing. state 0 has 3 incoming edges and state
+1 has 1 incoming edge.
--- /dev/null
+2 1 8
+
+0 0
+
+0 7
+
+1/3 repetition code (with binary input).
+There is only one state, since this is essentially a memoryless system.
--- /dev/null
+2 1 8
+
+0 0
+
+0 7
+
+1/3 repetiotion code
--- /dev/null
+1 4 1
+
+1
+2
+3
+0
+
+0
+0
+0
+0
+
+essentially this fsm has no inputs and no outputs; it ijust cycles through all 4 states.
--- /dev/null
+#!/usr/bin/env python
+#
+# Copyright 2004 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+
+import re
+import math
+import sys
+import operator
+
+from gnuradio import trellis
+
+
+
+######################################################################
+# Decimal to any base conversion.
+# Convert 'num' to a list of 'l' numbers representing 'num'
+# to base 'base' (most significant symbol first).
+######################################################################
+def dec2base(num,base,l):
+ s=range(l)
+ n=num
+ for i in range(l):
+ s[l-i-1]=n%base
+ n=int(n/base)
+ if n!=0:
+ print 'Number ', num, ' requires more than ', l, 'digits.'
+ return s
+
+
+######################################################################
+# Conversion from any base to decimal.
+# Convert a list 's' of symbols to a decimal number
+# (most significant symbol first)
+######################################################################
+def base2dec(s,base):
+ num=0
+ for i in range(len(s)):
+ num=num*base+s[i]
+ return num
+
+
+######################################################################
+# Generate a new FSM representing the concatenation of two FSMs
+######################################################################
+def fsm_concatenate(f1,f2):
+ if f1.O() > f2.I():
+ print "Not compatible FSMs\n"
+ I=f1.I()
+ S=f1.S()*f2.S()
+ O=f2.O()
+ nsm=list([0]*I*S)
+ osm=list([0]*I*S)
+ for s1 in range(f1.S()):
+ for s2 in range(f2.S()):
+ for i in range(f1.I()):
+ ns1=f1.NS()[s1*f1.I()+i]
+ o1=f1.OS()[s1*f1.I()+i]
+ ns2=f2.NS()[s2*f2.I()+o1]
+ o2=f2.OS()[s2*f2.I()+o1]
+
+ s=s1*f2.S()+s2
+ ns=ns1*f2.S()+ns2
+ nsm[s*I+i]=ns
+ osm[s*I+i]=o2
+
+
+ f=trellis.fsm(I,S,O,nsm,osm)
+ return f
+
+######################################################################
+# Generate a new FSM representing n stages through the original FSM
+######################################################################
+def fsm_radix(f,n):
+ I=f.I()**n
+ S=f.S()
+ O=f.O()**n
+ nsm=list([0]*I*S)
+ osm=list([0]*I*S)
+ for s in range(f.S()):
+ for i in range(I):
+ ii=dec2base(i,f.I(),n)
+ oo=list([0]*n)
+ ns=s
+ for k in range(n):
+ oo[k]=f.OS()[ns*f.I()+ii[k]]
+ ns=f.NS()[ns*f.I()+ii[k]]
+
+ nsm[s*I+i]=ns
+ osm[s*I+i]=base2dec(oo,f.O())
+
+
+ f=trellis.fsm(I,S,O,nsm,osm)
+ return f
+
+
+
+
+######################################################################
+# Automatically generate the lookup table that maps the FSM outputs
+# to channel inputs corresponding to a channel 'channel' and a modulation
+# 'mod'. Optional normalization of channel to unit energy.
+# This table is used by the 'metrics' block to translate
+# channel outputs to metrics for use with the Viterbi algorithm.
+# Limitations: currently supports only one-dimensional modulations.
+######################################################################
+def make_isi_lookup(mod,channel,normalize):
+ dim=mod[0]
+ constellation = mod[1]
+
+ if normalize:
+ p = 0
+ for i in range(len(channel)):
+ p = p + channel[i]**2
+ for i in range(len(channel)):
+ channel[i] = channel[i]/math.sqrt(p)
+
+ lookup=range(len(constellation)**len(channel))
+ for o in range(len(constellation)**len(channel)):
+ ss=dec2base(o,len(constellation),len(channel))
+ ll=0
+ for i in range(len(channel)):
+ ll=ll+constellation[ss[i]]*channel[i]
+ lookup[o]=ll
+ return (1,lookup)
+
+
+
+
+
+
+######################################################################
+# A list of common modulations.
+# Format: (dimensionality,constellation)
+######################################################################
+pam2 = (1,[-1, 1])
+pam4 = (1,[-3, -1, 3, 1]) # includes Gray mapping
+pam8 = (1,[-7, -5, -3, -1, 1, 3, 5, 7])
+
+psk4=(2,[1, 0, \
+ 0, 1, \
+ 0, -1,\
+ -1, 0]) # includes Gray mapping
+psk8=(2,[math.cos(2*math.pi*0/8), math.sin(2*math.pi*0/8), \
+ math.cos(2*math.pi*1/8), math.sin(2*math.pi*1/8), \
+ math.cos(2*math.pi*2/8), math.sin(2*math.pi*2/8), \
+ math.cos(2*math.pi*3/8), math.sin(2*math.pi*3/8), \
+ math.cos(2*math.pi*4/8), math.sin(2*math.pi*4/8), \
+ math.cos(2*math.pi*5/8), math.sin(2*math.pi*5/8), \
+ math.cos(2*math.pi*6/8), math.sin(2*math.pi*6/8), \
+ math.cos(2*math.pi*7/8), math.sin(2*math.pi*7/8)])
+
+orth2 = (2,[1, 0, \
+ 0, 1])
+orth4=(4,[1, 0, 0, 0, \
+ 0, 1, 0, 0, \
+ 0, 0, 1, 0, \
+ 0, 0, 0, 1])
+
+######################################################################
+# A list of channels to be tested
+######################################################################
+
+# C test channel (J. Proakis, Digital Communications, McGraw-Hill Inc., 2001)
+c_channel = [0.227, 0.460, 0.688, 0.460, 0.227]
+
+
+
+
+
+
+
+
+
+
+if __name__ == '__main__':
+ f1=trellis.fsm('fsm_files/awgn1o2_4.fsm')
+ #f2=trellis.fsm('fsm_files/awgn2o3_4.fsm')
+ print f1.I(), f1.S(), f1.O()
+ print f1.NS()
+ print f1.OS()
+ #print f2.I(), f2.S(), f2.O()
+ #print f2.NS()
+ #print f2.OS()
+ ##f1.write_trellis_svg('f1.svg',4)
+ #f2.write_trellis_svg('f2.svg',4)
+ #f=fsm_concatenate(f1,f2)
+ f=fsm_radix(f1,2)
+
+ print "----------\n"
+ print f.I(), f.S(), f.O()
+ print f.NS()
+ print f.OS()
+ #f.write_trellis_svg('f.svg',4)
+
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr
+from gnuradio import audio
+from gnuradio import trellis
+from gnuradio import eng_notation
+import math
+import sys
+import random
+import fsm_utils
+
+def run_test (fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed):
+ fg = gr.flow_graph ()
+
+
+ # TX
+ src = gr.lfsr_32k_source_s()
+ src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
+ s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the outer FSM input cardinality
+ enc_out = trellis.encoder_ss(fo,0) # initial state = 0
+ inter = trellis.permutation(interleaver.K(),interleaver.INTER(),1,gr.sizeof_short)
+ enc_in = trellis.encoder_ss(fi,0) # initial state = 0
+ mod = gr.chunks_to_symbols_sf(constellation,dimensionality)
+
+ # CHANNEL
+ add = gr.add_ff()
+ noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
+
+ # RX
+ metrics_in = trellis.metrics_f(fi.O(),dimensionality,constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for innner Viterbi
+ va_in = trellis.viterbi_s(fi,K,0,-1) # Put -1 if the Initial/Final states are not set.
+ deinter = trellis.permutation(interleaver.K(),interleaver.DEINTER(),1,gr.sizeof_short)
+ metrics_out = trellis.metrics_s(fo.O(),1,[0,1,2,3],trellis.TRELLIS_HARD_SYMBOL) # data preprocessing to generate metrics for outer Viterbi (hard decisions)
+ va_out = trellis.viterbi_s(fo,K,0,-1) # Put -1 if the Initial/Final states are not set.
+ fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
+ dst = gr.check_lfsr_32k_s()
+
+ fg.connect (src,src_head,s2fsmi,enc_out,inter,enc_in,mod)
+ fg.connect (mod,(add,0))
+ fg.connect (noise,(add,1))
+ fg.connect (add,metrics_in)
+ fg.connect (metrics_in,va_in,deinter,metrics_out,va_out,fsmi2s,dst)
+
+ fg.run()
+
+ ntotal = dst.ntotal ()
+ nright = dst.nright ()
+ runlength = dst.runlength ()
+ return (ntotal,ntotal-nright)
+
+
+def main(args):
+ nargs = len (args)
+ if nargs == 4:
+ fname_out=args[0]
+ fname_in=args[1]
+ esn0_db=float(args[2]) # Es/No in dB
+ rep=int(args[3]) # number of times the experiment is run to collect enough errors
+ else:
+ sys.stderr.write ('usage: test_tcm.py fsm_name_out fsm_fname_in Es/No_db repetitions\n')
+ sys.exit (1)
+
+ # system parameters
+ Kb=1024*16 # packet size in bits (make it multiple of 16 so it can be packed in a short)
+ fo=trellis.fsm(fname_out) # get the outer FSM specification from a file
+ fi=trellis.fsm(fname_in) # get the innner FSM specification from a file
+ bitspersymbol = int(round(math.log(fo.I())/math.log(2))) # bits per FSM input symbol
+ if fo.O() != fi.I():
+ sys.stderr.write ('Incompatible cardinality between outer and inner FSM.\n')
+ sys.exit (1)
+ K=Kb/bitspersymbol # packet size in trellis steps
+ interleaver=trellis.interleaver(K,666) # construct a random interleaver
+ modulation = fsm_utils.psk8 # see fsm_utlis.py for available predefined modulations
+ dimensionality = modulation[0]
+ constellation = modulation[1]
+ if len(constellation)/dimensionality != fi.O():
+ sys.stderr.write ('Incompatible FSM output cardinality and modulation size.\n')
+ sys.exit (1)
+ # calculate average symbol energy
+ Es = 0
+ for i in range(len(constellation)):
+ Es = Es + constellation[i]**2
+ Es = Es / (len(constellation)/dimensionality)
+ N0=Es/pow(10.0,esn0_db/10.0); # calculate noise variance
+
+ tot_s=0 # total number of transmitted shorts
+ terr_s=0 # total number of shorts in error
+ terr_p=0 # total number of packets in error
+ for i in range(rep):
+ (s,e)=run_test(fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,constellation,N0,-long(666+i)) # run experiment with different seed to get different noise realizations
+ tot_s=tot_s+s
+ terr_s=terr_s+e
+ terr_p=terr_p+(terr_s!=0)
+ if ((i+1)%100==0) : # display progress
+ print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+ # estimate of the (short or bit) error rate
+ print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+
+
+if __name__ == '__main__':
+ main (sys.argv[1:])
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr
+from gnuradio import audio
+from gnuradio import trellis
+from gnuradio import eng_notation
+import math
+import sys
+import random
+import fsm_utils
+
+
+
+
+def run_test (fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed):
+ fg = gr.flow_graph ()
+
+
+ # TX
+ src = gr.lfsr_32k_source_s()
+ src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
+ s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the outer FSM input cardinality
+ enc_out = trellis.encoder_ss(fo,0) # initial state = 0
+ inter = trellis.permutation(interleaver.K(),interleaver.INTER(),1,gr.sizeof_short)
+ enc_in = trellis.encoder_ss(fi,0) # initial state = 0
+ mod = gr.chunks_to_symbols_sf(constellation,dimensionality)
+
+ # CHANNEL
+ add = gr.add_ff()
+ noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
+
+ # RX
+ metrics_in = trellis.metrics_f(fi.O(),dimensionality,constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for innner Viterbi
+ gnd = gr.vector_source_f([0],True);
+ siso_in = trellis.siso_f(fi,K,0,-1,True,False,trellis.TRELLIS_MIN_SUM) # Put -1 if the Initial/Final states are not set.
+ deinter = trellis.permutation(interleaver.K(),interleaver.DEINTER(),fi.I(),gr.sizeof_float)
+ va_out = trellis.viterbi_s(fo,K,0,-1) # Put -1 if the Initial/Final states are not set.
+ fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
+ dst = gr.check_lfsr_32k_s()
+
+ fg.connect (src,src_head,s2fsmi,enc_out,inter,enc_in,mod)
+ fg.connect (mod,(add,0))
+ fg.connect (noise,(add,1))
+ fg.connect (add,metrics_in)
+ fg.connect (gnd,(siso_in,0))
+ fg.connect (metrics_in,(siso_in,1))
+ fg.connect (siso_in,deinter,va_out,fsmi2s,dst)
+
+ fg.run()
+
+ ntotal = dst.ntotal ()
+ nright = dst.nright ()
+ runlength = dst.runlength ()
+ return (ntotal,ntotal-nright)
+
+
+def main(args):
+ nargs = len (args)
+ if nargs == 4:
+ fname_out=args[0]
+ fname_in=args[1]
+ esn0_db=float(args[2]) # Es/No in dB
+ rep=int(args[3]) # number of times the experiment is run to collect enough errors
+ else:
+ sys.stderr.write ('usage: test_tcm.py fsm_name_out fsm_fname_in Es/No_db repetitions\n')
+ sys.exit (1)
+
+ # system parameters
+ Kb=1024*16 # packet size in bits (make it multiple of 16 so it can be packed in a short)
+ fo=trellis.fsm(fname_out) # get the outer FSM specification from a file
+ fi=trellis.fsm(fname_in) # get the innner FSM specification from a file
+ bitspersymbol = int(round(math.log(fo.I())/math.log(2))) # bits per FSM input symbol
+ if fo.O() != fi.I():
+ sys.stderr.write ('Incompatible cardinality between outer and inner FSM.\n')
+ sys.exit (1)
+ K=Kb/bitspersymbol # packet size in trellis steps
+ interleaver=trellis.interleaver(K,666) # construct a random interleaver
+ modulation = fsm_utils.psk8 # see fsm_utlis.py for available predefined modulations
+ dimensionality = modulation[0]
+ constellation = modulation[1]
+ if len(constellation)/dimensionality != fi.O():
+ sys.stderr.write ('Incompatible FSM output cardinality and modulation size.\n')
+ sys.exit (1)
+ # calculate average symbol energy
+ Es = 0
+ for i in range(len(constellation)):
+ Es = Es + constellation[i]**2
+ Es = Es / (len(constellation)/dimensionality)
+ N0=Es/pow(10.0,esn0_db/10.0); # calculate noise variance
+
+
+ tot_s=0 # total number of transmitted shorts
+ terr_s=0 # total number of shorts in error
+ terr_p=0 # total number of packets in error
+ for i in range(rep):
+ (s,e)=run_test(fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,constellation,N0,-long(666+i)) # run experiment with different seed to get different noise realizations
+ tot_s=tot_s+s
+ terr_s=terr_s+e
+ terr_p=terr_p+(terr_s!=0)
+ if ((i+1)%100==0) : # display progress
+ print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+ # estimate of the (short or bit) error rate
+ print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+
+
+
+if __name__ == '__main__':
+ main (sys.argv[1:])
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr
+from gnuradio import audio
+from gnuradio import trellis
+from gnuradio import eng_notation
+import math
+import sys
+import random
+import fsm_utils
+
+
+
+def make_rx(fg,fo,fi,dimensionality,constellation,K,interleaver,IT,Es,N0,type):
+ metrics_in = trellis.metrics_f(fi.O(),dimensionality,constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for innner Viterbi
+ scale = gr.multiply_const_ff(1.0/N0)
+ gnd = gr.vector_source_f([0],True);
+
+ inter=[]
+ deinter=[]
+ siso_in=[]
+ siso_out=[]
+
+ # generate all blocks
+ for it in range(IT):
+ inter.append( trellis.permutation(interleaver.K(),interleaver.INTER(),fi.I(),gr.sizeof_float) )
+ siso_in.append( trellis.siso_f(fi,K,0,-1,True,False,type) )
+ deinter.append( trellis.permutation(interleaver.K(),interleaver.DEINTER(),fi.I(),gr.sizeof_float) )
+ if it < IT-1:
+ siso_out.append( trellis.siso_f(fo,K,0,-1,False,True,type) )
+ else:
+ siso_out.append( trellis.viterbi_s(fo,K,0,-1) ) # no soft outputs needed
+
+ # connect first stage
+ fg.connect (gnd,inter[0])
+ fg.connect (metrics_in,scale)
+ fg.connect (scale,(siso_in[0],1))
+
+ # connect the rest
+ for it in range(IT):
+ if it < IT-1:
+ fg.connect (metrics_in,(siso_in[it+1],1))
+ fg.connect (siso_in[it],deinter[it],(siso_out[it],1))
+ fg.connect (gnd,(siso_out[it],0))
+ fg.connect (siso_out[it],inter[it+1])
+ fg.connect (inter[it],(siso_in[it],0))
+ else:
+ fg.connect (siso_in[it],deinter[it],siso_out[it])
+ fg.connect (inter[it],(siso_in[it],0))
+
+ return (metrics_in,siso_out[IT-1])
+
+
+def run_test (fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,constellation,Es,N0,IT,seed):
+ fg = gr.flow_graph ()
+
+
+ # TX
+ src = gr.lfsr_32k_source_s()
+ src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
+ s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the outer FSM input cardinality
+ enc_out = trellis.encoder_ss(fo,0) # initial state = 0
+ inter = trellis.permutation(interleaver.K(),interleaver.INTER(),1,gr.sizeof_short)
+ enc_in = trellis.encoder_ss(fi,0) # initial state = 0
+ mod = gr.chunks_to_symbols_sf(constellation,dimensionality)
+
+ # CHANNEL
+ add = gr.add_ff()
+ noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
+
+ # RX
+ (head,tail) = make_rx(fg,fo,fi,dimensionality,constellation,K,interleaver,IT,Es,N0,trellis.TRELLIS_MIN_SUM)
+ #(head,tail) = make_rx(fg,fo,fi,dimensionality,constellation,K,interleaver,IT,Es,N0,trellis.TRELLIS_SUM_PRODUCT)
+ fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
+ dst = gr.check_lfsr_32k_s()
+
+ fg.connect (src,src_head,s2fsmi,enc_out,inter,enc_in,mod)
+ fg.connect (mod,(add,0))
+ fg.connect (noise,(add,1))
+ fg.connect (add,head)
+ fg.connect (tail,fsmi2s,dst)
+
+ fg.run()
+
+ #print enc_out.ST(), enc_in.ST()
+
+ ntotal = dst.ntotal ()
+ nright = dst.nright ()
+ runlength = dst.runlength ()
+ return (ntotal,ntotal-nright)
+
+
+def main(args):
+ nargs = len (args)
+ if nargs == 4:
+ fname_out=args[0]
+ fname_in=args[1]
+ esn0_db=float(args[2]) # Es/No in dB
+ rep=int(args[3]) # number of times the experiment is run to collect enough errors
+ else:
+ sys.stderr.write ('usage: test_tcm.py fsm_name_out fsm_fname_in Es/No_db repetitions\n')
+ sys.exit (1)
+
+ # system parameters
+ Kb=1024*16 # packet size in bits (make it multiple of 16 so it can be packed in a short)
+ fo=trellis.fsm(fname_out) # get the outer FSM specification from a file
+ fi=trellis.fsm(fname_in) # get the innner FSM specification from a file
+ bitspersymbol = int(round(math.log(fo.I())/math.log(2))) # bits per FSM input symbol
+ if fo.O() != fi.I():
+ sys.stderr.write ('Incompatible cardinality between outer and inner FSM.\n')
+ sys.exit (1)
+ K=Kb/bitspersymbol # packet size in trellis steps
+ interleaver=trellis.interleaver(K,666) # construct a random interleaver
+ modulation = fsm_utils.psk8 # see fsm_utlis.py for available predefined modulations
+ dimensionality = modulation[0]
+ constellation = modulation[1]
+ if len(constellation)/dimensionality != fi.O():
+ sys.stderr.write ('Incompatible FSM output cardinality and modulation size.\n')
+ sys.exit (1)
+ # calculate average symbol energy
+ Es = 0
+ for i in range(len(constellation)):
+ Es = Es + constellation[i]**2
+ Es = Es / (len(constellation)/dimensionality)
+ N0=Es/pow(10.0,esn0_db/10.0); # calculate noise variance
+ IT = 3 # number of turbo iterations
+
+ tot_s=0 # total number of transmitted shorts
+ terr_s=0 # total number of shorts in error
+ terr_p=0 # total number of packets in error
+ for i in range(rep):
+ (s,e)=run_test(fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,constellation,Es,N0,IT,-long(666+i)) # run experiment with different seed to get different noise realizations
+ tot_s=tot_s+s
+ terr_s=terr_s+e
+ terr_p=terr_p+(terr_s!=0)
+ if ((i+1)%10==0): # display progress
+ print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+ # estimate of the (short or bit) error rate
+ print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+
+
+if __name__ == '__main__':
+ main (sys.argv[1:])
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr
+from gnuradio import audio
+from gnuradio import trellis
+from gnuradio import eng_notation
+import math
+import sys
+import random
+import fsm_utils
+
+def run_test (f,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed):
+ fg = gr.flow_graph ()
+
+
+ # TX
+ #packet = [0]*Kb
+ #for i in range(Kb-1*16): # last 16 bits = 0 to drive the final state to 0
+ #packet[i] = random.randint(0, 1) # random 0s and 1s
+ #src = gr.vector_source_s(packet,False)
+ src = gr.lfsr_32k_source_s()
+ src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
+ #b2s = gr.unpacked_to_packed_ss(1,gr.GR_MSB_FIRST) # pack bits in shorts
+ s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the FSM input cardinality
+ enc = trellis.encoder_ss(f,0) # initial state = 0
+ mod = gr.chunks_to_symbols_sf(constellation,dimensionality)
+
+ # CHANNEL
+ add = gr.add_ff()
+ noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
+
+ # RX
+ metrics = trellis.metrics_f(f.O(),dimensionality,constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for Viterbi
+ va = trellis.viterbi_s(f,K,0,-1) # Put -1 if the Initial/Final states are not set.
+ fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
+ #s2b = gr.packed_to_unpacked_ss(1,gr.GR_MSB_FIRST) # unpack shorts to bits
+ #dst = gr.vector_sink_s();
+ dst = gr.check_lfsr_32k_s()
+
+
+ fg.connect (src,src_head,s2fsmi,enc,mod)
+ #fg.connect (src,b2s,s2fsmi,enc,mod)
+ fg.connect (mod,(add,0))
+ fg.connect (noise,(add,1))
+ fg.connect (add,metrics)
+ fg.connect (metrics,va,fsmi2s,dst)
+ #fg.connect (metrics,va,fsmi2s,s2b,dst)
+
+
+ fg.run()
+
+ # A bit of cheating: run the program once and print the
+ # final encoder state..
+ # Then put it as the last argument in the viterbi block
+ #print "final state = " , enc.ST()
+
+ ntotal = dst.ntotal ()
+ nright = dst.nright ()
+ runlength = dst.runlength ()
+ #ntotal = len(packet)
+ #if len(dst.data()) != ntotal:
+ #print "Error: not enough data\n"
+ #nright = 0;
+ #for i in range(ntotal):
+ #if packet[i]==dst.data()[i]:
+ #nright=nright+1
+ #else:
+ #print "Error in ", i
+ return (ntotal,ntotal-nright)
+
+
+
+
+def main(args):
+ nargs = len (args)
+ if nargs == 3:
+ fname=args[0]
+ esn0_db=float(args[1]) # Es/No in dB
+ rep=int(args[2]) # number of times the experiment is run to collect enough errors
+ else:
+ sys.stderr.write ('usage: test_tcm.py fsm_fname Es/No_db repetitions\n')
+ sys.exit (1)
+
+ # system parameters
+ f=trellis.fsm(fname) # get the FSM specification from a file
+ Kb=1024*16 # packet size in bits (make it multiple of 16 so it can be packed in a short)
+ bitspersymbol = int(round(math.log(f.I())/math.log(2))) # bits per FSM input symbol
+ K=Kb/bitspersymbol # packet size in trellis steps
+ modulation = fsm_utils.psk4 # see fsm_utlis.py for available predefined modulations
+ dimensionality = modulation[0]
+ constellation = modulation[1]
+ if len(constellation)/dimensionality != f.O():
+ sys.stderr.write ('Incompatible FSM output cardinality and modulation size.\n')
+ sys.exit (1)
+ # calculate average symbol energy
+ Es = 0
+ for i in range(len(constellation)):
+ Es = Es + constellation[i]**2
+ Es = Es / (len(constellation)/dimensionality)
+ N0=Es/pow(10.0,esn0_db/10.0); # calculate noise variance
+
+ tot_s=0 # total number of transmitted shorts
+ terr_s=0 # total number of shorts in error
+ terr_p=0 # total number of packets in error
+ for i in range(rep):
+ (s,e)=run_test(f,Kb,bitspersymbol,K,dimensionality,constellation,N0,-long(666+i)) # run experiment with different seed to get different noise realizations
+ tot_s=tot_s+s
+ terr_s=terr_s+e
+ terr_p=terr_p+(terr_s!=0)
+ if ((i+1)%100==0) : # display progress
+ print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+ # estimate of the (short or bit) error rate
+ print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+
+
+
+if __name__ == '__main__':
+ main (sys.argv[1:])
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr
+from gnuradio import audio
+from gnuradio import trellis
+from gnuradio import eng_notation
+import math
+import sys
+import random
+import fsm_utils
+
+def run_test (f,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed):
+ fg = gr.flow_graph ()
+
+ # TX
+ packet = [0]*Kb
+ # this for loop is TOO slow!!!
+ for i in range(Kb-1*16): # last 16 bits = 0 to drive the final state to 0
+ packet[i] = random.randint(0, 1) # random 0s and 1s
+ src = gr.vector_source_s(packet,False)
+ #src = gr.lfsr_32k_source_s()
+ #src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
+ b2s = gr.unpacked_to_packed_ss(1,gr.GR_MSB_FIRST) # pack bits in shorts
+ s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the FSM input cardinality
+ enc = trellis.encoder_ss(f,0) # initial state = 0
+ mod = gr.chunks_to_symbols_sf(constellation,dimensionality)
+
+
+ # CHANNEL
+ add = gr.add_ff()
+ noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
+
+
+ # RX
+ metrics = trellis.metrics_f(f.O(),dimensionality,constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for Viterbi
+ va = trellis.viterbi_s(f,K,0,-1) # Put -1 if the Initial/Final states are not set.
+ fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
+ s2b = gr.packed_to_unpacked_ss(1,gr.GR_MSB_FIRST) # unpack shorts to bits
+ dst = gr.vector_sink_s();
+ #dst = gr.check_lfsr_32k_s();
+
+
+ #fg.connect (src,src_head,s2fsmi,enc,mod)
+ fg.connect (src,b2s,s2fsmi,enc,mod)
+ fg.connect (mod,(add,0))
+ fg.connect (noise,(add,1))
+ fg.connect (add,metrics)
+ #fg.connect (metrics,va,fsmi2s,dst)
+ fg.connect (metrics,va,fsmi2s,s2b,dst)
+
+
+ fg.run()
+
+ # A bit of cheating: run the program once and print the
+ # final encoder state..
+ # Then put it as the last argument in the viterbi block
+ #print "final state = " , enc.ST()
+
+ #ntotal = dst.ntotal ()
+ #nright = dst.nright ()
+ #runlength = dst.runlength ()
+ ntotal = len(packet)
+ if len(dst.data()) != ntotal:
+ print "Error: not enough data\n"
+ nright = 0;
+ # this for loop is TOO slow!!!
+ for i in range(ntotal):
+ if packet[i]==dst.data()[i]:
+ nright=nright+1
+ #else:
+ #print "Error in ", i
+ return (ntotal,ntotal-nright)
+
+
+
+
+def main(args):
+ nargs = len (args)
+ if nargs == 3:
+ fname=args[0]
+ esn0_db=float(args[1]) # Es/No in dB
+ rep=int(args[2]) # number of times the experiment is run to collect enough errors
+ else:
+ sys.stderr.write ('usage: test_tcm.py fsm_fname Es/No_db repetitions\n')
+ sys.exit (1)
+
+ # system parameters
+ f=trellis.fsm(fname) # get the FSM specification from a file
+ Kb=1024*16 # packet size in bits (make it multiple of 16 so it can be packed in a short)
+ bitspersymbol = int(round(math.log(f.I())/math.log(2))) # bits per FSM input symbol
+ K=Kb/bitspersymbol # packet size in trellis steps
+ modulation = fsm_utils.psk4 # see fsm_utlis.py for available predefined modulations
+ dimensionality = modulation[0]
+ constellation = modulation[1]
+ if len(constellation)/dimensionality != f.O():
+ sys.stderr.write ('Incompatible FSM output cardinality and modulation size.\n')
+ sys.exit (1)
+ # calculate average symbol energy
+ Es = 0
+ for i in range(len(constellation)):
+ Es = Es + constellation[i]**2
+ Es = Es / (len(constellation)/dimensionality)
+ N0=Es/pow(10.0,esn0_db/10.0); # noise variance
+
+ tot_s=0 # total number of transmitted shorts
+ terr_s=0 # total number of shorts in error
+ terr_p=0 # total number of packets in error
+ for i in range(rep):
+ (s,e)=run_test(f,Kb,bitspersymbol,K,dimensionality,constellation,N0,-long(666+i)) # run experiment with different seed to get different noise realizations
+ tot_s=tot_s+s
+ terr_s=terr_s+e
+ terr_p=terr_p+(terr_s!=0)
+ if ((i+1)%1==0) : # display progress
+ print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+ # estimate of the (short or bit) error rate
+ print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+
+
+
+if __name__ == '__main__':
+ main (sys.argv[1:])
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr
+from gnuradio import audio
+from gnuradio import trellis
+from gnuradio import eng_notation
+import math
+import sys
+import random
+import fsm_utils
+
+def run_test (f,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed):
+ fg = gr.flow_graph ()
+
+
+ # TX
+ #packet = [0]*Kb
+ #for i in range(Kb-1*16): # last 16 bits = 0 to drive the final state to 0
+ #packet[i] = random.randint(0, 1) # random 0s and 1s
+ #src = gr.vector_source_s(packet,False)
+ src = gr.lfsr_32k_source_s()
+ src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
+ #b2s = gr.unpacked_to_packed_ss(1,gr.GR_MSB_FIRST) # pack bits in shorts
+ s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the FSM input cardinality
+ enc = trellis.encoder_ss(f,0) # initial state = 0
+ mod = gr.chunks_to_symbols_sf(constellation,dimensionality)
+
+ # CHANNEL
+ add = gr.add_ff()
+ noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
+
+ # RX
+ metrics = trellis.metrics_f(f.O(),dimensionality,constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for Viterbi
+ va = trellis.viterbi_s(f,K,0,-1) # Put -1 if the Initial/Final states are not set.
+ fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
+ #s2b = gr.packed_to_unpacked_ss(1,gr.GR_MSB_FIRST) # unpack shorts to bits
+ #dst = gr.vector_sink_s();
+ dst = gr.check_lfsr_32k_s()
+
+
+ fg.connect (src,src_head,s2fsmi,enc,mod)
+ #fg.connect (src,b2s,s2fsmi,enc,mod)
+ fg.connect (mod,(add,0))
+ fg.connect (noise,(add,1))
+ fg.connect (add,metrics)
+ fg.connect (metrics,va,fsmi2s,dst)
+ #fg.connect (metrics,va,fsmi2s,s2b,dst)
+
+
+ fg.run()
+
+ # A bit of cheating: run the program once and print the
+ # final encoder state..
+ # Then put it as the last argument in the viterbi block
+ #print "final state = " , enc.ST()
+
+ ntotal = dst.ntotal ()
+ nright = dst.nright ()
+ runlength = dst.runlength ()
+ #ntotal = len(packet)
+ #if len(dst.data()) != ntotal:
+ #print "Error: not enough data\n"
+ #nright = 0;
+ #for i in range(ntotal):
+ #if packet[i]==dst.data()[i]:
+ #nright=nright+1
+ #else:
+ #print "Error in ", i
+ return (ntotal,ntotal-nright)
+
+
+
+
+def main(args):
+ nargs = len (args)
+ if nargs == 2:
+ esn0_db=float(args[0]) # Es/No in dB
+ rep=int(args[1]) # number of times the experiment is run to collect enough errors
+ else:
+ sys.stderr.write ('usage: test_tcm2.py Es/No_db repetitions\n')
+ sys.exit (1)
+
+ # system parameters
+ f=trellis.fsm(1,2,[5,7]) # generate FSM specification from the generator matrix
+ Kb=1024*16 # packet size in bits (make it multiple of 16 so it can be packed in a short)
+ bitspersymbol = int(round(math.log(f.I())/math.log(2))) # bits per FSM input symbol
+ K=Kb/bitspersymbol # packet size in trellis steps
+ modulation = fsm_utils.psk4 # see fsm_utlis.py for available predefined modulations
+ dimensionality = modulation[0]
+ constellation = modulation[1]
+ if len(constellation)/dimensionality != f.O():
+ sys.stderr.write ('Incompatible FSM output cardinality and modulation size.\n')
+ sys.exit (1)
+ # calculate average symbol energy
+ Es = 0
+ for i in range(len(constellation)):
+ Es = Es + constellation[i]**2
+ Es = Es / (len(constellation)/dimensionality)
+ N0=Es/pow(10.0,esn0_db/10.0); # calculate noise variance
+
+ tot_s=0 # total number of transmitted shorts
+ terr_s=0 # total number of shorts in error
+ terr_p=0 # total number of packets in error
+ for i in range(rep):
+ (s,e)=run_test(f,Kb,bitspersymbol,K,dimensionality,constellation,N0,-long(666+i)) # run experiment with different seed to get different noise realizations
+ tot_s=tot_s+s
+ terr_s=terr_s+e
+ terr_p=terr_p+(terr_s!=0)
+ if ((i+1)%100==0) : # display progress
+ print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+ # estimate of the (short or bit) error rate
+ print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+
+
+if __name__ == '__main__':
+ main (sys.argv[1:])
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr
+from gnuradio import audio
+from gnuradio import trellis
+from gnuradio import eng_notation
+import math
+import sys
+import fsm_utils
+
+def run_test (f,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed):
+ fg = gr.flow_graph ()
+
+ # TX
+ src = gr.lfsr_32k_source_s()
+ src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
+ s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the FSM input cardinality
+ enc = trellis.encoder_ss(f,0) # initial state = 0
+ mod = gr.chunks_to_symbols_sf(constellation,dimensionality)
+
+
+ # CHANNEL
+ add = gr.add_ff()
+ noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
+
+
+ # RX
+ va = trellis.viterbi_combined_fs(f,K,0,-1,dimensionality,constellation,trellis.TRELLIS_EUCLIDEAN) # Put -1 if the Initial/Final states are not set.
+ fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
+ dst = gr.check_lfsr_32k_s();
+
+
+ fg.connect (src,src_head,s2fsmi,enc,mod)
+ fg.connect (mod,(add,0))
+ fg.connect (noise,(add,1))
+ fg.connect (add,va,fsmi2s,dst)
+
+
+ fg.run()
+
+ # A bit of cheating: run the program once and print the
+ # final encoder state..
+ # Then put it as the last argument in the viterbi block
+ #print "final state = " , enc.ST()
+
+ ntotal = dst.ntotal ()
+ nright = dst.nright ()
+ runlength = dst.runlength ()
+
+ return (ntotal,ntotal-nright)
+
+
+
+
+def main(args):
+ nargs = len (args)
+ if nargs == 3:
+ fname=args[0]
+ esn0_db=float(args[1]) # Es/No in dB
+ rep=int(args[2]) # number of times the experiment is run to collect enough errors
+ else:
+ sys.stderr.write ('usage: test_tcm_combined.py fsm_fname Es/No_db repetitions\n')
+ sys.exit (1)
+
+ # system parameters
+ f=trellis.fsm(fname) # get the FSM specification from a file (will hopefully be automated in the future...)
+ Kb=1024*16 # packet size in bits (make it multiple of 16)
+ bitspersymbol = int(round(math.log(f.I())/math.log(2))) # bits per FSM input symbol
+ K=Kb/bitspersymbol # packet size in trellis steps
+ modulation = fsm_utils.psk4 # see fsm_utils.py for available predefined modulations
+ dimensionality = modulation[0]
+ constellation = modulation[1]
+ if len(constellation)/dimensionality != f.O():
+ sys.stderr.write ('Incompatible FSM output cardinality and modulation size.\n')
+ sys.exit (1)
+ # calculate average symbol energy
+ Es = 0
+ for i in range(len(constellation)):
+ Es = Es + constellation[i]**2
+ Es = Es / (len(constellation)/dimensionality)
+ N0=Es/pow(10.0,esn0_db/10.0); # noise variance
+
+ tot_s=0 # total number of transmitted shorts
+ terr_s=0 # total number of shorts in error
+ terr_p=0 # total number of packets in error
+ for i in range(rep):
+ (s,e)=run_test(f,Kb,bitspersymbol,K,dimensionality,constellation,N0,-long(666+i)) # run experiment with different seed to get different noise realizations
+ tot_s=tot_s+s
+ terr_s=terr_s+e
+ terr_p=terr_p+(terr_s!=0)
+ if ((i+1)%100==0) : # display progress
+ print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+ # estimate of the (short or bit) error rate
+ print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+
+
+
+if __name__ == '__main__':
+ main (sys.argv[1:])
+
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr
+from gnuradio import audio
+from gnuradio import trellis
+from gnuradio import eng_notation
+import math
+import sys
+import fsm_utils
+
+def run_test (f,Kb,bitspersymbol,K,dimensionality,constellation,N0,seed,P):
+ fg = gr.flow_graph ()
+
+ # TX
+ src = gr.lfsr_32k_source_s()
+ src_head = gr.head (gr.sizeof_short,Kb/16*P) # packet size in shorts
+ s2fsmi=gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the FSM input cardinality
+ s2p = gr.stream_to_streams(gr.sizeof_short,P) # serial to parallel
+ enc = trellis.encoder_ss(f,0) # initiali state = 0
+ mod = gr.chunks_to_symbols_sf(constellation,dimensionality)
+
+ # CHANNEL
+ add=[]
+ noise=[]
+ for i in range(P):
+ add.append(gr.add_ff())
+ noise.append(gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed))
+
+ # RX
+ metrics = trellis.metrics_f(f.O(),dimensionality,constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for Viterbi
+ va = trellis.viterbi_s(f,K,0,-1) # Put -1 if the Initial/Final states are not set.
+ p2s = gr.streams_to_stream(gr.sizeof_short,P) # parallel to serial
+ fsmi2s=gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
+ dst = gr.check_lfsr_32k_s()
+
+ fg.connect (src,src_head,s2fsmi,s2p)
+ for i in range(P):
+ fg.connect ((s2p,i),(enc,i),(mod,i))
+ fg.connect ((mod,i),(add[i],0))
+ fg.connect (noise[i],(add[i],1))
+ fg.connect (add[i],(metrics,i))
+ fg.connect ((metrics,i),(va,i),(p2s,i))
+ fg.connect (p2s,fsmi2s,dst)
+
+
+ fg.run()
+
+ # A bit of cheating: run the program once and print the
+ # final encoder state.
+ # Then put it as the last argument in the viterbi block
+ #print "final state = " , enc.ST()
+
+ ntotal = dst.ntotal ()
+ nright = dst.nright ()
+ runlength = dst.runlength ()
+
+ return (ntotal,ntotal-nright)
+
+
+
+def main(args):
+ nargs = len (args)
+ if nargs == 3:
+ fname=args[0]
+ esn0_db=float(args[1]) # Es/No in dB
+ rep=int(args[2]) # number of times the experiment is run to collect enough errors
+ else:
+ sys.stderr.write ('usage: test_tcm.py fsm_fname Es/No_db repetitions\n')
+ sys.exit (1)
+
+ # system parameters
+ f=trellis.fsm(fname) # get the FSM specification from a file
+ P=4 # how many parallel streams?
+ Kb=1024*16 # packet size in bits (make it multiple of 16 so it can be packed in a short)
+ bitspersymbol = int(round(math.log(f.I())/math.log(2))) # bits per FSM input symbol
+ K=Kb/bitspersymbol # packet size in trellis steps
+ modulation = fsm_utils.psk4 # see fsm_utlis.py for available predefined modulations
+ dimensionality = modulation[0]
+ constellation = modulation[1]
+ if len(constellation)/dimensionality != f.O():
+ sys.stderr.write ('Incompatible FSM output cardinality and modulation size.\n')
+ sys.exit (1)
+ # calculate average symbol energy
+ Es = 0
+ for i in range(len(constellation)):
+ Es = Es + constellation[i]**2
+ Es = Es / (len(constellation)/dimensionality)
+ N0=Es/pow(10.0,esn0_db/10.0); # calculate noise variance
+
+ tot_s=0 # total number of transmitted shorts
+ terr_s=0 # total number of shorts in error
+ terr_p=0 # total number of packets in error
+ for i in range(rep):
+ (s,e)=run_test(f,Kb,bitspersymbol,K,dimensionality,constellation,N0,-long(666+i),P) # run experiment with different seed to get different noise realizations
+ tot_s=tot_s+s
+ terr_s=terr_s+e
+ terr_p=terr_p+(terr_s!=0)
+ if ((i+1)%100==0) : # display progress
+ print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+ # estimate of the (short or bit) error rate
+ print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+
+
+if __name__ == '__main__':
+ main (sys.argv[1:])
+
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr
+from gnuradio import audio
+from gnuradio import trellis
+from gnuradio import eng_notation
+import math
+import sys
+import fsm_utils
+
+
+def make_rx(fg,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,type):
+ metrics_in = trellis.metrics_f(fi.O(),dimensionality,tot_constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for innner SISO
+ scale = gr.multiply_const_ff(1.0/N0)
+ gnd = gr.vector_source_f([0],True);
+
+ inter=[]
+ deinter=[]
+ siso_in=[]
+ siso_out=[]
+
+ # generate all blocks
+ for it in range(IT):
+ inter.append( trellis.permutation(interleaver.K(),interleaver.INTER(),fi.I(),gr.sizeof_float) )
+ siso_in.append( trellis.siso_f(fi,K,0,-1,True,False,type) )
+ deinter.append( trellis.permutation(interleaver.K(),interleaver.DEINTER(),fi.I(),gr.sizeof_float) )
+ if it < IT-1:
+ siso_out.append( trellis.siso_f(fo,K,0,-1,False,True,type) )
+ else:
+ siso_out.append( trellis.viterbi_s(fo,K,0,-1) ) # no soft outputs needed
+
+ # connect first stage
+ fg.connect (gnd,inter[0])
+ fg.connect (metrics_in,scale)
+ fg.connect (scale,(siso_in[0],1))
+
+ # connect the rest
+ for it in range(IT):
+ if it < IT-1:
+ fg.connect (metrics_in,(siso_in[it+1],1))
+ fg.connect (siso_in[it],deinter[it],(siso_out[it],1))
+ fg.connect (gnd,(siso_out[it],0))
+ fg.connect (siso_out[it],inter[it+1])
+ fg.connect (inter[it],(siso_in[it],0))
+ else:
+ fg.connect (siso_in[it],deinter[it],siso_out[it])
+ fg.connect (inter[it],(siso_in[it],0))
+
+ return (metrics_in,siso_out[IT-1])
+
+
+def run_test (fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,tot_constellation,Es,N0,IT,seed):
+ fg = gr.flow_graph ()
+
+ # TX
+ src = gr.lfsr_32k_source_s()
+ src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
+ s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the iouter FSM input cardinality
+ enc_out = trellis.encoder_ss(fo,0) # initial state = 0
+ inter = trellis.permutation(interleaver.K(),interleaver.INTER(),1,gr.sizeof_short)
+ enc_in = trellis.encoder_ss(fi,0) # initial state = 0
+ # essentially here we implement the combination of modulation and channel as a memoryless modulation (the memory induced by the channel is hidden in the innner FSM)
+ mod = gr.chunks_to_symbols_sf(tot_constellation,dimensionality)
+
+ # CHANNEL
+ add = gr.add_ff()
+ noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
+
+ # RX
+ (head,tail) = make_rx(fg,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,trellis.TRELLIS_MIN_SUM)
+ fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
+ dst = gr.check_lfsr_32k_s();
+
+ fg.connect (src,src_head,s2fsmi,enc_out,inter,enc_in,mod)
+ fg.connect (mod,(add,0))
+ fg.connect (noise,(add,1))
+ fg.connect (add,head)
+ fg.connect (tail,fsmi2s,dst)
+
+ fg.run()
+
+ ntotal = dst.ntotal ()
+ nright = dst.nright ()
+ runlength = dst.runlength ()
+ #print ntotal,nright,runlength
+
+ return (ntotal,ntotal-nright)
+
+
+
+
+def main(args):
+ nargs = len (args)
+ if nargs == 3:
+ fname_out=args[0]
+ esn0_db=float(args[1])
+ rep=int(args[2])
+ else:
+ sys.stderr.write ('usage: test_turbo_equalization.py fsm_name_out Es/No_db repetitions\n')
+ sys.exit (1)
+
+ # system parameters
+ Kb=64*16 # packet size in bits (multiple of 16)
+ modulation = fsm_utils.pam4 # see fsm_utlis.py for available predefined modulations
+ channel = fsm_utils.c_channel # see fsm_utlis.py for available predefined test channels
+ fo=trellis.fsm(fname_out) # get the outer FSM specification from a file
+ fi=trellis.fsm(len(modulation[1]),len(channel)) # generate the FSM automatically
+ if fo.O() != fi.I():
+ sys.stderr.write ('Incompatible cardinality between outer and inner FSM.\n')
+ sys.exit (1)
+ bitspersymbol = int(round(math.log(fo.I())/math.log(2))) # bits per FSM input symbol
+ K=Kb/bitspersymbol # packet size in trellis steps
+ print 'size = ',K
+ interleaver=trellis.interleaver(K,666) # construct a random interleaver
+ tot_channel = fsm_utils.make_isi_lookup(modulation,channel,True) # generate the lookup table (normalize energy to 1)
+ dimensionality = tot_channel[0]
+ tot_constellation = tot_channel[1]
+ if len(tot_constellation)/dimensionality != fi.O():
+ sys.stderr.write ('Incompatible FSM output cardinality and lookup table size.\n')
+ sys.exit (1)
+ N0=pow(10.0,-esn0_db/10.0); # noise variance
+ IT = 3 # number of turbo iterations
+
+ tot_s=0 # total number of transmitted shorts
+ terr_s=0 # total number of shorts in error
+ terr_p=0 # total number of packets in error
+
+ for i in range(rep):
+ (s,e)=run_test(fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,tot_constellation,1,N0,IT,-long(666+i)) # run experiment with different seed to get different noise realizations
+ print s
+ tot_s=tot_s+s
+ terr_s=terr_s+e
+ terr_p=terr_p+(terr_s!=0)
+ if ((i+1)%10==0) : # display progress
+ print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+ # estimate of the (short or bit) error rate
+ print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+
+
+
+if __name__ == '__main__':
+ main (sys.argv[1:])
+
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr
+from gnuradio import audio
+from gnuradio import trellis
+from gnuradio import eng_notation
+import math
+import sys
+import random
+import fsm_utils
+
+def make_rx(fg,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,type):
+ metrics_in = trellis.metrics_f(fi.O(),dimensionality,tot_constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for innner SISO
+ scale = gr.multiply_const_ff(1.0/N0)
+ gnd = gr.vector_source_f([0],True);
+
+ inter=[]
+ deinter=[]
+ siso_in=[]
+ siso_out=[]
+
+ # generate all blocks
+ for it in range(IT):
+ inter.append( trellis.permutation(interleaver.K(),interleaver.INTER(),fi.I(),gr.sizeof_float) )
+ siso_in.append( trellis.siso_f(fi,K,0,-1,True,False,type) )
+ deinter.append( trellis.permutation(interleaver.K(),interleaver.DEINTER(),fi.I(),gr.sizeof_float) )
+ if it < IT-1:
+ siso_out.append( trellis.siso_f(fo,K,0,-1,False,True,type) )
+ else:
+ siso_out.append( trellis.viterbi_s(fo,K,0,-1) ) # no soft outputs needed
+
+ # connect first stage
+ fg.connect (gnd,inter[0])
+ fg.connect (metrics_in,scale)
+ fg.connect (scale,(siso_in[0],1))
+
+ # connect the rest
+ for it in range(IT):
+ if it < IT-1:
+ fg.connect (scale,(siso_in[it+1],1))
+ fg.connect (siso_in[it],deinter[it],(siso_out[it],1))
+ fg.connect (gnd,(siso_out[it],0))
+ fg.connect (siso_out[it],inter[it+1])
+ fg.connect (inter[it],(siso_in[it],0))
+ else:
+ fg.connect (siso_in[it],deinter[it],siso_out[it])
+ fg.connect (inter[it],(siso_in[it],0))
+
+ return (metrics_in,siso_out[IT-1])
+
+
+def run_test (fo,fi,interleaver,Kb,bitspersymbol,K,channel,modulation,dimensionality,tot_constellation,Es,N0,IT,seed):
+ fg = gr.flow_graph ()
+ L = len(channel)
+
+ # TX
+ # this for loop is TOO slow in python!!!
+ packet = [0]*(K)
+ random.seed(seed)
+ for i in range(len(packet)):
+ packet[i] = random.randint(0, 2**bitspersymbol - 1) # random symbols
+ src = gr.vector_source_s(packet,False)
+ enc_out = trellis.encoder_ss(fo,0) # initial state = 0
+ inter = trellis.permutation(interleaver.K(),interleaver.INTER(),1,gr.sizeof_short)
+ mod = gr.chunks_to_symbols_sf(modulation[1],modulation[0])
+
+ # CHANNEL
+ isi = gr.fir_filter_fff(1,channel)
+ add = gr.add_ff()
+ noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
+
+ # RX
+ (head,tail) = make_rx(fg,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,trellis.TRELLIS_MIN_SUM)
+ dst = gr.vector_sink_s();
+
+ fg.connect (src,enc_out,inter,mod)
+ fg.connect (mod,isi,(add,0))
+ fg.connect (noise,(add,1))
+ fg.connect (add,head)
+ fg.connect (tail,dst)
+
+ fg.run()
+
+ data = dst.data()
+ ntotal = len(data)
+ nright=0
+ for i in range(ntotal):
+ if packet[i]==data[i]:
+ nright=nright+1
+ #else:
+ #print "Error in ", i
+
+ return (ntotal,ntotal-nright)
+
+
+
+
+def main(args):
+ nargs = len (args)
+ if nargs == 3:
+ fname_out=args[0]
+ esn0_db=float(args[1])
+ rep=int(args[2])
+ else:
+ sys.stderr.write ('usage: test_turbo_equalization.py fsm_name_out Es/No_db repetitions\n')
+ sys.exit (1)
+
+ # system parameters
+ Kb=64*16 # packet size in bits (multiple of 16)
+ modulation = fsm_utils.pam4 # see fsm_utlis.py for available predefined modulations
+ channel = fsm_utils.c_channel # see fsm_utlis.py for available predefined test channels
+ fo=trellis.fsm(fname_out) # get the outer FSM specification from a file
+ fi=trellis.fsm(len(modulation[1]),len(channel)) # generate the FSM automatically
+ if fo.O() != fi.I():
+ sys.stderr.write ('Incompatible cardinality between outer and inner FSM.\n')
+ sys.exit (1)
+ bitspersymbol = int(round(math.log(fo.I())/math.log(2))) # bits per FSM input symbol
+ K=Kb/bitspersymbol # packet size in trellis steps
+ interleaver=trellis.interleaver(K,666) # construct a random interleaver
+ tot_channel = fsm_utils.make_isi_lookup(modulation,channel,True) # generate the lookup table (normalize energy to 1)
+ dimensionality = tot_channel[0]
+ tot_constellation = tot_channel[1]
+ if len(tot_constellation)/dimensionality != fi.O():
+ sys.stderr.write ('Incompatible FSM output cardinality and lookup table size.\n')
+ sys.exit (1)
+ N0=pow(10.0,-esn0_db/10.0); # noise variance
+ IT = 3 # number of turbo iterations
+
+ tot_s=0 # total number of transmitted shorts
+ terr_s=0 # total number of shorts in error
+ terr_p=0 # total number of packets in error
+
+ for i in range(rep):
+ (s,e)=run_test(fo,fi,interleaver,Kb,bitspersymbol,K,channel,modulation,dimensionality,tot_constellation,1,N0,IT,-long(666+i)) # run experiment with different seed to get different noise realizations
+ tot_s=tot_s+s
+ terr_s=terr_s+e
+ terr_p=terr_p+(terr_s!=0)
+ if ((i+1)%10==0) : # display progress
+ print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+ # estimate of the (short or bit) error rate
+ print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+
+
+
+if __name__ == '__main__':
+ main (sys.argv[1:])
+
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr
+from gnuradio import audio
+from gnuradio import trellis
+from gnuradio import eng_notation
+import math
+import sys
+import random
+import fsm_utils
+
+def make_rx(fg,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,type):
+ scale = gr.multiply_const_ff(math.sqrt(1.0/N0))
+ gnd = gr.vector_source_f([0],True);
+
+ inter=[]
+ deinter=[]
+ siso_in=[]
+ siso_out=[]
+
+ # generate all blocks
+ for it in range(IT):
+ inter.append( trellis.permutation(interleaver.K(),interleaver.INTER(),fi.I(),gr.sizeof_float) )
+ siso_in.append( trellis.siso_combined_f(fi,K,0,-1,True,False,type,dimensionality,tot_constellation,trellis.TRELLIS_EUCLIDEAN) )
+ deinter.append( trellis.permutation(interleaver.K(),interleaver.DEINTER(),fi.I(),gr.sizeof_float) )
+ if it < IT-1:
+ siso_out.append( trellis.siso_f(fo,K,0,-1,False,True,type) )
+ else:
+ siso_out.append( trellis.viterbi_s(fo,K,0,-1) ) # no soft outputs needed
+
+ # connect first stage
+ fg.connect (gnd,inter[0])
+ fg.connect (scale,(siso_in[0],1))
+
+ # connect the rest
+ for it in range(IT):
+ if it < IT-1:
+ fg.connect (scale,(siso_in[it+1],1))
+ fg.connect (siso_in[it],deinter[it],(siso_out[it],1))
+ fg.connect (gnd,(siso_out[it],0))
+ fg.connect (siso_out[it],inter[it+1])
+ fg.connect (inter[it],(siso_in[it],0))
+ else:
+ fg.connect (siso_in[it],deinter[it],siso_out[it])
+ fg.connect (inter[it],(siso_in[it],0))
+
+ return (scale,siso_out[IT-1])
+
+
+def run_test (fo,fi,interleaver,Kb,bitspersymbol,K,channel,modulation,dimensionality,tot_constellation,Es,N0,IT,seed):
+ fg = gr.flow_graph ()
+ L = len(channel)
+
+ # TX
+ # this for loop is TOO slow in python!!!
+ packet = [0]*(K)
+ random.seed(seed)
+ for i in range(len(packet)):
+ packet[i] = random.randint(0, 2**bitspersymbol - 1) # random symbols
+ src = gr.vector_source_s(packet,False)
+ enc_out = trellis.encoder_ss(fo,0) # initial state = 0
+ inter = trellis.permutation(interleaver.K(),interleaver.INTER(),1,gr.sizeof_short)
+ mod = gr.chunks_to_symbols_sf(modulation[1],modulation[0])
+
+ # CHANNEL
+ isi = gr.fir_filter_fff(1,channel)
+ add = gr.add_ff()
+ noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
+
+ # RX
+ (head,tail) = make_rx(fg,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,trellis.TRELLIS_MIN_SUM)
+ dst = gr.vector_sink_s();
+
+ fg.connect (src,enc_out,inter,mod)
+ fg.connect (mod,isi,(add,0))
+ fg.connect (noise,(add,1))
+ fg.connect (add,head)
+ fg.connect (tail,dst)
+
+ fg.run()
+
+ data = dst.data()
+ ntotal = len(data)
+ nright=0
+ for i in range(ntotal):
+ if packet[i]==data[i]:
+ nright=nright+1
+ #else:
+ #print "Error in ", i
+
+ return (ntotal,ntotal-nright)
+
+
+
+
+def main(args):
+ nargs = len (args)
+ if nargs == 3:
+ fname_out=args[0]
+ esn0_db=float(args[1])
+ rep=int(args[2])
+ else:
+ sys.stderr.write ('usage: test_turbo_equalization.py fsm_name_out Es/No_db repetitions\n')
+ sys.exit (1)
+
+ # system parameters
+ Kb=64*16 # packet size in bits (multiple of 16)
+ modulation = fsm_utils.pam4 # see fsm_utlis.py for available predefined modulations
+ channel = fsm_utils.c_channel # see fsm_utlis.py for available predefined test channels
+ fo=trellis.fsm(fname_out) # get the outer FSM specification from a file
+ fi=trellis.fsm(len(modulation[1]),len(channel)) # generate the FSM automatically
+ if fo.O() != fi.I():
+ sys.stderr.write ('Incompatible cardinality between outer and inner FSM.\n')
+ sys.exit (1)
+ bitspersymbol = int(round(math.log(fo.I())/math.log(2))) # bits per FSM input symbol
+ K=Kb/bitspersymbol # packet size in trellis steps
+ interleaver=trellis.interleaver(K,666) # construct a random interleaver
+ tot_channel = fsm_utils.make_isi_lookup(modulation,channel,True) # generate the lookup table (normalize energy to 1)
+ dimensionality = tot_channel[0]
+ N0=pow(10.0,-esn0_db/10.0); # noise variance
+ tot_constellation =[0]*len(tot_channel[1])
+ for i in range(len(tot_channel[1])):
+ tot_constellation[i] = tot_channel[1][i] * math.sqrt(1.0/N0)
+ if len(tot_constellation)/dimensionality != fi.O():
+ sys.stderr.write ('Incompatible FSM output cardinality and lookup table size.\n')
+ sys.exit (1)
+ IT = 3 # number of turbo iterations
+
+ tot_s=0 # total number of transmitted shorts
+ terr_s=0 # total number of shorts in error
+ terr_p=0 # total number of packets in error
+
+ for i in range(rep):
+ (s,e)=run_test(fo,fi,interleaver,Kb,bitspersymbol,K,channel,modulation,dimensionality,tot_constellation,1,N0,IT,-long(666+i)) # run experiment with different seed to get different noise realizations
+ tot_s=tot_s+s
+ terr_s=terr_s+e
+ terr_p=terr_p+(terr_s!=0)
+ if ((i+1)%10==0) : # display progress
+ print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+ # estimate of the (short or bit) error rate
+ print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+
+
+
+if __name__ == '__main__':
+ main (sys.argv[1:])
+
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr
+from gnuradio import audio
+from gnuradio import trellis
+from gnuradio import eng_notation
+import math
+import sys
+import fsm_utils
+
+def run_test (f,Kb,bitspersymbol,K,dimensionality,tot_constellation,N0,seed):
+ fg = gr.flow_graph ()
+
+ # TX
+ src = gr.lfsr_32k_source_s()
+ src_head = gr.head (gr.sizeof_short,Kb/16) # packet size in shorts
+ s2fsmi = gr.packed_to_unpacked_ss(bitspersymbol,gr.GR_MSB_FIRST) # unpack shorts to symbols compatible with the FSM input cardinality
+ enc = trellis.encoder_ss(f,0) # initial state = 0
+ # essentially here we implement the combination of modulation and channel as a memoryless modulation (the memory induced by the channel is hidden in the FSM)
+ mod = gr.chunks_to_symbols_sf(tot_constellation,dimensionality)
+
+ # CHANNEL
+ add = gr.add_ff()
+ noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
+
+ # RX
+ metrics = trellis.metrics_f(f.O(),dimensionality,tot_constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for Viterbi
+ va = trellis.viterbi_s(f,K,0,-1) # Put -1 if the Initial/Final states are not set.
+ fsmi2s = gr.unpacked_to_packed_ss(bitspersymbol,gr.GR_MSB_FIRST) # pack FSM input symbols to shorts
+ dst = gr.check_lfsr_32k_s();
+
+ fg.connect (src,src_head,s2fsmi,enc,mod)
+ fg.connect (mod,(add,0))
+ fg.connect (noise,(add,1))
+ fg.connect (add,metrics)
+ fg.connect (metrics,va,fsmi2s,dst)
+
+ fg.run()
+
+ ntotal = dst.ntotal ()
+ nright = dst.nright ()
+ runlength = dst.runlength ()
+ #print ntotal,nright,runlength
+
+ return (ntotal,ntotal-nright)
+
+
+
+
+def main(args):
+ nargs = len (args)
+ if nargs == 2:
+ esn0_db=float(args[0])
+ rep=int(args[1])
+ else:
+ sys.stderr.write ('usage: test_viterbi_equalization.py Es/No_db repetitions\n')
+ sys.exit (1)
+
+ # system parameters
+ Kb=128*16 # packet size in bits (multiple of 16)
+ modulation = fsm_utils.pam4 # see fsm_utlis.py for available predefined modulations
+ channel = fsm_utils.c_channel # see fsm_utlis.py for available predefined test channels
+ f=trellis.fsm(len(modulation[1]),len(channel)) # generate the FSM automatically
+ bitspersymbol = int(round(math.log(f.I())/math.log(2))) # bits per FSM input symbol
+ K=Kb/bitspersymbol # packet size in trellis steps
+
+ tot_channel = fsm_utils.make_isi_lookup(modulation,channel,True) # generate the lookup table (normalize energy to 1)
+ dimensionality = tot_channel[0]
+ tot_constellation = tot_channel[1]
+ N0=pow(10.0,-esn0_db/10.0); # noise variance
+ if len(tot_constellation)/dimensionality != f.O():
+ sys.stderr.write ('Incompatible FSM output cardinality and lookup table size.\n')
+ sys.exit (1)
+
+
+ tot_s=0 # total number of transmitted shorts
+ terr_s=0 # total number of shorts in error
+ terr_p=0 # total number of packets in error
+
+ for i in range(rep):
+ (s,e)=run_test(f,Kb,bitspersymbol,K,dimensionality,tot_constellation,N0,-long(666+i)) # run experiment with different seed to get different noise realizations
+ tot_s=tot_s+s
+ terr_s=terr_s+e
+ terr_p=terr_p+(terr_s!=0)
+ if ((i+1)%100==0) : # display progress
+ print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+ # estimate of the (short or bit) error rate
+ print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+
+
+
+if __name__ == '__main__':
+ main (sys.argv[1:])
+
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr
+from gnuradio import audio
+from gnuradio import trellis
+from gnuradio import eng_notation
+import math
+import sys
+import random
+import fsm_utils
+
+def run_test (f,Kb,bitspersymbol,K,channel,modulation,dimensionality,tot_constellation,N0,seed):
+ fg = gr.flow_graph ()
+ L = len(channel)
+
+ # TX
+ # this for loop is TOO slow in python!!!
+ packet = [0]*(K+2*L)
+ random.seed(seed)
+ for i in range(len(packet)):
+ packet[i] = random.randint(0, 2**bitspersymbol - 1) # random symbols
+ for i in range(L): # first/last L symbols set to 0
+ packet[i] = 0
+ packet[len(packet)-i-1] = 0
+ src = gr.vector_source_s(packet,False)
+ mod = gr.chunks_to_symbols_sf(modulation[1],modulation[0])
+
+ # CHANNEL
+ isi = gr.fir_filter_fff(1,channel)
+ add = gr.add_ff()
+ noise = gr.noise_source_f(gr.GR_GAUSSIAN,math.sqrt(N0/2),seed)
+
+ # RX
+ skip = gr.skiphead(gr.sizeof_float, L) # skip the first L samples since you know they are coming from the L zero symbols
+ #metrics = trellis.metrics_f(f.O(),dimensionality,tot_constellation,trellis.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for Viterbi
+ #va = trellis.viterbi_s(f,K+L,-1,0) # Put -1 if the Initial/Final states are not set.
+ va = trellis.viterbi_combined_fs(f,K+L,0,0,dimensionality,tot_constellation,trellis.TRELLIS_EUCLIDEAN) # using viterbi_combined_fs instead of metrics_f/viterbi_s allows larger packet lengths because metrics_f is complaining for not being able to allocate large buffers. This is due to the large f.O() in this application...
+ dst = gr.vector_sink_s()
+
+ fg.connect (src,mod)
+ fg.connect (mod,isi,(add,0))
+ fg.connect (noise,(add,1))
+ #fg.connect (add,metrics)
+ #fg.connect (metrics,va,dst)
+ fg.connect (add,skip,va,dst)
+
+ fg.run()
+
+ data = dst.data()
+ ntotal = len(data) - L
+ nright=0
+ for i in range(ntotal):
+ if packet[i+L]==data[i]:
+ nright=nright+1
+ #else:
+ #print "Error in ", i
+
+ return (ntotal,ntotal-nright)
+
+
+def main(args):
+ nargs = len (args)
+ if nargs == 2:
+ esn0_db=float(args[0])
+ rep=int(args[1])
+ else:
+ sys.stderr.write ('usage: test_viterbi_equalization1.py Es/No_db repetitions\n')
+ sys.exit (1)
+
+ # system parameters
+ Kb=128*16 # packet size in bits (multiple of 16)
+ modulation = fsm_utils.pam4 # see fsm_utlis.py for available predefined modulations
+ channel = fsm_utils.c_channel # see fsm_utlis.py for available predefined test channels
+ f=trellis.fsm(len(modulation[1]),len(channel)) # generate the FSM automatically
+ bitspersymbol = int(round(math.log(f.I())/math.log(2))) # bits per FSM input symbol
+ K=Kb/bitspersymbol # packet size in trellis steps
+
+ tot_channel = fsm_utils.make_isi_lookup(modulation,channel,True) # generate the lookup table (normalize energy to 1)
+ dimensionality = tot_channel[0]
+ tot_constellation = tot_channel[1]
+ N0=pow(10.0,-esn0_db/10.0); # noise variance
+ if len(tot_constellation)/dimensionality != f.O():
+ sys.stderr.write ('Incompatible FSM output cardinality and lookup table size.\n')
+ sys.exit (1)
+
+ tot_s=0 # total number of transmitted shorts
+ terr_s=0 # total number of shorts in error
+ terr_p=0 # total number of packets in error
+
+ for i in range(rep):
+ (s,e)=run_test(f,Kb,bitspersymbol,K,channel,modulation,dimensionality,tot_constellation,N0,-long(666+i)) # run experiment with different seed to get different noise realizations
+ tot_s=tot_s+s
+ terr_s=terr_s+e
+ terr_p=terr_p+(terr_s!=0)
+ if ((i+1)%100==0) : # display progress
+ print i+1,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+ # estimate of the (short or symbol) error rate
+ print rep,terr_p, '%.2e' % ((1.0*terr_p)/(i+1)),tot_s,terr_s, '%.2e' % ((1.0*terr_s)/tot_s)
+
+
+
+if __name__ == '__main__':
+ main (sys.argv[1:])
--- /dev/null
+#
+# Copyright 2007 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+SUBDIRS = src
--- /dev/null
+#
+# Copyright 2007 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+SUBDIRS = lib python
--- /dev/null
+#
+# Copyright 2007 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
--- /dev/null
+#
+# Copyright 2007 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+EXTRA_DIST = \
+ $(bin_SCRIPTS)
+
+bin_SCRIPTS = \
+ usrp_benchmark_usb.py \
+ usrp_fft.py \
+ usrp_oscope.py \
+ usrp_print_db.py \
+ usrp_rx_cfile.py \
+ usrp_rx_nogui.py \
+ usrp_siggen.py \
+ usrp_test_counting.py \
+ usrp_test_loop.py \
+ usrp_test_loop_lfsr.py
--- /dev/null
+#!/usr/bin/env python
+#
+# Copyright 2004,2005 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+"""
+Benchmark the USB/USRP throughput. Finds the maximum full-duplex speed
+the USRP/USB combination can sustain without errors.
+
+This program does not currently give reliable results. Sorry about that...
+"""
+
+from gnuradio import gr
+from gnuradio import usrp
+from gnuradio import eng_notation
+
+import sys
+
+def run_test (usb_throughput, verbose):
+ # usb_throughput is in bytes/sec.
+ #
+ # Returns True or False
+
+ nsec = 1
+ stream_length = int (usb_throughput/2 * nsec) # length of stream to examine
+
+ adc_freq = 64e6
+ dac_freq = 128e6
+ sizeof_sample = 2 * gr.sizeof_short
+
+ usb_throughput_in_samples = usb_throughput / sizeof_sample
+
+ # allocate usb throughput 50/50 between Tx and Rx
+
+ tx_interp = int (dac_freq) / int (usb_throughput_in_samples / 2)
+ rx_decim = int (adc_freq) / int (usb_throughput_in_samples / 2)
+
+ # print "tx_interp =", tx_interp, "rx_decim =", rx_decim
+ assert (tx_interp == 2 * rx_decim)
+
+ fg = gr.flow_graph ()
+
+ # Build the Tx pipeline
+ data_src = gr.lfsr_32k_source_s ()
+ src_head = gr.head (gr.sizeof_short, int (stream_length * 2))
+ usrp_tx = usrp.sink_s (0, tx_interp)
+ fg.connect (data_src, src_head, usrp_tx)
+
+ # and the Rx pipeline
+ usrp_rx = usrp.source_s (0, rx_decim, 1, 0x32103210, usrp.FPGA_MODE_LOOPBACK)
+ head = gr.head (gr.sizeof_short, stream_length)
+ check = gr.check_lfsr_32k_s ()
+ fg.connect (usrp_rx, head, check)
+
+ fg.run ()
+
+ ntotal = check.ntotal ()
+ nright = check.nright ()
+ runlength = check.runlength ()
+
+ if verbose:
+ print "usb_throughput =", eng_notation.num_to_str (usb_throughput)
+ print "ntotal =", ntotal
+ print "nright =", nright
+ print "runlength =", runlength
+ print "delta =", ntotal - runlength
+
+ return runlength >= stream_length - 80000
+
+def main ():
+ verbose = True
+ best_rate = 0
+ usb_rate = [ 2e6, 4e6, 8e6, 16e6, 32e6 ]
+ #usb_rate = [ 32e6, 32e6, 32e6, 32e6, 32e6 ]
+ # usb_rate.reverse ()
+ for rate in usb_rate:
+ sys.stdout.write ("Testing %sB/sec... " % (eng_notation.num_to_str (rate)))
+ sys.stdout.flush ()
+ ok = run_test (rate, verbose)
+ if ok:
+ best_rate = max (best_rate, rate)
+ sys.stdout.write ("OK\n")
+ else:
+ sys.stdout.write ("FAILED\n")
+
+ print "Max USB/USRP throughput = %sB/sec" % (eng_notation.num_to_str (best_rate),)
+
+if __name__ == '__main__':
+ main ()
--- /dev/null
+#!/usr/bin/env python
+#
+# Copyright 2004,2005 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+from gnuradio import gr, gru
+from gnuradio import usrp
+from gnuradio import eng_notation
+from gnuradio.eng_option import eng_option
+from gnuradio.wxgui import stdgui, fftsink, waterfallsink, scopesink, form, slider
+from optparse import OptionParser
+import wx
+import sys
+
+
+def pick_subdevice(u):
+ """
+ The user didn't specify a subdevice on the command line.
+ If there's a daughterboard on A, select A.
+ If there's a daughterboard on B, select B.
+ Otherwise, select A.
+ """
+ if u.db[0][0].dbid() >= 0: # dbid is < 0 if there's no d'board or a problem
+ return (0, 0)
+ if u.db[1][0].dbid() >= 0:
+ return (1, 0)
+ return (0, 0)
+
+
+class app_flow_graph(stdgui.gui_flow_graph):
+ def __init__(self, frame, panel, vbox, argv):
+ stdgui.gui_flow_graph.__init__(self)
+
+ self.frame = frame
+ self.panel = panel
+
+ parser = OptionParser(option_class=eng_option)
+ parser.add_option("-w", "--which", type="int", default=0,
+ help="select which USRP (0, 1, ...) default is %default",
+ metavar="NUM")
+ parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=None,
+ help="select USRP Rx side A or B (default=first one with a daughterboard)")
+ parser.add_option("-d", "--decim", type="int", default=16,
+ help="set fgpa decimation rate to DECIM [default=%default]")
+ parser.add_option("-f", "--freq", type="eng_float", default=None,
+ help="set frequency to FREQ", metavar="FREQ")
+ parser.add_option("-g", "--gain", type="eng_float", default=None,
+ help="set gain in dB (default is midpoint)")
+ parser.add_option("-W", "--waterfall", action="store_true", default=False,
+ help="Enable waterfall display")
+ parser.add_option("-8", "--width-8", action="store_true", default=False,
+ help="Enable 8-bit samples across USB")
+ parser.add_option("-S", "--oscilloscope", action="store_true", default=False,
+ help="Enable oscilloscope display")
+ (options, args) = parser.parse_args()
+ if len(args) != 0:
+ parser.print_help()
+ sys.exit(1)
+
+ self.show_debug_info = True
+
+ # build the graph
+
+ self.u = usrp.source_c(which=options.which, decim_rate=options.decim)
+ if options.rx_subdev_spec is None:
+ options.rx_subdev_spec = pick_subdevice(self.u)
+ self.u.set_mux(usrp.determine_rx_mux_value(self.u, options.rx_subdev_spec))
+
+ if options.width_8:
+ width = 8
+ shift = 8
+ format = self.u.make_format(width, shift)
+ print "format =", hex(format)
+ r = self.u.set_format(format)
+ print "set_format =", r
+
+ # determine the daughterboard subdevice we're using
+ self.subdev = usrp.selected_subdev(self.u, options.rx_subdev_spec)
+
+ input_rate = self.u.adc_freq() / self.u.decim_rate()
+
+ if options.waterfall:
+ self.scope = \
+ waterfallsink.waterfall_sink_c (self, panel, fft_size=1024, sample_rate=input_rate)
+ elif options.oscilloscope:
+ self.scope = scopesink.scope_sink_c(self, panel, sample_rate=input_rate)
+ else:
+ self.scope = fftsink.fft_sink_c (self, panel, fft_size=1024, sample_rate=input_rate)
+
+ self.connect(self.u, self.scope)
+
+ self._build_gui(vbox)
+
+ # set initial values
+
+ if options.gain is None:
+ # if no gain was specified, use the mid-point in dB
+ g = self.subdev.gain_range()
+ options.gain = float(g[0]+g[1])/2
+
+ if options.freq is None:
+ # if no freq was specified, use the mid-point
+ r = self.subdev.freq_range()
+ options.freq = float(r[0]+r[1])/2
+
+ self.set_gain(options.gain)
+
+ if self.show_debug_info:
+ self.myform['decim'].set_value(self.u.decim_rate())
+ self.myform['fs@usb'].set_value(self.u.adc_freq() / self.u.decim_rate())
+ self.myform['dbname'].set_value(self.subdev.name())
+ self.myform['baseband'].set_value(0)
+ self.myform['ddc'].set_value(0)
+
+ if not(self.set_freq(options.freq)):
+ self._set_status_msg("Failed to set initial frequency")
+
+ def _set_status_msg(self, msg):
+ self.frame.GetStatusBar().SetStatusText(msg, 0)
+
+ def _build_gui(self, vbox):
+
+ def _form_set_freq(kv):
+ return self.set_freq(kv['freq'])
+
+ vbox.Add(self.scope.win, 10, wx.EXPAND)
+
+ # add control area at the bottom
+ self.myform = myform = form.form()
+ hbox = wx.BoxSizer(wx.HORIZONTAL)
+ hbox.Add((5,0), 0, 0)
+ myform['freq'] = form.float_field(
+ parent=self.panel, sizer=hbox, label="Center freq", weight=1,
+ callback=myform.check_input_and_call(_form_set_freq, self._set_status_msg))
+
+ hbox.Add((5,0), 0, 0)
+ g = self.subdev.gain_range()
+ myform['gain'] = form.slider_field(parent=self.panel, sizer=hbox, label="Gain",
+ weight=3,
+ min=int(g[0]), max=int(g[1]),
+ callback=self.set_gain)
+
+ hbox.Add((5,0), 0, 0)
+ vbox.Add(hbox, 0, wx.EXPAND)
+
+ self._build_subpanel(vbox)
+
+ def _build_subpanel(self, vbox_arg):
+ # build a secondary information panel (sometimes hidden)
+
+ # FIXME figure out how to have this be a subpanel that is always
+ # created, but has its visibility controlled by foo.Show(True/False)
+
+ def _form_set_decim(kv):
+ return self.set_decim(kv['decim'])
+
+ if not(self.show_debug_info):
+ return
+
+ panel = self.panel
+ vbox = vbox_arg
+ myform = self.myform
+
+ #panel = wx.Panel(self.panel, -1)
+ #vbox = wx.BoxSizer(wx.VERTICAL)
+
+ hbox = wx.BoxSizer(wx.HORIZONTAL)
+ hbox.Add((5,0), 0)
+
+ myform['decim'] = form.int_field(
+ parent=panel, sizer=hbox, label="Decim",
+ callback=myform.check_input_and_call(_form_set_decim, self._set_status_msg))
+
+ hbox.Add((5,0), 1)
+ myform['fs@usb'] = form.static_float_field(
+ parent=panel, sizer=hbox, label="Fs@USB")
+
+ hbox.Add((5,0), 1)
+ myform['dbname'] = form.static_text_field(
+ parent=panel, sizer=hbox)
+
+ hbox.Add((5,0), 1)
+ myform['baseband'] = form.static_float_field(
+ parent=panel, sizer=hbox, label="Analog BB")
+
+ hbox.Add((5,0), 1)
+ myform['ddc'] = form.static_float_field(
+ parent=panel, sizer=hbox, label="DDC")
+
+ hbox.Add((5,0), 0)
+ vbox.Add(hbox, 0, wx.EXPAND)
+
+
+ def set_freq(self, target_freq):
+ """
+ Set the center frequency we're interested in.
+
+ @param target_freq: frequency in Hz
+ @rypte: bool
+
+ Tuning is a two step process. First we ask the front-end to
+ tune as close to the desired frequency as it can. Then we use
+ the result of that operation and our target_frequency to
+ determine the value for the digital down converter.
+ """
+ r = self.u.tune(0, self.subdev, target_freq)
+
+ if r:
+ self.myform['freq'].set_value(target_freq) # update displayed value
+ if self.show_debug_info:
+ self.myform['baseband'].set_value(r.baseband_freq)
+ self.myform['ddc'].set_value(r.dxc_freq)
+ return True
+
+ return False
+
+ def set_gain(self, gain):
+ self.myform['gain'].set_value(gain) # update displayed value
+ self.subdev.set_gain(gain)
+
+ def set_decim(self, decim):
+ ok = self.u.set_decim_rate(decim)
+ if not ok:
+ print "set_decim failed"
+ input_rate = self.u.adc_freq() / self.u.decim_rate()
+ self.scope.set_sample_rate(input_rate)
+ if self.show_debug_info: # update displayed values
+ self.myform['decim'].set_value(self.u.decim_rate())
+ self.myform['fs@usb'].set_value(self.u.adc_freq() / self.u.decim_rate())
+ return ok
+
+def main ():
+ app = stdgui.stdapp(app_flow_graph, "USRP FFT", nstatus=1)
+ app.MainLoop()
+
+if __name__ == '__main__':
+ main ()
--- /dev/null
+#!/usr/bin/env python
+#
+# Copyright 2004,2005,2006 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+# print "Loading revised usrp_oscope with additional options for scopesink..."
+
+from gnuradio import gr, gru
+from gnuradio import usrp
+from gnuradio import eng_notation
+from gnuradio.eng_option import eng_option
+from gnuradio.wxgui import stdgui, fftsink, waterfallsink, scopesink, form, slider
+from optparse import OptionParser
+import wx
+import sys
+
+
+def pick_subdevice(u):
+ """
+ The user didn't specify a subdevice on the command line.
+ If there's a daughterboard on A, select A.
+ If there's a daughterboard on B, select B.
+ Otherwise, select A.
+ """
+ if u.db[0][0].dbid() >= 0: # dbid is < 0 if there's no d'board or a problem
+ return (0, 0)
+ if u.db[1][0].dbid() >= 0:
+ return (1, 0)
+ return (0, 0)
+
+
+class app_flow_graph(stdgui.gui_flow_graph):
+ def __init__(self, frame, panel, vbox, argv):
+ stdgui.gui_flow_graph.__init__(self)
+
+ self.frame = frame
+ self.panel = panel
+
+ parser = OptionParser(option_class=eng_option)
+ parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=None,
+ help="select USRP Rx side A or B (default=first one with a daughterboard)")
+ parser.add_option("-d", "--decim", type="int", default=16,
+ help="set fgpa decimation rate to DECIM [default=%default]")
+ parser.add_option("-f", "--freq", type="eng_float", default=None,
+ help="set frequency to FREQ", metavar="FREQ")
+ parser.add_option("-g", "--gain", type="eng_float", default=None,
+ help="set gain in dB (default is midpoint)")
+ parser.add_option("-8", "--width-8", action="store_true", default=False,
+ help="Enable 8-bit samples across USB")
+ parser.add_option("-n", "--frame-decim", type="int", default=1,
+ help="set oscope frame decimation factor to n [default=1]")
+ parser.add_option("-v", "--v-scale", type="eng_float", default=1000,
+ help="set oscope initial V/div to SCALE [default=%default]")
+ parser.add_option("-t", "--t-scale", type="eng_float", default=49e-6,
+ help="set oscope initial s/div to SCALE [default=50us]")
+ (options, args) = parser.parse_args()
+ if len(args) != 0:
+ parser.print_help()
+ sys.exit(1)
+
+ self.show_debug_info = True
+
+ # build the graph
+
+ self.u = usrp.source_c(decim_rate=options.decim)
+ if options.rx_subdev_spec is None:
+ options.rx_subdev_spec = pick_subdevice(self.u)
+ self.u.set_mux(usrp.determine_rx_mux_value(self.u, options.rx_subdev_spec))
+
+ if options.width_8:
+ width = 8
+ shift = 8
+ format = self.u.make_format(width, shift)
+ #print "format =", hex(format)
+ r = self.u.set_format(format)
+ #print "set_format =", r
+
+ # determine the daughterboard subdevice we're using
+ self.subdev = usrp.selected_subdev(self.u, options.rx_subdev_spec)
+
+ input_rate = self.u.adc_freq() / self.u.decim_rate()
+
+ self.scope = scopesink.scope_sink_c(self, panel, sample_rate=input_rate,
+ frame_decim=options.frame_decim,
+ v_scale=options.v_scale,
+ t_scale=options.t_scale)
+ self.connect(self.u, self.scope)
+
+ self._build_gui(vbox)
+
+ # set initial values
+
+ if options.gain is None:
+ # if no gain was specified, use the mid-point in dB
+ g = self.subdev.gain_range()
+ options.gain = float(g[0]+g[1])/2
+
+ if options.freq is None:
+ # if no freq was specified, use the mid-point
+ r = self.subdev.freq_range()
+ options.freq = float(r[0]+r[1])/2
+
+ self.set_gain(options.gain)
+
+ if self.show_debug_info:
+ self.myform['decim'].set_value(self.u.decim_rate())
+ self.myform['fs@usb'].set_value(self.u.adc_freq() / self.u.decim_rate())
+ self.myform['dbname'].set_value(self.subdev.name())
+ self.myform['baseband'].set_value(0)
+ self.myform['ddc'].set_value(0)
+
+ if not(self.set_freq(options.freq)):
+ self._set_status_msg("Failed to set initial frequency")
+
+
+ def _set_status_msg(self, msg):
+ self.frame.GetStatusBar().SetStatusText(msg, 0)
+
+ def _build_gui(self, vbox):
+
+ def _form_set_freq(kv):
+ return self.set_freq(kv['freq'])
+
+ vbox.Add(self.scope.win, 10, wx.EXPAND)
+
+ # add control area at the bottom
+ self.myform = myform = form.form()
+ hbox = wx.BoxSizer(wx.HORIZONTAL)
+ hbox.Add((5,0), 0, 0)
+ myform['freq'] = form.float_field(
+ parent=self.panel, sizer=hbox, label="Center freq", weight=1,
+ callback=myform.check_input_and_call(_form_set_freq, self._set_status_msg))
+
+ hbox.Add((5,0), 0, 0)
+ g = self.subdev.gain_range()
+ myform['gain'] = form.slider_field(parent=self.panel, sizer=hbox, label="Gain",
+ weight=3,
+ min=int(g[0]), max=int(g[1]),
+ callback=self.set_gain)
+
+ hbox.Add((5,0), 0, 0)
+ vbox.Add(hbox, 0, wx.EXPAND)
+
+ self._build_subpanel(vbox)
+
+ def _build_subpanel(self, vbox_arg):
+ # build a secondary information panel (sometimes hidden)
+
+ # FIXME figure out how to have this be a subpanel that is always
+ # created, but has its visibility controlled by foo.Show(True/False)
+
+ def _form_set_decim(kv):
+ return self.set_decim(kv['decim'])
+
+ if not(self.show_debug_info):
+ return
+
+ panel = self.panel
+ vbox = vbox_arg
+ myform = self.myform
+
+ #panel = wx.Panel(self.panel, -1)
+ #vbox = wx.BoxSizer(wx.VERTICAL)
+
+ hbox = wx.BoxSizer(wx.HORIZONTAL)
+ hbox.Add((5,0), 0)
+
+ myform['decim'] = form.int_field(
+ parent=panel, sizer=hbox, label="Decim",
+ callback=myform.check_input_and_call(_form_set_decim, self._set_status_msg))
+
+ hbox.Add((5,0), 1)
+ myform['fs@usb'] = form.static_float_field(
+ parent=panel, sizer=hbox, label="Fs@USB")
+
+ hbox.Add((5,0), 1)
+ myform['dbname'] = form.static_text_field(
+ parent=panel, sizer=hbox)
+
+ hbox.Add((5,0), 1)
+ myform['baseband'] = form.static_float_field(
+ parent=panel, sizer=hbox, label="Analog BB")
+
+ hbox.Add((5,0), 1)
+ myform['ddc'] = form.static_float_field(
+ parent=panel, sizer=hbox, label="DDC")
+
+ hbox.Add((5,0), 0)
+ vbox.Add(hbox, 0, wx.EXPAND)
+
+
+ def set_freq(self, target_freq):
+ """
+ Set the center frequency we're interested in.
+
+ @param target_freq: frequency in Hz
+ @rypte: bool
+
+ Tuning is a two step process. First we ask the front-end to
+ tune as close to the desired frequency as it can. Then we use
+ the result of that operation and our target_frequency to
+ determine the value for the digital down converter.
+ """
+ r = usrp.tune(self.u, 0, self.subdev, target_freq)
+
+ if r:
+ self.myform['freq'].set_value(target_freq) # update displayed value
+ if self.show_debug_info:
+ self.myform['baseband'].set_value(r.baseband_freq)
+ self.myform['ddc'].set_value(r.dxc_freq)
+ return True
+
+ return False
+
+ def set_gain(self, gain):
+ self.myform['gain'].set_value(gain) # update displayed value
+ self.subdev.set_gain(gain)
+
+ def set_decim(self, decim):
+ ok = self.u.set_decim_rate(decim)
+ if not ok:
+ print "set_decim failed"
+ input_rate = self.u.adc_freq() / self.u.decim_rate()
+ self.scope.set_sample_rate(input_rate)
+ if self.show_debug_info: # update displayed values
+ self.myform['decim'].set_value(self.u.decim_rate())
+ self.myform['fs@usb'].set_value(self.u.adc_freq() / self.u.decim_rate())
+ return ok
+
+def main ():
+ app = stdgui.stdapp(app_flow_graph, "USRP O'scope", nstatus=1)
+ app.MainLoop()
+
+if __name__ == '__main__':
+ main ()
--- /dev/null
+#!/usr/bin/env python
+#
+# Copyright 2006,2007 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+#!/usr/bin/env python
+
+from gnuradio import gr
+from gnuradio import usrp
+from optparse import OptionParser
+from usrpm import usrp_dbid
+
+u_source = usrp.source_c()
+u_sink = usrp.sink_c()
+
+subdev_Ar = usrp.selected_subdev(u_source, (0,0))
+subdev_Br = usrp.selected_subdev(u_source, (1,0))
+subdev_At = usrp.selected_subdev(u_sink, (0,0))
+subdev_Bt = usrp.selected_subdev(u_sink, (1,0))
+
+print "RX d'board %s" % (subdev_Ar.side_and_name(),)
+print "RX d'board %s" % (subdev_Br.side_and_name(),)
+print "TX d'board %s" % (subdev_At.side_and_name(),)
+print "TX d'board %s" % (subdev_Bt.side_and_name(),)
+
--- /dev/null
+#!/usr/bin/env python
+
+"""
+Read samples from the USRP and write to file formatted as binary
+outputs single precision complex float values or complex short values (interleaved 16 bit signed short integers).
+
+"""
+
+from gnuradio import gr, eng_notation
+from gnuradio import audio
+from gnuradio import usrp
+from gnuradio.eng_option import eng_option
+from optparse import OptionParser
+
+class my_graph(gr.flow_graph):
+
+ def __init__(self):
+ gr.flow_graph.__init__(self)
+
+ usage="%prog: [options] output_filename"
+ parser = OptionParser(option_class=eng_option, usage=usage)
+ parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=(0, 0),
+ help="select USRP Rx side A or B (default=A)")
+ parser.add_option("-d", "--decim", type="int", default=16,
+ help="set fgpa decimation rate to DECIM [default=%default]")
+ parser.add_option("-f", "--freq", type="eng_float", default=None,
+ help="set frequency to FREQ", metavar="FREQ")
+ parser.add_option("-g", "--gain", type="eng_float", default=None,
+ help="set gain in dB (default is midpoint)")
+ parser.add_option("-8", "--width-8", action="store_true", default=False,
+ help="Enable 8-bit samples across USB")
+ parser.add_option( "--no-hb", action="store_true", default=False,
+ help="don't use halfband filter in usrp")
+ parser.add_option( "-s","--output-shorts", action="store_true", default=False,
+ help="output interleaved shorts in stead of complex floats")
+ parser.add_option("-N", "--nsamples", type="eng_float", default=None,
+ help="number of samples to collect [default=+inf]")
+ (options, args) = parser.parse_args ()
+ if len(args) != 1:
+ parser.print_help()
+ raise SystemExit, 1
+ filename = args[0]
+
+ if options.freq is None:
+ parser.print_help()
+ sys.stderr.write('You must specify the frequency with -f FREQ\n');
+ raise SystemExit, 1
+
+ # build the graph
+ if options.no_hb or (options.decim<8):
+ self.fpga_filename="std_4rx_0tx.rbf" #Min decimation of this firmware is 4. contains 4 Rx paths without halfbands and 0 tx paths.
+ if options.output_shorts:
+ self.u = usrp.source_s(decim_rate=options.decim,fpga_filename=self.fpga_filename)
+ else:
+ self.u = usrp.source_c(decim_rate=options.decim,fpga_filename=self.fpga_filename)
+ else:
+ #standard fpga firmware "std_2rxhb_2tx.rbf" contains 2 Rx paths with halfband filters and 2 tx paths (the default) min decimation 8
+ if options.output_shorts:
+ self.u = usrp.source_s(decim_rate=options.decim)
+ else:
+ self.u = usrp.source_c(decim_rate=options.decim)
+ if options.width_8:
+ sample_width = 8
+ sample_shift = 8
+ format = self.u.make_format(sample_width, sample_shift)
+ r = self.u.set_format(format)
+ if options.output_shorts:
+ self.dst = gr.file_sink(gr.sizeof_short, filename)
+ else:
+ self.dst = gr.file_sink(gr.sizeof_gr_complex, filename)
+ if options.nsamples is None:
+ self.connect(self.u, self.dst)
+ else:
+ if options.output_shorts:
+ self.head = gr.head(gr.sizeof_short, int(options.nsamples)*2)
+ else:
+ self.head = gr.head(gr.sizeof_gr_complex, int(options.nsamples))
+ self.connect(self.u, self.head, self.dst)
+
+ if options.rx_subdev_spec is None:
+ options.rx_subdev_spec = usrp.pick_rx_subdevice(self.u)
+ self.u.set_mux(usrp.determine_rx_mux_value(self.u, options.rx_subdev_spec))
+
+ # determine the daughterboard subdevice we're using
+ self.subdev = usrp.selected_subdev(self.u, options.rx_subdev_spec)
+ print "Using RX d'board %s" % (self.subdev.side_and_name(),)
+ input_rate = self.u.adc_freq() / self.u.decim_rate()
+ print "USB sample rate %s" % (eng_notation.num_to_str(input_rate))
+
+ if options.gain is None:
+ # if no gain was specified, use the mid-point in dB
+ g = self.subdev.gain_range()
+ options.gain = float(g[0]+g[1])/2
+
+ self.subdev.set_gain(options.gain)
+
+ r = self.u.tune(0, self.subdev, options.freq)
+ if not r:
+ sys.stderr.write('Failed to set frequency\n')
+ raise SystemExit, 1
+
+
+if __name__ == '__main__':
+ try:
+ my_graph().run()
+ except KeyboardInterrupt:
+ pass
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr, gru, usrp, optfir, audio, eng_notation, blks
+from gnuradio.eng_option import eng_option
+from optparse import OptionParser
+
+"""
+This example application demonstrates receiving and demodulating
+different types of signals using the USRP.
+
+A receive chain is built up of the following signal processing
+blocks:
+
+USRP - Daughter board source generating complex baseband signal.
+CHAN - Low pass filter to select channel bandwidth
+RFSQL - RF squelch zeroing output when input power below threshold
+AGC - Automatic gain control leveling signal at [-1.0, +1.0]
+DEMOD - Demodulation block appropriate to selected signal type.
+ This converts the complex baseband to real audio frequencies,
+ and applies an appropriate low pass decimating filter.
+CTCSS - Optional tone squelch zeroing output when tone is not present.
+RSAMP - Resampler block to convert audio sample rate to user specified
+ sound card output rate.
+AUDIO - Audio sink for playing final output to speakers.
+
+The following are required command line parameters:
+
+-f FREQ USRP receive frequency
+-m MOD Modulation type, select from AM, FM, or WFM
+
+The following are optional command line parameters:
+
+-R SUBDEV Daughter board specification, defaults to first found
+-c FREQ Calibration offset. Gets added to receive frequency.
+ Defaults to 0.0 Hz.
+-g GAIN Daughterboard gain setting. Defaults to mid-range.
+-o RATE Sound card output rate. Defaults to 32000. Useful if
+ your sound card only accepts particular sample rates.
+-r RFSQL RF squelch in db. Defaults to -50.0.
+-p FREQ CTCSS frequency. Opens squelch when tone is present.
+
+Once the program is running, ctrl-break (Ctrl-C) stops operation.
+
+Please see fm_demod.py and am_demod.py for details of the demodulation
+blocks.
+"""
+
+# (usrp_decim, channel_decim, audio_decim, channel_pass, channel_stop, demod)
+demod_params = {
+ 'AM' : (250, 16, 1, 5000, 8000, blks.demod_10k0a3e_cf),
+ 'FM' : (250, 8, 4, 8000, 9000, blks.demod_20k0f3e_cf),
+ 'WFM' : (250, 1, 8, 90000, 100000, blks.demod_200kf3e_cf)
+ }
+
+class usrp_source_c(gr.hier_block):
+ """
+ Create a USRP source object supplying complex floats.
+
+ Selects user supplied subdevice or chooses first available one.
+
+ Calibration value is the offset from the tuned frequency to
+ the actual frequency.
+ """
+ def __init__(self, fg, subdev_spec, decim, gain=None, calibration=0.0):
+ self._decim = decim
+ self._src = usrp.source_c()
+ if subdev_spec is None:
+ subdev_spec = usrp.pick_rx_subdevice(self._src)
+ self._subdev = usrp.selected_subdev(self._src, subdev_spec)
+ self._src.set_mux(usrp.determine_rx_mux_value(self._src, subdev_spec))
+ self._src.set_decim_rate(self._decim)
+
+ # If no gain specified, set to midrange
+ if gain is None:
+ g = self._subdev.gain_range()
+ gain = (g[0]+g[1])/2.0
+
+ self._subdev.set_gain(gain)
+ self._cal = calibration
+ gr.hier_block.__init__(self, fg, self._src, self._src)
+
+ def tune(self, freq):
+ result = usrp.tune(self._src, 0, self._subdev, freq+self._cal)
+ # TODO: deal with residual
+
+ def rate(self):
+ return self._src.adc_rate()/self._decim
+
+class app_flow_graph(gr.flow_graph):
+ def __init__(self, options, args):
+ gr.flow_graph.__init__(self)
+ self.options = options
+ self.args = args
+
+ (usrp_decim, channel_decim, audio_decim,
+ channel_pass, channel_stop, demod) = demod_params[options.modulation]
+
+ USRP = usrp_source_c(self, # Flow graph
+ options.rx_subdev_spec, # Daugherboard spec
+ usrp_decim, # IF decimation ratio
+ options.gain, # Receiver gain
+ options.calibration) # Frequency offset
+ USRP.tune(options.frequency)
+
+ if_rate = USRP.rate()
+ channel_rate = if_rate // channel_decim
+ audio_rate = channel_rate // audio_decim
+
+ CHAN_taps = optfir.low_pass(1.0, # Filter gain
+ if_rate, # Sample rate
+ channel_pass, # One sided modulation bandwidth
+ channel_stop, # One sided channel bandwidth
+ 0.1, # Passband ripple
+ 60) # Stopband attenuation
+
+ CHAN = gr.freq_xlating_fir_filter_ccf(channel_decim, # Decimation rate
+ CHAN_taps, # Filter taps
+ 0.0, # Offset frequency
+ if_rate) # Sample rate
+
+ RFSQL = gr.pwr_squelch_cc(options.rf_squelch, # Power threshold
+ 125.0/channel_rate, # Time constant
+ channel_rate/20, # 50ms rise/fall
+ False) # Zero, not gate output
+
+ AGC = gr.agc_cc(1.0/channel_rate, # Time constant
+ 1.0, # Reference power
+ 1.0, # Initial gain
+ 1.0) # Maximum gain
+
+ DEMOD = demod(self, channel_rate, audio_decim)
+
+ # From RF to audio
+ self.connect(USRP, CHAN, RFSQL, AGC, DEMOD)
+
+ # Optionally add CTCSS and RSAMP if needed
+ tail = DEMOD
+ if options.ctcss != None and options.ctcss > 60.0:
+ CTCSS = gr.ctcss_squelch_ff(audio_rate, # Sample rate
+ options.ctcss) # Squelch tone
+ self.connect(DEMOD, CTCSS)
+ tail = CTCSS
+
+ if options.output_rate != audio_rate:
+ out_lcm = gru.lcm(audio_rate, options.output_rate)
+ out_interp = int(out_lcm // audio_rate)
+ out_decim = int(out_lcm // options.output_rate)
+ RSAMP = blks.rational_resampler_fff(self, out_interp, out_decim)
+ self.connect(tail, RSAMP)
+ tail = RSAMP
+
+ # Send to default audio output
+ AUDIO = audio.sink(options.output_rate, "")
+ self.connect(tail, AUDIO)
+
+def main():
+ parser = OptionParser(option_class=eng_option)
+ parser.add_option("-f", "--frequency", type="eng_float",
+ help="set receive frequency to Hz", metavar="Hz")
+ parser.add_option("-R", "--rx-subdev-spec", type="subdev",
+ help="select USRP Rx side A or B", metavar="SUBDEV")
+ parser.add_option("-c", "--calibration", type="eng_float", default=0.0,
+ help="set frequency offset to Hz", metavar="Hz")
+ parser.add_option("-g", "--gain", type="int", default=None,
+ help="set RF gain", metavar="dB")
+ parser.add_option("-m", "--modulation", type="choice", choices=('AM','FM','WFM'),
+ help="set modulation type (AM,FM)", metavar="TYPE")
+ parser.add_option("-o", "--output-rate", type="int", default=32000,
+ help="set audio output rate to RATE", metavar="RATE")
+ parser.add_option("-r", "--rf-squelch", type="eng_float", default=-50.0,
+ help="set RF squelch to dB", metavar="dB")
+ parser.add_option("-p", "--ctcss", type="float",
+ help="set CTCSS squelch to FREQ", metavar="FREQ")
+ (options, args) = parser.parse_args()
+
+ if options.frequency < 1e6:
+ options.frequency *= 1e6
+
+ fg = app_flow_graph(options, args)
+ try:
+ fg.run()
+ except KeyboardInterrupt:
+ pass
+
+if __name__ == "__main__":
+ main()
--- /dev/null
+#!/usr/bin/env python
+
+from gnuradio import gr, gru
+from gnuradio import usrp
+from gnuradio.eng_option import eng_option
+from gnuradio import eng_notation
+from optparse import OptionParser
+import sys
+
+
+class my_graph(gr.flow_graph):
+ def __init__ (self):
+ gr.flow_graph.__init__(self)
+
+ # controllable values
+ self.interp = 64
+ self.waveform_type = gr.GR_SIN_WAVE
+ self.waveform_ampl = 16000
+ self.waveform_freq = 100.12345e3
+ self.waveform_offset = 0
+ self._instantiate_blocks ()
+ self.set_waveform_type (self.waveform_type)
+
+ def usb_freq (self):
+ return self.u.dac_freq() / self.interp
+
+ def usb_throughput (self):
+ return self.usb_freq () * 4
+
+ def set_waveform_type (self, type):
+ '''
+ valid waveform types are: gr.GR_SIN_WAVE, gr.GR_CONST_WAVE,
+ gr.GR_UNIFORM and gr.GR_GAUSSIAN
+ '''
+ self._configure_graph (type)
+ self.waveform_type = type
+
+ def set_waveform_ampl (self, ampl):
+ self.waveform_ampl = ampl
+ self.siggen.set_amplitude (ampl)
+ self.noisegen.set_amplitude (ampl)
+
+ def set_waveform_freq (self, freq):
+ self.waveform_freq = freq
+ self.siggen.set_frequency (freq)
+
+ def set_waveform_offset (self, offset):
+ self.waveform_offset = offset
+ self.siggen.set_offset (offset)
+
+ def set_interpolator (self, interp):
+ self.interp = interp
+ self.siggen.set_sampling_freq (self.usb_freq ())
+ self.u.set_interp_rate (interp)
+
+ def _instantiate_blocks (self):
+ self.src = None
+ self.u = usrp.sink_c (0, self.interp)
+
+ self.siggen = gr.sig_source_c (self.usb_freq (),
+ gr.GR_SIN_WAVE,
+ self.waveform_freq,
+ self.waveform_ampl,
+ self.waveform_offset)
+
+ self.noisegen = gr.noise_source_c (gr.GR_UNIFORM,
+ self.waveform_ampl)
+
+ # self.file_sink = gr.file_sink (gr.sizeof_gr_complex, "siggen.dat")
+
+ def _configure_graph (self, type):
+ was_running = self.is_running ()
+ if was_running:
+ self.stop ()
+ self.disconnect_all ()
+ if type == gr.GR_SIN_WAVE or type == gr.GR_CONST_WAVE:
+ self.connect (self.siggen, self.u)
+ # self.connect (self.siggen, self.file_sink)
+ self.siggen.set_waveform (type)
+ self.src = self.siggen
+ elif type == gr.GR_UNIFORM or type == gr.GR_GAUSSIAN:
+ self.connect (self.noisegen, self.u)
+ self.noisegen.set_type (type)
+ self.src = self.noisegen
+ else:
+ raise ValueError, type
+ if was_running:
+ self.start ()
+
+ def set_freq(self, target_freq):
+ """
+ Set the center frequency we're interested in.
+
+ @param target_freq: frequency in Hz
+ @rypte: bool
+
+ Tuning is a two step process. First we ask the front-end to
+ tune as close to the desired frequency as it can. Then we use
+ the result of that operation and our target_frequency to
+ determine the value for the digital up converter.
+ """
+ r = self.u.tune(self.subdev._which, self.subdev, target_freq)
+ if r:
+ #print "r.baseband_freq =", eng_notation.num_to_str(r.baseband_freq)
+ #print "r.dxc_freq =", eng_notation.num_to_str(r.dxc_freq)
+ #print "r.residual_freq =", eng_notation.num_to_str(r.residual_freq)
+ #print "r.inverted =", r.inverted
+ return True
+
+ return False
+
+
+
+def main ():
+ parser = OptionParser (option_class=eng_option)
+ parser.add_option ("-T", "--tx-subdev-spec", type="subdev", default=(0, 0),
+ help="select USRP Tx side A or B")
+ parser.add_option ("-f", "--rf-freq", type="eng_float", default=None,
+ help="set RF center frequency to FREQ")
+ parser.add_option ("-i", "--interp", type="int", default=64,
+ help="set fgpa interpolation rate to INTERP [default=%default]")
+
+ parser.add_option ("--sine", dest="type", action="store_const", const=gr.GR_SIN_WAVE,
+ help="generate a complex sinusoid [default]", default=gr.GR_SIN_WAVE)
+ parser.add_option ("--const", dest="type", action="store_const", const=gr.GR_CONST_WAVE,
+ help="generate a constant output")
+ parser.add_option ("--gaussian", dest="type", action="store_const", const=gr.GR_GAUSSIAN,
+ help="generate Gaussian random output")
+ parser.add_option ("--uniform", dest="type", action="store_const", const=gr.GR_UNIFORM,
+ help="generate Uniform random output")
+
+ parser.add_option ("-w", "--waveform-freq", type="eng_float", default=100e3,
+ help="set waveform frequency to FREQ [default=%default]")
+ parser.add_option ("-a", "--amplitude", type="eng_float", default=16e3,
+ help="set waveform amplitude to AMPLITUDE [default=%default]", metavar="AMPL")
+ parser.add_option ("-o", "--offset", type="eng_float", default=0,
+ help="set waveform offset to OFFSET [default=%default]")
+ (options, args) = parser.parse_args ()
+
+ if len(args) != 0:
+ parser.print_help()
+ raise SystemExit
+
+ if options.rf_freq is None:
+ sys.stderr.write("usrp_siggen: must specify RF center frequency with -f RF_FREQ\n")
+ parser.print_help()
+ raise SystemExit
+
+ fg = my_graph()
+ fg.set_interpolator (options.interp)
+ fg.set_waveform_type (options.type)
+ fg.set_waveform_freq (options.waveform_freq)
+ fg.set_waveform_ampl (options.amplitude)
+ fg.set_waveform_offset (options.offset)
+
+ # determine the daughterboard subdevice we're using
+ if options.tx_subdev_spec is None:
+ options.tx_subdev_spec = usrp.pick_tx_subdevice(fg.u)
+
+ m = usrp.determine_tx_mux_value(fg.u, options.tx_subdev_spec)
+ #print "mux = %#04x" % (m,)
+ fg.u.set_mux(m)
+ fg.subdev = usrp.selected_subdev(fg.u, options.tx_subdev_spec)
+ print "Using TX d'board %s" % (fg.subdev.side_and_name(),)
+
+ fg.subdev.set_gain(fg.subdev.gain_range()[1]) # set max Tx gain
+
+ if not fg.set_freq(options.rf_freq):
+ sys.stderr.write('Failed to set RF frequency\n')
+ raise SystemExit
+
+ fg.subdev.set_enable(True) # enable transmitter
+
+ try:
+ fg.run()
+ except KeyboardInterrupt:
+ pass
+
+if __name__ == '__main__':
+ main ()
--- /dev/null
+#!/usr/bin/env python
+#
+# Copyright 2004 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+"""
+Check Rx path or USRP Rev 1.
+
+This configures the USRP to return a periodic sequence of integers
+"""
+
+from gnuradio import gr
+from gnuradio import usrp
+
+def build_graph ():
+ rx_decim = 32
+
+ fg = gr.flow_graph ()
+ usrp_rx = usrp.source_s (0, rx_decim, 1, 0x32103210, usrp.FPGA_MODE_COUNTING)
+ sink = gr.check_counting_s ()
+ fg.connect (usrp_rx, sink)
+
+ # file_sink = gr.file_sink (gr.sizeof_short, 'counting.dat')
+ # fg.connect (usrp_rx, file_sink)
+
+ return fg
+
+def main ():
+ fg = build_graph ()
+ try:
+ fg.run()
+ except KeyboardInterrupt:
+ pass
+
+if __name__ == '__main__':
+ main ()
--- /dev/null
+#!/usr/bin/env python
+#
+# Copyright 2004 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+"""
+Digital loopback (Tx to Rx) for the USRP Rev1.
+"""
+
+
+from gnuradio import gr
+from gnuradio import usrp
+
+
+def ramp_source (fg):
+ period = 2**16
+ src = gr.vector_source_s (range (-period/2, period/2, 1), True)
+ return src
+
+def build_graph ():
+ tx_interp = 32 # tx should be twice rx
+ rx_decim = 16
+
+ fg = gr.flow_graph ()
+
+ data_src = ramp_source (fg)
+ # usrp_tx = usrp.sink_s (0, tx_interp, 1, 0x98)
+ usrp_tx = usrp.sink_s (0, tx_interp)
+ fg.connect (data_src, usrp_tx)
+
+ usrp_rx = usrp.source_s (0, rx_decim, 1, 0x32103210, usrp.FPGA_MODE_LOOPBACK)
+ sink = gr.check_counting_s ()
+ fg.connect (usrp_rx, sink)
+
+ # file_sink = gr.file_sink (gr.sizeof_short, "loopback.dat")
+ # fg.connect (usrp_rx, file_sink)
+
+ return fg
+
+def main ():
+ fg = build_graph ()
+ try:
+ fg.run()
+ except KeyboardInterrupt:
+ pass
+
+if __name__ == '__main__':
+ main ()
--- /dev/null
+#!/usr/bin/env python
+#
+# Copyright 2004 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+"""
+Digital loopback (Tx to Rx) for the USRP Rev1.
+"""
+
+from gnuradio import gr
+from gnuradio import usrp
+
+
+def build_graph ():
+ tx_interp = 32 # tx should be twice rx
+ rx_decim = 16
+
+ fg = gr.flow_graph ()
+
+ data_src = gr.lfsr_32k_source_s ()
+
+ # usrp_tx = usrp.sink_s (0, tx_interp, 1, 0x98)
+ usrp_tx = usrp.sink_s (0, tx_interp)
+
+ fg.connect (data_src, usrp_tx)
+
+ usrp_rx = usrp.source_s (0, rx_decim, 1, 0x32103210, usrp.FPGA_MODE_LOOPBACK)
+
+ sink = gr.check_lfsr_32k_s ()
+ fg.connect (usrp_rx, sink)
+
+ # file_sink = gr.file_sink (gr.sizeof_short, "loopback.dat")
+ # fg.connect (usrp_rx, file_sink)
+
+ return fg
+
+def main ():
+ fg = build_graph ()
+ try:
+ fg.run()
+ except KeyboardInterrupt:
+ pass
+
+if __name__ == '__main__':
+ main ()
+++ /dev/null
-#!/usr/bin/env python
-
-from gnuradio import gr
-from gnuradio import usrp
-from optparse import OptionParser
-from usrpm import usrp_dbid
-
-u_source = usrp.source_c()
-u_sink = usrp.sink_c()
-subdev_Ar = usrp.selected_subdev(u_source, (0,0))
-subdev_Br = usrp.selected_subdev(u_source, (1,0))
-subdev_At = usrp.selected_subdev(u_sink, (0,0))
-subdev_Bt = usrp.selected_subdev(u_sink, (1,0))
-
-print "RX d'board %s" % (subdev_Ar.side_and_name(),)
-print "RX d'board %s" % (subdev_Br.side_and_name(),)
-print "TX d'board %s" % (subdev_At.side_and_name(),)
-print "TX d'board %s" % (subdev_Bt.side_and_name(),)
-
projects / debian / gnuradio / commitdiff