Merge branch 'wip/gr-noaa' of http://gnuradio.org/git/jcorgan into master

* 'wip/gr-noaa' of http://gnuradio.org/git/jcorgan:
  Added README and updated configuration requirements
  Split HRPT script into live receive and post-processing
  Dumps HRPT frames to text file similar to specification document
  Added skeleton HRPT decoder block
  Updated HRPT receiver to read files recorded as shorts
  Add HRPT word output to deframer
  Reorganization of directories
  Added HRPT deframer block
  Changed synchronizer to output sliced bits.
  Updated HRPT blocks/scripts for testing.  Seeing good minor frame sync's.
  Implemented crude timing recovery using zero crossings but no resampling
  Work in progress, incomplete
  Update rx_poes script to filter prior to PLL.
  Created new gr-noaa top-level component.

diff --git a/config/Makefile.am b/config/Makefile.am
index d6a3ad393e5b2d2b4116fb2e1ac2d62889787f20..3aead353a986872239918021825d2be08a3bf119 100644 (file)
--- a/config/Makefile.am
+++ b/config/Makefile.am
@@ -61,6 +61,7 @@ m4macros = \
        grc_gr_gcell.m4 \
        grc_gr_gpio.m4 \
        grc_gr_gsm_fr_vocoder.m4 \
+       grc_gr_noaa.m4 \
        grc_gr_radar_mono.m4 \
        grc_gr_radio_astronomy.m4 \
        grc_gr_sounder.m4 \

diff --git a/config/grc_gr_noaa.m4 b/config/grc_gr_noaa.m4
new file mode 100644 (file)
index 0000000..b00579f
--- /dev/null
+++ b/config/grc_gr_noaa.m4
@@ -0,0 +1,41 @@
+dnl Copyright 2009 Free Software Foundation, Inc.
+dnl 
+dnl This file is part of GNU Radio
+dnl 
+dnl GNU Radio is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 3, or (at your option)
+dnl any later version.
+dnl 
+dnl GNU Radio is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+dnl GNU General Public License for more details.
+dnl 
+dnl You should have received a copy of the GNU General Public License
+dnl along with GNU Radio; see the file COPYING.  If not, write to
+dnl the Free Software Foundation, Inc., 51 Franklin Street,
+dnl Boston, MA 02110-1301, USA.
+
+AC_DEFUN([GRC_GR_NOAA],[
+    GRC_ENABLE(gr-noaa)
+
+    dnl Don't do gr-noaa if gnuradio-core skipped
+    GRC_CHECK_DEPENDENCY(gr-noaa, gnuradio-core)
+    GRC_CHECK_DEPENDENCY(gr-noaa, gr-wxgui)
+    GRC_CHECK_DEPENDENCY(gr-noaa, grc)
+
+    AC_CONFIG_FILES([\
+        gr-noaa/Makefile \
+       gr-noaa/apps/Makefile \
+       gr-noaa/grc/Makefile \
+       gr-noaa/lib/Makefile \
+       gr-noaa/python/Makefile \
+       gr-noaa/swig/Makefile \
+    ])
+
+    GRC_BUILD_CONDITIONAL(gr-noaa,[
+        dnl run_tests is created from run_tests.in.  Make it executable.
+        #AC_CONFIG_COMMANDS([run_tests_noaa], [chmod +x gr-pager/lib/run_tests])
+    ])
+])

diff --git a/configure.ac b/configure.ac
index 2bb37935e9a4cb1ef10b664c6a1463f13368a064..6924a64673ebb1310a3f11d0dfb2d27a9dbb0106 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -352,6 +352,7 @@ GRC_GR_COMEDI
 GRC_GR_CVSD_VOCODER
 GRC_GR_GPIO
 GRC_GR_GSM_FR_VOCODER
+GRC_GR_NOAA
 GRC_GR_PAGER
 GRC_GR_RADAR_MONO
 GRC_GR_RADIO_ASTRONOMY

diff --git a/gr-noaa/.gitignore b/gr-noaa/.gitignore
new file mode 100644 (file)
index 0000000..282522d
--- /dev/null
+++ b/gr-noaa/.gitignore
@@ -0,0 +1,2 @@
+Makefile
+Makefile.in

diff --git a/gr-noaa/Makefile.am b/gr-noaa/Makefile.am
new file mode 100644 (file)
index 0000000..f3f4f6a
--- /dev/null
+++ b/gr-noaa/Makefile.am
@@ -0,0 +1,29 @@
+#
+# Copyright 2009 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 = lib grc
+
+if PYTHON
+SUBDIRS += swig python apps
+endif
+

diff --git a/gr-noaa/README b/gr-noaa/README
new file mode 100644 (file)
index 0000000..d99c0d9
--- /dev/null
+++ b/gr-noaa/README
@@ -0,0 +1,53 @@
+This component implements an NOAA POES HRPT receiver.  After installation,
+the scripts described below will be install in the users PATH.
+
+As the scripts are generated using GRC, GRC must be installed at runtime
+in order for them to operate.
+
+
+HRPT Operation
+--------------
+
+usrp_rx_hrpt.py
+
+This GUI script will receive HRPT RF, demodulate, synchronize, and deframe
+HRPT minor frames into a file.  The file stores a series of 11090 word,
+16-bits per word corresponding to the HRPT minor frame format (only the
+lower 10-bits per word are significant.)
+
+The script file by default uses USRP side A, 1698 MHz, at decimation 16. A
+configuration file 'usrp_rx_hrpt.cfg' in the current working directory will
+allow changing this, as well as implementing persistent storage of GUI
+entered parameters from invocation to invocation.
+
+The present HRPT demodulator is only tested at decimation 16.  The only other
+valid decimation rates are 24 and 32, which may word but with more bit
+errors.  No other decimation rates will work.
+
+
+demod_hrpt_file.py
+
+This command-line only script will operate on a file generated with
+usrp_rx_cfile.py and output frames in the same format as above.  It does
+*not* use the configuration file above.
+
+Usage: demod_hrpt_file.py: [options]
+
+Options:
+  -h, --help            show this help message and exit
+  -d DECIM, --decim=DECIM
+                        Set Decimation [default=16]
+  -p PLL_ALPHA, --pll-alpha=PLL_ALPHA
+                        Set pll_alpha [default=50m]
+  -s SYNC_ALPHA, --sync-alpha=SYNC_ALPHA
+                        Set sync_alpha [default=50m]
+  -F FILENAME, --filename=FILENAME
+                        Set Filename [default=usrp.dat]
+  -o OUTPUT, --output=OUTPUT
+                        Set Output [default=frames.dat]
+
+
+LRIT Operation
+--------------
+
+The work-in-progress LRIT GRC script is not currently in a usable state.

diff --git a/gr-noaa/apps/.gitignore b/gr-noaa/apps/.gitignore
new file mode 100644 (file)
index 0000000..773a6df
--- /dev/null
+++ b/gr-noaa/apps/.gitignore
@@ -0,0 +1 @@
+*.dat

diff --git a/gr-noaa/apps/Makefile.am b/gr-noaa/apps/Makefile.am
new file mode 100644 (file)
index 0000000..906638f
--- /dev/null
+++ b/gr-noaa/apps/Makefile.am
@@ -0,0 +1,35 @@
+#
+# Copyright 2009 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
+
+if PYTHON
+
+dist_bin_SCRIPTS = \
+       demod_hrpt_file.py \
+       usrp_rx_hrpt.py \
+       usrp_rx_lrit.py
+
+EXTRA_DIST = \
+       demod_hrpt_file.grc \
+       usrp_rx_hrpt.grc \
+       usrp_rx_lrit.grc
+endif

diff --git a/gr-noaa/apps/demod_hrpt_file.grc b/gr-noaa/apps/demod_hrpt_file.grc
new file mode 100644 (file)
index 0000000..4a5e871
--- /dev/null
+++ b/gr-noaa/apps/demod_hrpt_file.grc
@@ -0,0 +1,781 @@
+<?xml version='1.0' encoding='ASCII'?>
+<flow_graph>
+  <timestamp>Wed Sep 23 11:37:25 2009</timestamp>
+  <block>
+    <key>options</key>
+    <param>
+      <key>id</key>
+      <value>demod_hrpt_file</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>USRP HRPT Receiver</value>
+    </param>
+    <param>
+      <key>author</key>
+      <value></value>
+    </param>
+    <param>
+      <key>description</key>
+      <value></value>
+    </param>
+    <param>
+      <key>window_size</key>
+      <value>4096,4096</value>
+    </param>
+    <param>
+      <key>generate_options</key>
+      <value>no_gui</value>
+    </param>
+    <param>
+      <key>category</key>
+      <value>Custom</value>
+    </param>
+    <param>
+      <key>run</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>realtime_scheduling</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(10, 10)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>max_sync_offset</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0.01</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(705, 19)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>max_carrier_offset</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>2*math.pi*100e3/sample_rate</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(575, 19)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>hs</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>int(sps/2.0)</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(499, 19)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>sps</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>sample_rate/sym_rate</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(397, 19)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>sym_rate</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>600*1109</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(301, 19)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>sample_rate</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>64e6/decim</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(198, 17)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>id</key>
+      <value>decim</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Decimation</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>16</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>intx</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>d</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(404, 102)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>id</key>
+      <value>pll_alpha</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0.05</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>p</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(516, 102)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>id</key>
+      <value>sync_alpha</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0.05</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>s</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(601, 103)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>import</key>
+    <param>
+      <key>id</key>
+      <value>import_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>import</key>
+      <value>import math</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(9, 92)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>id</key>
+      <value>filename</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Filename</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>usrp.dat</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>string</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>F</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(200, 101)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_file_source</key>
+    <param>
+      <key>id</key>
+      <value>file_source</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>file</key>
+      <value>filename</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>short</value>
+    </param>
+    <param>
+      <key>repeat</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(102, 368)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_short_to_float</key>
+    <param>
+      <key>id</key>
+      <value>s2f</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(305, 380)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_deinterleave</key>
+    <param>
+      <key>id</key>
+      <value>deinterleave</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>num_streams</key>
+      <value>2</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(526, 363)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_float_to_complex</key>
+    <param>
+      <key>id</key>
+      <value>f2c</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(730, 363)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>virtual_sink</key>
+    <param>
+      <key>id</key>
+      <value>samples_sink</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>stream_id</key>
+      <value>samples</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(968, 376)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>virtual_source</key>
+    <param>
+      <key>id</key>
+      <value>samples_source</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>stream_id</key>
+      <value>samples</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(104, 479)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_moving_average_xx</key>
+    <param>
+      <key>id</key>
+      <value>matched_filter</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>length</key>
+      <value>hs</value>
+    </param>
+    <param>
+      <key>scale</key>
+      <value>1.0/hs</value>
+    </param>
+    <param>
+      <key>max_iter</key>
+      <value>4000</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(302, 463)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>noaa_hrpt_pll_cf</key>
+    <param>
+      <key>id</key>
+      <value>pll</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>alpha</key>
+      <value>pll_alpha</value>
+    </param>
+    <param>
+      <key>beta</key>
+      <value>pll_alpha**2/4.0</value>
+    </param>
+    <param>
+      <key>max_offset</key>
+      <value>max_carrier_offset</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(504, 463)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>noaa_hrpt_sync_fb</key>
+    <param>
+      <key>id</key>
+      <value>sync</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>alpha</key>
+      <value>sync_alpha</value>
+    </param>
+    <param>
+      <key>beta</key>
+      <value>sync_alpha**2/4.0</value>
+    </param>
+    <param>
+      <key>sps</key>
+      <value>sps</value>
+    </param>
+    <param>
+      <key>max_offset</key>
+      <value>max_sync_offset</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(711, 455)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>noaa_hrpt_deframer</key>
+    <param>
+      <key>id</key>
+      <value>deframer</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(935, 483)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_file_sink</key>
+    <param>
+      <key>id</key>
+      <value>file_sink</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>file</key>
+      <value>output</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>short</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1136, 479)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>noaa_hrpt_decoder</key>
+    <param>
+      <key>id</key>
+      <value>decoder</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1135, 542)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>id</key>
+      <value>output</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Output</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>frames.dat</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>string</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>o</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(302, 101)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <connection>
+    <source_block_id>deframer</source_block_id>
+    <sink_block_id>file_sink</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>sync</source_block_id>
+    <sink_block_id>deframer</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>pll</source_block_id>
+    <sink_block_id>sync</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>matched_filter</source_block_id>
+    <sink_block_id>pll</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>s2f</source_block_id>
+    <sink_block_id>deinterleave</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>deinterleave</source_block_id>
+    <sink_block_id>f2c</sink_block_id>
+    <source_key>1</source_key>
+    <sink_key>1</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>deinterleave</source_block_id>
+    <sink_block_id>f2c</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>file_source</source_block_id>
+    <sink_block_id>s2f</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>deframer</source_block_id>
+    <sink_block_id>decoder</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>f2c</source_block_id>
+    <sink_block_id>samples_sink</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>samples_source</source_block_id>
+    <sink_block_id>matched_filter</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+</flow_graph>

diff --git a/gr-noaa/apps/demod_hrpt_file.py b/gr-noaa/apps/demod_hrpt_file.py
new file mode 100755 (executable)
index 0000000..a1469e9
--- /dev/null
+++ b/gr-noaa/apps/demod_hrpt_file.py
@@ -0,0 +1,130 @@
+#!/usr/bin/env python
+##################################################
+# Gnuradio Python Flow Graph
+# Title: USRP HRPT Receiver
+# Generated: Wed Sep 23 11:37:25 2009
+##################################################
+
+from gnuradio import eng_notation
+from gnuradio import gr
+from gnuradio import noaa
+from gnuradio.eng_option import eng_option
+from gnuradio.gr import firdes
+from optparse import OptionParser
+import math
+
+class demod_hrpt_file(gr.top_block):
+
+       def __init__(self, decim=16, pll_alpha=0.05, sync_alpha=0.05, filename="usrp.dat", output="frames.dat"):
+               gr.top_block.__init__(self, "USRP HRPT Receiver")
+
+               ##################################################
+               # Parameters
+               ##################################################
+               self.decim = decim
+               self.pll_alpha = pll_alpha
+               self.sync_alpha = sync_alpha
+               self.filename = filename
+               self.output = output
+
+               ##################################################
+               # Variables
+               ##################################################
+               self.sym_rate = sym_rate = 600*1109
+               self.sample_rate = sample_rate = 64e6/decim
+               self.sps = sps = sample_rate/sym_rate
+               self.max_sync_offset = max_sync_offset = 0.01
+               self.max_carrier_offset = max_carrier_offset = 2*math.pi*100e3/sample_rate
+               self.hs = hs = int(sps/2.0)
+
+               ##################################################
+               # Blocks
+               ##################################################
+               self.decoder = noaa.hrpt_decoder()
+               self.deframer = noaa.hrpt_deframer()
+               self.deinterleave = gr.deinterleave(gr.sizeof_float*1)
+               self.f2c = gr.float_to_complex(1)
+               self.file_sink = gr.file_sink(gr.sizeof_short*1, output)
+               self.file_source = gr.file_source(gr.sizeof_short*1, filename, False)
+               self.matched_filter = gr.moving_average_cc(hs, 1.0/hs, 4000)
+               self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2/4.0, max_carrier_offset)
+               self.s2f = gr.short_to_float()
+               self.sync = noaa.hrpt_sync_fb(sync_alpha, sync_alpha**2/4.0, sps, max_sync_offset)
+
+               ##################################################
+               # Connections
+               ##################################################
+               self.connect((self.deframer, 0), (self.file_sink, 0))
+               self.connect((self.sync, 0), (self.deframer, 0))
+               self.connect((self.pll, 0), (self.sync, 0))
+               self.connect((self.matched_filter, 0), (self.pll, 0))
+               self.connect((self.s2f, 0), (self.deinterleave, 0))
+               self.connect((self.deinterleave, 1), (self.f2c, 1))
+               self.connect((self.deinterleave, 0), (self.f2c, 0))
+               self.connect((self.file_source, 0), (self.s2f, 0))
+               self.connect((self.deframer, 0), (self.decoder, 0))
+               self.connect((self.f2c, 0), (self.matched_filter, 0))
+
+       def set_decim(self, decim):
+               self.decim = decim
+               self.set_sample_rate(64e6/self.decim)
+
+       def set_pll_alpha(self, pll_alpha):
+               self.pll_alpha = pll_alpha
+               self.pll.set_alpha(self.pll_alpha)
+               self.pll.set_beta(self.pll_alpha**2/4.0)
+
+       def set_sync_alpha(self, sync_alpha):
+               self.sync_alpha = sync_alpha
+               self.sync.set_alpha(self.sync_alpha)
+               self.sync.set_beta(self.sync_alpha**2/4.0)
+
+       def set_filename(self, filename):
+               self.filename = filename
+
+       def set_output(self, output):
+               self.output = output
+
+       def set_sym_rate(self, sym_rate):
+               self.sym_rate = sym_rate
+               self.set_sps(self.sample_rate/self.sym_rate)
+
+       def set_sample_rate(self, sample_rate):
+               self.sample_rate = sample_rate
+               self.set_max_carrier_offset(2*math.pi*100e3/self.sample_rate)
+               self.set_sps(self.sample_rate/self.sym_rate)
+
+       def set_sps(self, sps):
+               self.sps = sps
+               self.set_hs(int(self.sps/2.0))
+
+       def set_max_sync_offset(self, max_sync_offset):
+               self.max_sync_offset = max_sync_offset
+               self.sync.set_max_offset(self.max_sync_offset)
+
+       def set_max_carrier_offset(self, max_carrier_offset):
+               self.max_carrier_offset = max_carrier_offset
+               self.pll.set_max_offset(self.max_carrier_offset)
+
+       def set_hs(self, hs):
+               self.hs = hs
+               self.matched_filter.set_length_and_scale(self.hs, 1.0/self.hs)
+
+if __name__ == '__main__':
+       parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
+       parser.add_option("-d", "--decim", dest="decim", type="intx", default=16,
+               help="Set Decimation [default=%default]")
+       parser.add_option("-p", "--pll-alpha", dest="pll_alpha", type="eng_float", default=eng_notation.num_to_str(0.05),
+               help="Set pll_alpha [default=%default]")
+       parser.add_option("-s", "--sync-alpha", dest="sync_alpha", type="eng_float", default=eng_notation.num_to_str(0.05),
+               help="Set sync_alpha [default=%default]")
+       parser.add_option("-F", "--filename", dest="filename", type="string", default="usrp.dat",
+               help="Set Filename [default=%default]")
+       parser.add_option("-o", "--output", dest="output", type="string", default="frames.dat",
+               help="Set Output [default=%default]")
+       (options, args) = parser.parse_args()
+       tb = demod_hrpt_file(decim=options.decim, pll_alpha=options.pll_alpha, sync_alpha=options.sync_alpha, filename=options.filename, output=options.output)
+       tb.start()
+       raw_input('Press Enter to quit: ')
+       tb.stop()
+

diff --git a/gr-noaa/apps/usrp_rx_hrpt.cfg b/gr-noaa/apps/usrp_rx_hrpt.cfg
new file mode 100644 (file)
index 0000000..69f3c0b
--- /dev/null
+++ b/gr-noaa/apps/usrp_rx_hrpt.cfg
@@ -0,0 +1,13 @@
+[output]
+filename = frames.dat
+
+[demod]
+pll_alpha = 0.05
+sync_alpha = 0.05
+
+[usrp]
+freq = 1698000000.0
+decim = 16
+side = A
+gain = 35.0
+

diff --git a/gr-noaa/apps/usrp_rx_hrpt.grc b/gr-noaa/apps/usrp_rx_hrpt.grc
new file mode 100644 (file)
index 0000000..90d8687
--- /dev/null
+++ b/gr-noaa/apps/usrp_rx_hrpt.grc
@@ -0,0 +1,1394 @@
+<?xml version='1.0' encoding='ASCII'?>
+<flow_graph>
+  <timestamp>Wed Sep 23 11:32:00 2009</timestamp>
+  <block>
+    <key>options</key>
+    <param>
+      <key>id</key>
+      <value>usrp_rx_hrpt</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>USRP HRPT Receiver</value>
+    </param>
+    <param>
+      <key>author</key>
+      <value></value>
+    </param>
+    <param>
+      <key>description</key>
+      <value></value>
+    </param>
+    <param>
+      <key>window_size</key>
+      <value>4096,4096</value>
+    </param>
+    <param>
+      <key>generate_options</key>
+      <value>wx_gui</value>
+    </param>
+    <param>
+      <key>category</key>
+      <value>Custom</value>
+    </param>
+    <param>
+      <key>run</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>realtime_scheduling</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(10, 10)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>max_carrier_offset</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>2*math.pi*100e3/sample_rate</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(575, 19)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_moving_average_xx</key>
+    <param>
+      <key>id</key>
+      <value>matched_filter</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>length</key>
+      <value>hs</value>
+    </param>
+    <param>
+      <key>scale</key>
+      <value>1.0/hs</value>
+    </param>
+    <param>
+      <key>max_iter</key>
+      <value>4000</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(441, 723)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>import</key>
+    <param>
+      <key>id</key>
+      <value>import_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>import</key>
+      <value>import math</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(11, 76)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>'usrp_rx_hrpt.cfg'</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(12, 129)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>sym_rate</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>600*1109</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(301, 19)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>sps</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>sample_rate/sym_rate</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(397, 19)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>hs</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>int(sps/2.0)</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(499, 19)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>sample_rate</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>64e6/decim</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(198, 17)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_slider</key>
+    <param>
+      <key>id</key>
+      <value>gain</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>RX Gain</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>saved_gain</value>
+    </param>
+    <param>
+      <key>min</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>max</key>
+      <value>100</value>
+    </param>
+    <param>
+      <key>num_steps</key>
+      <value>100</value>
+    </param>
+    <param>
+      <key>style</key>
+      <value>wx.SL_HORIZONTAL</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>float_converter</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0, 1, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(340, 106)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_text_box</key>
+    <param>
+      <key>id</key>
+      <value>freq</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Frequency</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>saved_freq</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>float_converter</value>
+    </param>
+    <param>
+      <key>formatter</key>
+      <value>None</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0, 0, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(199, 106)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_slider</key>
+    <param>
+      <key>id</key>
+      <value>pll_alpha</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>PLL Alpha</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>saved_pll_alpha</value>
+    </param>
+    <param>
+      <key>min</key>
+      <value>0.0</value>
+    </param>
+    <param>
+      <key>max</key>
+      <value>0.5</value>
+    </param>
+    <param>
+      <key>num_steps</key>
+      <value>100</value>
+    </param>
+    <param>
+      <key>style</key>
+      <value>wx.SL_HORIZONTAL</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>float_converter</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0, 2, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(479, 106)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_slider</key>
+    <param>
+      <key>id</key>
+      <value>sync_alpha</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>SYNC Alpha</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>saved_sync_alpha</value>
+    </param>
+    <param>
+      <key>min</key>
+      <value>0.0</value>
+    </param>
+    <param>
+      <key>max</key>
+      <value>0.5</value>
+    </param>
+    <param>
+      <key>num_steps</key>
+      <value>100</value>
+    </param>
+    <param>
+      <key>style</key>
+      <value>wx.SL_HORIZONTAL</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>float_converter</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0, 3, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(618, 106)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_static_text</key>
+    <param>
+      <key>id</key>
+      <value>side_text</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>USRP Side</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>side</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>str_converter</value>
+    </param>
+    <param>
+      <key>formatter</key>
+      <value>None</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>1, 0, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(828, 20)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_config</key>
+    <param>
+      <key>id</key>
+      <value>side</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>'A'</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>string</value>
+    </param>
+    <param>
+      <key>config_file</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>section</key>
+      <value>'usrp'</value>
+    </param>
+    <param>
+      <key>option</key>
+      <value>'side'</value>
+    </param>
+    <param>
+      <key>writeback</key>
+      <value>side</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(194, 253)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_config</key>
+    <param>
+      <key>id</key>
+      <value>decim</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>16</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>real</value>
+    </param>
+    <param>
+      <key>config_file</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>section</key>
+      <value>'usrp'</value>
+    </param>
+    <param>
+      <key>option</key>
+      <value>'decim'</value>
+    </param>
+    <param>
+      <key>writeback</key>
+      <value>decim</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(351, 255)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_config</key>
+    <param>
+      <key>id</key>
+      <value>saved_freq</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>1698e6</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>real</value>
+    </param>
+    <param>
+      <key>config_file</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>section</key>
+      <value>'usrp'</value>
+    </param>
+    <param>
+      <key>option</key>
+      <value>'freq'</value>
+    </param>
+    <param>
+      <key>writeback</key>
+      <value>freq</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(507, 258)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_config</key>
+    <param>
+      <key>id</key>
+      <value>saved_gain</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>35</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>real</value>
+    </param>
+    <param>
+      <key>config_file</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>section</key>
+      <value>'usrp'</value>
+    </param>
+    <param>
+      <key>option</key>
+      <value>'gain'</value>
+    </param>
+    <param>
+      <key>writeback</key>
+      <value>gain</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(664, 259)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_config</key>
+    <param>
+      <key>id</key>
+      <value>saved_pll_alpha</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0.05</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>real</value>
+    </param>
+    <param>
+      <key>config_file</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>section</key>
+      <value>'demod'</value>
+    </param>
+    <param>
+      <key>option</key>
+      <value>'pll_alpha'</value>
+    </param>
+    <param>
+      <key>writeback</key>
+      <value>pll_alpha</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(823, 258)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_config</key>
+    <param>
+      <key>id</key>
+      <value>saved_sync_alpha</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0.05</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>real</value>
+    </param>
+    <param>
+      <key>config_file</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>section</key>
+      <value>'demod'</value>
+    </param>
+    <param>
+      <key>option</key>
+      <value>'sync_alpha'</value>
+    </param>
+    <param>
+      <key>writeback</key>
+      <value>sync_alpha</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(981, 258)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_config</key>
+    <param>
+      <key>id</key>
+      <value>output_filename</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>'frames.dat'</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>string</value>
+    </param>
+    <param>
+      <key>config_file</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>section</key>
+      <value>'output'</value>
+    </param>
+    <param>
+      <key>option</key>
+      <value>'filename'</value>
+    </param>
+    <param>
+      <key>writeback</key>
+      <value>output_filename</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1139, 259)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_static_text</key>
+    <param>
+      <key>id</key>
+      <value>decim_text</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Decimation</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>decim</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>float_converter</value>
+    </param>
+    <param>
+      <key>formatter</key>
+      <value>None</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>1, 1, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(973, 20)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>max_sync_offset</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0.01</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(705, 19)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>usrp_simple_source_x</key>
+    <param>
+      <key>id</key>
+      <value>usrp_source</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>format</key>
+      <value></value>
+    </param>
+    <param>
+      <key>which</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>decimation</key>
+      <value>decim</value>
+    </param>
+    <param>
+      <key>frequency</key>
+      <value>freq</value>
+    </param>
+    <param>
+      <key>lo_offset</key>
+      <value>float('inf')</value>
+    </param>
+    <param>
+      <key>gain</key>
+      <value>gain</value>
+    </param>
+    <param>
+      <key>side</key>
+      <value>side</value>
+    </param>
+    <param>
+      <key>rx_ant</key>
+      <value>RXA</value>
+    </param>
+    <param>
+      <key>hb_filters</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(56, 699)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_agc_xx</key>
+    <param>
+      <key>id</key>
+      <value>agc</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>rate</key>
+      <value>1e-6</value>
+    </param>
+    <param>
+      <key>reference</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>gain</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>max_gain</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(273, 715)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>wxgui_scopesink2</key>
+    <param>
+      <key>id</key>
+      <value>rx_scope</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>RX Waveform</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>sample_rate</value>
+    </param>
+    <param>
+      <key>v_scale</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>t_scale</key>
+      <value>20.0/sample_rate</value>
+    </param>
+    <param>
+      <key>ac_couple</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>xy_mode</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>num_inputs</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>1, 0, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value>displays, 0</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(439, 829)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>wxgui_fftsink2</key>
+    <param>
+      <key>id</key>
+      <value>rx_fft</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>RX Spectrum</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>sample_rate</value>
+    </param>
+    <param>
+      <key>baseband_freq</key>
+      <value>freq</value>
+    </param>
+    <param>
+      <key>y_per_div</key>
+      <value>5</value>
+    </param>
+    <param>
+      <key>y_divs</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>ref_level</key>
+      <value>-5</value>
+    </param>
+    <param>
+      <key>ref_scale</key>
+      <value>2.0</value>
+    </param>
+    <param>
+      <key>fft_size</key>
+      <value>1024</value>
+    </param>
+    <param>
+      <key>fft_rate</key>
+      <value>30</value>
+    </param>
+    <param>
+      <key>peak_hold</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>average</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>avg_alpha</key>
+      <value>0.1</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0, 0, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value>displays, 0</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(439, 465)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>wxgui_scopesink2</key>
+    <param>
+      <key>id</key>
+      <value>pll_scope</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>Post-PLL</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>sample_rate</value>
+    </param>
+    <param>
+      <key>v_scale</key>
+      <value>0.5</value>
+    </param>
+    <param>
+      <key>t_scale</key>
+      <value>20.0/sample_rate</value>
+    </param>
+    <param>
+      <key>ac_couple</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>xy_mode</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>num_inputs</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0, 0, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value>displays, 1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(605, 552)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>180</value>
+    </param>
+  </block>
+  <block>
+    <key>notebook</key>
+    <param>
+      <key>id</key>
+      <value>displays</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>style</key>
+      <value>wx.NB_TOP</value>
+    </param>
+    <param>
+      <key>labels</key>
+      <value>['RX','Demod']</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>2, 0, 1, 4</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(15, 237)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>noaa_hrpt_pll_cf</key>
+    <param>
+      <key>id</key>
+      <value>pll</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>alpha</key>
+      <value>pll_alpha</value>
+    </param>
+    <param>
+      <key>beta</key>
+      <value>pll_alpha**2/4.0</value>
+    </param>
+    <param>
+      <key>max_offset</key>
+      <value>max_carrier_offset</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(632, 723)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>noaa_hrpt_sync_fb</key>
+    <param>
+      <key>id</key>
+      <value>sync</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>alpha</key>
+      <value>sync_alpha</value>
+    </param>
+    <param>
+      <key>beta</key>
+      <value>sync_alpha**2/4.0</value>
+    </param>
+    <param>
+      <key>sps</key>
+      <value>sps</value>
+    </param>
+    <param>
+      <key>max_offset</key>
+      <value>max_sync_offset</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(840, 715)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>noaa_hrpt_deframer</key>
+    <param>
+      <key>id</key>
+      <value>deframer</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1071, 743)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>noaa_hrpt_decoder</key>
+    <param>
+      <key>id</key>
+      <value>decoder</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1274, 743)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_file_sink</key>
+    <param>
+      <key>id</key>
+      <value>frame_sink</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>file</key>
+      <value>output_filename</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>short</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1273, 851)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <connection>
+    <source_block_id>deframer</source_block_id>
+    <sink_block_id>frame_sink</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>sync</source_block_id>
+    <sink_block_id>deframer</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>pll</source_block_id>
+    <sink_block_id>sync</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>pll</source_block_id>
+    <sink_block_id>pll_scope</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>agc</source_block_id>
+    <sink_block_id>rx_scope</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>agc</source_block_id>
+    <sink_block_id>rx_fft</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>agc</source_block_id>
+    <sink_block_id>matched_filter</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>matched_filter</source_block_id>
+    <sink_block_id>pll</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>deframer</source_block_id>
+    <sink_block_id>decoder</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>usrp_source</source_block_id>
+    <sink_block_id>agc</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+</flow_graph>

diff --git a/gr-noaa/apps/usrp_rx_hrpt.py b/gr-noaa/apps/usrp_rx_hrpt.py
new file mode 100755 (executable)
index 0000000..7efbecd
--- /dev/null
+++ b/gr-noaa/apps/usrp_rx_hrpt.py
@@ -0,0 +1,435 @@
+#!/usr/bin/env python
+##################################################
+# Gnuradio Python Flow Graph
+# Title: USRP HRPT Receiver
+# Generated: Wed Sep 23 11:32:04 2009
+##################################################
+
+from gnuradio import eng_notation
+from gnuradio import gr
+from gnuradio import noaa
+from gnuradio.eng_option import eng_option
+from gnuradio.gr import firdes
+from gnuradio.wxgui import fftsink2
+from gnuradio.wxgui import forms
+from gnuradio.wxgui import scopesink2
+from grc_gnuradio import usrp as grc_usrp
+from grc_gnuradio import wxgui as grc_wxgui
+from optparse import OptionParser
+import ConfigParser
+import math
+import wx
+
+class usrp_rx_hrpt(grc_wxgui.top_block_gui):
+
+       def __init__(self):
+               grc_wxgui.top_block_gui.__init__(self, title="USRP HRPT Receiver")
+
+               ##################################################
+               # Variables
+               ##################################################
+               self.config_filename = config_filename = 'usrp_rx_hrpt.cfg'
+               self._decim_config = ConfigParser.ConfigParser()
+               self._decim_config.read(config_filename)
+               try: decim = self._decim_config.getfloat('usrp', 'decim')
+               except: decim = 16
+               self.decim = decim
+               self.sym_rate = sym_rate = 600*1109
+               self.sample_rate = sample_rate = 64e6/decim
+               self.sps = sps = sample_rate/sym_rate
+               self._side_config = ConfigParser.ConfigParser()
+               self._side_config.read(config_filename)
+               try: side = self._side_config.get('usrp', 'side')
+               except: side = 'A'
+               self.side = side
+               self._saved_sync_alpha_config = ConfigParser.ConfigParser()
+               self._saved_sync_alpha_config.read(config_filename)
+               try: saved_sync_alpha = self._saved_sync_alpha_config.getfloat('demod', 'sync_alpha')
+               except: saved_sync_alpha = 0.05
+               self.saved_sync_alpha = saved_sync_alpha
+               self._saved_pll_alpha_config = ConfigParser.ConfigParser()
+               self._saved_pll_alpha_config.read(config_filename)
+               try: saved_pll_alpha = self._saved_pll_alpha_config.getfloat('demod', 'pll_alpha')
+               except: saved_pll_alpha = 0.05
+               self.saved_pll_alpha = saved_pll_alpha
+               self._saved_gain_config = ConfigParser.ConfigParser()
+               self._saved_gain_config.read(config_filename)
+               try: saved_gain = self._saved_gain_config.getfloat('usrp', 'gain')
+               except: saved_gain = 35
+               self.saved_gain = saved_gain
+               self._saved_freq_config = ConfigParser.ConfigParser()
+               self._saved_freq_config.read(config_filename)
+               try: saved_freq = self._saved_freq_config.getfloat('usrp', 'freq')
+               except: saved_freq = 1698e6
+               self.saved_freq = saved_freq
+               self.sync_alpha = sync_alpha = saved_sync_alpha
+               self.side_text = side_text = side
+               self.pll_alpha = pll_alpha = saved_pll_alpha
+               self._output_filename_config = ConfigParser.ConfigParser()
+               self._output_filename_config.read(config_filename)
+               try: output_filename = self._output_filename_config.get('output', 'filename')
+               except: output_filename = 'frames.dat'
+               self.output_filename = output_filename
+               self.max_sync_offset = max_sync_offset = 0.01
+               self.max_carrier_offset = max_carrier_offset = 2*math.pi*100e3/sample_rate
+               self.hs = hs = int(sps/2.0)
+               self.gain = gain = saved_gain
+               self.freq = freq = saved_freq
+               self.decim_text = decim_text = decim
+
+               ##################################################
+               # Notebooks
+               ##################################################
+               self.displays = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
+               self.displays.AddPage(grc_wxgui.Panel(self.displays), "RX")
+               self.displays.AddPage(grc_wxgui.Panel(self.displays), "Demod")
+               self.GridAdd(self.displays, 2, 0, 1, 4)
+
+               ##################################################
+               # Controls
+               ##################################################
+               _sync_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
+               self._sync_alpha_text_box = forms.text_box(
+                       parent=self.GetWin(),
+                       sizer=_sync_alpha_sizer,
+                       value=self.sync_alpha,
+                       callback=self.set_sync_alpha,
+                       label="SYNC Alpha",
+                       converter=forms.float_converter(),
+                       proportion=0,
+               )
+               self._sync_alpha_slider = forms.slider(
+                       parent=self.GetWin(),
+                       sizer=_sync_alpha_sizer,
+                       value=self.sync_alpha,
+                       callback=self.set_sync_alpha,
+                       minimum=0.0,
+                       maximum=0.5,
+                       num_steps=100,
+                       style=wx.SL_HORIZONTAL,
+                       cast=float,
+                       proportion=1,
+               )
+               self.GridAdd(_sync_alpha_sizer, 0, 3, 1, 1)
+               self._side_text_static_text = forms.static_text(
+                       parent=self.GetWin(),
+                       value=self.side_text,
+                       callback=self.set_side_text,
+                       label="USRP Side",
+                       converter=forms.str_converter(),
+               )
+               self.GridAdd(self._side_text_static_text, 1, 0, 1, 1)
+               _pll_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
+               self._pll_alpha_text_box = forms.text_box(
+                       parent=self.GetWin(),
+                       sizer=_pll_alpha_sizer,
+                       value=self.pll_alpha,
+                       callback=self.set_pll_alpha,
+                       label="PLL Alpha",
+                       converter=forms.float_converter(),
+                       proportion=0,
+               )
+               self._pll_alpha_slider = forms.slider(
+                       parent=self.GetWin(),
+                       sizer=_pll_alpha_sizer,
+                       value=self.pll_alpha,
+                       callback=self.set_pll_alpha,
+                       minimum=0.0,
+                       maximum=0.5,
+                       num_steps=100,
+                       style=wx.SL_HORIZONTAL,
+                       cast=float,
+                       proportion=1,
+               )
+               self.GridAdd(_pll_alpha_sizer, 0, 2, 1, 1)
+               _gain_sizer = wx.BoxSizer(wx.VERTICAL)
+               self._gain_text_box = forms.text_box(
+                       parent=self.GetWin(),
+                       sizer=_gain_sizer,
+                       value=self.gain,
+                       callback=self.set_gain,
+                       label="RX Gain",
+                       converter=forms.float_converter(),
+                       proportion=0,
+               )
+               self._gain_slider = forms.slider(
+                       parent=self.GetWin(),
+                       sizer=_gain_sizer,
+                       value=self.gain,
+                       callback=self.set_gain,
+                       minimum=0,
+                       maximum=100,
+                       num_steps=100,
+                       style=wx.SL_HORIZONTAL,
+                       cast=float,
+                       proportion=1,
+               )
+               self.GridAdd(_gain_sizer, 0, 1, 1, 1)
+               self._freq_text_box = forms.text_box(
+                       parent=self.GetWin(),
+                       value=self.freq,
+                       callback=self.set_freq,
+                       label="Frequency",
+                       converter=forms.float_converter(),
+               )
+               self.GridAdd(self._freq_text_box, 0, 0, 1, 1)
+               self._decim_text_static_text = forms.static_text(
+                       parent=self.GetWin(),
+                       value=self.decim_text,
+                       callback=self.set_decim_text,
+                       label="Decimation",
+                       converter=forms.float_converter(),
+               )
+               self.GridAdd(self._decim_text_static_text, 1, 1, 1, 1)
+
+               ##################################################
+               # Blocks
+               ##################################################
+               self.agc = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
+               self.decoder = noaa.hrpt_decoder()
+               self.deframer = noaa.hrpt_deframer()
+               self.frame_sink = gr.file_sink(gr.sizeof_short*1, output_filename)
+               self.matched_filter = gr.moving_average_cc(hs, 1.0/hs, 4000)
+               self.pll = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2/4.0, max_carrier_offset)
+               self.pll_scope = scopesink2.scope_sink_f(
+                       self.displays.GetPage(1).GetWin(),
+                       title="Post-PLL",
+                       sample_rate=sample_rate,
+                       v_scale=0.5,
+                       t_scale=20.0/sample_rate,
+                       ac_couple=False,
+                       xy_mode=False,
+                       num_inputs=1,
+               )
+               self.displays.GetPage(1).GridAdd(self.pll_scope.win, 0, 0, 1, 1)
+               self.rx_fft = fftsink2.fft_sink_c(
+                       self.displays.GetPage(0).GetWin(),
+                       baseband_freq=freq,
+                       y_per_div=5,
+                       y_divs=8,
+                       ref_level=-5,
+                       ref_scale=2.0,
+                       sample_rate=sample_rate,
+                       fft_size=1024,
+                       fft_rate=30,
+                       average=True,
+                       avg_alpha=0.1,
+                       title="RX Spectrum",
+                       peak_hold=False,
+               )
+               self.displays.GetPage(0).GridAdd(self.rx_fft.win, 0, 0, 1, 1)
+               self.rx_scope = scopesink2.scope_sink_c(
+                       self.displays.GetPage(0).GetWin(),
+                       title="RX Waveform",
+                       sample_rate=sample_rate,
+                       v_scale=0,
+                       t_scale=20.0/sample_rate,
+                       ac_couple=False,
+                       xy_mode=False,
+                       num_inputs=1,
+               )
+               self.displays.GetPage(0).GridAdd(self.rx_scope.win, 1, 0, 1, 1)
+               self.sync = noaa.hrpt_sync_fb(sync_alpha, sync_alpha**2/4.0, sps, max_sync_offset)
+               self.usrp_source = grc_usrp.simple_source_c(which=0, side=side, rx_ant="RXA")
+               self.usrp_source.set_decim_rate(decim)
+               self.usrp_source.set_frequency(freq, verbose=True)
+               self.usrp_source.set_gain(gain)
+
+               ##################################################
+               # Connections
+               ##################################################
+               self.connect((self.deframer, 0), (self.frame_sink, 0))
+               self.connect((self.sync, 0), (self.deframer, 0))
+               self.connect((self.pll, 0), (self.sync, 0))
+               self.connect((self.pll, 0), (self.pll_scope, 0))
+               self.connect((self.agc, 0), (self.rx_scope, 0))
+               self.connect((self.agc, 0), (self.rx_fft, 0))
+               self.connect((self.agc, 0), (self.matched_filter, 0))
+               self.connect((self.matched_filter, 0), (self.pll, 0))
+               self.connect((self.deframer, 0), (self.decoder, 0))
+               self.connect((self.usrp_source, 0), (self.agc, 0))
+
+       def set_config_filename(self, config_filename):
+               self.config_filename = config_filename
+               self._side_config = ConfigParser.ConfigParser()
+               self._side_config.read(self.config_filename)
+               if not self._side_config.has_section('usrp'):
+                       self._side_config.add_section('usrp')
+               self._side_config.set('usrp', 'side', str(self.side))
+               self._side_config.write(open(self.config_filename, 'w'))
+               self._decim_config = ConfigParser.ConfigParser()
+               self._decim_config.read(self.config_filename)
+               if not self._decim_config.has_section('usrp'):
+                       self._decim_config.add_section('usrp')
+               self._decim_config.set('usrp', 'decim', str(self.decim))
+               self._decim_config.write(open(self.config_filename, 'w'))
+               self._saved_freq_config = ConfigParser.ConfigParser()
+               self._saved_freq_config.read(self.config_filename)
+               if not self._saved_freq_config.has_section('usrp'):
+                       self._saved_freq_config.add_section('usrp')
+               self._saved_freq_config.set('usrp', 'freq', str(self.freq))
+               self._saved_freq_config.write(open(self.config_filename, 'w'))
+               self._saved_gain_config = ConfigParser.ConfigParser()
+               self._saved_gain_config.read(self.config_filename)
+               if not self._saved_gain_config.has_section('usrp'):
+                       self._saved_gain_config.add_section('usrp')
+               self._saved_gain_config.set('usrp', 'gain', str(self.gain))
+               self._saved_gain_config.write(open(self.config_filename, 'w'))
+               self._saved_pll_alpha_config = ConfigParser.ConfigParser()
+               self._saved_pll_alpha_config.read(self.config_filename)
+               if not self._saved_pll_alpha_config.has_section('demod'):
+                       self._saved_pll_alpha_config.add_section('demod')
+               self._saved_pll_alpha_config.set('demod', 'pll_alpha', str(self.pll_alpha))
+               self._saved_pll_alpha_config.write(open(self.config_filename, 'w'))
+               self._saved_sync_alpha_config = ConfigParser.ConfigParser()
+               self._saved_sync_alpha_config.read(self.config_filename)
+               if not self._saved_sync_alpha_config.has_section('demod'):
+                       self._saved_sync_alpha_config.add_section('demod')
+               self._saved_sync_alpha_config.set('demod', 'sync_alpha', str(self.sync_alpha))
+               self._saved_sync_alpha_config.write(open(self.config_filename, 'w'))
+               self._output_filename_config = ConfigParser.ConfigParser()
+               self._output_filename_config.read(self.config_filename)
+               if not self._output_filename_config.has_section('output'):
+                       self._output_filename_config.add_section('output')
+               self._output_filename_config.set('output', 'filename', str(self.output_filename))
+               self._output_filename_config.write(open(self.config_filename, 'w'))
+
+       def set_decim(self, decim):
+               self.decim = decim
+               self.set_sample_rate(64e6/self.decim)
+               self._decim_config = ConfigParser.ConfigParser()
+               self._decim_config.read(self.config_filename)
+               if not self._decim_config.has_section('usrp'):
+                       self._decim_config.add_section('usrp')
+               self._decim_config.set('usrp', 'decim', str(self.decim))
+               self._decim_config.write(open(self.config_filename, 'w'))
+               self.set_decim_text(self.decim)
+               self.usrp_source.set_decim_rate(self.decim)
+
+       def set_sym_rate(self, sym_rate):
+               self.sym_rate = sym_rate
+               self.set_sps(self.sample_rate/self.sym_rate)
+
+       def set_sample_rate(self, sample_rate):
+               self.sample_rate = sample_rate
+               self.set_max_carrier_offset(2*math.pi*100e3/self.sample_rate)
+               self.set_sps(self.sample_rate/self.sym_rate)
+               self.rx_scope.set_sample_rate(self.sample_rate)
+               self.rx_fft.set_sample_rate(self.sample_rate)
+               self.pll_scope.set_sample_rate(self.sample_rate)
+
+       def set_sps(self, sps):
+               self.sps = sps
+               self.set_hs(int(self.sps/2.0))
+
+       def set_side(self, side):
+               self.side = side
+               self.set_side_text(self.side)
+               self._side_config = ConfigParser.ConfigParser()
+               self._side_config.read(self.config_filename)
+               if not self._side_config.has_section('usrp'):
+                       self._side_config.add_section('usrp')
+               self._side_config.set('usrp', 'side', str(self.side))
+               self._side_config.write(open(self.config_filename, 'w'))
+
+       def set_saved_sync_alpha(self, saved_sync_alpha):
+               self.saved_sync_alpha = saved_sync_alpha
+               self.set_sync_alpha(self.saved_sync_alpha)
+
+       def set_saved_pll_alpha(self, saved_pll_alpha):
+               self.saved_pll_alpha = saved_pll_alpha
+               self.set_pll_alpha(self.saved_pll_alpha)
+
+       def set_saved_gain(self, saved_gain):
+               self.saved_gain = saved_gain
+               self.set_gain(self.saved_gain)
+
+       def set_saved_freq(self, saved_freq):
+               self.saved_freq = saved_freq
+               self.set_freq(self.saved_freq)
+
+       def set_sync_alpha(self, sync_alpha):
+               self.sync_alpha = sync_alpha
+               self._sync_alpha_slider.set_value(self.sync_alpha)
+               self._sync_alpha_text_box.set_value(self.sync_alpha)
+               self._saved_sync_alpha_config = ConfigParser.ConfigParser()
+               self._saved_sync_alpha_config.read(self.config_filename)
+               if not self._saved_sync_alpha_config.has_section('demod'):
+                       self._saved_sync_alpha_config.add_section('demod')
+               self._saved_sync_alpha_config.set('demod', 'sync_alpha', str(self.sync_alpha))
+               self._saved_sync_alpha_config.write(open(self.config_filename, 'w'))
+               self.sync.set_alpha(self.sync_alpha)
+               self.sync.set_beta(self.sync_alpha**2/4.0)
+
+       def set_side_text(self, side_text):
+               self.side_text = side_text
+               self._side_text_static_text.set_value(self.side_text)
+
+       def set_pll_alpha(self, pll_alpha):
+               self.pll_alpha = pll_alpha
+               self._pll_alpha_slider.set_value(self.pll_alpha)
+               self._pll_alpha_text_box.set_value(self.pll_alpha)
+               self._saved_pll_alpha_config = ConfigParser.ConfigParser()
+               self._saved_pll_alpha_config.read(self.config_filename)
+               if not self._saved_pll_alpha_config.has_section('demod'):
+                       self._saved_pll_alpha_config.add_section('demod')
+               self._saved_pll_alpha_config.set('demod', 'pll_alpha', str(self.pll_alpha))
+               self._saved_pll_alpha_config.write(open(self.config_filename, 'w'))
+               self.pll.set_alpha(self.pll_alpha)
+               self.pll.set_beta(self.pll_alpha**2/4.0)
+
+       def set_output_filename(self, output_filename):
+               self.output_filename = output_filename
+               self._output_filename_config = ConfigParser.ConfigParser()
+               self._output_filename_config.read(self.config_filename)
+               if not self._output_filename_config.has_section('output'):
+                       self._output_filename_config.add_section('output')
+               self._output_filename_config.set('output', 'filename', str(self.output_filename))
+               self._output_filename_config.write(open(self.config_filename, 'w'))
+
+       def set_max_sync_offset(self, max_sync_offset):
+               self.max_sync_offset = max_sync_offset
+               self.sync.set_max_offset(self.max_sync_offset)
+
+       def set_max_carrier_offset(self, max_carrier_offset):
+               self.max_carrier_offset = max_carrier_offset
+               self.pll.set_max_offset(self.max_carrier_offset)
+
+       def set_hs(self, hs):
+               self.hs = hs
+               self.matched_filter.set_length_and_scale(self.hs, 1.0/self.hs)
+
+       def set_gain(self, gain):
+               self.gain = gain
+               self._gain_slider.set_value(self.gain)
+               self._gain_text_box.set_value(self.gain)
+               self._saved_gain_config = ConfigParser.ConfigParser()
+               self._saved_gain_config.read(self.config_filename)
+               if not self._saved_gain_config.has_section('usrp'):
+                       self._saved_gain_config.add_section('usrp')
+               self._saved_gain_config.set('usrp', 'gain', str(self.gain))
+               self._saved_gain_config.write(open(self.config_filename, 'w'))
+               self.usrp_source.set_gain(self.gain)
+
+       def set_freq(self, freq):
+               self.freq = freq
+               self._freq_text_box.set_value(self.freq)
+               self._saved_freq_config = ConfigParser.ConfigParser()
+               self._saved_freq_config.read(self.config_filename)
+               if not self._saved_freq_config.has_section('usrp'):
+                       self._saved_freq_config.add_section('usrp')
+               self._saved_freq_config.set('usrp', 'freq', str(self.freq))
+               self._saved_freq_config.write(open(self.config_filename, 'w'))
+               self.usrp_source.set_frequency(self.freq)
+               self.rx_fft.set_baseband_freq(self.freq)
+
+       def set_decim_text(self, decim_text):
+               self.decim_text = decim_text
+               self._decim_text_static_text.set_value(self.decim_text)
+
+if __name__ == '__main__':
+       parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
+       (options, args) = parser.parse_args()
+       tb = usrp_rx_hrpt()
+       tb.Run(True)
+

diff --git a/gr-noaa/apps/usrp_rx_lrit.grc b/gr-noaa/apps/usrp_rx_lrit.grc
new file mode 100644 (file)
index 0000000..55fe397
--- /dev/null
+++ b/gr-noaa/apps/usrp_rx_lrit.grc
@@ -0,0 +1,1477 @@
+<?xml version='1.0' encoding='ASCII'?>
+<flow_graph>
+  <timestamp>Sat Aug 29 11:26:03 2009</timestamp>
+  <block>
+    <key>options</key>
+    <param>
+      <key>id</key>
+      <value>usrp_rx_lrit</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>USRP LRIT Receiver</value>
+    </param>
+    <param>
+      <key>author</key>
+      <value></value>
+    </param>
+    <param>
+      <key>description</key>
+      <value></value>
+    </param>
+    <param>
+      <key>window_size</key>
+      <value>4095, 4095</value>
+    </param>
+    <param>
+      <key>generate_options</key>
+      <value>wx_gui</value>
+    </param>
+    <param>
+      <key>category</key>
+      <value>Custom</value>
+    </param>
+    <param>
+      <key>run</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>realtime_scheduling</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(10, 10)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>64e6/decim</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(10, 81)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>symbol_rate</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>293e3</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(11, 148)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>sps</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>samp_rate/symbol_rate</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(12, 214)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_text_box</key>
+    <param>
+      <key>id</key>
+      <value>decim</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Decim</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>saved_decim</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>int_converter</value>
+    </param>
+    <param>
+      <key>formatter</key>
+      <value>None</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0, 0, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(243, 13)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>wxgui_scopesink2</key>
+    <param>
+      <key>id</key>
+      <value>wxgui_scopesink2_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>Waveform</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>v_scale</key>
+      <value>0.5</value>
+    </param>
+    <param>
+      <key>t_scale</key>
+      <value>20.0/samp_rate</value>
+    </param>
+    <param>
+      <key>ac_couple</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>xy_mode</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>num_inputs</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>1, 0, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value>displays, 0</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(434, 551)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_agc_xx</key>
+    <param>
+      <key>id</key>
+      <value>gr_agc_xx_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>rate</key>
+      <value>1e-6</value>
+    </param>
+    <param>
+      <key>reference</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>gain</key>
+      <value>1.0/32767.0</value>
+    </param>
+    <param>
+      <key>max_gain</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(261, 493)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>root_raised_cosine_filter</key>
+    <param>
+      <key>id</key>
+      <value>root_raised_cosine_filter_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>fir_filter_ccf</value>
+    </param>
+    <param>
+      <key>decim</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>interp</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>gain</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>sym_rate</key>
+      <value>symbol_rate</value>
+    </param>
+    <param>
+      <key>alpha</key>
+      <value>0.5</value>
+    </param>
+    <param>
+      <key>ntaps</key>
+      <value>50</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(618, 373)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>usrp_simple_source_x</key>
+    <param>
+      <key>id</key>
+      <value>usrp_simple_source_x_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>format</key>
+      <value></value>
+    </param>
+    <param>
+      <key>which</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>decimation</key>
+      <value>decim</value>
+    </param>
+    <param>
+      <key>frequency</key>
+      <value>freq</value>
+    </param>
+    <param>
+      <key>lo_offset</key>
+      <value>float('inf')</value>
+    </param>
+    <param>
+      <key>gain</key>
+      <value>gain</value>
+    </param>
+    <param>
+      <key>side</key>
+      <value>B</value>
+    </param>
+    <param>
+      <key>rx_ant</key>
+      <value>RXA</value>
+    </param>
+    <param>
+      <key>hb_filters</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(11, 477)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>wxgui_fftsink2</key>
+    <param>
+      <key>id</key>
+      <value>wxgui_fftsink2_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>Spectrum</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>baseband_freq</key>
+      <value>freq</value>
+    </param>
+    <param>
+      <key>y_per_div</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>y_divs</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ref_level</key>
+      <value>50</value>
+    </param>
+    <param>
+      <key>fft_size</key>
+      <value>1024</value>
+    </param>
+    <param>
+      <key>fft_rate</key>
+      <value>30</value>
+    </param>
+    <param>
+      <key>peak_hold</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>average</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>avg_alpha</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0, 0, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value>displays, 0</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(434, 337)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_throttle</key>
+    <param>
+      <key>id</key>
+      <value>gr_throttle_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>samples_per_second</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(181, 663)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>wxgui_scopesink2</key>
+    <param>
+      <key>id</key>
+      <value>wxgui_scopesink2_1</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>Scope Plot</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>v_scale</key>
+      <value>0.4</value>
+    </param>
+    <param>
+      <key>t_scale</key>
+      <value>20.0/samp_rate</value>
+    </param>
+    <param>
+      <key>ac_couple</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>xy_mode</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>num_inputs</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0, 0, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value>displays, 1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1126, 251)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_probe_mpsk_snr_c</key>
+    <param>
+      <key>id</key>
+      <value>gr_probe_mpsk_snr_c_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>snr</value>
+    </param>
+    <param>
+      <key>alpha</key>
+      <value>0.0001</value>
+    </param>
+    <param>
+      <key>probe_rate</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1126, 723)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>wxgui_numbersink2</key>
+    <param>
+      <key>id</key>
+      <value>wxgui_numbersink2_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>SNR</value>
+    </param>
+    <param>
+      <key>units</key>
+      <value>dB</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>min_value</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>max_value</key>
+      <value>30</value>
+    </param>
+    <param>
+      <key>factor</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>decimal_places</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>ref_level</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>number_rate</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>peak_hold</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>average</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>avg_alpha</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>show_gauge</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>2, 0, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value>displays, 1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1335, 651)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_mpsk_receiver_cc</key>
+    <param>
+      <key>id</key>
+      <value>gr_mpsk_receiver_cc_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>M</key>
+      <value>2</value>
+    </param>
+    <param>
+      <key>theta</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>alpha</key>
+      <value>costas_alpha</value>
+    </param>
+    <param>
+      <key>beta</key>
+      <value>costas_alpha*costas_alpha/4.0</value>
+    </param>
+    <param>
+      <key>fmin</key>
+      <value>-0.05</value>
+    </param>
+    <param>
+      <key>fmax</key>
+      <value>0.05</value>
+    </param>
+    <param>
+      <key>mu</key>
+      <value>0.5</value>
+    </param>
+    <param>
+      <key>gain_mu</key>
+      <value>gain_mu</value>
+    </param>
+    <param>
+      <key>omega</key>
+      <value>sps</value>
+    </param>
+    <param>
+      <key>gain_omega</key>
+      <value>gain_mu*gain_mu/4.0</value>
+    </param>
+    <param>
+      <key>omega_relative_limit</key>
+      <value>0.05</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(881, 437)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_complex_to_real</key>
+    <param>
+      <key>id</key>
+      <value>gr_complex_to_real_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1133, 521)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_char_to_float</key>
+    <param>
+      <key>id</key>
+      <value>gr_char_to_float_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1523, 521)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_binary_slicer_fb</key>
+    <param>
+      <key>id</key>
+      <value>gr_binary_slicer_fb_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1343, 521)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_add_const_vxx</key>
+    <param>
+      <key>id</key>
+      <value>gr_add_const_vxx_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>const</key>
+      <value>48.0</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1707, 517)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_float_to_char</key>
+    <param>
+      <key>id</key>
+      <value>gr_float_to_char_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1878, 521)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_file_sink</key>
+    <param>
+      <key>id</key>
+      <value>gr_file_sink_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>file</key>
+      <value>bits.dat</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>byte</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(2059, 517)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_file_source</key>
+    <param>
+      <key>id</key>
+      <value>gr_file_source_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>file</key>
+      <value>lrit.dat</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>repeat</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(11, 655)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>notebook</key>
+    <param>
+      <key>id</key>
+      <value>displays</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>style</key>
+      <value>wx.NB_TOP</value>
+    </param>
+    <param>
+      <key>labels</key>
+      <value>['USRP RX', 'Costas Output']</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>2, 0, 1, 3</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(14, 351)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_config</key>
+    <param>
+      <key>id</key>
+      <value>saved_decim</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>160</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>int</value>
+    </param>
+    <param>
+      <key>config_file</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>section</key>
+      <value>main</value>
+    </param>
+    <param>
+      <key>option</key>
+      <value>decim</value>
+    </param>
+    <param>
+      <key>writeback</key>
+      <value>decim</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(246, 172)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_slider</key>
+    <param>
+      <key>id</key>
+      <value>gain</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Gain</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>saved_gain</value>
+    </param>
+    <param>
+      <key>min</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>max</key>
+      <value>115</value>
+    </param>
+    <param>
+      <key>num_steps</key>
+      <value>115</value>
+    </param>
+    <param>
+      <key>style</key>
+      <value>wx.SL_HORIZONTAL</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>float_converter</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0, 1, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(411, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_config</key>
+    <param>
+      <key>id</key>
+      <value>saved_gain</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>33</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>real</value>
+    </param>
+    <param>
+      <key>config_file</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>section</key>
+      <value>main</value>
+    </param>
+    <param>
+      <key>option</key>
+      <value>gain</value>
+    </param>
+    <param>
+      <key>writeback</key>
+      <value>gain</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(412, 172)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_slider</key>
+    <param>
+      <key>id</key>
+      <value>freq</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Frequency</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>saved_freq</value>
+    </param>
+    <param>
+      <key>min</key>
+      <value>135e6</value>
+    </param>
+    <param>
+      <key>max</key>
+      <value>139e6</value>
+    </param>
+    <param>
+      <key>num_steps</key>
+      <value>400</value>
+    </param>
+    <param>
+      <key>style</key>
+      <value>wx.SL_HORIZONTAL</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>float_converter</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0, 2, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(574, 12)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_config</key>
+    <param>
+      <key>id</key>
+      <value>saved_freq</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>137e6</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>real</value>
+    </param>
+    <param>
+      <key>config_file</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>section</key>
+      <value>main</value>
+    </param>
+    <param>
+      <key>option</key>
+      <value>freq</value>
+    </param>
+    <param>
+      <key>writeback</key>
+      <value>freq</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(576, 170)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_slider</key>
+    <param>
+      <key>id</key>
+      <value>costas_alpha</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Costas Alpha</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>saved_costas_alpha</value>
+    </param>
+    <param>
+      <key>min</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>max</key>
+      <value>0.5</value>
+    </param>
+    <param>
+      <key>num_steps</key>
+      <value>100</value>
+    </param>
+    <param>
+      <key>style</key>
+      <value>wx.SL_HORIZONTAL</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>float_converter</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>1, 0, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(738, 13)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_config</key>
+    <param>
+      <key>id</key>
+      <value>saved_costas_alpha</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0.005</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>real</value>
+    </param>
+    <param>
+      <key>config_file</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>section</key>
+      <value>main</value>
+    </param>
+    <param>
+      <key>option</key>
+      <value>costas_alpha</value>
+    </param>
+    <param>
+      <key>writeback</key>
+      <value>costas_alpha</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(739, 170)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_config</key>
+    <param>
+      <key>id</key>
+      <value>saved_gain_mu</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0.005</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>real</value>
+    </param>
+    <param>
+      <key>config_file</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>section</key>
+      <value>main</value>
+    </param>
+    <param>
+      <key>option</key>
+      <value>gain_mu</value>
+    </param>
+    <param>
+      <key>writeback</key>
+      <value>gain_mu</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(900, 170)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_slider</key>
+    <param>
+      <key>id</key>
+      <value>gain_mu</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Gain Mu</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>saved_gain_mu</value>
+    </param>
+    <param>
+      <key>min</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>max</key>
+      <value>0.5</value>
+    </param>
+    <param>
+      <key>num_steps</key>
+      <value>100</value>
+    </param>
+    <param>
+      <key>style</key>
+      <value>wx.SL_HORIZONTAL</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>float_converter</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>1, 1, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(902, 13)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>"usrp_rx_lrit.cfg"</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(13, 283)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <connection>
+    <source_block_id>usrp_simple_source_x_0</source_block_id>
+    <sink_block_id>gr_agc_xx_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gr_agc_xx_0</source_block_id>
+    <sink_block_id>wxgui_scopesink2_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gr_file_source_0</source_block_id>
+    <sink_block_id>gr_throttle_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gr_throttle_0</source_block_id>
+    <sink_block_id>gr_agc_xx_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gr_probe_mpsk_snr_c_0</source_block_id>
+    <sink_block_id>wxgui_numbersink2_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gr_mpsk_receiver_cc_0</source_block_id>
+    <sink_block_id>gr_probe_mpsk_snr_c_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gr_agc_xx_0</source_block_id>
+    <sink_block_id>gr_mpsk_receiver_cc_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gr_mpsk_receiver_cc_0</source_block_id>
+    <sink_block_id>wxgui_scopesink2_1</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gr_agc_xx_0</source_block_id>
+    <sink_block_id>wxgui_fftsink2_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gr_mpsk_receiver_cc_0</source_block_id>
+    <sink_block_id>gr_complex_to_real_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gr_complex_to_real_0</source_block_id>
+    <sink_block_id>gr_binary_slicer_fb_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gr_binary_slicer_fb_0</source_block_id>
+    <sink_block_id>gr_char_to_float_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gr_char_to_float_0</source_block_id>
+    <sink_block_id>gr_add_const_vxx_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gr_add_const_vxx_0</source_block_id>
+    <sink_block_id>gr_float_to_char_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gr_float_to_char_0</source_block_id>
+    <sink_block_id>gr_file_sink_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+</flow_graph>

diff --git a/gr-noaa/apps/usrp_rx_lrit.py b/gr-noaa/apps/usrp_rx_lrit.py
new file mode 100755 (executable)
index 0000000..bc313e3
--- /dev/null
+++ b/gr-noaa/apps/usrp_rx_lrit.py
@@ -0,0 +1,399 @@
+#!/usr/bin/env python
+##################################################
+# Gnuradio Python Flow Graph
+# Title: USRP LRIT Receiver
+# Generated: Sat Aug 29 11:26:03 2009
+##################################################
+
+from gnuradio import gr
+from gnuradio.eng_option import eng_option
+from gnuradio.wxgui import fftsink2
+from gnuradio.wxgui import forms
+from gnuradio.wxgui import numbersink2
+from gnuradio.wxgui import scopesink2
+from grc_gnuradio import blks2 as grc_blks2
+from grc_gnuradio import wxgui as grc_wxgui
+from optparse import OptionParser
+import ConfigParser
+import wx
+
+class usrp_rx_lrit(grc_wxgui.top_block_gui):
+
+       def __init__(self):
+               grc_wxgui.top_block_gui.__init__(self, title="USRP LRIT Receiver")
+
+               ##################################################
+               # Variables
+               ##################################################
+               self.config_filename = config_filename = "usrp_rx_lrit.cfg"
+               self._saved_decim_config = ConfigParser.ConfigParser()
+               self._saved_decim_config.read(config_filename)
+               try: saved_decim = self._saved_decim_config.getint("main", "decim")
+               except: saved_decim = 160
+               self.saved_decim = saved_decim
+               self.decim = decim = saved_decim
+               self.symbol_rate = symbol_rate = 293e3
+               self._saved_gain_mu_config = ConfigParser.ConfigParser()
+               self._saved_gain_mu_config.read(config_filename)
+               try: saved_gain_mu = self._saved_gain_mu_config.getfloat("main", "gain_mu")
+               except: saved_gain_mu = 0.005
+               self.saved_gain_mu = saved_gain_mu
+               self._saved_gain_config = ConfigParser.ConfigParser()
+               self._saved_gain_config.read(config_filename)
+               try: saved_gain = self._saved_gain_config.getfloat("main", "gain")
+               except: saved_gain = 33
+               self.saved_gain = saved_gain
+               self._saved_freq_config = ConfigParser.ConfigParser()
+               self._saved_freq_config.read(config_filename)
+               try: saved_freq = self._saved_freq_config.getfloat("main", "freq")
+               except: saved_freq = 137e6
+               self.saved_freq = saved_freq
+               self._saved_costas_alpha_config = ConfigParser.ConfigParser()
+               self._saved_costas_alpha_config.read(config_filename)
+               try: saved_costas_alpha = self._saved_costas_alpha_config.getfloat("main", "costas_alpha")
+               except: saved_costas_alpha = 0.005
+               self.saved_costas_alpha = saved_costas_alpha
+               self.samp_rate = samp_rate = 64e6/decim
+               self.sps = sps = samp_rate/symbol_rate
+               self.gain_mu = gain_mu = saved_gain_mu
+               self.gain = gain = saved_gain
+               self.freq = freq = saved_freq
+               self.costas_alpha = costas_alpha = saved_costas_alpha
+
+               ##################################################
+               # Notebooks
+               ##################################################
+               self.displays = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
+               self.displays.AddPage(grc_wxgui.Panel(self.displays), "USRP RX")
+               self.displays.AddPage(grc_wxgui.Panel(self.displays), "Costas Output")
+               self.GridAdd(self.displays, 2, 0, 1, 3)
+
+               ##################################################
+               # Controls
+               ##################################################
+               self._decim_text_box = forms.text_box(
+                       parent=self.GetWin(),
+                       value=self.decim,
+                       callback=self.set_decim,
+                       label="Decim",
+                       converter=forms.int_converter(),
+               )
+               self.GridAdd(self._decim_text_box, 0, 0, 1, 1)
+               _gain_mu_sizer = wx.BoxSizer(wx.VERTICAL)
+               self._gain_mu_text_box = forms.text_box(
+                       parent=self.GetWin(),
+                       sizer=_gain_mu_sizer,
+                       value=self.gain_mu,
+                       callback=self.set_gain_mu,
+                       label="Gain Mu",
+                       converter=forms.float_converter(),
+                       proportion=0,
+               )
+               self._gain_mu_slider = forms.slider(
+                       parent=self.GetWin(),
+                       sizer=_gain_mu_sizer,
+                       value=self.gain_mu,
+                       callback=self.set_gain_mu,
+                       minimum=0,
+                       maximum=0.5,
+                       num_steps=100,
+                       style=wx.SL_HORIZONTAL,
+                       cast=float,
+                       proportion=1,
+               )
+               self.GridAdd(_gain_mu_sizer, 1, 1, 1, 1)
+               _gain_sizer = wx.BoxSizer(wx.VERTICAL)
+               self._gain_text_box = forms.text_box(
+                       parent=self.GetWin(),
+                       sizer=_gain_sizer,
+                       value=self.gain,
+                       callback=self.set_gain,
+                       label="Gain",
+                       converter=forms.float_converter(),
+                       proportion=0,
+               )
+               self._gain_slider = forms.slider(
+                       parent=self.GetWin(),
+                       sizer=_gain_sizer,
+                       value=self.gain,
+                       callback=self.set_gain,
+                       minimum=0,
+                       maximum=115,
+                       num_steps=115,
+                       style=wx.SL_HORIZONTAL,
+                       cast=float,
+                       proportion=1,
+               )
+               self.GridAdd(_gain_sizer, 0, 1, 1, 1)
+               _freq_sizer = wx.BoxSizer(wx.VERTICAL)
+               self._freq_text_box = forms.text_box(
+                       parent=self.GetWin(),
+                       sizer=_freq_sizer,
+                       value=self.freq,
+                       callback=self.set_freq,
+                       label="Frequency",
+                       converter=forms.float_converter(),
+                       proportion=0,
+               )
+               self._freq_slider = forms.slider(
+                       parent=self.GetWin(),
+                       sizer=_freq_sizer,
+                       value=self.freq,
+                       callback=self.set_freq,
+                       minimum=135e6,
+                       maximum=139e6,
+                       num_steps=400,
+                       style=wx.SL_HORIZONTAL,
+                       cast=float,
+                       proportion=1,
+               )
+               self.GridAdd(_freq_sizer, 0, 2, 1, 1)
+               _costas_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
+               self._costas_alpha_text_box = forms.text_box(
+                       parent=self.GetWin(),
+                       sizer=_costas_alpha_sizer,
+                       value=self.costas_alpha,
+                       callback=self.set_costas_alpha,
+                       label="Costas Alpha",
+                       converter=forms.float_converter(),
+                       proportion=0,
+               )
+               self._costas_alpha_slider = forms.slider(
+                       parent=self.GetWin(),
+                       sizer=_costas_alpha_sizer,
+                       value=self.costas_alpha,
+                       callback=self.set_costas_alpha,
+                       minimum=0,
+                       maximum=0.5,
+                       num_steps=100,
+                       style=wx.SL_HORIZONTAL,
+                       cast=float,
+                       proportion=1,
+               )
+               self.GridAdd(_costas_alpha_sizer, 1, 0, 1, 1)
+
+               ##################################################
+               # Blocks
+               ##################################################
+               self.gr_add_const_vxx_0 = gr.add_const_vff((48.0, ))
+               self.gr_agc_xx_0 = gr.agc_cc(1e-6, 1.0, 1.0/32767.0, 1.0)
+               self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
+               self.gr_char_to_float_0 = gr.char_to_float()
+               self.gr_complex_to_real_0 = gr.complex_to_real(1)
+               self.gr_file_sink_0 = gr.file_sink(gr.sizeof_char*1, "bits.dat")
+               self.gr_file_source_0 = gr.file_source(gr.sizeof_gr_complex*1, "lrit.dat", False)
+               self.gr_float_to_char_0 = gr.float_to_char()
+               self.gr_mpsk_receiver_cc_0 = gr.mpsk_receiver_cc(2, 0, costas_alpha, costas_alpha*costas_alpha/4.0, -0.05, 0.05, 0.5, gain_mu, sps, gain_mu*gain_mu/4.0, 0.05)
+               self.gr_probe_mpsk_snr_c_0 = grc_blks2.probe_mpsk_snr_c(
+                       type='snr',
+                       alpha=0.0001,
+                       probe_rate=10,
+               )
+               self.gr_throttle_0 = gr.throttle(gr.sizeof_gr_complex*1, samp_rate)
+               self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
+                       self.displays.GetPage(0).GetWin(),
+                       baseband_freq=freq,
+                       y_per_div=10,
+                       y_divs=10,
+                       ref_level=50,
+                       sample_rate=samp_rate,
+                       fft_size=1024,
+                       fft_rate=30,
+                       average=False,
+                       avg_alpha=None,
+                       title="Spectrum",
+                       peak_hold=False,
+               )
+               self.displays.GetPage(0).GridAdd(self.wxgui_fftsink2_0.win, 0, 0, 1, 1)
+               self.wxgui_numbersink2_0 = numbersink2.number_sink_f(
+                       self.displays.GetPage(1).GetWin(),
+                       unit="dB",
+                       minval=0,
+                       maxval=30,
+                       factor=1.0,
+                       decimal_places=1,
+                       ref_level=0,
+                       sample_rate=10,
+                       number_rate=10,
+                       average=False,
+                       avg_alpha=None,
+                       label="SNR",
+                       peak_hold=False,
+                       show_gauge=True,
+               )
+               self.displays.GetPage(1).GridAdd(self.wxgui_numbersink2_0.win, 2, 0, 1, 1)
+               self.wxgui_scopesink2_0 = scopesink2.scope_sink_c(
+                       self.displays.GetPage(0).GetWin(),
+                       title="Waveform",
+                       sample_rate=samp_rate,
+                       v_scale=0.5,
+                       t_scale=20.0/samp_rate,
+                       ac_couple=False,
+                       xy_mode=True,
+                       num_inputs=1,
+               )
+               self.displays.GetPage(0).GridAdd(self.wxgui_scopesink2_0.win, 1, 0, 1, 1)
+               self.wxgui_scopesink2_1 = scopesink2.scope_sink_c(
+                       self.displays.GetPage(1).GetWin(),
+                       title="Scope Plot",
+                       sample_rate=samp_rate,
+                       v_scale=0.4,
+                       t_scale=20.0/samp_rate,
+                       ac_couple=False,
+                       xy_mode=True,
+                       num_inputs=1,
+               )
+               self.displays.GetPage(1).GridAdd(self.wxgui_scopesink2_1.win, 0, 0, 1, 1)
+
+               ##################################################
+               # Connections
+               ##################################################
+               self.connect((self.gr_agc_xx_0, 0), (self.wxgui_scopesink2_0, 0))
+               self.connect((self.gr_file_source_0, 0), (self.gr_throttle_0, 0))
+               self.connect((self.gr_throttle_0, 0), (self.gr_agc_xx_0, 0))
+               self.connect((self.gr_probe_mpsk_snr_c_0, 0), (self.wxgui_numbersink2_0, 0))
+               self.connect((self.gr_mpsk_receiver_cc_0, 0), (self.gr_probe_mpsk_snr_c_0, 0))
+               self.connect((self.gr_agc_xx_0, 0), (self.gr_mpsk_receiver_cc_0, 0))
+               self.connect((self.gr_mpsk_receiver_cc_0, 0), (self.wxgui_scopesink2_1, 0))
+               self.connect((self.gr_agc_xx_0, 0), (self.wxgui_fftsink2_0, 0))
+               self.connect((self.gr_mpsk_receiver_cc_0, 0), (self.gr_complex_to_real_0, 0))
+               self.connect((self.gr_complex_to_real_0, 0), (self.gr_binary_slicer_fb_0, 0))
+               self.connect((self.gr_binary_slicer_fb_0, 0), (self.gr_char_to_float_0, 0))
+               self.connect((self.gr_char_to_float_0, 0), (self.gr_add_const_vxx_0, 0))
+               self.connect((self.gr_add_const_vxx_0, 0), (self.gr_float_to_char_0, 0))
+               self.connect((self.gr_float_to_char_0, 0), (self.gr_file_sink_0, 0))
+
+       def set_config_filename(self, config_filename):
+               self.config_filename = config_filename
+               self._saved_decim_config = ConfigParser.ConfigParser()
+               self._saved_decim_config.read(self.config_filename)
+               if not self._saved_decim_config.has_section("main"):
+                       self._saved_decim_config.add_section("main")
+               self._saved_decim_config.set("main", "decim", str(self.decim))
+               self._saved_decim_config.write(open(self.config_filename, 'w'))
+               self._saved_gain_config = ConfigParser.ConfigParser()
+               self._saved_gain_config.read(self.config_filename)
+               if not self._saved_gain_config.has_section("main"):
+                       self._saved_gain_config.add_section("main")
+               self._saved_gain_config.set("main", "gain", str(self.gain))
+               self._saved_gain_config.write(open(self.config_filename, 'w'))
+               self._saved_freq_config = ConfigParser.ConfigParser()
+               self._saved_freq_config.read(self.config_filename)
+               if not self._saved_freq_config.has_section("main"):
+                       self._saved_freq_config.add_section("main")
+               self._saved_freq_config.set("main", "freq", str(self.freq))
+               self._saved_freq_config.write(open(self.config_filename, 'w'))
+               self._saved_costas_alpha_config = ConfigParser.ConfigParser()
+               self._saved_costas_alpha_config.read(self.config_filename)
+               if not self._saved_costas_alpha_config.has_section("main"):
+                       self._saved_costas_alpha_config.add_section("main")
+               self._saved_costas_alpha_config.set("main", "costas_alpha", str(self.costas_alpha))
+               self._saved_costas_alpha_config.write(open(self.config_filename, 'w'))
+               self._saved_gain_mu_config = ConfigParser.ConfigParser()
+               self._saved_gain_mu_config.read(self.config_filename)
+               if not self._saved_gain_mu_config.has_section("main"):
+                       self._saved_gain_mu_config.add_section("main")
+               self._saved_gain_mu_config.set("main", "gain_mu", str(self.gain_mu))
+               self._saved_gain_mu_config.write(open(self.config_filename, 'w'))
+
+       def set_saved_decim(self, saved_decim):
+               self.saved_decim = saved_decim
+               self.set_decim(self.saved_decim)
+
+       def set_decim(self, decim):
+               self.decim = decim
+               self.set_samp_rate(64e6/self.decim)
+               self._decim_text_box.set_value(self.decim)
+               self._saved_decim_config = ConfigParser.ConfigParser()
+               self._saved_decim_config.read(self.config_filename)
+               if not self._saved_decim_config.has_section("main"):
+                       self._saved_decim_config.add_section("main")
+               self._saved_decim_config.set("main", "decim", str(self.decim))
+               self._saved_decim_config.write(open(self.config_filename, 'w'))
+
+       def set_symbol_rate(self, symbol_rate):
+               self.symbol_rate = symbol_rate
+               self.set_sps(self.samp_rate/self.symbol_rate)
+
+       def set_saved_gain_mu(self, saved_gain_mu):
+               self.saved_gain_mu = saved_gain_mu
+               self.set_gain_mu(self.saved_gain_mu)
+
+       def set_saved_gain(self, saved_gain):
+               self.saved_gain = saved_gain
+               self.set_gain(self.saved_gain)
+
+       def set_saved_freq(self, saved_freq):
+               self.saved_freq = saved_freq
+               self.set_freq(self.saved_freq)
+
+       def set_saved_costas_alpha(self, saved_costas_alpha):
+               self.saved_costas_alpha = saved_costas_alpha
+               self.set_costas_alpha(self.saved_costas_alpha)
+
+       def set_samp_rate(self, samp_rate):
+               self.samp_rate = samp_rate
+               self.set_sps(self.samp_rate/self.symbol_rate)
+               self.wxgui_scopesink2_0.set_sample_rate(self.samp_rate)
+               self.wxgui_fftsink2_0.set_sample_rate(self.samp_rate)
+               self.wxgui_scopesink2_1.set_sample_rate(self.samp_rate)
+
+       def set_sps(self, sps):
+               self.sps = sps
+               self.gr_mpsk_receiver_cc_0.set_omega(self.sps)
+
+       def set_gain_mu(self, gain_mu):
+               self.gain_mu = gain_mu
+               self.gr_mpsk_receiver_cc_0.set_gain_mu(self.gain_mu)
+               self.gr_mpsk_receiver_cc_0.set_gain_omega(self.gain_mu*self.gain_mu/4.0)
+               self._saved_gain_mu_config = ConfigParser.ConfigParser()
+               self._saved_gain_mu_config.read(self.config_filename)
+               if not self._saved_gain_mu_config.has_section("main"):
+                       self._saved_gain_mu_config.add_section("main")
+               self._saved_gain_mu_config.set("main", "gain_mu", str(self.gain_mu))
+               self._saved_gain_mu_config.write(open(self.config_filename, 'w'))
+               self._gain_mu_slider.set_value(self.gain_mu)
+               self._gain_mu_text_box.set_value(self.gain_mu)
+
+       def set_gain(self, gain):
+               self.gain = gain
+               self._gain_slider.set_value(self.gain)
+               self._gain_text_box.set_value(self.gain)
+               self._saved_gain_config = ConfigParser.ConfigParser()
+               self._saved_gain_config.read(self.config_filename)
+               if not self._saved_gain_config.has_section("main"):
+                       self._saved_gain_config.add_section("main")
+               self._saved_gain_config.set("main", "gain", str(self.gain))
+               self._saved_gain_config.write(open(self.config_filename, 'w'))
+
+       def set_freq(self, freq):
+               self.freq = freq
+               self.wxgui_fftsink2_0.set_baseband_freq(self.freq)
+               self._freq_slider.set_value(self.freq)
+               self._freq_text_box.set_value(self.freq)
+               self._saved_freq_config = ConfigParser.ConfigParser()
+               self._saved_freq_config.read(self.config_filename)
+               if not self._saved_freq_config.has_section("main"):
+                       self._saved_freq_config.add_section("main")
+               self._saved_freq_config.set("main", "freq", str(self.freq))
+               self._saved_freq_config.write(open(self.config_filename, 'w'))
+
+       def set_costas_alpha(self, costas_alpha):
+               self.costas_alpha = costas_alpha
+               self.gr_mpsk_receiver_cc_0.set_alpha(self.costas_alpha)
+               self.gr_mpsk_receiver_cc_0.set_beta(self.costas_alpha*self.costas_alpha/4.0)
+               self._costas_alpha_slider.set_value(self.costas_alpha)
+               self._costas_alpha_text_box.set_value(self.costas_alpha)
+               self._saved_costas_alpha_config = ConfigParser.ConfigParser()
+               self._saved_costas_alpha_config.read(self.config_filename)
+               if not self._saved_costas_alpha_config.has_section("main"):
+                       self._saved_costas_alpha_config.add_section("main")
+               self._saved_costas_alpha_config.set("main", "costas_alpha", str(self.costas_alpha))
+               self._saved_costas_alpha_config.write(open(self.config_filename, 'w'))
+
+if __name__ == '__main__':
+       parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
+       (options, args) = parser.parse_args()
+       tb = usrp_rx_lrit()
+       tb.Run(True)
+

diff --git a/gr-noaa/grc/.gitignore b/gr-noaa/grc/.gitignore
new file mode 100644 (file)
index 0000000..70845e0
--- /dev/null
+++ b/gr-noaa/grc/.gitignore
@@ -0,0 +1 @@
+Makefile.in

diff --git a/gr-noaa/grc/Makefile.am b/gr-noaa/grc/Makefile.am
new file mode 100644 (file)
index 0000000..1f05647
--- /dev/null
+++ b/gr-noaa/grc/Makefile.am
@@ -0,0 +1,31 @@
+#
+# Copyright 2009 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
+
+grcblocksdir = $(prefix)/share/gnuradio/grc/blocks
+
+dist_grcblocks_DATA = \
+       noaa_hrpt_decoder.xml \
+       noaa_hrpt_deframer.xml \
+       noaa_hrpt_pll_cf.xml \
+       noaa_hrpt_sync_fb.xml
+

diff --git a/gr-noaa/grc/noaa_hrpt_decoder.xml b/gr-noaa/grc/noaa_hrpt_decoder.xml
new file mode 100644 (file)
index 0000000..183d72a
--- /dev/null
+++ b/gr-noaa/grc/noaa_hrpt_decoder.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0"?>
+<block>
+  <name>HRPT Decoder</name>
+  <key>noaa_hrpt_decoder</key>
+  <category>NOAA</category>
+  <import>from gnuradio import noaa</import>
+  <make>noaa.hrpt_decoder()</make>
+  <sink>
+    <name>in</name>
+    <type>short</type>
+  </sink>
+</block>

diff --git a/gr-noaa/grc/noaa_hrpt_deframer.xml b/gr-noaa/grc/noaa_hrpt_deframer.xml
new file mode 100644 (file)
index 0000000..af36abf
--- /dev/null
+++ b/gr-noaa/grc/noaa_hrpt_deframer.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0"?>
+<block>
+  <name>HRPT Deframer</name>
+  <key>noaa_hrpt_deframer</key>
+  <category>NOAA</category>
+  <import>from gnuradio import noaa</import>
+  <make>noaa.hrpt_deframer()</make>
+  <sink>
+    <name>in</name>
+    <type>byte</type>
+  </sink>
+  <source>
+    <name>out</name>
+    <type>short</type>
+  </source>
+</block>

diff --git a/gr-noaa/grc/noaa_hrpt_pll_cf.xml b/gr-noaa/grc/noaa_hrpt_pll_cf.xml
new file mode 100644 (file)
index 0000000..bbe15e8
--- /dev/null
+++ b/gr-noaa/grc/noaa_hrpt_pll_cf.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0"?>
+<block>
+  <name>HRPT PLL</name>
+  <key>noaa_hrpt_pll_cf</key>
+  <category>NOAA</category>
+  <import>from gnuradio import noaa</import>
+  <make>noaa.hrpt_pll_cf($alpha, $beta, $max_offset)</make>
+  <callback>set_alpha($alpha)</callback>
+  <callback>set_beta($beta)</callback>
+  <callback>set_max_offset($max_offset)</callback>
+  <param>
+    <name>Alpha</name>
+    <key>alpha</key>
+    <type>real</type>
+  </param>
+  <param>
+    <name>Beta</name>
+    <key>beta</key>
+    <type>real</type>
+  </param>
+  <param>
+    <name>Max Offset</name>
+    <key>max_offset</key>
+    <type>real</type>
+  </param>
+  <sink>
+    <name>in</name>
+    <type>complex</type>
+  </sink>
+  <source>
+    <name>out</name>
+    <type>float</type>
+  </source>
+</block>

diff --git a/gr-noaa/grc/noaa_hrpt_sync_fb.xml b/gr-noaa/grc/noaa_hrpt_sync_fb.xml
new file mode 100644 (file)
index 0000000..e066e34
--- /dev/null
+++ b/gr-noaa/grc/noaa_hrpt_sync_fb.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0"?>
+<block>
+  <name>HRPT SYNC</name>
+  <key>noaa_hrpt_sync_fb</key>
+  <category>NOAA</category>
+  <import>from gnuradio import noaa</import>
+  <make>noaa.hrpt_sync_fb($alpha, $beta, $sps, $max_offset)</make>
+  <callback>set_alpha($alpha)</callback>
+  <callback>set_beta($beta)</callback>
+  <callback>set_max_offset($max_offset)</callback>
+  <param>
+    <name>Alpha</name>
+    <key>alpha</key>
+    <type>real</type>
+  </param>
+  <param>
+    <name>Beta</name>
+    <key>beta</key>
+    <type>real</type>
+  </param>
+  <param>
+    <name>Samples/Symbol</name>
+    <key>sps</key>
+    <type>real</type>
+  </param>
+  <param>
+    <name>Max Offset</name>
+    <key>max_offset</key>
+    <type>real</type>
+  </param>
+  <sink>
+    <name>in</name>
+    <type>float</type>
+  </sink>
+  <source>
+    <name>out</name>
+    <type>byte</type>
+  </source>
+</block>

diff --git a/gr-noaa/lib/.gitignore b/gr-noaa/lib/.gitignore
new file mode 100644 (file)
index 0000000..02b0523
--- /dev/null
+++ b/gr-noaa/lib/.gitignore
@@ -0,0 +1,4 @@
+Makefile
+Makefile.in
+.deps
+.libs

diff --git a/gr-noaa/lib/Makefile.am b/gr-noaa/lib/Makefile.am
new file mode 100644 (file)
index 0000000..6435d19
--- /dev/null
+++ b/gr-noaa/lib/Makefile.am
@@ -0,0 +1,46 @@
+#
+# Copyright 2009 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
+
+AM_CPPFLAGS = \
+       $(STD_DEFINES_AND_INCLUDES) \
+       $(WITH_INCLUDES)
+
+lib_LTLIBRARIES = \
+       libgnuradio-noaa.la
+
+libgnuradio_noaa_la_SOURCES = \
+       noaa_hrpt_decoder.cc \
+       noaa_hrpt_deframer.cc \
+       noaa_hrpt_pll_cf.cc \
+       noaa_hrpt_sync_fb.cc
+
+libgnuradio_noaa_la_LIBADD = \
+       $(GNURADIO_CORE_LA)
+
+libgnuradio_noaa_la_LDFLAGS = $(NO_UNDEFINED) -version-info 0:0:0
+
+grinclude_HEADERS = \
+       noaa_hrpt_decoder.h \
+       noaa_hrpt_deframer.h \
+       noaa_hrpt_pll_cf.h \
+       noaa_hrpt_sync_fb.h

diff --git a/gr-noaa/lib/noaa_hrpt_decoder.cc b/gr-noaa/lib/noaa_hrpt_decoder.cc
new file mode 100644 (file)
index 0000000..8cfaa91
--- /dev/null
+++ b/gr-noaa/lib/noaa_hrpt_decoder.cc
@@ -0,0 +1,77 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2009 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <noaa_hrpt_decoder.h>
+#include <gr_io_signature.h>
+
+#define SYNC1 0x0284
+#define SYNC2 0x016F
+#define SYNC3 0x035C
+#define SYNC4 0x019D
+#define SYNC5 0x020F
+#define SYNC6 0x0095
+
+noaa_hrpt_decoder_sptr
+noaa_make_hrpt_decoder()
+{
+  return gnuradio::get_initial_sptr(new noaa_hrpt_decoder());
+}
+
+noaa_hrpt_decoder::noaa_hrpt_decoder()
+  : gr_sync_block("noaa_hrpt_decoder",
+                 gr_make_io_signature(1, 1, sizeof(short)),
+                 gr_make_io_signature(0, 0, 0))
+{
+  d_word_count = 0;
+}
+
+int
+noaa_hrpt_decoder::work(int noutput_items,
+                       gr_vector_const_void_star &input_items,
+                       gr_vector_void_star &output_items)
+{
+  const unsigned short *in = (const unsigned short*)input_items[0];
+
+  int i = 0;
+  while (i < noutput_items) {
+    unsigned short word = in[i++];
+    d_word_count++;
+    //fprintf(stderr, "%5u:  ", d_word_count);
+    for (int pos = 0; pos < 10; pos++) {
+      char ch = (word & (1 << 9)) ? '1' : '0';
+      word = word << 1;
+      //fprintf(stderr, "%c ", ch);
+    }
+    //fprintf(stderr, "\n");
+
+    if (d_word_count == 11090) {
+      d_word_count = 0;
+      //fprintf(stderr, "\n");
+    }
+  }
+
+  return i;
+}

diff --git a/gr-noaa/lib/noaa_hrpt_decoder.h b/gr-noaa/lib/noaa_hrpt_decoder.h
new file mode 100644 (file)
index 0000000..305243b
--- /dev/null
+++ b/gr-noaa/lib/noaa_hrpt_decoder.h
@@ -0,0 +1,47 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2009 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.
+ */
+
+#ifndef INCLUDED_NOAA_HRPT_DECODER_H
+#define INCLUDED_NOAA_HRPT_DECODER_H
+
+#include <gr_sync_block.h>
+
+class noaa_hrpt_decoder;
+typedef boost::shared_ptr<noaa_hrpt_decoder> noaa_hrpt_decoder_sptr;
+
+noaa_hrpt_decoder_sptr
+noaa_make_hrpt_decoder();
+
+class noaa_hrpt_decoder : public gr_sync_block
+{
+  friend noaa_hrpt_decoder_sptr noaa_make_hrpt_decoder();
+  noaa_hrpt_decoder();
+
+  unsigned int d_word_count;
+ 
+public:
+  int work(int noutput_items,
+          gr_vector_const_void_star &input_items,
+          gr_vector_void_star &output_items);
+};
+
+#endif /* INCLUDED_NOAA_HRPT_DECODER_H */

diff --git a/gr-noaa/lib/noaa_hrpt_deframer.cc b/gr-noaa/lib/noaa_hrpt_deframer.cc
new file mode 100644 (file)
index 0000000..b0de09c
--- /dev/null
+++ b/gr-noaa/lib/noaa_hrpt_deframer.cc
@@ -0,0 +1,125 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2009 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <noaa_hrpt_deframer.h>
+#include <gr_io_signature.h>
+#include <cstring>
+
+#define ST_IDLE   0
+#define ST_SYNCED 1
+
+#define SYNC1 0x0284
+#define SYNC2 0x016F
+#define SYNC3 0x035C
+#define SYNC4 0x019D
+#define SYNC5 0x020F
+#define SYNC6 0x0095
+
+#define HRPT_MINOR_FRAME_SYNC  0x0A116FD719D83C95LL
+
+static int frames_seen = 0;
+
+noaa_hrpt_deframer_sptr
+noaa_make_hrpt_deframer()
+{
+  return gnuradio::get_initial_sptr(new noaa_hrpt_deframer());
+}
+
+noaa_hrpt_deframer::noaa_hrpt_deframer()
+  : gr_block("noaa_hrpt_deframer",
+            gr_make_io_signature(1, 1, sizeof(char)),
+            gr_make_io_signature(1, 1, sizeof(short)))
+{
+  set_output_multiple(6); // room for writing full sync when received
+  enter_idle();
+}
+
+void
+noaa_hrpt_deframer::enter_idle()
+{
+  d_state = ST_IDLE;
+}
+
+void
+noaa_hrpt_deframer::enter_synced()
+{
+  d_state = ST_SYNCED;
+  d_bit_count = HRPT_BITS_PER_WORD;
+  d_word_count = HRPT_MINOR_FRAME_WORDS-HRPT_SYNC_WORDS;
+  d_word = 0;
+}
+
+int
+noaa_hrpt_deframer::general_work(int noutput_items,
+                                gr_vector_int &ninput_items,
+                                gr_vector_const_void_star &input_items,
+                                gr_vector_void_star &output_items)
+{
+  int ninputs = ninput_items[0];
+  const char *in = (const char *)input_items[0];
+  unsigned short *out = (unsigned short *)output_items[0];
+
+  int i = 0, j = 0;
+  while (i < ninputs && j < noutput_items) {
+    char bit = in[i++];
+
+    switch (d_state) {
+    case ST_IDLE:
+      d_shifter = (d_shifter << 1) | bit; // MSB transmitted first
+      
+      if ((d_shifter & 0x0FFFFFFFFFFFFFFF) == HRPT_MINOR_FRAME_SYNC) {
+       fprintf(stderr, "SYNC #%i", frames_seen++);
+       out[j++] = SYNC1;
+       out[j++] = SYNC2;
+       out[j++] = SYNC3;
+       out[j++] = SYNC4;
+       out[j++] = SYNC5;
+       out[j++] = SYNC6;
+       enter_synced();
+      }
+      break;
+
+    case ST_SYNCED:
+      d_word = (d_word << 1) | bit; // MSB transmitted first
+      if (--d_bit_count == 0) {
+       out[j++] = d_word;
+       d_word = 0;
+       d_bit_count = HRPT_BITS_PER_WORD;
+       if (--d_word_count == 0) {
+         fprintf(stderr, "...done\n");
+         enter_idle();
+       }
+      }
+      break;
+
+    default:
+      throw std::runtime_error("noaa_hrpt_deframer: bad state\n");
+    }
+  }
+
+  consume_each(i);
+  return j;
+}

diff --git a/gr-noaa/lib/noaa_hrpt_deframer.h b/gr-noaa/lib/noaa_hrpt_deframer.h
new file mode 100644 (file)
index 0000000..0aeb16a
--- /dev/null
+++ b/gr-noaa/lib/noaa_hrpt_deframer.h
@@ -0,0 +1,59 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2009 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.
+ */
+
+#ifndef INCLUDED_NOAA_HRPT_DEFRAMER_H
+#define INCLUDED_NOAA_HRPT_DEFRAMER_H
+
+#define HRPT_SYNC_WORDS        6
+#define HRPT_MINOR_FRAME_WORDS 11090
+#define HRPT_BITS_PER_WORD     10
+
+#include <gr_block.h>
+
+class noaa_hrpt_deframer;
+typedef boost::shared_ptr<noaa_hrpt_deframer> noaa_hrpt_deframer_sptr;
+
+noaa_hrpt_deframer_sptr
+noaa_make_hrpt_deframer();
+
+class noaa_hrpt_deframer : public gr_block
+{
+  friend noaa_hrpt_deframer_sptr noaa_make_hrpt_deframer();
+  noaa_hrpt_deframer();
+
+  unsigned int       d_state;
+  unsigned int       d_bit_count;
+  unsigned int       d_word_count;
+  unsigned long long d_shifter;     // 60 bit sync word
+  unsigned short     d_word;        // 10 bit HRPT word
+
+  void enter_idle();
+  void enter_synced();
+ 
+public:
+  int general_work(int noutput_items,
+                  gr_vector_int &ninput_items,
+                  gr_vector_const_void_star &input_items,
+                  gr_vector_void_star &output_items);
+};
+
+#endif /* INCLUDED_NOAA_HRPT_DEFRAMER_H */

diff --git a/gr-noaa/lib/noaa_hrpt_pll_cf.cc b/gr-noaa/lib/noaa_hrpt_pll_cf.cc
new file mode 100644 (file)
index 0000000..08ab1d1
--- /dev/null
+++ b/gr-noaa/lib/noaa_hrpt_pll_cf.cc
@@ -0,0 +1,82 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2009 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <noaa_hrpt_pll_cf.h>
+#include <gr_io_signature.h>
+#include <gr_math.h>
+#include <gr_sincos.h>
+
+#define M_TWOPI (2*M_PI)
+
+noaa_hrpt_pll_cf_sptr
+noaa_make_hrpt_pll_cf(float alpha, float beta, float max_offset)
+{
+  return gnuradio::get_initial_sptr(new noaa_hrpt_pll_cf(alpha, beta, max_offset));
+}
+
+noaa_hrpt_pll_cf::noaa_hrpt_pll_cf(float alpha, float beta, float max_offset)
+  : gr_sync_block("noaa_hrpt_pll_cf",
+                 gr_make_io_signature(1, 1, sizeof(gr_complex)),
+                 gr_make_io_signature(1, 1, sizeof(float))),
+    d_alpha(alpha), d_beta(beta), d_max_offset(max_offset),
+    d_phase(0.0), d_freq(0.0)
+{
+}
+
+float
+phase_wrap(float phase)
+{
+  while (phase < -M_PI)
+    phase += M_TWOPI;
+  while (phase > M_PI)
+    phase -= M_TWOPI;
+
+  return phase;
+}
+
+int
+noaa_hrpt_pll_cf::work(int noutput_items,
+                      gr_vector_const_void_star &input_items,
+                      gr_vector_void_star &output_items)
+{
+  const gr_complex *in = (const gr_complex *) input_items[0];
+  float *out = (float *) output_items[0];
+
+  for (int i = 0; i < noutput_items; i++) {
+
+    // Adjust PLL phase/frequency
+    float error = phase_wrap(gr_fast_atan2f(in[i].imag(), in[i].real()) - d_phase);
+    d_freq  = gr_branchless_clip(d_freq + error*d_beta, d_max_offset);
+    d_phase = phase_wrap(d_phase + error*d_alpha + d_freq);
+
+    // Generate and mix out carrier
+    float re, im;
+    gr_sincosf(d_phase, &im, &re);
+    out[i] = (in[i]*gr_complex(re, -im)).imag();
+  }
+
+  return noutput_items;
+}

diff --git a/gr-noaa/lib/noaa_hrpt_pll_cf.h b/gr-noaa/lib/noaa_hrpt_pll_cf.h
new file mode 100644 (file)
index 0000000..507d47f
--- /dev/null
+++ b/gr-noaa/lib/noaa_hrpt_pll_cf.h
@@ -0,0 +1,55 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2009 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.
+ */
+
+#ifndef INCLUDED_NOAA_HRPT_PLL_CF_H
+#define INCLUDED_NOAA_HRPT_PLL_CF_H
+
+#include <gr_sync_block.h>
+
+class noaa_hrpt_pll_cf;
+typedef boost::shared_ptr<noaa_hrpt_pll_cf> noaa_hrpt_pll_cf_sptr;
+
+noaa_hrpt_pll_cf_sptr
+noaa_make_hrpt_pll_cf(float alpha, float beta, float max_offset);
+
+class noaa_hrpt_pll_cf : public gr_sync_block
+{
+  friend noaa_hrpt_pll_cf_sptr noaa_make_hrpt_pll_cf(float alpha, float beta, float max_offset);
+  noaa_hrpt_pll_cf(float alpha, float beta, float max_offset);
+
+  float d_alpha;               // 1st order loop constant
+  float d_beta;                        // 2nd order loop constant
+  float d_max_offset;          // Maximum frequency offset, radians/sample
+  float d_phase;               // Instantaneous carrier phase
+  float d_freq;                        // Instantaneous carrier frequency, radians/sample
+
+ public:
+  virtual int work(int noutput_items,
+                  gr_vector_const_void_star &input_items,
+                  gr_vector_void_star &output_items);
+
+  void set_alpha(float alpha) { d_alpha = alpha; }
+  void set_beta(float beta) { d_beta = beta; }
+  void set_max_offset(float max_offset) { d_max_offset = max_offset; }
+};
+
+#endif /* INCLUDED_NOAA_HRPT_PLL_CF_H */

diff --git a/gr-noaa/lib/noaa_hrpt_sync_fb.cc b/gr-noaa/lib/noaa_hrpt_sync_fb.cc
new file mode 100644 (file)
index 0000000..f99947f
--- /dev/null
+++ b/gr-noaa/lib/noaa_hrpt_sync_fb.cc
@@ -0,0 +1,90 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2009 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <noaa_hrpt_sync_fb.h>
+#include <gr_io_signature.h>
+
+inline int signum(float f)
+{
+  return f >= 0.0 ? 1 : -1;
+}
+
+noaa_hrpt_sync_fb_sptr
+noaa_make_hrpt_sync_fb(float alpha, float beta, float sps, float max_offset)
+{
+  return gnuradio::get_initial_sptr(new noaa_hrpt_sync_fb(alpha, beta, sps, max_offset));
+}
+
+noaa_hrpt_sync_fb::noaa_hrpt_sync_fb(float alpha, float beta, float sps, float max_offset)
+  : gr_block("noaa_hrpt_sync_fb",
+            gr_make_io_signature(1, 1, sizeof(float)),
+            gr_make_io_signature(1, 1, sizeof(char))),
+    d_alpha(alpha), d_beta(beta), 
+    d_sps(sps), d_max_offset(max_offset),
+    d_phase(0.0), d_freq(1.0/sps),
+    d_last_sign(1)
+{
+}
+
+int
+noaa_hrpt_sync_fb::general_work(int noutput_items,
+                               gr_vector_int &ninput_items,
+                               gr_vector_const_void_star &input_items,
+                               gr_vector_void_star &output_items)
+{
+  int ninputs = ninput_items[0];
+  const float *in = (const float *)input_items[0];
+  char *out = (char *)output_items[0];
+
+  int i = 0, j = 0;
+  while (i < ninputs && j < noutput_items) {
+    float sample = in[i++];
+    int sign = signum(sample);
+    d_phase += d_freq;
+
+    // Train on zero crossings in center region of symbol
+    if (sign != d_last_sign) {
+      if (d_phase > 0.25 && d_phase < 0.75) {
+       float phase_err = d_phase-0.5;
+       d_phase -= phase_err*d_alpha;        // 1st order phase adjustment
+       d_freq -= phase_err*d_beta;          // 2nd order frequency adjustment
+      }
+
+      d_last_sign = sign;
+    }
+
+    if (d_phase > 1.0) {
+      if (sample < 0.0)
+       out[j++] = 1;
+      else
+       out[j++] = 0;
+      d_phase -= 1.0;
+    }
+  }
+
+  consume_each(i);
+  return j;
+}

diff --git a/gr-noaa/lib/noaa_hrpt_sync_fb.h b/gr-noaa/lib/noaa_hrpt_sync_fb.h
new file mode 100644 (file)
index 0000000..a9416b9
--- /dev/null
+++ b/gr-noaa/lib/noaa_hrpt_sync_fb.h
@@ -0,0 +1,58 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2009 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.
+ */
+
+#ifndef INCLUDED_NOAA_HRPT_SYNC_FB_H
+#define INCLUDED_NOAA_HRPT_SYNC_FB_H
+
+#include <gr_block.h>
+
+class noaa_hrpt_sync_fb;
+typedef boost::shared_ptr<noaa_hrpt_sync_fb> noaa_hrpt_sync_fb_sptr;
+
+noaa_hrpt_sync_fb_sptr
+noaa_make_hrpt_sync_fb(float alpha, float beta, float sps, float max_offset);
+
+class noaa_hrpt_sync_fb : public gr_block
+{
+  friend noaa_hrpt_sync_fb_sptr noaa_make_hrpt_sync_fb(float alpha, float beta, float sps, float max_offset);
+  noaa_hrpt_sync_fb(float alpha, float beta, float sps, float max_offset);
+
+  float d_alpha;               // 1st order loop constant
+  float d_beta;                        // 2nd order loop constant
+  float d_sps;                  // samples per symbol
+  float d_max_offset;          // Maximum frequency offset for d_sps, samples/symbol
+  float d_phase;               // Instantaneous symbol phase
+  float d_freq;                        // Instantaneous symbol frequency, samples/symbol
+  int   d_last_sign;            // Tracks zero crossings
+
+ public:
+  int general_work(int noutput_items,
+                  gr_vector_int &ninput_items,
+                  gr_vector_const_void_star &input_items,
+                  gr_vector_void_star &output_items);
+
+  void set_alpha(float alpha) { d_alpha = alpha; }
+  void set_beta(float beta) { d_beta = beta; }
+  void set_max_offset(float max_offset) { d_max_offset = max_offset; }
+};
+
+#endif /* INCLUDED_NOAA_HRPT_SYNC_FB_H */

diff --git a/gr-noaa/python/Makefile.am b/gr-noaa/python/Makefile.am
new file mode 100644 (file)
index 0000000..869c5f3
--- /dev/null
+++ b/gr-noaa/python/Makefile.am
@@ -0,0 +1,27 @@
+#
+# Copyright 2009 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
+
+if PYTHON
+
+endif
+

diff --git a/gr-noaa/swig/.gitignore b/gr-noaa/swig/.gitignore
new file mode 100644 (file)
index 0000000..d18a966
--- /dev/null
+++ b/gr-noaa/swig/.gitignore
@@ -0,0 +1,6 @@
+Makefile
+Makefile.in
+.deps
+.libs
+noaa_swig.cc
+noaa_swig.py

diff --git a/gr-noaa/swig/Makefile.am b/gr-noaa/swig/Makefile.am
new file mode 100644 (file)
index 0000000..cd7686e
--- /dev/null
+++ b/gr-noaa/swig/Makefile.am
@@ -0,0 +1,68 @@
+#
+# Copyright 2004,2005,2006,2008,2009 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
+
+AM_CPPFLAGS = \
+       $(STD_DEFINES_AND_INCLUDES) \
+       $(PYTHON_CPPFLAGS) \
+       $(WITH_INCLUDES) \
+       -I$(top_srcdir)/gr-noaa/lib
+
+if PYTHON
+# ----------------------------------------------------------------
+# The SWIG library
+# TESTS = run_tests
+
+TOP_SWIG_IFILES = \
+       noaa_swig.i
+
+# Install so that they end up available as:
+#   import gnuradio.noaa
+# This ends up at:
+#   ${prefix}/lib/python${python_version}/site-packages/gnuradio/noaa
+noaa_swig_pythondir_category = \
+       gnuradio/noaa
+
+# additional libraries for linking with the SWIG-generated library
+noaa_swig_la_swig_libadd = \
+       $(top_builddir)/gr-noaa/lib/libgnuradio-noaa.la
+
+# additional Python files to be installed along with the SWIG-generated one
+noaa_swig_python = \
+       __init__.py
+
+# additional SWIG files to be installed
+noaa_swig_swiginclude_headers =        \
+       noaa_swig.i \
+       noaa_hrpt_decoder.i \
+       noaa_hrpt_deframer.i \
+       noaa_hrpt_pll_cf.i \
+       noaa_hrpt_sync_fb.i
+
+include $(top_srcdir)/Makefile.swig
+
+# add some of the variables generated inside the Makefile.swig.gen
+BUILT_SOURCES = $(swig_built_sources)
+
+# Do not distribute the output of SWIG
+no_dist_files = $(swig_built_sources)
+endif

diff --git a/gr-noaa/swig/Makefile.swig.gen b/gr-noaa/swig/Makefile.swig.gen
new file mode 100644 (file)
index 0000000..3d7102f
--- /dev/null
+++ b/gr-noaa/swig/Makefile.swig.gen
@@ -0,0 +1,259 @@
+# -*- Makefile -*-
+#
+# Copyright 2009 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.
+# 
+
+# Makefile.swig.gen for noaa_swig.i
+
+## Default install locations for these files:
+##
+## Default location for the Python directory is:
+##  ${prefix}/lib/python${python_version}/site-packages/[category]/noaa_swig
+## Default location for the Python exec directory is:
+##  ${exec_prefix}/lib/python${python_version}/site-packages/[category]/noaa_swig
+##
+## The following can be overloaded to change the install location, but
+## this has to be done in the including Makefile.am -before-
+## Makefile.swig is included.
+
+noaa_swig_pythondir_category ?= gnuradio/noaa_swig
+noaa_swig_pylibdir_category ?= $(noaa_swig_pythondir_category)
+noaa_swig_pythondir = $(pythondir)/$(noaa_swig_pythondir_category)
+noaa_swig_pylibdir = $(pyexecdir)/$(noaa_swig_pylibdir_category)
+
+## SWIG headers are always installed into the same directory.
+
+noaa_swig_swigincludedir = $(swigincludedir)
+
+## This is a template file for a "generated" Makefile addition (in
+## this case, "Makefile.swig.gen").  By including the top-level
+## Makefile.swig, this file will be used to generate the SWIG
+## dependencies.  Assign the variable TOP_SWIG_FILES to be the list of
+## SWIG .i files to generated wrappings for; there can be more than 1
+## so long as the names are unique (no sorting is done on the
+## TOP_SWIG_FILES list). This file explicitly assumes that a SWIG .i
+## file will generate .cc, .py, and possibly .h files -- meaning that
+## all of these files will have the same base name (that provided for
+## the SWIG .i file).
+##
+## This code is setup to ensure parallel MAKE ("-j" or "-jN") does the
+## right thing.  For more info, see <
+## http://sources.redhat.com/automake/automake.html#Multiple-Outputs >
+
+## Stamps used to ensure parallel make does the right thing.  These
+## are removed by "make clean", but otherwise unused except during the
+## parallel built.  These will not be included in a tarball, because
+## the SWIG-generated files will be removed from the distribution.
+
+STAMPS += $(DEPDIR)/noaa_swig-generate-*
+
+## Other cleaned files: dependency files generated by SWIG or this Makefile
+
+MOSTLYCLEANFILES += $(DEPDIR)/*.S*
+
+## Add the .py and .cc files to the list of SWIG built sources.  The
+## .h file is sometimes built, but not always ... so that one has to
+## be added manually by the including Makefile.am .
+
+swig_built_sources += noaa_swig.py noaa_swig.cc
+
+## Various SWIG variables.  These can be overloaded in the including
+## Makefile.am by setting the variable value there, then including
+## Makefile.swig .
+
+noaa_swig_swiginclude_HEADERS =                \
+       noaa_swig.i                     \
+       $(noaa_swig_swiginclude_headers)
+
+noaa_swig_pylib_LTLIBRARIES =          \
+       _noaa_swig.la
+
+_noaa_swig_la_SOURCES =                        \
+       noaa_swig.cc                    \
+       $(noaa_swig_la_swig_sources)
+
+_noaa_swig_la_LIBADD =                 \
+       $(STD_SWIG_LA_LIB_ADD)          \
+       $(noaa_swig_la_swig_libadd)
+
+_noaa_swig_la_LDFLAGS =                        \
+       $(STD_SWIG_LA_LD_FLAGS)         \
+       $(noaa_swig_la_swig_ldflags)
+
+_noaa_swig_la_CXXFLAGS =                       \
+       $(STD_SWIG_CXX_FLAGS)           \
+       $(noaa_swig_la_swig_cxxflags)
+
+noaa_swig_python_PYTHON =                      \
+       noaa_swig.py                    \
+       $(noaa_swig_python)
+
+## Entry rule for running SWIG
+
+noaa_swig.h noaa_swig.py noaa_swig.cc: noaa_swig.i
+## This rule will get called only when MAKE decides that one of the
+## targets needs to be created or re-created, because:
+##
+## * The .i file is newer than any or all of the generated files;
+##
+## * Any or all of the .cc, .h, or .py files does not exist and is
+##   needed (in the case this file is not needed, the rule for it is
+##   ignored); or
+##
+## * Some SWIG-based dependecy of the .cc file isn't met and hence the
+##   .cc file needs be be regenerated.  Explanation: Because MAKE
+##   knows how to handle dependencies for .cc files (regardless of
+##   their name or extension), then the .cc file is used as a target
+##   instead of the .i file -- but with the dependencies of the .i
+##   file.  It is this last reason why the line:
+##
+##             if test -f $@; then :; else
+##
+##   cannot be used in this case: If a .i file dependecy is not met,
+##   then the .cc file needs to be rebuilt.  But if the stamp is newer
+##   than the .cc file, and the .cc file exists, then in the original
+##   version (with the 'test' above) the internal MAKE call will not
+##   be issued and hence the .cc file will not be rebuilt.
+##
+## Once execution gets to here, it should always proceed no matter the
+## state of a stamp (as discussed in link above).  The
+## $(DEPDIR)/noaa_swig-generate stuff is used to allow for parallel
+## builds to "do the right thing".  The stamp has no relationship with
+## either the target files or dependency file; it is used solely for
+## the protection of multiple builds during a given call to MAKE.
+##
+## Catch signals SIGHUP (1), SIGINT (2), SIGPIPE (13), and SIGTERM
+## (15).  At a caught signal, the quoted command will be issued before
+## exiting.  In this case, remove any stamp, whether temporary of not.
+## The trap is valid until the process exits; the process includes all
+## commands appended via "\"s.
+##
+       trap 'rm -rf $(DEPDIR)/noaa_swig-generate-*' 1 2 13 15; \
+##
+## Create a temporary directory, which acts as a lock.  The first
+## process to create the directory will succeed and issue the MAKE
+## command to do the actual work, while all subsequent processes will
+## fail -- leading them to wait for the first process to finish.
+##
+       if mkdir $(DEPDIR)/noaa_swig-generate-lock 2>/dev/null; then \
+##
+## This code is being executed by the first process to succeed in
+## creating the directory lock.
+##
+## Remove the stamp associated with this filename.
+##
+               rm -f $(DEPDIR)/noaa_swig-generate-stamp; \
+##
+## Tell MAKE to run the rule for creating this stamp.
+##
+               $(MAKE) $(AM_MAKEFLAGS) $(DEPDIR)/noaa_swig-generate-stamp WHAT=$<; \
+##
+## Now that the .cc, .h, and .py files have been (re)created from the
+## .i file, future checking of this rule during the same MAKE
+## execution will come back that the rule doesn't need to be executed
+## because none of the conditions mentioned at the start of this rule
+## will be positive.  Remove the the directory lock, which frees up
+## any waiting process(es) to continue.
+##
+               rmdir $(DEPDIR)/noaa_swig-generate-lock; \
+       else \
+##
+## This code is being executed by any follower processes while the
+## directory lock is in place.
+##
+## Wait until the first process is done, testing once per second.
+##
+               while test -d $(DEPDIR)/noaa_swig-generate-lock; do \
+                       sleep 1; \
+               done; \
+##
+## Succeed if and only if the first process succeeded; exit this
+## process returning the status of the generated stamp.
+##
+               test -f $(DEPDIR)/noaa_swig-generate-stamp; \
+               exit $$?; \
+       fi;
+
+$(DEPDIR)/noaa_swig-generate-stamp:
+## This rule will be called only by the first process issuing the
+## above rule to succeed in creating the lock directory, after
+## removing the actual stamp file in order to guarantee that MAKE will
+## execute this rule.
+##
+## Call SWIG to generate the various output files; special
+## post-processing on 'mingw32' host OS for the dependency file.
+##
+       if $(SWIG) $(STD_SWIG_PYTHON_ARGS) $(noaa_swig_swig_args) \
+               -MD -MF $(DEPDIR)/noaa_swig.Std \
+               -module noaa_swig -o noaa_swig.cc $(WHAT); then \
+           if test $(host_os) = mingw32; then \
+               $(RM) $(DEPDIR)/noaa_swig.Sd; \
+               $(SED) 's,\\\\,/,g' < $(DEPDIR)/noaa_swig.Std \
+                       > $(DEPDIR)/noaa_swig.Sd; \
+               $(RM) $(DEPDIR)/noaa_swig.Std; \
+               $(MV) $(DEPDIR)/noaa_swig.Sd $(DEPDIR)/noaa_swig.Std; \
+           fi; \
+       else \
+           $(RM) $(DEPDIR)/noaa_swig.S*; exit 1; \
+       fi;
+##
+## Mess with the SWIG output .Std dependency file, to create a
+## dependecy file valid for the input .i file: Basically, simulate the
+## dependency file created for libraries by GNU's libtool for C++,
+## where all of the dependencies for the target are first listed, then
+## each individual dependency is listed as a target with no further
+## dependencies.
+##
+## (1) remove the current dependency file
+##
+       $(RM) $(DEPDIR)/noaa_swig.d
+##
+## (2) Copy the whole SWIG file:
+##
+       cp $(DEPDIR)/noaa_swig.Std $(DEPDIR)/noaa_swig.d
+##
+## (3) all a carriage return to the end of the dependency file.
+##
+       echo "" >> $(DEPDIR)/noaa_swig.d
+##
+## (4) from the SWIG file, remove the first line (the target); remove
+##     trailing " \" and " " from each line.  Append ":" to each line,
+##     followed by 2 carriage returns, then append this to the end of
+##     the dependency file.
+##
+       $(SED) -e '1d;s, \\,,g;s, ,,g' < $(DEPDIR)/noaa_swig.Std | \
+               awk '{ printf "%s:\n\n", $$0 }' >> $(DEPDIR)/noaa_swig.d
+##
+## (5) remove the SWIG-generated file
+##
+       $(RM) $(DEPDIR)/noaa_swig.Std
+##
+## Create the stamp for this filename generation, to signal success in
+## executing this rule; allows other threads waiting on this process
+## to continue.
+##
+       touch $(DEPDIR)/noaa_swig-generate-stamp
+
+# KLUDGE: Force runtime include of a SWIG dependency file.  This is
+# not guaranteed to be portable, but will probably work.  If it works,
+# we have accurate dependencies for our swig stuff, which is good.
+
+@am__include@ @am__quote@./$(DEPDIR)/noaa_swig.d@am__quote@
+

diff --git a/gr-noaa/swig/__init__.py b/gr-noaa/swig/__init__.py
new file mode 100644 (file)
index 0000000..d8d337e
--- /dev/null
+++ b/gr-noaa/swig/__init__.py
@@ -0,0 +1,28 @@
+#
+# Copyright 2009 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.
+# 
+
+# The presence of this file turns this directory into a Python package
+
+# Add SWIG generated code to this namespace
+from noaa_swig import *
+
+# Add other content from pure-Python modules here
+

diff --git a/gr-noaa/swig/noaa_hrpt_decoder.i b/gr-noaa/swig/noaa_hrpt_decoder.i
new file mode 100644 (file)
index 0000000..ddf181c
--- /dev/null
+++ b/gr-noaa/swig/noaa_hrpt_decoder.i
@@ -0,0 +1,32 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2009 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.
+ */
+
+GR_SWIG_BLOCK_MAGIC(noaa,hrpt_decoder)
+
+noaa_hrpt_decoder_sptr
+noaa_make_hrpt_decoder();
+
+class noaa_hrpt_decoder : public gr_sync_block
+{
+private:
+  noaa_hrpt_decoder();
+};

diff --git a/gr-noaa/swig/noaa_hrpt_deframer.i b/gr-noaa/swig/noaa_hrpt_deframer.i
new file mode 100644 (file)
index 0000000..6914b93
--- /dev/null
+++ b/gr-noaa/swig/noaa_hrpt_deframer.i
@@ -0,0 +1,32 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2009 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.
+ */
+
+GR_SWIG_BLOCK_MAGIC(noaa,hrpt_deframer)
+
+noaa_hrpt_deframer_sptr
+noaa_make_hrpt_deframer();
+
+class noaa_hrpt_deframer : public gr_block
+{
+private:
+  noaa_hrpt_deframer();
+};

diff --git a/gr-noaa/swig/noaa_hrpt_pll_cf.i b/gr-noaa/swig/noaa_hrpt_pll_cf.i
new file mode 100644 (file)
index 0000000..859548a
--- /dev/null
+++ b/gr-noaa/swig/noaa_hrpt_pll_cf.i
@@ -0,0 +1,37 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2009 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.
+ */
+
+GR_SWIG_BLOCK_MAGIC(noaa,hrpt_pll_cf)
+
+noaa_hrpt_pll_cf_sptr
+noaa_make_hrpt_pll_cf(float alpha, float beta, float max_offset);
+
+class noaa_hrpt_pll_cf : public gr_sync_block
+{
+private:
+  noaa_hrpt_pll_cf();
+
+public:
+  void set_alpha(float alpha);
+  void set_beta(float beta);
+  void set_max_offset(float min_freq);
+};

diff --git a/gr-noaa/swig/noaa_hrpt_sync_fb.i b/gr-noaa/swig/noaa_hrpt_sync_fb.i
new file mode 100644 (file)
index 0000000..a8e5b21
--- /dev/null
+++ b/gr-noaa/swig/noaa_hrpt_sync_fb.i
@@ -0,0 +1,37 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2009 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.
+ */
+
+GR_SWIG_BLOCK_MAGIC(noaa,hrpt_sync_fb)
+
+noaa_hrpt_sync_fb_sptr
+noaa_make_hrpt_sync_fb(float alpha, float beta, float sps, float max_offset);
+
+class noaa_hrpt_sync_fb : public gr_sync_block
+{
+private:
+  noaa_hrpt_sync_fb();
+
+public:
+  void set_alpha(float alpha);
+  void set_beta(float beta);
+  void set_max_offset(float min_freq);
+};

diff --git a/gr-noaa/swig/noaa_swig.i b/gr-noaa/swig/noaa_swig.i
new file mode 100644 (file)
index 0000000..e6497bc
--- /dev/null
+++ b/gr-noaa/swig/noaa_swig.i
@@ -0,0 +1,35 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2009 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 "gnuradio.i"
+
+%{
+#include <noaa_hrpt_decoder.h>
+#include <noaa_hrpt_deframer.h>
+#include <noaa_hrpt_pll_cf.h>
+#include <noaa_hrpt_sync_fb.h>
+%}
+
+%include "noaa_hrpt_decoder.i"
+%include "noaa_hrpt_deframer.i"
+%include "noaa_hrpt_pll_cf.i"
+%include "noaa_hrpt_sync_fb.i"