3 # Copyright 2007 Free Software Foundation, Inc.
5 # This file is part of GNU Radio
7 # GNU Radio is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 3, or (at your option)
12 # GNU Radio is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with GNU Radio; see the file COPYING. If not, write to
19 # the Free Software Foundation, Inc., 51 Franklin Street,
20 # Boston, MA 02110-1301, USA.
23 from gnuradio import gr
24 from gnuradio.radar_mono import radar
25 from gnuradio import eng_notation
26 from gnuradio.eng_option import eng_option
27 from optparse import OptionParser
30 n2s = eng_notation.num_to_str
33 def process_echo(echo):
35 if logfile is not None:
40 parser = OptionParser(option_class=eng_option)
41 parser.add_option("-T", "--tx-subdev-spec", type="subdev", default=None,
42 help="use transmitter board side A or B (default is first found)")
43 parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=None,
44 help="use receiver board side A or B (default is first found)")
45 parser.add_option("-g", "--gain", type="eng_float", default=None,
46 help="set gain in dB (default is midpoint)")
47 parser.add_option("-f", "--frequency", type="eng_float", default=0.0,
48 help="set transmitter center frequency to FREQ in Hz, default is %default", metavar="FREQ")
49 parser.add_option("-w", "--chirp-width", type="eng_float", default=32e6,
50 help="set LFM chirp bandwidth in Hz, default is %default", metavar="FREQ")
51 parser.add_option("-a", "--amplitude", type="eng_float", default=15,
52 help="set waveform amplitude in % full scale, default is %default,")
53 parser.add_option("", "--ton", type="eng_float", default=5e-6,
54 help="set pulse on period in seconds, default is %default,")
55 parser.add_option("", "--tsw", type="eng_float", default=0.0,
56 help="set transmitter switching period in seconds, default is %default,")
57 parser.add_option("", "--tlook", type="eng_float", default=5e-6,
58 help="set receiver look time in seconds, default is %default,")
59 parser.add_option("", "--prf", type="eng_float", default=100,
60 help="set pulse repetition frequency in Hz, default is %default,")
61 parser.add_option("-v", "--verbose", action="store_true", default=False,
62 help="enable verbose output, default is disabled")
63 parser.add_option("-D", "--debug", action="store_true", default=False,
64 help="enable debugging output, default is disabled")
65 parser.add_option("-F", "--filename", default=None,
66 help="log received echos to file")
68 (options, args) = parser.parse_args()
74 if options.filename is not None:
76 print "Logging echo records to file: ", options.filename
77 logfile = open(options.filename, 'wb')
79 r = radar(options, process_echo)
81 r.set_ton(options.ton)
82 r.set_tsw(options.tsw)
83 r.set_tlook(options.tlook)
84 r.set_prf(options.prf)
85 r.set_amplitude(options.amplitude)
86 r.set_freq(options.frequency, options.chirp_width)
89 raw_input("Press ENTER to stop.")
92 if logfile is not None:
95 if __name__ == "__main__":