diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2011-10-06 20:02:56 -0400 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2011-10-06 20:02:56 -0400 |
| commit | ee09a80f9962e9c69101b714442104ae0e329459 (patch) | |
| tree | 395a7e8e6d0a38ddcf417201646abe29ced2e565 /gnuradio-examples/python/digital-bert/benchmark_rx.py | |
| parent | 255b44a62b72bb8c20d2f4bf36f3e462e5863a4a (diff) | |
digital: removed old digital and digital-bert scripts that will no longer work. All of these have been replaced in gr-digital/examples.
Diffstat (limited to 'gnuradio-examples/python/digital-bert/benchmark_rx.py')
| -rwxr-xr-x | gnuradio-examples/python/digital-bert/benchmark_rx.py | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/gnuradio-examples/python/digital-bert/benchmark_rx.py b/gnuradio-examples/python/digital-bert/benchmark_rx.py deleted file mode 100755 index 1e00dbd762..0000000000 --- a/gnuradio-examples/python/digital-bert/benchmark_rx.py +++ /dev/null @@ -1,170 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2008 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 3, or (at your option) -# any later version. -# -# GNU Radio is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with GNU Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -from gnuradio import gr, eng_notation, usrp -from optparse import OptionParser -from gnuradio.eng_option import eng_option -from receive_path import receive_path -import gnuradio.gr.gr_threading as _threading -import sys, time - -n2s = eng_notation.num_to_str - -class status_thread(_threading.Thread): - def __init__(self, tb): - _threading.Thread.__init__(self) - self.setDaemon(1) - self.tb = tb - self.done = False - self.start() - - def run(self): - while not self.done: - print "Freq. Offset: %5.0f Hz Timing Offset: %5.1f ppm Estimated SNR: %4.1f dB BER: %g" % ( - tb.frequency_offset(), tb.timing_offset()*1e6, tb.snr(), tb.ber()) - try: - time.sleep(1.0) - except KeyboardInterrupt: - self.done = True - -class rx_bpsk_block(gr.top_block): - def __init__(self, options): - - gr.top_block.__init__(self, "rx_mpsk") - - print "USRP decimation rate", options.decim_rate - - # Create a USRP source at desired board, sample rate, frequency, and gain - self._setup_usrp(options.which, - options.decim_rate, - options.rx_subdev_spec, - options.freq, - options.gain) - - # Create the BERT receiver - if_rate = self._usrp.adc_rate()/options.decim_rate - self._receiver = receive_path(if_rate, - options.rate, - options.excess_bw, - options.costas_alpha, - options.costas_beta, - options.costas_max, - options.mm_gain_mu, - options.mm_gain_omega, - options.mm_omega_limit) - - self.connect(self._usrp, self._receiver) - - - def _setup_usrp(self, which, decim, subdev_spec, freq, gain): - self._usrp = usrp.source_c(which=which, decim_rate=decim) - if subdev_spec is None: - subdev_spec = usrp.pick_rx_subdevice(self._usrp) - self._subdev = usrp.selected_subdev(self._usrp, subdev_spec) - mux = usrp.determine_rx_mux_value(self._usrp, subdev_spec) - self._usrp.set_mux(mux) - tr = self._usrp.tune(0, self._subdev, freq) - if not (tr): - print "Failed to tune to center frequency!" - else: - print "Center frequency:", n2s(freq) - if gain is None: - g = self._subdev.gain_range(); - gain = float(g[0]+g[1])/2.0 - self._subdev.set_gain(gain) - print "RX d'board:", self._subdev.side_and_name() - - def snr(self): - return self._receiver.snr() - - def mag(self): - return self._receiver.signal_mean() - - def var(self): - return self._receiver.noise_variance() - - def ber(self): - return self._receiver.ber() - - def frequency_offset(self): - return self._receiver.frequency_offset() - - def timing_offset(self): - return self._receiver.timing_offset() - -def get_options(): - parser = OptionParser(option_class=eng_option) - parser.add_option("-w", "--which", type="int", default=0, - help="select which USRP (0, 1, ...) (default is %default)", - metavar="NUM") - parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=None, - help="select USRP Rx side A or B (default=first one with a daughterboard)") - parser.add_option("-f", "--freq", type="eng_float", default=None, - help="set frequency to FREQ", metavar="FREQ") - parser.add_option("-g", "--gain", type="eng_float", default=None, - help="set Rx gain (default is mid-point)") - parser.add_option("-r", "--rate", type="eng_float", default=250e3, - help="Select modulation symbol rate (default=%default)") - parser.add_option("-d", "--decim-rate", type="int", default=8, - help="Select USRP decimation rate (default=%default)") - parser.add_option("", "--excess-bw", type="eng_float", default=0.35, - help="Select RRC excess bandwidth (default=%default)") - parser.add_option("", "--costas-alpha", type="eng_float", default=0.05, - help="set Costas loop 1st order gain, (default=%default)") - parser.add_option("", "--costas-beta", type="eng_float", default=0.00025, - help="set Costas loop 2nd order gain, (default=%default)") - parser.add_option("", "--costas-max", type="eng_float", default=0.05, - help="set Costas loop max freq (rad/sample) (default=%default)") - parser.add_option("", "--mm-gain-mu", type="eng_float", default=0.001, - help="set M&M loop 1st order gain, (default=%default)") - parser.add_option("", "--mm-gain-omega", type="eng_float", default=0.000001, - help="set M&M loop 2nd order gain, (default=%default)") - parser.add_option("", "--mm-omega-limit", type="eng_float", default=0.0001, - help="set M&M max timing error, (default=%default)") - - - (options, args) = parser.parse_args() - if len(args) != 0: - parser.print_help() - sys.exit(1) - - if options.freq == None: - print "You must supply a frequency with -f or --freq" - sys.exit(1) - - return (options, args) - - -if __name__ == "__main__": - (options, args) = get_options() - - tb = rx_bpsk_block(options) - - print "\n*** SNR estimator is inaccurate below about 7dB" - print "*** BER estimator is inaccurate above about 10%\n" - updater = status_thread(tb) - - try: - tb.run() - except KeyboardInterrupt: - updater.done = True - updater = None |