diff options
Diffstat (limited to 'gnuradio-examples/python/digital/benchmark_qt_loopback2.py')
| -rwxr-xr-x | gnuradio-examples/python/digital/benchmark_qt_loopback2.py | 37 |
1 files changed, 32 insertions, 5 deletions
diff --git a/gnuradio-examples/python/digital/benchmark_qt_loopback2.py b/gnuradio-examples/python/digital/benchmark_qt_loopback2.py index 1cb95198e..56c6c7f52 100755 --- a/gnuradio-examples/python/digital/benchmark_qt_loopback2.py +++ b/gnuradio-examples/python/digital/benchmark_qt_loopback2.py @@ -1,6 +1,26 @@ #!/usr/bin/env python - -from gnuradio import gr, gru, modulation_utils +# +# Copyright 2010 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gru, modulation_utils2 from gnuradio import eng_notation from gnuradio.eng_option import eng_option from optparse import OptionParser @@ -223,6 +243,11 @@ class my_top_block(gr.top_block): self._noise_voltage = self.get_noise_voltage(self._snr_dB) + # With new interface, sps does not get set by default, but + # in the loopback, we don't recalculate it; so just force it here + if(options.samples_per_symbol == None): + options.samples_per_symbol = 2 + self.txpath = transmit_path(mod_class, options) self.throttle = gr.throttle(gr.sizeof_gr_complex, self.sample_rate()) self.rxpath = receive_path(demod_class, rx_callback, options) @@ -269,6 +294,7 @@ class my_top_block(gr.top_block): self.phase_recov = self.rxpath.packet_receiver._demodulator.phase_recov self.time_recov = self.rxpath.packet_receiver._demodulator.time_recov self.freq_recov.set_alpha(self._gain_freq) + self.freq_recov.set_beta(self._gain_freq/10.0) self.phase_recov.set_alpha(self._gain_phase) self.phase_recov.set_beta(0.25*self._gain_phase*self._gain_phase) self.time_recov.set_alpha(self._gain_clock) @@ -367,6 +393,7 @@ class my_top_block(gr.top_block): self._gain_freq = gain_freq #self._gain_freq_beta = .25 * self._gain_freq * self._gain_freq self.rxpath.packet_receiver._demodulator.freq_recov.set_alpha(self._gain_freq) + self.rxpath.packet_receiver._demodulator.freq_recov.set_beta(self._gain_freq/10.0) #self.rxpath.packet_receiver._demodulator.freq_recov.set_beta(self._gain_fre_beta) @@ -431,15 +458,15 @@ def main(): def send_pkt(payload='', eof=False): return tb.txpath.send_pkt(payload, eof) - mods = modulation_utils.type_1_mods() - demods = modulation_utils.type_1_demods() + mods = modulation_utils2.type_1_mods() + demods = modulation_utils2.type_1_demods() parser = OptionParser(option_class=eng_option, conflict_handler="resolve") expert_grp = parser.add_option_group("Expert") channel_grp = parser.add_option_group("Channel") parser.add_option("-m", "--modulation", type="choice", choices=mods.keys(), - default='dbpsk', + default='dbpsk2', help="Select modulation from: %s [default=%%default]" % (', '.join(mods.keys()),)) |