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Diffstat (limited to 'gnuradio-examples/python/digital/benchmark_qt_rx.py')
| -rwxr-xr-x | gnuradio-examples/python/digital/benchmark_qt_rx.py | 443 |
1 files changed, 0 insertions, 443 deletions
diff --git a/gnuradio-examples/python/digital/benchmark_qt_rx.py b/gnuradio-examples/python/digital/benchmark_qt_rx.py deleted file mode 100755 index 0cbb68d23..000000000 --- a/gnuradio-examples/python/digital/benchmark_qt_rx.py +++ /dev/null @@ -1,443 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2005,2006,2007,2009 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. -# - -from gnuradio import gr, gru, modulation_utils -from gnuradio import usrp -from gnuradio import eng_notation -from gnuradio.eng_option import eng_option -from optparse import OptionParser -from gnuradio import usrp_options - -import random -import struct -import sys - -# from current dir -from receive_path import receive_path -from pick_bitrate import pick_rx_bitrate - -try: - from gnuradio.qtgui import qtgui - from PyQt4 import QtGui, QtCore - import sip -except ImportError: - print "Please install gr-qtgui." - sys.exit(1) - -try: - from qt_rx_window import Ui_DigitalWindow -except ImportError: - print "Error: could not find qt_rx_window.py:" - print "\tYou must first build this from qt_rx_window.ui with the following command:" - print "\t\"pyuic4 qt_rx_window.ui -o qt_rx_window.py\"" - sys.exit(1) - -#import os -#print os.getpid() -#raw_input('Attach and press enter: ') - -# //////////////////////////////////////////////////////////////////// -# Define the QT Interface and Control Dialog -# //////////////////////////////////////////////////////////////////// - - -class dialog_box(QtGui.QMainWindow): - def __init__(self, snkRxIn, snkRx, fg, parent=None): - - QtGui.QWidget.__init__(self, parent) - self.gui = Ui_DigitalWindow() - self.gui.setupUi(self) - - self.fg = fg - - self.set_frequency(self.fg.frequency()) - self.set_gain(self.fg.gain()) - self.set_decim(self.fg.decim()) - self.set_gain_mu(self.fg.rx_gain_mu()) - self.set_alpha(self.fg.rx_alpha()) - - # Add the qtsnk widgets to the hlayout box - self.gui.sinkLayout.addWidget(snkRxIn) - self.gui.sinkLayout.addWidget(snkRx) - - - # Connect up some signals - self.connect(self.gui.freqEdit, QtCore.SIGNAL("editingFinished()"), - self.freqEditText) - self.connect(self.gui.gainEdit, QtCore.SIGNAL("editingFinished()"), - self.gainEditText) - self.connect(self.gui.decimEdit, QtCore.SIGNAL("editingFinished()"), - self.decimEditText) - self.connect(self.gui.gainMuEdit, QtCore.SIGNAL("editingFinished()"), - self.gainMuEditText) - self.connect(self.gui.alphaEdit, QtCore.SIGNAL("editingFinished()"), - self.alphaEditText) - - # Build a timer to update the packet number and PER fields - self.update_delay = 250 # time between updating packet rate fields - self.pkt_timer = QtCore.QTimer(self) - self.connect(self.pkt_timer, QtCore.SIGNAL("timeout()"), - self.updatePacketInfo) - self.pkt_timer.start(self.update_delay) - - - # Accessor functions for Gui to manipulate receiver parameters - def set_frequency(self, fo): - self.gui.freqEdit.setText(QtCore.QString("%1").arg(fo)) - - def set_gain(self, gain): - self.gui.gainEdit.setText(QtCore.QString("%1").arg(gain)) - - def set_decim(self, decim): - self.gui.decimEdit.setText(QtCore.QString("%1").arg(decim)) - - def set_gain_mu(self, gain): - self.gui.gainMuEdit.setText(QtCore.QString("%1").arg(gain)) - - def set_alpha(self, alpha): - self.gui.alphaEdit.setText(QtCore.QString("%1").arg(alpha)) - - def freqEditText(self): - try: - freq = self.gui.freqEdit.text().toDouble()[0] - self.fg.set_freq(freq) - except RuntimeError: - pass - - def gainEditText(self): - try: - gain = self.gui.gainEdit.text().toDouble()[0] - self.fg.set_gain(gain) - except RuntimeError: - pass - - def decimEditText(self): - try: - decim = self.gui.decimEdit.text().toInt()[0] - self.fg.set_decim(decim) - except RuntimeError: - pass - - def alphaEditText(self): - try: - alpha = self.gui.alphaEdit.text().toDouble()[0] - self.fg.set_rx_alpha(alpha) - except RuntimeError: - pass - - def gainMuEditText(self): - try: - gain = self.gui.gainMuEdit.text().toDouble()[0] - self.fg.set_rx_gain_mu(gain) - except RuntimeError: - pass - - - # Accessor function for packet error reporting - def updatePacketInfo(self): - # Pull these globals in from the main thread - global n_rcvd, n_right, pktno - - per = float(n_rcvd - n_right)/float(pktno) - self.gui.pktsRcvdEdit.setText(QtCore.QString("%1").arg(n_rcvd)) - self.gui.pktsCorrectEdit.setText(QtCore.QString("%1").arg(n_right)) - self.gui.perEdit.setText(QtCore.QString("%1").arg(per)) - - - -# //////////////////////////////////////////////////////////////////// -# Define the GNU Radio Top Block -# //////////////////////////////////////////////////////////////////// - - -class my_top_block(gr.top_block): - def __init__(self, demodulator, rx_callback, options): - gr.top_block.__init__(self) - - self._rx_freq = options.rx_freq # receiver's center frequency - self._rx_gain = options.rx_gain # receiver's gain - self._rx_subdev_spec = options.rx_subdev_spec # daughterboard to use - self._decim = options.decim # Decimating rate for the USRP (prelim) - self._bitrate = options.bitrate - self._samples_per_symbol = options.samples_per_symbol - self._demod_class = demodulator - self.gui_on = options.gui - - if self._rx_freq is None: - sys.stderr.write("-f FREQ or --freq FREQ or --rx-freq FREQ must be specified\n") - raise SystemExit - - # Set up USRP source - self._setup_usrp_source(options) - - # copy the final answers back into options for use by demodulator - options.samples_per_symbol = self._samples_per_symbol - options.bitrate = self._bitrate - options.decim = self._decim - - ok = self.set_freq(self._rx_freq) - if not ok: - print "Failed to set Rx frequency to %s" % (eng_notation.num_to_str(self._rx_freq)) - raise ValueError, eng_notation.num_to_str(self._rx_freq) - - self.set_gain(options.rx_gain) - - # Set up receive path - self.rxpath = receive_path(demodulator, rx_callback, options) - - # FIXME: do better exposure to lower issues for control - self._gain_mu = self.rxpath.packet_receiver._demodulator._mm_gain_mu - self._alpha = self.rxpath.packet_receiver._demodulator._costas_alpha - - self.connect(self.u, self.rxpath) - - if self.gui_on: - self.qapp = QtGui.QApplication(sys.argv) - fftsize = 2048 - - bw_in = self.u.adc_rate() / self.decim() - self.snk_rxin = qtgui.sink_c(fftsize, gr.firdes.WIN_BLACKMAN_hARRIS, - self._rx_freq, bw_in, - "Received", True, True, False, True, True, False) - self.snk_rx = qtgui.sink_c(fftsize, gr.firdes.WIN_BLACKMAN_hARRIS, - 0, self._bitrate, - "Post-Synchronizer", True, True, False, True, True, False) - - self.snk_rxin.set_frequency_axis(-60, 60) - self.snk_rx.set_frequency_axis(-60, 20) - self.snk_rxin.set_time_domain_axis(-2000,2000) - - # Connect to the QT sinks - # FIXME: make better exposure to receiver from rxpath - self.receiver = self.rxpath.packet_receiver._demodulator.receiver - self.connect(self.u, self.snk_rxin) - self.connect(self.receiver, self.snk_rx) - - pyRxInQt = self.snk_rxin.pyqwidget() - pyRxIn = sip.wrapinstance(pyRxInQt, QtGui.QWidget) - - pyRxQt = self.snk_rx.pyqwidget() - pyRx = sip.wrapinstance(pyRxQt, QtGui.QWidget) - - self.main_box = dialog_box(pyRxIn, pyRx, self) - self.main_box.show() - - def _setup_usrp_source(self, options): - self.u = usrp_options.create_usrp_source(options) - adc_rate = self.u.adc_rate() - - self.u.set_decim(self._decim) - - (self._bitrate, self._samples_per_symbol, self._decim) = \ - pick_rx_bitrate(self._bitrate, self._demod_class.bits_per_symbol(), \ - self._samples_per_symbol, self._decim, adc_rate, \ - self.u.get_decim_rates()) - - self.u.set_decim(self._decim) - self.set_auto_tr(True) # enable Auto Transmit/Receive switching - - def set_freq(self, target_freq): - """ - Set the center frequency we're interested in. - - @param target_freq: frequency in Hz - @rypte: bool - - Tuning is a two step process. First we ask the front-end to - tune as close to the desired frequency as it can. Then we use - the result of that operation and our target_frequency to - determine the value for the digital up converter. - """ - return self.u.set_center_freq(target_freq) - - def set_gain(self, gain): - """ - Sets the analog gain in the USRP - """ - if gain is None: - r = self.u.gain_range() - gain = (r[0] + r[1])/2 # set gain to midpoint - self._rx_gain = gain - return self.u.set_gain(self._rx_gain) - - def set_auto_tr(self, enable): - return self.u.set_auto_tr(enable) - - def set_decim(self, decim): - self._decim = decim - self.u.set_decim(self._decim) - - if(self.gui_on): - bw_in = self.u.adc_rate() / self._decim - self._bitrate = bw_in / self._samples_per_symbol - self.snk_rxin.set_frequency_range(0, -bw_in/2.0, bw_in/2.0) - self.snk_rx.set_frequency_range(0, -self._bitrate/2.0, self._bitrate/2.0) - - def frequency(self): - return self._rx_freq - - def gain(self): - return self._rx_gain - - def decim(self): - return self._decim - - def rx_gain_mu(self): - return self._gain_mu - - def rx_gain_omega(self): - return self.gain_omega - - def set_rx_gain_mu(self, gain): - self._gain_mu = gain - self.gain_omega = .25 * self._gain_mu * self._gain_mu - self.receiver.set_gain_mu(self._gain_mu) - self.receiver.set_gain_omega(self.gain_omega) - - def rx_alpha(self): - return self._alpha - - def rx_beta(self): - return self.beta - - def set_rx_alpha(self, alpha): - self._alpha = alpha - self.beta = .25 * self._alpha * self._alpha - self.receiver.set_alpha(self._alpha) - self.receiver.set_beta(self.beta) - - def add_options(normal, expert): - """ - Adds usrp-specific options to the Options Parser - """ - add_freq_option(normal) - normal.add_option("-R", "--rx-subdev-spec", type="subdev", default=None, - help="select USRP Rx side A or B") - normal.add_option("", "--rx-gain", type="eng_float", default=None, metavar="GAIN", - help="set receiver gain in dB [default=midpoint]. See also --show-rx-gain-range") - normal.add_option("", "--show-rx-gain-range", action="store_true", default=False, - help="print min and max Rx gain available on selected daughterboard") - normal.add_option("-v", "--verbose", action="store_true", default=False) - normal.add_option("-G", "--gui", action="store_true", default=False, - help="Turn on the GUI [default=%default]") - - expert.add_option("", "--rx-freq", type="eng_float", default=None, - help="set Rx frequency to FREQ [default=%default]", metavar="FREQ") - expert.add_option("-d", "--decim", type="intx", default=128, - help="set fpga decimation rate to DECIM [default=%default]") - expert.add_option("", "--snr", type="eng_float", default=30, - help="set the SNR of the channel in dB [default=%default]") - - - # Make a static method to call before instantiation - add_options = staticmethod(add_options) - - -def add_freq_option(parser): - """ - Hackery that has the -f / --freq option set both tx_freq and rx_freq - """ - def freq_callback(option, opt_str, value, parser): - parser.values.rx_freq = value - parser.values.tx_freq = value - - if not parser.has_option('--freq'): - parser.add_option('-f', '--freq', type="eng_float", - action="callback", callback=freq_callback, - help="set Tx and/or Rx frequency to FREQ [default=%default]", - metavar="FREQ") - - -# ///////////////////////////////////////////////////////////////////////////// -# main -# ///////////////////////////////////////////////////////////////////////////// - -global n_rcvd, n_right - -def main(): - global n_rcvd, n_right, pktno - - n_rcvd = 0 - n_right = 0 - pktno = 1 - - def rx_callback(ok, payload): - global n_rcvd, n_right, pktno - (pktno,) = struct.unpack('!H', payload[0:2]) - n_rcvd += 1 - if ok: - n_right += 1 - - if not options.gui: - print "ok = %5s pktno = %4d n_rcvd = %4d n_right = %4d" % ( - ok, pktno, n_rcvd, n_right) - - - demods = modulation_utils.type_1_demods() - - # Create Options Parser: - parser = OptionParser (option_class=eng_option, conflict_handler="resolve") - expert_grp = parser.add_option_group("Expert") - - parser.add_option("-m", "--modulation", type="choice", choices=demods.keys(), - default='dbpsk', - help="Select modulation from: %s [default=%%default]" - % (', '.join(demods.keys()),)) - - my_top_block.add_options(parser, expert_grp) - receive_path.add_options(parser, expert_grp) - usrp_options.add_rx_options(parser) - - for mod in demods.values(): - mod.add_options(expert_grp) - - (options, args) = parser.parse_args () - - if len(args) != 0: - parser.print_help(sys.stderr) - sys.exit(1) - - if options.rx_freq is None: - sys.stderr.write("You must specify -f FREQ or --freq FREQ\n") - parser.print_help(sys.stderr) - sys.exit(1) - - - # build the graph - tb = my_top_block(demods[options.modulation], rx_callback, options) - - r = gr.enable_realtime_scheduling() - if r != gr.RT_OK: - print "Warning: Failed to enable realtime scheduling." - - tb.start() # start flow graph - - if(options.gui): - tb.qapp.exec_() - else: - tb.wait() # wait for it to finish - -if __name__ == '__main__': - try: - main() - except KeyboardInterrupt: - pass |