diff options
Diffstat (limited to 'gnuradio-examples/python')
| -rw-r--r-- | gnuradio-examples/python/digital/Makefile.am | 2 | ||||
| -rwxr-xr-x | gnuradio-examples/python/digital/benchmark_qt_loopback.py | 464 | ||||
| -rwxr-xr-x | gnuradio-examples/python/digital/benchmark_qt_rx.py | 430 | ||||
| -rw-r--r-- | gnuradio-examples/python/digital/qt_digital_window.ui | 395 | ||||
| -rw-r--r-- | gnuradio-examples/python/digital/qt_rx_window.ui | 329 |
5 files changed, 1620 insertions, 0 deletions
diff --git a/gnuradio-examples/python/digital/Makefile.am b/gnuradio-examples/python/digital/Makefile.am index f89ce1a94..04457c6fc 100644 --- a/gnuradio-examples/python/digital/Makefile.am +++ b/gnuradio-examples/python/digital/Makefile.am @@ -35,6 +35,8 @@ dist_ourdata_SCRIPTS = \ benchmark_loopback.py \ benchmark_rx.py \ benchmark_tx.py \ + benchmark_qt_rx.py \ + benchmark_qt_loopback.py\ gen_whitener.py \ rx_voice.py \ run_length.py \ diff --git a/gnuradio-examples/python/digital/benchmark_qt_loopback.py b/gnuradio-examples/python/digital/benchmark_qt_loopback.py new file mode 100755 index 000000000..0936b42bb --- /dev/null +++ b/gnuradio-examples/python/digital/benchmark_qt_loopback.py @@ -0,0 +1,464 @@ +#!/usr/bin/env python + +from gnuradio import gr, gru, modulation_utils +from gnuradio import eng_notation +from gnuradio.eng_option import eng_option +from optparse import OptionParser +import random, time, struct, sys, os, math + +from threading import Thread + +# from current dir +from transmit_path import transmit_path +from receive_path import receive_path + +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_digital_window import Ui_DigitalWindow +except ImportError: + print "Error: could not find qt_digital_window.py:" + print "\t\"pyuic4 qt_digital_window.ui -o qt_digital_window.py\"" + sys.exit(1) + + +#print os.getpid() +#raw_input() + + +# //////////////////////////////////////////////////////////////////// +# Define the QT Interface and Control Dialog +# //////////////////////////////////////////////////////////////////// + + +class dialog_box(QtGui.QMainWindow): + def __init__(self, snkTx, snkRx, fg, parent=None): + + QtGui.QWidget.__init__(self, parent) + self.gui = Ui_DigitalWindow() + self.gui.setupUi(self) + + self.fg = fg + + self.set_sample_rate(self.fg.sample_rate()) + + self.set_snr(self.fg.snr()) + self.set_frequency(self.fg.frequency_offset()) + self.set_time_offset(self.fg.timing_offset()) + + 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(snkTx) + self.gui.sinkLayout.addWidget(snkRx) + + + # Connect up some signals + self.connect(self.gui.pauseButton, QtCore.SIGNAL("clicked()"), + self.pauseFg) + + self.connect(self.gui.sampleRateEdit, QtCore.SIGNAL("editingFinished()"), + self.sampleRateEditText) + + self.connect(self.gui.snrEdit, QtCore.SIGNAL("editingFinished()"), + self.snrEditText) + self.connect(self.gui.freqEdit, QtCore.SIGNAL("editingFinished()"), + self.freqEditText) + self.connect(self.gui.timeEdit, QtCore.SIGNAL("editingFinished()"), + self.timeEditText) + + 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) + + def pauseFg(self): + if(self.gui.pauseButton.text() == "Pause"): + self.fg.stop() + self.fg.wait() + self.gui.pauseButton.setText("Unpause") + else: + self.fg.start() + self.gui.pauseButton.setText("Pause") + + # Accessor functions for Gui to manipulate system parameters + def set_sample_rate(self, sr): + ssr = eng_notation.num_to_str(sr) + self.gui.sampleRateEdit.setText(QtCore.QString("%1").arg(ssr)) + + def sampleRateEditText(self): + try: + rate = self.gui.sampleRateEdit.text().toAscii() + srate = eng_notation.str_to_num(rate) + #self.fg.set_sample_rate(srate) + except RuntimeError: + pass + + + # Accessor functions for Gui to manipulate channel model + def set_snr(self, snr): + self.gui.snrEdit.setText(QtCore.QString("%1").arg(snr)) + + def set_frequency(self, fo): + self.gui.freqEdit.setText(QtCore.QString("%1").arg(fo)) + + def set_time_offset(self, to): + self.gui.timeEdit.setText(QtCore.QString("%1").arg(to)) + + def snrEditText(self): + try: + snr = self.gui.snrEdit.text().toDouble()[0] + self.fg.set_snr(snr) + except RuntimeError: + pass + + def freqEditText(self): + try: + freq = self.gui.freqEdit.text().toDouble()[0] + self.fg.set_frequency_offset(freq) + except RuntimeError: + pass + + def timeEditText(self): + try: + to = self.gui.timeEdit.text().toDouble()[0] + self.fg.set_timing_offset(to) + except RuntimeError: + pass + + + # Accessor functions for Gui to manipulate receiver parameters + 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 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 functions 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, mod_class, demod_class, rx_callback, options): + gr.top_block.__init__(self) + + self._sample_rate = options.sample_rate + + channelon = True; + + self.gui_on = options.gui + + self._frequency_offset = options.frequency_offset + self._timing_offset = options.timing_offset + self._tx_amplitude = options.tx_amplitude + self._snr_dB = options.snr + + self._noise_voltage = self.get_noise_voltage(self._snr_dB) + + 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) + + # 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 + + if channelon: + self.channel = gr.channel_model(self._noise_voltage, + self.frequency_offset(), + self.timing_offset()) + + if options.discontinuous: + z = 20000*[0,] + self.zeros = gr.vector_source_c(z, True) + packet_size = 5*((4+8+4+1500+4) * 8) + self.mux = gr.stream_mux(gr.sizeof_gr_complex, [packet_size-0, int(9e5)]) + + # Connect components + self.connect(self.txpath, self.throttle, (self.mux,0)) + self.connect(self.zeros, (self.mux,1)) + self.connect(self.mux, self.channel, self.rxpath) + + else: + self.connect(self.txpath, self.throttle, self.channel, self.rxpath) + + if self.gui_on: + self.qapp = QtGui.QApplication(sys.argv) + fftsize = 2048 + + self.snk_tx = qtgui.sink_c(fftsize, gr.firdes.WIN_BLACKMAN_hARRIS, + -1/2, 1/2, + "Tx", True, True, False, True, True) + self.snk_rx = qtgui.sink_c(fftsize, gr.firdes.WIN_BLACKMAN_hARRIS, + -1/2, 1/2, + "Rx", True, True, False, True, True) + + self.snk_tx.set_frequency_axis(0, 80) + self.snk_rx.set_frequency_axis(-60, 20) + + # Connect to the QT sinks + # FIXME: make better exposure to receiver from rxpath + self.receiver = self.rxpath.packet_receiver._demodulator.receiver + self.connect(self.channel, self.snk_tx) + self.connect(self.receiver, self.snk_rx) + + pyTxQt = self.snk_tx.pyqwidget() + pyTx = sip.wrapinstance(pyTxQt, QtGui.QWidget) + + pyRxQt = self.snk_rx.pyqwidget() + pyRx = sip.wrapinstance(pyRxQt, QtGui.QWidget) + + self.main_box = dialog_box(pyTx, pyRx, self) + self.main_box.show() + + else: + # Connect components + self.connect(self.txpath, self.throttle, self.rxpath) + + + + # System Parameters + def sample_rate(self): + return self._sample_rate + + def set_sample_rate(self, sr): + self._sample_rate = sr + #self.throttle.set_samples_per_second(self._sample_rate) + + # Channel Model Parameters + def snr(self): + return self._snr_dB + + def set_snr(self, snr): + self._snr_dB = snr + self._noise_voltage = self.get_noise_voltage(self._snr_dB) + self.channel.set_noise_voltage(self._noise_voltage) + + def get_noise_voltage(self, SNR): + snr = 10.0**(SNR/10.0) + power_in_signal = abs(self._tx_amplitude)**2 + noise_power = power_in_signal/SNR + noise_voltage = math.sqrt(noise_power) + return noise_voltage + + def frequency_offset(self): + return self._frequency_offset * self.sample_rate() + + def set_frequency_offset(self, fo): + self._frequency_offset = fo / self.sample_rate() + self.channel.set_frequency_offset(self._frequency_offset) + + def timing_offset(self): + return self._timing_offset + + def set_timing_offset(self, to): + self._timing_offset = to + self.channel.set_timing_offset(self._timing_offset) + + + # Receiver Parameters + 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) + + + +# ///////////////////////////////////////////////////////////////////////////// +# Thread to handle the packet sending procedure +# Operates in parallel with qApp.exec_() +# ///////////////////////////////////////////////////////////////////////////// + + + +class th_send(Thread): + def __init__(self, send_fnc, megs, sz): + Thread.__init__(self) + self.send = send_fnc + self.nbytes = int(1e6 * megs) + self.pkt_size = int(sz) + + def run(self): + # generate and send packets + n = 0 + pktno = 0 + + while n < self.nbytes: + self.send(struct.pack('!H', pktno & 0xffff) + + (self.pkt_size - 2) * chr(pktno & 0xff)) + n += self.pkt_size + pktno += 1 + + self.send(eof=True) + + def stop(self): + self.nbytes = 0 + + + +# ///////////////////////////////////////////////////////////////////////////// +# main +# ///////////////////////////////////////////////////////////////////////////// + + + +def main(): + + global n_rcvd, n_right, pktno + + n_rcvd = 0 + n_right = 0 + pktno = 0 + + 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) + + + 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() + + 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', + help="Select modulation from: %s [default=%%default]" + % (', '.join(mods.keys()),)) + + parser.add_option("-s", "--size", type="eng_float", default=1500, + help="set packet size [default=%default]") + parser.add_option("-M", "--megabytes", type="eng_float", default=1.0, + help="set megabytes to transmit [default=%default]") + parser.add_option("","--discontinuous", action="store_true", default=False, + help="enable discontinous transmission (bursts of 5 packets)") + parser.add_option("-G", "--gui", action="store_true", default=False, + help="Turn on the GUI [default=%default]") + + channel_grp.add_option("", "--sample-rate", type="eng_float", default=1e5, + help="set speed of channel/simulation rate to RATE [default=%default]") + channel_grp.add_option("", "--snr", type="eng_float", default=30, + help="set the SNR of the channel in dB [default=%default]") + channel_grp.add_option("", "--frequency-offset", type="eng_float", default=0, + help="set frequency offset introduced by channel [default=%default]") + channel_grp.add_option("", "--timing-offset", type="eng_float", default=1.0, + help="set timing offset introduced by channel [default=%default]") + channel_grp.add_option("", "--seed", action="store_true", default=False, + help="use a random seed for AWGN noise [default=%default]") + + transmit_path.add_options(parser, expert_grp) + receive_path.add_options(parser, expert_grp) + + for mod in mods.values(): + mod.add_options(expert_grp) + for demod in demods.values(): + demod.add_options(expert_grp) + + (options, args) = parser.parse_args () + + if len(args) != 0: + parser.print_help() + sys.exit(1) + + r = gr.enable_realtime_scheduling() + if r != gr.RT_OK: + print "Warning: failed to enable realtime scheduling" + + # Create an instance of a hierarchical block + tb = my_top_block(mods[options.modulation], + demods[options.modulation], + rx_callback, options) + tb.start() + + packet_sender = th_send(send_pkt, options.megabytes, options.size) + packet_sender.start() + + if(options.gui): + tb.qapp.exec_() + packet_sender.stop() + else: + # Process until done; hack in to the join to stop on an interrupt + while(packet_sender.isAlive()): + try: + packet_sender.join(1) + except KeyboardInterrupt: + packet_sender.stop() + + +if __name__ == '__main__': + try: + main() + except KeyboardInterrupt: + pass diff --git a/gnuradio-examples/python/digital/benchmark_qt_rx.py b/gnuradio-examples/python/digital/benchmark_qt_rx.py new file mode 100755 index 000000000..7265232e1 --- /dev/null +++ b/gnuradio-examples/python/digital/benchmark_qt_rx.py @@ -0,0 +1,430 @@ +#!/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 + +import random +import struct +import sys + +# from current dir +from receive_path import receive_path + +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 "\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.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() + 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) + g = self.subdev.gain_range() + if options.show_rx_gain_range: + print "Rx Gain Range: minimum = %g, maximum = %g, step size = %g" \ + % (g[0], g[1], g[2]) + self.set_gain(options.rx_gain) + self.set_auto_tr(True) # enable Auto Transmit/Receive switching + + # 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 + + self.snk_rxin = qtgui.sink_c(fftsize, gr.firdes.WIN_BLACKMAN_hARRIS, + -1/2, 1/2, + "Received", True, True, False, True, True) + self.snk_rx = qtgui.sink_c(fftsize, gr.firdes.WIN_BLACKMAN_hARRIS, + -1/2, 1/2, + "Post-Synchronizer", True, True, False, True, True) + + self.snk_rxin.set_frequency_axis(-60, 20) + self.snk_rx.set_frequency_axis(-60, 20) + + # 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): + self.u = usrp.source_c () + adc_rate = self.u.adc_rate() + + self.u.set_decim_rate(self._decim) + + # determine the daughterboard subdevice we're using + if self._rx_subdev_spec is None: + self._rx_subdev_spec = usrp.pick_rx_subdevice(self.u) + self.subdev = usrp.selected_subdev(self.u, self._rx_subdev_spec) + + self.u.set_mux(usrp.determine_rx_mux_value(self.u, self._rx_subdev_spec)) + + 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. + """ + r = self.u.tune(0, self.subdev, target_freq) + if r: + self._rx_freq = target_freq + return True + + return False + + def set_gain(self, gain): + """ + Sets the analog gain in the USRP + """ + if gain is None: + r = self.subdev.gain_range() + gain = (r[0] + r[1])/2 # set gain to midpoint + self._rx_gain = gain + return self.subdev.set_gain(self._rx_gain) + + def set_auto_tr(self, enable): + return self.subdev.set_auto_tr(enable) + + def set_decim(self, decim): + self._decim = decim + self.u.set_decim_rate(self._decim) + + 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) + + 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 diff --git a/gnuradio-examples/python/digital/qt_digital_window.ui b/gnuradio-examples/python/digital/qt_digital_window.ui new file mode 100644 index 000000000..669942cb9 --- /dev/null +++ b/gnuradio-examples/python/digital/qt_digital_window.ui @@ -0,0 +1,395 @@ +<?xml version="1.0" encoding="UTF-8"?> +<ui version="4.0"> + <class>DigitalWindow</class> + <widget class="QMainWindow" name="DigitalWindow"> + <property name="geometry"> + <rect> + <x>0</x> + <y>0</y> + <width>1236</width> + <height>739</height> + </rect> + </property> + <property name="windowTitle"> + <string>MainWindow</string> + </property> + <widget class="QWidget" name="centralwidget"> + <widget class="QPushButton" name="closeButton"> + <property name="geometry"> + <rect> + <x>1120</x> + <y>640</y> + <width>101</width> + <height>31</height> + </rect> + </property> + <property name="text"> + <string>Close</string> + </property> + </widget> + <widget class="QFrame" name="sinkFrame"> + <property name="geometry"> + <rect> + <x>10</x> + <y>10</y> + <width>1221</width> + <height>501</height> + </rect> + </property> + <property name="frameShape"> + <enum>QFrame::StyledPanel</enum> + </property> + <property name="frameShadow"> + <enum>QFrame::Raised</enum> + </property> + <widget class="QWidget" name="horizontalLayoutWidget"> + <property name="geometry"> + <rect> + <x>10</x> + <y>10</y> + <width>1201</width> + <height>481</height> + </rect> + </property> + <layout class="QHBoxLayout" name="sinkLayout"/> + </widget> + </widget> + <widget class="QGroupBox" name="channelModeBox"> + <property name="geometry"> + <rect> + <x>290</x> + <y>520</y> + <width>291</width> + <height>161</height> + </rect> + </property> + <property name="title"> + <string>Channel Model Parameters</string> + </property> + <widget class="QLabel" name="timeLabel"> + <property name="geometry"> + <rect> + <x>10</x> + <y>90</y> + <width>101</width> + <height>17</height> + </rect> + </property> + <property name="text"> + <string>Timing Offset</string> + </property> + </widget> + <widget class="QLineEdit" name="timeEdit"> + <property name="geometry"> + <rect> + <x>160</x> + <y>90</y> + <width>113</width> + <height>23</height> + </rect> + </property> + </widget> + <widget class="QLineEdit" name="snrEdit"> + <property name="geometry"> + <rect> + <x>160</x> + <y>30</y> + <width>113</width> + <height>23</height> + </rect> + </property> + </widget> + <widget class="QLabel" name="snrLabel"> + <property name="geometry"> + <rect> + <x>10</x> + <y>30</y> + <width>111</width> + <height>20</height> + </rect> + </property> + <property name="text"> + <string>SNR (dB)</string> + </property> + </widget> + <widget class="QLineEdit" name="freqEdit"> + <property name="geometry"> + <rect> + <x>160</x> + <y>60</y> + <width>113</width> + <height>23</height> + </rect> + </property> + </widget> + <widget class="QLabel" name="freqLabel"> + <property name="geometry"> + <rect> + <x>10</x> + <y>60</y> + <width>141</width> + <height>17</height> + </rect> + </property> + <property name="text"> + <string>Frequency Offset (Hz)</string> + </property> + </widget> + </widget> + <widget class="QGroupBox" name="rxBox"> + <property name="geometry"> + <rect> + <x>590</x> + <y>520</y> + <width>251</width> + <height>161</height> + </rect> + </property> + <property name="title"> + <string>Receiver Parameters</string> + </property> + <widget class="QLineEdit" name="gainMuEdit"> + <property name="geometry"> + <rect> + <x>120</x> + <y>30</y> + <width>113</width> + <height>23</height> + </rect> + </property> + </widget> + <widget class="QLabel" name="gainMuLabel"> + <property name="geometry"> + <rect> + <x>10</x> + <y>30</y> + <width>111</width> + <height>20</height> + </rect> + </property> + <property name="text"> + <string>Gain mu</string> + </property> + </widget> + <widget class="QLineEdit" name="alphaEdit"> + <property name="geometry"> + <rect> + <x>120</x> + <y>60</y> + <width>113</width> + <height>23</height> + </rect> + </property> + </widget> + <widget class="QLabel" name="alphaLabel"> + <property name="geometry"> + <rect> + <x>10</x> + <y>60</y> + <width>111</width> + <height>20</height> + </rect> + </property> + <property name="text"> + <string>Alpha</string> + </property> + </widget> + </widget> + <widget class="QGroupBox" name="sysBox"> + <property name="geometry"> + <rect> + <x>20</x> + <y>520</y> + <width>261</width> + <height>161</height> + </rect> + </property> + <property name="title"> + <string>System Parameters</string> + </property> + <widget class="QLineEdit" name="sampleRateEdit"> + <property name="geometry"> + <rect> + <x>140</x> + <y>30</y> + <width>113</width> + <height>23</height> + </rect> + </property> + </widget> + <widget class="QLabel" name="sampleRateLabel"> + <property name="geometry"> + <rect> + <x>10</x> + <y>30</y> + <width>121</width> + <height>20</height> + </rect> + </property> + <property name="text"> + <string>Sample Rate (sps)</string> + </property> + </widget> + </widget> + <widget class="QPushButton" name="pauseButton"> + <property name="geometry"> + <rect> + <x>1120</x> + <y>520</y> + <width>101</width> + <height>31</height> + </rect> + </property> + <property name="text"> + <string>Pause</string> + </property> + </widget> + <widget class="QGroupBox" name="rxBox_2"> + <property name="geometry"> + <rect> + <x>850</x> + <y>520</y> + <width>251</width> + <height>161</height> + </rect> + </property> + <property name="title"> + <string>Received Packet Info</string> + </property> + <widget class="QLineEdit" name="pktsRcvdEdit"> + <property name="geometry"> + <rect> + <x>120</x> + <y>30</y> + <width>113</width> + <height>23</height> + </rect> + </property> + </widget> + <widget class="QLabel" name="pktsRcvdLabel"> + <property name="geometry"> + <rect> + <x>10</x> + <y>30</y> + <width>111</width> + <height>20</height> + </rect> + </property> + <property name="text"> + <string>Packets Rcvd.</string> + </property> + </widget> + <widget class="QLineEdit" name="pktsCorrectEdit"> + <property name="geometry"> + <rect> + <x>120</x> + <y>60</y> + <width>113</width> + <height>23</height> + </rect> + </property> + </widget> + <widget class="QLabel" name="pktsCorrectLabel"> + <property name="geometry"> + <rect> + <x>10</x> + <y>60</y> + <width>111</width> + <height>20</height> + </rect> + </property> + <property name="text"> + <string>Packets Correct</string> + </property> + </widget> + <widget class="QLabel" name="perLabel"> + <property name="geometry"> + <rect> + <x>10</x> + <y>90</y> + <width>111</width> + <height>20</height> + </rect> + </property> + <property name="text"> + <string>PER</string> + </property> + </widget> + <widget class="QLineEdit" name="perEdit"> + <property name="geometry"> + <rect> + <x>120</x> + <y>90</y> + <width>113</width> + <height>23</height> + </rect> + </property> + </widget> + </widget> + </widget> + <widget class="QMenuBar" name="menubar"> + <property name="geometry"> + <rect> + <x>0</x> + <y>0</y> + <width>1236</width> + <height>25</height> + </rect> + </property> + <widget class="QMenu" name="menuFile"> + <property name="title"> + <string>&File</string> + </property> + <addaction name="actionExit"/> + </widget> + <addaction name="menuFile"/> + </widget> + <widget class="QStatusBar" name="statusbar"/> + <action name="actionExit"> + <property name="text"> + <string>E&xit</string> + </property> + </action> + </widget> + <tabstops> + <tabstop>closeButton</tabstop> + <tabstop>snrEdit</tabstop> + <tabstop>freqEdit</tabstop> + <tabstop>timeEdit</tabstop> + </tabstops> + <resources/> + <connections> + <connection> + <sender>closeButton</sender> + <signal>clicked()</signal> + <receiver>DigitalWindow</receiver> + <slot>close()</slot> + <hints> + <hint type="sourcelabel"> + <x>322</x> + <y>623</y> + </hint> + <hint type="destinationlabel"> + <x>66</x> + <y>561</y> + </hint> + </hints> + </connection> + <connection> + <sender>actionExit</sender> + <signal>triggered()</signal> + <receiver>DigitalWindow</receiver> + <slot>close()</slot> + <hints> + <hint type="sourcelabel"> + <x>-1</x> + <y>-1</y> + </hint> + <hint type="destinationlabel"> + <x>617</x> + <y>327</y> + </hint> + </hints> + </connection> + </connections> +</ui> diff --git a/gnuradio-examples/python/digital/qt_rx_window.ui b/gnuradio-examples/python/digital/qt_rx_window.ui new file mode 100644 index 000000000..9b0b0be84 --- /dev/null +++ b/gnuradio-examples/python/digital/qt_rx_window.ui @@ -0,0 +1,329 @@ +<ui version="4.0" > + <class>DigitalWindow</class> + <widget class="QMainWindow" name="DigitalWindow" > + <property name="geometry" > + <rect> + <x>0</x> + <y>0</y> + <width>1085</width> + <height>766</height> + </rect> + </property> + <property name="windowTitle" > + <string>MainWindow</string> + </property> + <widget class="QWidget" name="centralwidget" > + <widget class="QPushButton" name="closeButton" > + <property name="geometry" > + <rect> + <x>960</x> + <y>670</y> + <width>101</width> + <height>31</height> + </rect> + </property> + <property name="text" > + <string>Close</string> + </property> + </widget> + <widget class="QFrame" name="sinkFrame" > + <property name="geometry" > + <rect> + <x>10</x> + <y>10</y> + <width>1061</width> + <height>501</height> + </rect> + </property> + <property name="frameShape" > + <enum>QFrame::StyledPanel</enum> + </property> + <property name="frameShadow" > + <enum>QFrame::Raised</enum> + </property> + <widget class="QWidget" name="horizontalLayoutWidget" > + <property name="geometry" > + <rect> + <x>10</x> + <y>10</y> + <width>1041</width> + <height>481</height> + </rect> + </property> + <layout class="QHBoxLayout" name="sinkLayout" /> + </widget> + </widget> + <widget class="QGroupBox" name="rxBox" > + <property name="geometry" > + <rect> + <x>10</x> + <y>520</y> + <width>251</width> + <height>181</height> + </rect> + </property> + <property name="title" > + <string>Receiver Parameters</string> + </property> + <widget class="QLineEdit" name="gainMuEdit" > + <property name="geometry" > + <rect> + <x>120</x> + <y>120</y> + <width>113</width> + <height>23</height> + </rect> + </property> + </widget> + <widget class="QLabel" name="gainMuLabel" > + <property name="geometry" > + <rect> + <x>10</x> + <y>120</y> + <width>111</width> + <height>20</height> + </rect> + </property> + <property name="text" > + <string>mu's gain</string> + </property> + </widget> + <widget class="QLineEdit" name="alphaEdit" > + <property name="geometry" > + <rect> + <x>120</x> + <y>150</y> + <width>113</width> + <height>23</height> + </rect> + </property> + </widget> + <widget class="QLabel" name="alphaLabel" > + <property name="geometry" > + <rect> + <x>10</x> + <y>150</y> + <width>111</width> + <height>20</height> + </rect> + </property> + <property name="text" > + <string>Alpha</string> + </property> + </widget> + <widget class="QLabel" name="gainLabel" > + <property name="geometry" > + <rect> + <x>10</x> + <y>60</y> + <width>101</width> + <height>17</height> + </rect> + </property> + <property name="text" > + <string>Gain (dB)</string> + </property> + </widget> + <widget class="QLineEdit" name="freqEdit" > + <property name="geometry" > + <rect> + <x>120</x> + <y>30</y> + <width>113</width> + <height>23</height> + </rect> + </property> + </widget> + <widget class="QLabel" name="freqLabel" > + <property name="geometry" > + <rect> + <x>10</x> + <y>30</y> + <width>141</width> + <height>17</height> + </rect> + </property> + <property name="text" > + <string>Frequency (Hz)</string> + </property> + </widget> + <widget class="QLineEdit" name="gainEdit" > + <property name="geometry" > + <rect> + <x>120</x> + <y>60</y> + <width>113</width> + <height>23</height> + </rect> + </property> + </widget> + <widget class="QLabel" name="decimLabel" > + <property name="geometry" > + <rect> + <x>10</x> + <y>90</y> + <width>101</width> + <height>17</height> + </rect> + </property> + <property name="text" > + <string>Decimation</string> + </property> + </widget> + <widget class="QLineEdit" name="decimEdit" > + <property name="geometry" > + <rect> + <x>120</x> + <y>90</y> + <width>113</width> + <height>23</height> + </rect> + </property> + </widget> + </widget> + <widget class="QGroupBox" name="rxBox_2" > + <property name="geometry" > + <rect> + <x>300</x> + <y>520</y> + <width>251</width> + <height>121</height> + </rect> + </property> + <property name="title" > + <string>Received Packet Info</string> + </property> + <widget class="QLineEdit" name="pktsRcvdEdit" > + <property name="geometry" > + <rect> + <x>120</x> + <y>30</y> + <width>113</width> + <height>23</height> + </rect> + </property> + </widget> + <widget class="QLabel" name="pktsRcvdLabel" > + <property name="geometry" > + <rect> + <x>10</x> + <y>30</y> + <width>111</width> + <height>20</height> + </rect> + </property> + <property name="text" > + <string>Packets Rcvd.</string> + </property> + </widget> + <widget class="QLineEdit" name="pktsCorrectEdit" > + <property name="geometry" > + <rect> + <x>120</x> + <y>60</y> + <width>113</width> + <height>23</height> + </rect> + </property> + </widget> + <widget class="QLabel" name="pktsCorrectLabel" > + <property name="geometry" > + <rect> + <x>10</x> + <y>60</y> + <width>111</width> + <height>20</height> + </rect> + </property> + <property name="text" > + <string>Packets Correct</string> + </property> + </widget> + <widget class="QLabel" name="perLabel" > + <property name="geometry" > + <rect> + <x>10</x> + <y>90</y> + <width>111</width> + <height>20</height> + </rect> + </property> + <property name="text" > + <string>PER</string> + </property> + </widget> + <widget class="QLineEdit" name="perEdit" > + <property name="geometry" > + <rect> + <x>120</x> + <y>90</y> + <width>113</width> + <height>23</height> + </rect> + </property> + </widget> + </widget> + </widget> + <widget class="QMenuBar" name="menubar" > + <property name="geometry" > + <rect> + <x>0</x> + <y>0</y> + <width>1085</width> + <height>24</height> + </rect> + </property> + <widget class="QMenu" name="menuFile" > + <property name="title" > + <string>&File</string> + </property> + <addaction name="actionExit" /> + </widget> + <addaction name="menuFile" /> + </widget> + <widget class="QStatusBar" name="statusbar" /> + <action name="actionExit" > + <property name="text" > + <string>E&xit</string> + </property> + </action> + </widget> + <tabstops> + <tabstop>closeButton</tabstop> + </tabstops> + <resources/> + <connections> + <connection> + <sender>closeButton</sender> + <signal>clicked()</signal> + <receiver>DigitalWindow</receiver> + <slot>close()</slot> + <hints> + <hint type="sourcelabel" > + <x>322</x> + <y>623</y> + </hint> + <hint type="destinationlabel" > + <x>66</x> + <y>561</y> + </hint> + </hints> + </connection> + <connection> + <sender>actionExit</sender> + <signal>triggered()</signal> + <receiver>DigitalWindow</receiver> + <slot>close()</slot> + <hints> + <hint type="sourcelabel" > + <x>-1</x> + <y>-1</y> + </hint> + <hint type="destinationlabel" > + <x>617</x> + <y>327</y> + </hint> + </hints> + </connection> + </connections> +</ui> |