diff options
Diffstat (limited to 'gr-qtgui/src/python/qt_digital.py')
| -rwxr-xr-x | gr-qtgui/src/python/qt_digital.py | 276 |
1 files changed, 0 insertions, 276 deletions
diff --git a/gr-qtgui/src/python/qt_digital.py b/gr-qtgui/src/python/qt_digital.py deleted file mode 100755 index 679f144ef..000000000 --- a/gr-qtgui/src/python/qt_digital.py +++ /dev/null @@ -1,276 +0,0 @@ -#!/usr/bin/env python - -from gnuradio import gr, blks2 -from gnuradio.qtgui import qtgui -from gnuradio import eng_notation -from PyQt4 import QtGui, QtCore -import sys, sip -import scipy - -try: - from qt_digital_window import Ui_DigitalWindow -except ImportError: - print "Error: could not find qt_digital_window.py:" - print "\t\"Please run: pyuic4 qt_digital_window.ui -o qt_digital_window.py\"" - sys.exit(1) - -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) - - - 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 - - -class my_top_block(gr.top_block): - def __init__(self): - gr.top_block.__init__(self) - - self.qapp = QtGui.QApplication(sys.argv) - - self._sample_rate = 2000e3 - - self.sps = 2 - self.excess_bw = 0.35 - self.gray_code = True - - fftsize = 2048 - - self.data = scipy.random.randint(0, 255, 1000) - self.src = gr.vector_source_b(self.data.tolist(), True) - self.mod = blks2.dqpsk_mod(self.sps, self.excess_bw, self.gray_code, False, False) - - self.rrctaps = gr.firdes.root_raised_cosine(1, self.sps, 1, self.excess_bw, 21) - self.rx_rrc = gr.fir_filter_ccf(1, self.rrctaps) - - - # Set up the carrier & clock recovery parameters - self.arity = 4 - self.mu = 0.5 - self.gain_mu = 0.05 - self.omega = self.sps - self.gain_omega = .25 * self.gain_mu * self.gain_mu - self.omega_rel_lim = 0.05 - - self.alpha = 0.15 - self.beta = 0.25 * self.alpha * self.alpha - self.fmin = -1000/self.sample_rate() - self.fmax = 1000/self.sample_rate() - - self.receiver = gr.mpsk_receiver_cc(self.arity, 0, - self.alpha, self.beta, - self.fmin, self.fmax, - self.mu, self.gain_mu, - self.omega, self.gain_omega, - self.omega_rel_lim) - - - self.snr_dB = 15 - noise = self.get_noise_voltage(self.snr_dB) - self.fo = 100/self.sample_rate() - self.to = 1.0 - self.channel = gr.channel_model(noise, self.fo, self.to) - - self.thr = gr.throttle(gr.sizeof_char, self._sample_rate) - self.snk_tx = qtgui.sink_c(fftsize, gr.firdes.WIN_BLACKMAN_hARRIS, - 0, self._sample_rate*self.sps, - "Tx", True, True, False, True, True) - - self.snk_rx = qtgui.sink_c(fftsize, gr.firdes.WIN_BLACKMAN_hARRIS, - 0, self._sample_rate, - "Rx", True, True, False, True, True) - - self.connect(self.src, self.thr, self.mod, self.channel, self.snk_tx) - self.connect(self.channel, self.rx_rrc, 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() - - - def get_noise_voltage(self, SNR): - S = 0 # dBm, assuming signal power normalized - N = S - SNR # dBm - npwr = pow(10.0, N/10.0) # ratio - nv = scipy.sqrt(npwr * self.sps) # convert the noise voltage - return nv - - - # System Parameters - def sample_rate(self): - return self._sample_rate - - def set_sample_rate(self, sr): - self._sample_rate = sr - - - # Channel Model Parameters - def snr(self): - return self.snr_dB - - def set_snr(self, snr): - self.snr_dB = snr - noise = self.get_noise_voltage(self.snr_dB) - self.channel.set_noise_voltage(noise) - - def frequency_offset(self): - return self.fo * self.sample_rate() - - def set_frequency_offset(self, fo): - self.fo = fo / self.sample_rate() - self.channel.set_frequency_offset(self.fo) - - def timing_offset(self): - return self.to - - def set_timing_offset(self, to): - self.to = to - self.channel.set_timing_offset(self.to) - - - # 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) - - -if __name__ == "__main__": - tb = my_top_block(); - tb.start() - tb.qapp.exec_() |