#!/usr/bin/env python3 # -*- coding: utf-8 -*- # # SPDX-License-Identifier: GPL-3.0 # # GNU Radio Python Flow Graph # Title: QAM # Author: Pross Naoki, Halter Sara Cinzia # GNU Radio version: 3.8.2.0 from distutils.version import StrictVersion if __name__ == '__main__': import ctypes import sys if sys.platform.startswith('linux'): try: x11 = ctypes.cdll.LoadLibrary('libX11.so') x11.XInitThreads() except: print("Warning: failed to XInitThreads()") from PyQt5 import Qt from gnuradio import qtgui from gnuradio.filter import firdes import sip from gnuradio import blocks import numpy from gnuradio import channels from gnuradio import digital from gnuradio import gr import sys import signal from argparse import ArgumentParser from gnuradio.eng_arg import eng_float, intx from gnuradio import eng_notation from gnuradio.qtgui import Range, RangeWidget from gnuradio import qtgui class qam(gr.top_block, Qt.QWidget): def __init__(self): gr.top_block.__init__(self, "QAM") Qt.QWidget.__init__(self) self.setWindowTitle("QAM") qtgui.util.check_set_qss() try: self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc')) except: pass self.top_scroll_layout = Qt.QVBoxLayout() self.setLayout(self.top_scroll_layout) self.top_scroll = Qt.QScrollArea() self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame) self.top_scroll_layout.addWidget(self.top_scroll) self.top_scroll.setWidgetResizable(True) self.top_widget = Qt.QWidget() self.top_scroll.setWidget(self.top_widget) self.top_layout = Qt.QVBoxLayout(self.top_widget) self.top_grid_layout = Qt.QGridLayout() self.top_layout.addLayout(self.top_grid_layout) self.settings = Qt.QSettings("GNU Radio", "qam") try: if StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"): self.restoreGeometry(self.settings.value("geometry").toByteArray()) else: self.restoreGeometry(self.settings.value("geometry")) except: pass ################################################## # Variables ################################################## self.sps = sps = 4 self.nfilts = nfilts = 32 self.excess_bw = excess_bw = 350e-3 self.timing_loop_bw = timing_loop_bw = 2 * 3.141592653589793 / 100 self.time_offset = time_offset = 1.0 self.samp_rate = samp_rate = 32000 self.rrc_taps = rrc_taps = firdes.root_raised_cosine(nfilts, nfilts, 1.0/float(sps), excess_bw, 45*nfilts) self.qam_const = qam_const = digital.constellation_rect([(-3-3j), (-1-3j), (1-3j), (3-3j), (-3-1j), (-1-1j), (1-1j), (3-1j), (-3+1j), (-1+1j), (1+1j), (3+1j), (-3+3j), (-1+3j), (1+3j), (3+3j)], [0, 4, 12, 8, 1, 5, 13, 9, 3, 7, 15, 11, 2, 6, 14, 10], 4, 1, 1, 1, 1).base() self.phase_bw = phase_bw = 2 * 3.141592653589793 / 100 self.noise_volt = noise_volt = 0.0001 self.freq_offset = freq_offset = 0 self.eq_ntaps = eq_ntaps = 15 self.eq_mod = eq_mod = 1 self.eq_gain = eq_gain = .01 self.const = const = digital.constellation_16qam().base() self.chn_taps = chn_taps = [1.0 + 0.0j, ] ################################################## # Blocks ################################################## self.params = Qt.QTabWidget() self.params_widget_0 = Qt.QWidget() self.params_layout_0 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.params_widget_0) self.params_grid_layout_0 = Qt.QGridLayout() self.params_layout_0.addLayout(self.params_grid_layout_0) self.params.addTab(self.params_widget_0, 'Channel') self.params_widget_1 = Qt.QWidget() self.params_layout_1 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.params_widget_1) self.params_grid_layout_1 = Qt.QGridLayout() self.params_layout_1.addLayout(self.params_grid_layout_1) self.params.addTab(self.params_widget_1, 'Receiver') self.top_grid_layout.addWidget(self.params) self._timing_loop_bw_range = Range(0, 200e-3, 10e-3, 2 * 3.141592653589793 / 100, 200) self._timing_loop_bw_win = RangeWidget(self._timing_loop_bw_range, self.set_timing_loop_bw, 'Time Bandwidth', "counter_slider", float) self.params_grid_layout_0.addWidget(self._timing_loop_bw_win, 1, 1, 1, 1) for r in range(1, 2): self.params_grid_layout_0.setRowStretch(r, 1) for c in range(1, 2): self.params_grid_layout_0.setColumnStretch(c, 1) self._time_offset_range = Range(0.999, 1.001, 0.0001, 1.0, 200) self._time_offset_win = RangeWidget(self._time_offset_range, self.set_time_offset, 'Timing Offset', "counter_slider", float) self.params_grid_layout_0.addWidget(self._time_offset_win, 0, 1, 1, 1) for r in range(0, 1): self.params_grid_layout_0.setRowStretch(r, 1) for c in range(1, 2): self.params_grid_layout_0.setColumnStretch(c, 1) self.plots = Qt.QTabWidget() self.plots_widget_0 = Qt.QWidget() self.plots_layout_0 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.plots_widget_0) self.plots_grid_layout_0 = Qt.QGridLayout() self.plots_layout_0.addLayout(self.plots_grid_layout_0) self.plots.addTab(self.plots_widget_0, 'Constellations') self.plots_widget_1 = Qt.QWidget() self.plots_layout_1 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.plots_widget_1) self.plots_grid_layout_1 = Qt.QGridLayout() self.plots_layout_1.addLayout(self.plots_grid_layout_1) self.plots.addTab(self.plots_widget_1, 'Frequency') self.plots_widget_2 = Qt.QWidget() self.plots_layout_2 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.plots_widget_2) self.plots_grid_layout_2 = Qt.QGridLayout() self.plots_layout_2.addLayout(self.plots_grid_layout_2) self.plots.addTab(self.plots_widget_2, 'Time') self.top_grid_layout.addWidget(self.plots) self._phase_bw_range = Range(0, 1, .01, 2 * 3.141592653589793 / 100, 200) self._phase_bw_win = RangeWidget(self._phase_bw_range, self.set_phase_bw, 'Phase Bandwidth', "counter_slider", float) self.params_grid_layout_1.addWidget(self._phase_bw_win, 1, 0, 1, 1) for r in range(1, 2): self.params_grid_layout_1.setRowStretch(r, 1) for c in range(0, 1): self.params_grid_layout_1.setColumnStretch(c, 1) self._noise_volt_range = Range(0, 1, 0.01, 0.0001, 200) self._noise_volt_win = RangeWidget(self._noise_volt_range, self.set_noise_volt, 'Noise Voltage', "counter_slider", float) self.params_grid_layout_0.addWidget(self._noise_volt_win, 0, 0, 1, 1) for r in range(0, 1): self.params_grid_layout_0.setRowStretch(r, 1) for c in range(0, 1): self.params_grid_layout_0.setColumnStretch(c, 1) self._freq_offset_range = Range(-100e-3, 100e-3, 1e-3, 0, 200) self._freq_offset_win = RangeWidget(self._freq_offset_range, self.set_freq_offset, 'Frequency Offset', "counter_slider", float) self.params_grid_layout_0.addWidget(self._freq_offset_win, 1, 0, 1, 1) for r in range(1, 2): self.params_grid_layout_0.setRowStretch(r, 1) for c in range(0, 1): self.params_grid_layout_0.setColumnStretch(c, 1) self._eq_gain_range = Range(0, .1, .001, .01, 200) self._eq_gain_win = RangeWidget(self._eq_gain_range, self.set_eq_gain, 'Equalizer Rate', "counter_slider", float) self.params_grid_layout_1.addWidget(self._eq_gain_win, 0, 0, 1, 1) for r in range(0, 1): self.params_grid_layout_1.setRowStretch(r, 1) for c in range(0, 1): self.params_grid_layout_1.setColumnStretch(c, 1) self.qtgui_time_sink_x_0 = qtgui.time_sink_f( 1024, #size samp_rate, #samp_rate "Decoded", #name 2 #number of inputs ) self.qtgui_time_sink_x_0.set_update_time(0.10) self.qtgui_time_sink_x_0.set_y_axis(-1, 1) self.qtgui_time_sink_x_0.set_y_label('Amplitude', "") self.qtgui_time_sink_x_0.enable_tags(True) self.qtgui_time_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, 0, "") self.qtgui_time_sink_x_0.enable_autoscale(False) self.qtgui_time_sink_x_0.enable_grid(False) self.qtgui_time_sink_x_0.enable_axis_labels(True) self.qtgui_time_sink_x_0.enable_control_panel(False) self.qtgui_time_sink_x_0.enable_stem_plot(False) labels = ['Received', 'Sent', 'Signal 3', 'Signal 4', 'Signal 5', 'Signal 6', 'Signal 7', 'Signal 8', 'Signal 9', 'Signal 10'] widths = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] colors = ['blue', 'red', 'green', 'black', 'cyan', 'magenta', 'yellow', 'dark red', 'dark green', 'dark blue'] alphas = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0] styles = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] markers = [-1, -1, -1, -1, -1, -1, -1, -1, -1, -1] for i in range(2): if len(labels[i]) == 0: self.qtgui_time_sink_x_0.set_line_label(i, "Data {0}".format(i)) else: self.qtgui_time_sink_x_0.set_line_label(i, labels[i]) self.qtgui_time_sink_x_0.set_line_width(i, widths[i]) self.qtgui_time_sink_x_0.set_line_color(i, colors[i]) self.qtgui_time_sink_x_0.set_line_style(i, styles[i]) self.qtgui_time_sink_x_0.set_line_marker(i, markers[i]) self.qtgui_time_sink_x_0.set_line_alpha(i, alphas[i]) self._qtgui_time_sink_x_0_win = sip.wrapinstance(self.qtgui_time_sink_x_0.pyqwidget(), Qt.QWidget) self.plots_grid_layout_2.addWidget(self._qtgui_time_sink_x_0_win, 0, 0, 1, 1) for r in range(0, 1): self.plots_grid_layout_2.setRowStretch(r, 1) for c in range(0, 1): self.plots_grid_layout_2.setColumnStretch(c, 1) self.qtgui_freq_sink_x_0 = qtgui.freq_sink_c( 1024, #size firdes.WIN_BLACKMAN_hARRIS, #wintype 0, #fc samp_rate, #bw "Channel", #name 1 ) self.qtgui_freq_sink_x_0.set_update_time(0.10) self.qtgui_freq_sink_x_0.set_y_axis(-140, 10) self.qtgui_freq_sink_x_0.set_y_label('Relative Gain', 'dB') self.qtgui_freq_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "") self.qtgui_freq_sink_x_0.enable_autoscale(False) self.qtgui_freq_sink_x_0.enable_grid(False) self.qtgui_freq_sink_x_0.set_fft_average(1.0) self.qtgui_freq_sink_x_0.enable_axis_labels(True) self.qtgui_freq_sink_x_0.enable_control_panel(False) labels = ['', '', '', '', '', '', '', '', '', ''] widths = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] colors = ["blue", "red", "green", "black", "cyan", "magenta", "yellow", "dark red", "dark green", "dark blue"] alphas = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0] for i in range(1): if len(labels[i]) == 0: self.qtgui_freq_sink_x_0.set_line_label(i, "Data {0}".format(i)) else: self.qtgui_freq_sink_x_0.set_line_label(i, labels[i]) self.qtgui_freq_sink_x_0.set_line_width(i, widths[i]) self.qtgui_freq_sink_x_0.set_line_color(i, colors[i]) self.qtgui_freq_sink_x_0.set_line_alpha(i, alphas[i]) self._qtgui_freq_sink_x_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0.pyqwidget(), Qt.QWidget) self.plots_grid_layout_1.addWidget(self._qtgui_freq_sink_x_0_win, 0, 0, 1, 1) for r in range(0, 1): self.plots_grid_layout_1.setRowStretch(r, 1) for c in range(0, 1): self.plots_grid_layout_1.setColumnStretch(c, 1) self.qtgui_const_sink_x_2 = qtgui.const_sink_c( 1024, #size "Locked", #name 1 #number of inputs ) self.qtgui_const_sink_x_2.set_update_time(0.10) self.qtgui_const_sink_x_2.set_y_axis(-2, 2) self.qtgui_const_sink_x_2.set_x_axis(-2, 2) self.qtgui_const_sink_x_2.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, "") self.qtgui_const_sink_x_2.enable_autoscale(False) self.qtgui_const_sink_x_2.enable_grid(False) self.qtgui_const_sink_x_2.enable_axis_labels(True) labels = ['', '', '', '', '', '', '', '', '', ''] widths = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] colors = ["blue", "red", "red", "red", "red", "red", "red", "red", "red", "red"] styles = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0] markers = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0] alphas = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0] for i in range(1): if len(labels[i]) == 0: self.qtgui_const_sink_x_2.set_line_label(i, "Data {0}".format(i)) else: self.qtgui_const_sink_x_2.set_line_label(i, labels[i]) self.qtgui_const_sink_x_2.set_line_width(i, widths[i]) self.qtgui_const_sink_x_2.set_line_color(i, colors[i]) self.qtgui_const_sink_x_2.set_line_style(i, styles[i]) self.qtgui_const_sink_x_2.set_line_marker(i, markers[i]) self.qtgui_const_sink_x_2.set_line_alpha(i, alphas[i]) self._qtgui_const_sink_x_2_win = sip.wrapinstance(self.qtgui_const_sink_x_2.pyqwidget(), Qt.QWidget) self.plots_grid_layout_0.addWidget(self._qtgui_const_sink_x_2_win, 1, 1, 1, 1) for r in range(1, 2): self.plots_grid_layout_0.setRowStretch(r, 1) for c in range(1, 2): self.plots_grid_layout_0.setColumnStretch(c, 1) self.qtgui_const_sink_x_1 = qtgui.const_sink_c( 1024, #size "Equalized", #name 1 #number of inputs ) self.qtgui_const_sink_x_1.set_update_time(0.10) self.qtgui_const_sink_x_1.set_y_axis(-2, 2) self.qtgui_const_sink_x_1.set_x_axis(-2, 2) self.qtgui_const_sink_x_1.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, "") self.qtgui_const_sink_x_1.enable_autoscale(False) self.qtgui_const_sink_x_1.enable_grid(False) self.qtgui_const_sink_x_1.enable_axis_labels(True) labels = ['', '', '', '', '', '', '', '', '', ''] widths = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] colors = ["blue", "red", "red", "red", "red", "red", "red", "red", "red", "red"] styles = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0] markers = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0] alphas = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0] for i in range(1): if len(labels[i]) == 0: self.qtgui_const_sink_x_1.set_line_label(i, "Data {0}".format(i)) else: self.qtgui_const_sink_x_1.set_line_label(i, labels[i]) self.qtgui_const_sink_x_1.set_line_width(i, widths[i]) self.qtgui_const_sink_x_1.set_line_color(i, colors[i]) self.qtgui_const_sink_x_1.set_line_style(i, styles[i]) self.qtgui_const_sink_x_1.set_line_marker(i, markers[i]) self.qtgui_const_sink_x_1.set_line_alpha(i, alphas[i]) self._qtgui_const_sink_x_1_win = sip.wrapinstance(self.qtgui_const_sink_x_1.pyqwidget(), Qt.QWidget) self.plots_grid_layout_0.addWidget(self._qtgui_const_sink_x_1_win, 1, 0, 1, 1) for r in range(1, 2): self.plots_grid_layout_0.setRowStretch(r, 1) for c in range(0, 1): self.plots_grid_layout_0.setColumnStretch(c, 1) self.qtgui_const_sink_x_0_0 = qtgui.const_sink_c( 2048, #size "Synchronized", #name 1 #number of inputs ) self.qtgui_const_sink_x_0_0.set_update_time(0.10) self.qtgui_const_sink_x_0_0.set_y_axis(-2, 2) self.qtgui_const_sink_x_0_0.set_x_axis(-2, 2) self.qtgui_const_sink_x_0_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, "") self.qtgui_const_sink_x_0_0.enable_autoscale(False) self.qtgui_const_sink_x_0_0.enable_grid(False) self.qtgui_const_sink_x_0_0.enable_axis_labels(True) labels = ['', '', '', '', '', '', '', '', '', ''] widths = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] colors = ["blue", "red", "red", "red", "red", "red", "red", "red", "red", "red"] styles = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0] markers = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0] alphas = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0] for i in range(1): if len(labels[i]) == 0: self.qtgui_const_sink_x_0_0.set_line_label(i, "Data {0}".format(i)) else: self.qtgui_const_sink_x_0_0.set_line_label(i, labels[i]) self.qtgui_const_sink_x_0_0.set_line_width(i, widths[i]) self.qtgui_const_sink_x_0_0.set_line_color(i, colors[i]) self.qtgui_const_sink_x_0_0.set_line_style(i, styles[i]) self.qtgui_const_sink_x_0_0.set_line_marker(i, markers[i]) self.qtgui_const_sink_x_0_0.set_line_alpha(i, alphas[i]) self._qtgui_const_sink_x_0_0_win = sip.wrapinstance(self.qtgui_const_sink_x_0_0.pyqwidget(), Qt.QWidget) self.plots_grid_layout_0.addWidget(self._qtgui_const_sink_x_0_0_win, 0, 1, 1, 1) for r in range(0, 1): self.plots_grid_layout_0.setRowStretch(r, 1) for c in range(1, 2): self.plots_grid_layout_0.setColumnStretch(c, 1) self.qtgui_const_sink_x_0 = qtgui.const_sink_c( 2048, #size "Channel", #name 1 #number of inputs ) self.qtgui_const_sink_x_0.set_update_time(0.10) self.qtgui_const_sink_x_0.set_y_axis(-2, 2) self.qtgui_const_sink_x_0.set_x_axis(-2, 2) self.qtgui_const_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, "") self.qtgui_const_sink_x_0.enable_autoscale(False) self.qtgui_const_sink_x_0.enable_grid(False) self.qtgui_const_sink_x_0.enable_axis_labels(True) labels = ['', '', '', '', '', '', '', '', '', ''] widths = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] colors = ["blue", "red", "red", "red", "red", "red", "red", "red", "red", "red"] styles = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0] markers = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0] alphas = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0] for i in range(1): if len(labels[i]) == 0: self.qtgui_const_sink_x_0.set_line_label(i, "Data {0}".format(i)) else: self.qtgui_const_sink_x_0.set_line_label(i, labels[i]) self.qtgui_const_sink_x_0.set_line_width(i, widths[i]) self.qtgui_const_sink_x_0.set_line_color(i, colors[i]) self.qtgui_const_sink_x_0.set_line_style(i, styles[i]) self.qtgui_const_sink_x_0.set_line_marker(i, markers[i]) self.qtgui_const_sink_x_0.set_line_alpha(i, alphas[i]) self._qtgui_const_sink_x_0_win = sip.wrapinstance(self.qtgui_const_sink_x_0.pyqwidget(), Qt.QWidget) self.plots_grid_layout_0.addWidget(self._qtgui_const_sink_x_0_win, 0, 0, 1, 1) for r in range(0, 1): self.plots_grid_layout_0.setRowStretch(r, 1) for c in range(0, 1): self.plots_grid_layout_0.setColumnStretch(c, 1) self.digital_pfb_clock_sync_xxx_0 = digital.pfb_clock_sync_ccf(sps * 1.001, timing_loop_bw, rrc_taps, nfilts, nfilts/2, 1.5, 2) self.digital_map_bb_0 = digital.map_bb([0, 1, 3, 2]) self.digital_diff_decoder_bb_0 = digital.diff_decoder_bb(4) self.digital_costas_loop_cc_0 = digital.costas_loop_cc(phase_bw, 4, False) self.digital_constellation_modulator_0 = digital.generic_mod( constellation=qam_const, differential=True, samples_per_symbol=sps, pre_diff_code=True, excess_bw=excess_bw, verbose=False, log=False) self.digital_constellation_decoder_cb_0 = digital.constellation_decoder_cb(qam_const) self.digital_cma_equalizer_cc_0 = digital.cma_equalizer_cc(eq_ntaps, eq_mod, eq_gain, 2) self.channels_channel_model_0 = channels.channel_model( noise_voltage=noise_volt, frequency_offset=freq_offset, epsilon=time_offset, taps=chn_taps, noise_seed=0, block_tags=False) self.blocks_unpack_k_bits_bb_0_0 = blocks.unpack_k_bits_bb(2) self.blocks_unpack_k_bits_bb_0 = blocks.unpack_k_bits_bb(2) self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate,True) self.blocks_delay_0 = blocks.delay(gr.sizeof_float*1, 50) self.blocks_char_to_float_0_0 = blocks.char_to_float(1, 1) self.blocks_char_to_float_0 = blocks.char_to_float(1, 1) self.analog_random_source_x_0 = blocks.vector_source_b(list(map(int, numpy.random.randint(0, 256, 1000))), True) ################################################## # Connections ################################################## self.connect((self.analog_random_source_x_0, 0), (self.blocks_unpack_k_bits_bb_0_0, 0)) self.connect((self.analog_random_source_x_0, 0), (self.digital_constellation_modulator_0, 0)) self.connect((self.blocks_char_to_float_0, 0), (self.qtgui_time_sink_x_0, 0)) self.connect((self.blocks_char_to_float_0_0, 0), (self.blocks_delay_0, 0)) self.connect((self.blocks_delay_0, 0), (self.qtgui_time_sink_x_0, 1)) self.connect((self.blocks_throttle_0, 0), (self.channels_channel_model_0, 0)) self.connect((self.blocks_unpack_k_bits_bb_0, 0), (self.blocks_char_to_float_0, 0)) self.connect((self.blocks_unpack_k_bits_bb_0_0, 0), (self.blocks_char_to_float_0_0, 0)) self.connect((self.channels_channel_model_0, 0), (self.digital_pfb_clock_sync_xxx_0, 0)) self.connect((self.channels_channel_model_0, 0), (self.qtgui_const_sink_x_0, 0)) self.connect((self.channels_channel_model_0, 0), (self.qtgui_freq_sink_x_0, 0)) self.connect((self.digital_cma_equalizer_cc_0, 0), (self.digital_costas_loop_cc_0, 0)) self.connect((self.digital_cma_equalizer_cc_0, 0), (self.qtgui_const_sink_x_1, 0)) self.connect((self.digital_constellation_decoder_cb_0, 0), (self.digital_diff_decoder_bb_0, 0)) self.connect((self.digital_constellation_modulator_0, 0), (self.blocks_throttle_0, 0)) self.connect((self.digital_costas_loop_cc_0, 0), (self.digital_constellation_decoder_cb_0, 0)) self.connect((self.digital_costas_loop_cc_0, 0), (self.qtgui_const_sink_x_2, 0)) self.connect((self.digital_diff_decoder_bb_0, 0), (self.digital_map_bb_0, 0)) self.connect((self.digital_map_bb_0, 0), (self.blocks_unpack_k_bits_bb_0, 0)) self.connect((self.digital_pfb_clock_sync_xxx_0, 0), (self.digital_cma_equalizer_cc_0, 0)) self.connect((self.digital_pfb_clock_sync_xxx_0, 0), (self.qtgui_const_sink_x_0_0, 0)) def closeEvent(self, event): self.settings = Qt.QSettings("GNU Radio", "qam") self.settings.setValue("geometry", self.saveGeometry()) event.accept() def get_sps(self): return self.sps def set_sps(self, sps): self.sps = sps self.set_rrc_taps(firdes.root_raised_cosine(self.nfilts, self.nfilts, 1.0/float(self.sps), self.excess_bw, 45*self.nfilts)) def get_nfilts(self): return self.nfilts def set_nfilts(self, nfilts): self.nfilts = nfilts self.set_rrc_taps(firdes.root_raised_cosine(self.nfilts, self.nfilts, 1.0/float(self.sps), self.excess_bw, 45*self.nfilts)) def get_excess_bw(self): return self.excess_bw def set_excess_bw(self, excess_bw): self.excess_bw = excess_bw self.set_rrc_taps(firdes.root_raised_cosine(self.nfilts, self.nfilts, 1.0/float(self.sps), self.excess_bw, 45*self.nfilts)) def get_timing_loop_bw(self): return self.timing_loop_bw def set_timing_loop_bw(self, timing_loop_bw): self.timing_loop_bw = timing_loop_bw self.digital_pfb_clock_sync_xxx_0.set_loop_bandwidth(self.timing_loop_bw) def get_time_offset(self): return self.time_offset def set_time_offset(self, time_offset): self.time_offset = time_offset self.channels_channel_model_0.set_timing_offset(self.time_offset) def get_samp_rate(self): return self.samp_rate def set_samp_rate(self, samp_rate): self.samp_rate = samp_rate self.blocks_throttle_0.set_sample_rate(self.samp_rate) self.qtgui_freq_sink_x_0.set_frequency_range(0, self.samp_rate) self.qtgui_time_sink_x_0.set_samp_rate(self.samp_rate) def get_rrc_taps(self): return self.rrc_taps def set_rrc_taps(self, rrc_taps): self.rrc_taps = rrc_taps self.digital_pfb_clock_sync_xxx_0.update_taps(self.rrc_taps) def get_qam_const(self): return self.qam_const def set_qam_const(self, qam_const): self.qam_const = qam_const def get_phase_bw(self): return self.phase_bw def set_phase_bw(self, phase_bw): self.phase_bw = phase_bw self.digital_costas_loop_cc_0.set_loop_bandwidth(self.phase_bw) def get_noise_volt(self): return self.noise_volt def set_noise_volt(self, noise_volt): self.noise_volt = noise_volt self.channels_channel_model_0.set_noise_voltage(self.noise_volt) def get_freq_offset(self): return self.freq_offset def set_freq_offset(self, freq_offset): self.freq_offset = freq_offset self.channels_channel_model_0.set_frequency_offset(self.freq_offset) def get_eq_ntaps(self): return self.eq_ntaps def set_eq_ntaps(self, eq_ntaps): self.eq_ntaps = eq_ntaps def get_eq_mod(self): return self.eq_mod def set_eq_mod(self, eq_mod): self.eq_mod = eq_mod self.digital_cma_equalizer_cc_0.set_modulus(self.eq_mod) def get_eq_gain(self): return self.eq_gain def set_eq_gain(self, eq_gain): self.eq_gain = eq_gain self.digital_cma_equalizer_cc_0.set_gain(self.eq_gain) def get_const(self): return self.const def set_const(self, const): self.const = const def get_chn_taps(self): return self.chn_taps def set_chn_taps(self, chn_taps): self.chn_taps = chn_taps self.channels_channel_model_0.set_taps(self.chn_taps) def main(top_block_cls=qam, options=None): if gr.enable_realtime_scheduling() != gr.RT_OK: print("Error: failed to enable real-time scheduling.") if StrictVersion("4.5.0") <= StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"): style = gr.prefs().get_string('qtgui', 'style', 'raster') Qt.QApplication.setGraphicsSystem(style) qapp = Qt.QApplication(sys.argv) tb = top_block_cls() tb.start() tb.show() def sig_handler(sig=None, frame=None): Qt.QApplication.quit() signal.signal(signal.SIGINT, sig_handler) signal.signal(signal.SIGTERM, sig_handler) timer = Qt.QTimer() timer.start(500) timer.timeout.connect(lambda: None) def quitting(): tb.stop() tb.wait() qapp.aboutToQuit.connect(quitting) qapp.exec_() if __name__ == '__main__': main()