diff options
Diffstat (limited to '')
| -rwxr-xr-x | simulation/QAM_Fading/qam_fading.py | 56 |
1 files changed, 6 insertions, 50 deletions
diff --git a/simulation/QAM_Fading/qam_fading.py b/simulation/QAM_Fading/qam_fading.py index c6116f4..56a3847 100755 --- a/simulation/QAM_Fading/qam_fading.py +++ b/simulation/QAM_Fading/qam_fading.py @@ -29,7 +29,6 @@ from gnuradio import blocks import numpy from gnuradio import channels from gnuradio import digital -from gnuradio import filter from gnuradio import gr import sys import signal @@ -88,7 +87,7 @@ class qam_fading(gr.top_block, Qt.QWidget): self.phase_bw = phase_bw = 2 * 3.141592653589793 / 100 self.noise_volt = noise_volt = 0.0001 self.freq_offset = freq_offset = 0 - self.fc = fc = 1 + self.fc = fc = 2.4 self.eq_ntaps = eq_ntaps = 15 self.eq_mod = eq_mod = 1 self.eq_gain = eq_gain = .01 @@ -163,8 +162,8 @@ class qam_fading(gr.top_block, Qt.QWidget): self.params_grid_layout_0.setRowStretch(r, 1) for c in range(0, 1): self.params_grid_layout_0.setColumnStretch(c, 1) - self._fc_range = Range(0, 1000000000, 1, 1, 200) - self._fc_win = RangeWidget(self._fc_range, self.set_fc, 'fc', "counter_slider", int) + self._fc_range = Range(0, 10, 1, 2.4, 200) + self._fc_win = RangeWidget(self._fc_range, self.set_fc, 'fc', "counter_slider", float) self.params_grid_layout_0.addWidget(self._fc_win, 1, 2, 1, 1) for r in range(1, 2): self.params_grid_layout_0.setRowStretch(r, 1) @@ -272,46 +271,6 @@ class qam_fading(gr.top_block, Qt.QWidget): 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_3 = qtgui.const_sink_c( - 1024, #size - "", #name - 1 #number of inputs - ) - self.qtgui_const_sink_x_3.set_update_time(0.10) - self.qtgui_const_sink_x_3.set_y_axis(-2, 2) - self.qtgui_const_sink_x_3.set_x_axis(-2, 2) - self.qtgui_const_sink_x_3.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, "") - self.qtgui_const_sink_x_3.enable_autoscale(False) - self.qtgui_const_sink_x_3.enable_grid(False) - self.qtgui_const_sink_x_3.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_3.set_line_label(i, "Data {0}".format(i)) - else: - self.qtgui_const_sink_x_3.set_line_label(i, labels[i]) - self.qtgui_const_sink_x_3.set_line_width(i, widths[i]) - self.qtgui_const_sink_x_3.set_line_color(i, colors[i]) - self.qtgui_const_sink_x_3.set_line_style(i, styles[i]) - self.qtgui_const_sink_x_3.set_line_marker(i, markers[i]) - self.qtgui_const_sink_x_3.set_line_alpha(i, alphas[i]) - - self._qtgui_const_sink_x_3_win = sip.wrapinstance(self.qtgui_const_sink_x_3.pyqwidget(), Qt.QWidget) - self.top_grid_layout.addWidget(self._qtgui_const_sink_x_3_win) self.qtgui_const_sink_x_2 = qtgui.const_sink_c( 1024, #size "Locked", #name @@ -508,7 +467,7 @@ class qam_fading(gr.top_block, Qt.QWidget): self.digital_constellation_decoder_cb_0 = digital.constellation_decoder_cb(const) self.digital_cma_equalizer_cc_0_0 = digital.cma_equalizer_cc(eq_ntaps, eq_mod, eq_gain, 2) self.digital_cma_equalizer_cc_0 = digital.cma_equalizer_cc(eq_ntaps, eq_mod, eq_gain, 2) - self.channels_selective_fading_model_0 = channels.selective_fading_model( 8, ((4*fc)/(3*10e8))/samp_rate, False, 4, 0, (0,2e-5/samp_rate), (1,0.12), 8 ) + self.channels_selective_fading_model_0 = channels.selective_fading_model( 8, ((2*fc*1e9)/(3*10e8))/samp_rate, False, 4, 0, (0,1.8), (1,0.12), 8 ) self.channels_channel_model_0 = channels.channel_model( noise_voltage=noise_volt, frequency_offset=freq_offset, @@ -555,7 +514,6 @@ class qam_fading(gr.top_block, Qt.QWidget): self.connect((self.digital_constellation_decoder_cb_0, 0), (self.digital_diff_decoder_bb_0, 0)) self.connect((self.digital_constellation_decoder_cb_0_0, 0), (self.digital_diff_decoder_bb_0_0, 0)) self.connect((self.digital_constellation_modulator_0, 0), (self.blocks_throttle_0, 0)) - self.connect((self.digital_constellation_modulator_0, 0), (self.qtgui_const_sink_x_3, 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_costas_loop_cc_0_0, 0), (self.digital_constellation_decoder_cb_0_0, 0)) @@ -623,8 +581,7 @@ class qam_fading(gr.top_block, Qt.QWidget): def set_samp_rate(self, samp_rate): self.samp_rate = samp_rate self.blocks_throttle_0.set_sample_rate(self.samp_rate) - self.blocks_throttle_0_0.set_sample_rate(self.samp_rate) - self.channels_selective_fading_model_0.set_fDTs(((4*self.fc)/(3*10e8))/self.samp_rate) + self.channels_selective_fading_model_0.set_fDTs(((2*self.fc*1e9)/(3*10e8))/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) @@ -635,7 +592,6 @@ class qam_fading(gr.top_block, Qt.QWidget): self.rrc_taps = rrc_taps self.digital_pfb_clock_sync_xxx_0.update_taps(self.rrc_taps) self.digital_pfb_clock_sync_xxx_0_0.update_taps(self.rrc_taps) - self.fir_filter_xxx_0.set_taps(self.rrc_taps) def get_phase_bw(self): return self.phase_bw @@ -664,7 +620,7 @@ class qam_fading(gr.top_block, Qt.QWidget): def set_fc(self, fc): self.fc = fc - self.channels_selective_fading_model_0.set_fDTs(((4*self.fc)/(3*10e8))/self.samp_rate) + self.channels_selective_fading_model_0.set_fDTs(((2*self.fc*1e9)/(3*10e8))/self.samp_rate) def get_eq_ntaps(self): return self.eq_ntaps |