diff options
Diffstat (limited to 'simulation/QPSK/qpks.py')
| -rwxr-xr-x | simulation/QPSK/qpks.py | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/simulation/QPSK/qpks.py b/simulation/QPSK/qpks.py index e436356..11e7004 100755 --- a/simulation/QPSK/qpks.py +++ b/simulation/QPSK/qpks.py @@ -77,16 +77,16 @@ class qpks(gr.top_block, Qt.QWidget): ################################################## 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), 0.35, 45*nfilts) + self.rrc_taps = rrc_taps = firdes.root_raised_cosine(nfilts, nfilts, 1.0/float(sps), excess_bw, 45*nfilts) self.qpsk_const = qpsk_const = digital.constellation_rect([0.707+0.707j, -0.707+0.707j, -0.707-0.707j, 0.707-0.707j], [0, 1, 3, 2], 4, 2, 2, 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.excess_bw = excess_bw = 350e-3 self.eq_ntaps = eq_ntaps = 15 self.eq_mod = eq_mod = 1 self.eq_gain = eq_gain = .01 @@ -179,14 +179,14 @@ class qpks(gr.top_block, Qt.QWidget): 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(True) + 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 = ['Signal 1', 'Signal 2', 'Signal 3', 'Signal 4', 'Signal 5', + 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] @@ -504,14 +504,21 @@ class qpks(gr.top_block, Qt.QWidget): 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), 0.35, 45*self.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_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), 0.35, 45*self.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 @@ -570,12 +577,6 @@ class qpks(gr.top_block, Qt.QWidget): self.freq_offset = freq_offset self.channels_channel_model_0.set_frequency_offset(self.freq_offset) - def get_excess_bw(self): - return self.excess_bw - - def set_excess_bw(self, excess_bw): - self.excess_bw = excess_bw - def get_eq_ntaps(self): return self.eq_ntaps |