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-rwxr-xr-xsimulation/QAM_Fading/qam_fading.py61
-rw-r--r--simulation/QAM_Fading/qam_fading_frequency_selectiv.grc70
2 files changed, 33 insertions, 98 deletions
diff --git a/simulation/QAM_Fading/qam_fading.py b/simulation/QAM_Fading/qam_fading.py
index cc1bd08..ea8917c 100755
--- a/simulation/QAM_Fading/qam_fading.py
+++ b/simulation/QAM_Fading/qam_fading.py
@@ -116,13 +116,6 @@ class qam_fading(gr.top_block, Qt.QWidget):
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)
@@ -147,20 +140,6 @@ class qam_fading(gr.top_block, Qt.QWidget):
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._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)
@@ -175,6 +154,13 @@ class qam_fading(gr.top_block, Qt.QWidget):
self.params_grid_layout_1.setRowStretch(r, 1)
for c in range(0, 1):
self.params_grid_layout_1.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.qtgui_time_sink_x_0 = qtgui.time_sink_f(
1024, #size
samp_rate, #samp_rate
@@ -446,6 +432,20 @@ class qam_fading(gr.top_block, Qt.QWidget):
self.plots_grid_layout_0.setRowStretch(r, 1)
for c in range(0, 1):
self.plots_grid_layout_0.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.digital_pfb_clock_sync_xxx_0_0 = digital.pfb_clock_sync_ccf(sps , timing_loop_bw, rrc_taps, nfilts, nfilts/2, 1.5, 1)
self.digital_pfb_clock_sync_xxx_0 = digital.pfb_clock_sync_ccf(sps , timing_loop_bw, rrc_taps, nfilts, nfilts/2, 1.5, 1)
self.digital_map_bb_0_0 = digital.map_bb([0, 1, 3, 2])
@@ -466,14 +466,7 @@ 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, ((2*fc*1e9)/(3*10e8))/samp_rate, False, 4, 21, (0,1.8), (1,0.12), 8 )
- 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.channels_selective_fading_model_0 = channels.selective_fading_model( 8, 70/samp_rate, False, 4, 0, (0,0.05e-6/samp_rate,0.12e-6/samp_rate,0.2e-6/samp_rate,0.23e-6/samp_rate,0.5e-6/samp_rate,1.6e-6/samp_rate,2.3e-6/samp_rate,5e-6/samp_rate), (0.7943282347242815,0.7943282347242815,0.7943282347242815,1,1,1,0.5011872336272722,0.31622776601683794,0.19952623149688797), 9 )
self.blocks_unpack_k_bits_bb_0_1 = blocks.unpack_k_bits_bb(2)
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)
@@ -495,14 +488,13 @@ class qam_fading(gr.top_block, Qt.QWidget):
self.connect((self.blocks_char_to_float_0_0, 0), (self.blocks_delay_0, 0))
self.connect((self.blocks_char_to_float_0_1, 0), (self.qtgui_time_sink_x_0, 2))
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_throttle_0, 0), (self.digital_pfb_clock_sync_xxx_0_0, 0))
+ self.connect((self.blocks_throttle_0, 0), (self.qtgui_const_sink_x_0, 1))
+ self.connect((self.blocks_throttle_0, 0), (self.qtgui_freq_sink_x_0, 1))
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.blocks_unpack_k_bits_bb_0_1, 0), (self.blocks_char_to_float_0_1, 0))
self.connect((self.channels_channel_model_0, 0), (self.channels_selective_fading_model_0, 0))
- self.connect((self.channels_channel_model_0, 0), (self.digital_pfb_clock_sync_xxx_0_0, 0))
- self.connect((self.channels_channel_model_0, 0), (self.qtgui_const_sink_x_0, 1))
- self.connect((self.channels_channel_model_0, 0), (self.qtgui_freq_sink_x_0, 1))
self.connect((self.channels_selective_fading_model_0, 0), (self.digital_pfb_clock_sync_xxx_0, 0))
self.connect((self.channels_selective_fading_model_0, 0), (self.qtgui_const_sink_x_0, 0))
self.connect((self.channels_selective_fading_model_0, 0), (self.qtgui_freq_sink_x_0, 0))
@@ -580,7 +572,7 @@ 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.channels_selective_fading_model_0.set_fDTs(((2*self.fc*1e9)/(3*10e8))/self.samp_rate)
+ self.channels_selective_fading_model_0.set_fDTs(70/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)
@@ -619,7 +611,6 @@ class qam_fading(gr.top_block, Qt.QWidget):
def set_fc(self, fc):
self.fc = fc
- 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
diff --git a/simulation/QAM_Fading/qam_fading_frequency_selectiv.grc b/simulation/QAM_Fading/qam_fading_frequency_selectiv.grc
index 109a74d..6ee63b3 100644
--- a/simulation/QAM_Fading/qam_fading_frequency_selectiv.grc
+++ b/simulation/QAM_Fading/qam_fading_frequency_selectiv.grc
@@ -502,32 +502,7 @@ blocks:
bus_structure: null
coordinate: [648, 316.0]
rotation: 0
- state: enabled
-- name: channels_selective_fading_model2_1
- id: channels_selective_fading_model2
- parameters:
- K: '4.0'
- LOS: 'False'
- N: '8'
- affinity: ''
- alias: ''
- comment: ''
- delay_maxdev: (0.5,0.7,0.9)
- delay_std: (1e-4,1e-4,1e-4)
- delays: (1.0,1.9,2.7)
- fDTs: 0.2/samp_rate
- mags: (1,0.95,0.8)
- maxoutbuf: '0'
- minoutbuf: '0'
- ntaps: '8'
- seed: '0'
- states:
- bus_sink: false
- bus_source: false
- bus_structure: null
- coordinate: [888, 276.0]
- rotation: 0
- state: disabled
+ state: bypassed
- name: channels_selective_fading_model_0
id: channels_selective_fading_model
parameters:
@@ -537,43 +512,20 @@ blocks:
affinity: ''
alias: ''
comment: ''
- delays: (0,1.8)
- fDTs: ((2*fc*1e9)/(3*10e8))/samp_rate
- mags: (1,0.12)
+ delays: (0,0.05e-6/samp_rate,0.12e-6/samp_rate,0.2e-6/samp_rate,0.23e-6/samp_rate,0.5e-6/samp_rate,1.6e-6/samp_rate,2.3e-6/samp_rate,5e-6/samp_rate)
+ fDTs: 70/samp_rate
+ mags: (0.7943282347242815,0.7943282347242815,0.7943282347242815,1,1,1,0.5011872336272722,0.31622776601683794,0.19952623149688797)
maxoutbuf: '0'
minoutbuf: '0'
- ntaps: '8'
- seed: '21'
- states:
- bus_sink: false
- bus_source: false
- bus_structure: null
- coordinate: [976, 404.0]
- rotation: 0
- state: enabled
-- name: channels_selective_fading_model_2
- id: channels_selective_fading_model
- parameters:
- K: '4.0'
- LOS: 'False'
- N: '30'
- affinity: ''
- alias: ''
- comment: ''
- delays: (0.0,0.1,1.3)
- fDTs: '0'
- mags: (1,0.99,0.97)
- maxoutbuf: '0'
- minoutbuf: '0'
- ntaps: '8'
+ ntaps: '9'
seed: '0'
states:
bus_sink: false
bus_source: false
bus_structure: null
- coordinate: [928, 140.0]
+ coordinate: [960, 300.0]
rotation: 0
- state: disabled
+ state: enabled
- name: digital_cma_equalizer_cc_0
id: digital_cma_equalizer_cc
parameters:
@@ -1532,21 +1484,13 @@ connections:
- [blocks_unpack_k_bits_bb_0_0, '0', blocks_char_to_float_0_0, '0']
- [blocks_unpack_k_bits_bb_0_1, '0', blocks_char_to_float_0_1, '0']
- [blocks_vector_source_x_0, '0', digital_constellation_modulator_0, '0']
-- [channels_channel_model_0, '0', channels_selective_fading_model2_1, '0']
- [channels_channel_model_0, '0', channels_selective_fading_model_0, '0']
-- [channels_channel_model_0, '0', channels_selective_fading_model_2, '0']
- [channels_channel_model_0, '0', digital_pfb_clock_sync_xxx_0_0, '0']
- [channels_channel_model_0, '0', qtgui_const_sink_x_0, '1']
- [channels_channel_model_0, '0', qtgui_freq_sink_x_0, '1']
-- [channels_selective_fading_model2_1, '0', digital_pfb_clock_sync_xxx_0, '0']
-- [channels_selective_fading_model2_1, '0', qtgui_const_sink_x_0, '0']
-- [channels_selective_fading_model2_1, '0', qtgui_freq_sink_x_0, '0']
- [channels_selective_fading_model_0, '0', digital_pfb_clock_sync_xxx_0, '0']
- [channels_selective_fading_model_0, '0', qtgui_const_sink_x_0, '0']
- [channels_selective_fading_model_0, '0', qtgui_freq_sink_x_0, '0']
-- [channels_selective_fading_model_2, '0', digital_pfb_clock_sync_xxx_0, '0']
-- [channels_selective_fading_model_2, '0', qtgui_const_sink_x_0, '0']
-- [channels_selective_fading_model_2, '0', qtgui_freq_sink_x_0, '0']
- [digital_cma_equalizer_cc_0, '0', digital_costas_loop_cc_0, '0']
- [digital_cma_equalizer_cc_0, '0', qtgui_const_sink_x_1, '0']
- [digital_cma_equalizer_cc_0_0, '0', digital_costas_loop_cc_0_0, '0']