From 75edb689e503769dcb1ab228e4a59ea2e0cf8d9e Mon Sep 17 00:00:00 2001 From: sara Date: Tue, 14 Dec 2021 18:57:29 +0100 Subject: BER block angepasst --- simulation/QAM_Fading/qam_fading.py | 7 +- .../QAM_Fading/qam_fading_frequency_selectiv.grc | 207 +++------------------ 2 files changed, 27 insertions(+), 187 deletions(-) (limited to 'simulation/QAM_Fading') diff --git a/simulation/QAM_Fading/qam_fading.py b/simulation/QAM_Fading/qam_fading.py index 56a3847..cc1bd08 100755 --- a/simulation/QAM_Fading/qam_fading.py +++ b/simulation/QAM_Fading/qam_fading.py @@ -76,7 +76,7 @@ class qam_fading(gr.top_block, Qt.QWidget): ################################################## # Variables ################################################## - self.sps = sps = 2 + 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 @@ -91,8 +91,7 @@ class qam_fading(gr.top_block, Qt.QWidget): self.eq_ntaps = eq_ntaps = 15 self.eq_mod = eq_mod = 1 self.eq_gain = eq_gain = .01 - self.const = const = digital.constellation_calcdist([-1-1j, -1+1j, 1+1j, 1-1j], [0, 1, 3, 2], - 4, 1).base() + self.const = const = digital.constellation_qpsk().base() self.chn_taps = chn_taps = [1.0 + 0.0j, ] ################################################## @@ -467,7 +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, 0, (0,1.8), (1,0.12), 8 ) + 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, diff --git a/simulation/QAM_Fading/qam_fading_frequency_selectiv.grc b/simulation/QAM_Fading/qam_fading_frequency_selectiv.grc index 02948d2..109a74d 100644 --- a/simulation/QAM_Fading/qam_fading_frequency_selectiv.grc +++ b/simulation/QAM_Fading/qam_fading_frequency_selectiv.grc @@ -54,7 +54,7 @@ blocks: rot_sym: '4' soft_dec_lut: None sym_map: '[0, 1, 3, 2]' - type: calcdist + type: qpsk states: bus_sink: false bus_source: false @@ -127,11 +127,11 @@ blocks: label: fc min_len: '200' orient: Qt.Horizontal - rangeType: int + rangeType: float start: '0' step: '1' - stop: '1000000000' - value: '1' + stop: '10' + value: '2.4' widget: counter_slider states: bus_sink: false @@ -243,7 +243,7 @@ blocks: id: variable parameters: comment: '' - value: '2' + value: '4' states: bus_sink: false bus_source: false @@ -411,28 +411,9 @@ blocks: bus_sink: false bus_source: false bus_structure: null - coordinate: [464, 324.0] + coordinate: [480, 356.0] rotation: 0 state: enabled -- name: blocks_throttle_0_0 - id: blocks_throttle - parameters: - affinity: '' - alias: '' - comment: '' - ignoretag: 'True' - maxoutbuf: '0' - minoutbuf: '0' - samples_per_second: samp_rate - type: byte - vlen: '1' - states: - bus_sink: false - bus_source: false - bus_structure: null - coordinate: [240, 204.0] - rotation: 0 - state: bypassed - name: blocks_unpack_k_bits_bb_0 id: blocks_unpack_k_bits_bb parameters: @@ -522,20 +503,20 @@ blocks: coordinate: [648, 316.0] rotation: 0 state: enabled -- name: channels_selective_fading_model2_0 +- name: channels_selective_fading_model2_1 id: channels_selective_fading_model2 parameters: - K: '5.1' + K: '4.0' LOS: 'False' N: '8' affinity: '' alias: '' comment: '' - delay_maxdev: (0.5,0.7) - delay_std: (1e-4,1e-4) - delays: (0,2e-5/samp_rate) - fDTs: ((4*fc)/(3*10e8))/samp_rate - mags: (1,0.12) + 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' @@ -544,7 +525,7 @@ blocks: bus_sink: false bus_source: false bus_structure: null - coordinate: [904, 292.0] + coordinate: [888, 276.0] rotation: 0 state: disabled - name: channels_selective_fading_model_0 @@ -556,18 +537,18 @@ blocks: affinity: '' alias: '' comment: '' - delays: (0,2e-5/samp_rate) - fDTs: ((4*fc)/(3*10e8))/samp_rate + delays: (0,1.8) + fDTs: ((2*fc*1e9)/(3*10e8))/samp_rate mags: (1,0.12) maxoutbuf: '0' minoutbuf: '0' ntaps: '8' - seed: '0' + seed: '21' states: bus_sink: false bus_source: false bus_structure: null - coordinate: [968, 468.0] + coordinate: [976, 404.0] rotation: 0 state: enabled - name: channels_selective_fading_model_2 @@ -684,26 +665,6 @@ blocks: coordinate: [240, 332.0] rotation: 0 state: enabled -- name: digital_constellation_receiver_cb_0 - id: digital_constellation_receiver_cb - parameters: - affinity: '' - alias: '' - comment: '' - constellation: const - fmax: '1' - fmin: '1.5' - loop_bw: timing_loop_bw - maxoutbuf: '0' - minoutbuf: '0' - showports: 'False' - states: - bus_sink: false - bus_source: false - bus_structure: null - coordinate: [1376, -64.0] - rotation: 0 - state: disabled - name: digital_costas_loop_cc_0 id: digital_costas_loop_cc parameters: @@ -850,25 +811,6 @@ blocks: coordinate: [1088, 868.0] rotation: 0 state: true -- name: fir_filter_xxx_0 - id: fir_filter_xxx - parameters: - affinity: '' - alias: '' - comment: '' - decim: '1' - maxoutbuf: '0' - minoutbuf: '0' - samp_delay: '0' - taps: rrc_taps - type: ccc - states: - bus_sink: false - bus_source: false - bus_structure: null - coordinate: [488, 212.0] - rotation: 0 - state: bypassed - name: import_0 id: import parameters: @@ -1318,98 +1260,6 @@ blocks: coordinate: [2188.0, 0] rotation: 90 state: enabled -- name: qtgui_const_sink_x_3 - id: qtgui_const_sink_x - parameters: - affinity: '' - alias: '' - alpha1: '1.0' - alpha10: '1.0' - alpha2: '1.0' - alpha3: '1.0' - alpha4: '1.0' - alpha5: '1.0' - alpha6: '1.0' - alpha7: '1.0' - alpha8: '1.0' - alpha9: '1.0' - autoscale: 'False' - axislabels: 'True' - color1: '"blue"' - color10: '"red"' - color2: '"red"' - color3: '"red"' - color4: '"red"' - color5: '"red"' - color6: '"red"' - color7: '"red"' - color8: '"red"' - color9: '"red"' - comment: '' - grid: 'False' - gui_hint: '' - label1: '' - label10: '' - label2: '' - label3: '' - label4: '' - label5: '' - label6: '' - label7: '' - label8: '' - label9: '' - legend: 'True' - marker1: '0' - marker10: '0' - marker2: '0' - marker3: '0' - marker4: '0' - marker5: '0' - marker6: '0' - marker7: '0' - marker8: '0' - marker9: '0' - name: '""' - nconnections: '1' - size: '1024' - style1: '0' - style10: '0' - style2: '0' - style3: '0' - style4: '0' - style5: '0' - style6: '0' - style7: '0' - style8: '0' - style9: '0' - tr_chan: '0' - tr_level: '0.0' - tr_mode: qtgui.TRIG_MODE_FREE - tr_slope: qtgui.TRIG_SLOPE_POS - tr_tag: '""' - type: complex - update_time: '0.10' - width1: '1' - width10: '1' - width2: '1' - width3: '1' - width4: '1' - width5: '1' - width6: '1' - width7: '1' - width8: '1' - width9: '1' - xmax: '2' - xmin: '-2' - ymax: '2' - ymin: '-2' - states: - bus_sink: false - bus_source: false - bus_structure: null - coordinate: [344, 660.0] - rotation: 0 - state: true - name: qtgui_freq_sink_x_0 id: qtgui_freq_sink_x parameters: @@ -1669,30 +1519,28 @@ blocks: state: true connections: -- [analog_random_source_x_0, '0', blocks_throttle_0_0, '0'] - [analog_random_source_x_0, '0', blocks_unpack_k_bits_bb_0_0, '0'] +- [analog_random_source_x_0, '0', digital_constellation_modulator_0, '0'] - [blocks_char_to_float_0, '0', qtgui_freq_sink_x_2_1, '0'] - [blocks_char_to_float_0, '0', qtgui_time_sink_x_0, '0'] - [blocks_char_to_float_0_0, '0', blocks_delay_0, '0'] - [blocks_char_to_float_0_1, '0', qtgui_freq_sink_x_2_1, '1'] - [blocks_char_to_float_0_1, '0', qtgui_time_sink_x_0, '2'] - [blocks_delay_0, '0', qtgui_time_sink_x_0, '1'] -- [blocks_throttle_0, '0', fir_filter_xxx_0, '0'] -- [blocks_throttle_0_0, '0', digital_constellation_modulator_0, '0'] +- [blocks_throttle_0, '0', channels_channel_model_0, '0'] - [blocks_unpack_k_bits_bb_0, '0', blocks_char_to_float_0, '0'] - [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_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_0, '0', digital_pfb_clock_sync_xxx_0, '0'] -- [channels_selective_fading_model2_0, '0', qtgui_const_sink_x_0, '0'] -- [channels_selective_fading_model2_0, '0', qtgui_freq_sink_x_0, '0'] -- [channels_selective_fading_model_0, '0', digital_constellation_receiver_cb_0, '0'] +- [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'] @@ -1706,12 +1554,6 @@ connections: - [digital_constellation_decoder_cb_0, '0', digital_diff_decoder_bb_0, '0'] - [digital_constellation_decoder_cb_0_0, '0', digital_diff_decoder_bb_0_0, '0'] - [digital_constellation_modulator_0, '0', blocks_throttle_0, '0'] -- [digital_constellation_modulator_0, '0', qtgui_const_sink_x_3, '0'] -- [digital_constellation_receiver_cb_0, '0', digital_diff_decoder_bb_0, '0'] -- [digital_constellation_receiver_cb_0, '4', digital_cma_equalizer_cc_0, '0'] -- [digital_constellation_receiver_cb_0, '4', qtgui_const_sink_x_0_0, '0'] -- [digital_constellation_receiver_cb_0, '4', qtgui_const_sink_x_1, '0'] -- [digital_constellation_receiver_cb_0, '4', qtgui_const_sink_x_2, '0'] - [digital_costas_loop_cc_0, '0', digital_constellation_decoder_cb_0, '0'] - [digital_costas_loop_cc_0, '0', qtgui_const_sink_x_2, '0'] - [digital_costas_loop_cc_0_0, '0', digital_constellation_decoder_cb_0_0, '0'] @@ -1724,7 +1566,6 @@ connections: - [digital_pfb_clock_sync_xxx_0, '0', qtgui_const_sink_x_0_0, '0'] - [digital_pfb_clock_sync_xxx_0_0, '0', digital_cma_equalizer_cc_0_0, '0'] - [digital_pfb_clock_sync_xxx_0_0, '0', qtgui_const_sink_x_0_0, '1'] -- [fir_filter_xxx_0, '0', channels_channel_model_0, '0'] metadata: file_format: 1 -- cgit v1.2.1