aboutsummaryrefslogtreecommitdiffstats
path: root/flowgraphs
diff options
context:
space:
mode:
Diffstat (limited to 'flowgraphs')
-rw-r--r--flowgraphs/qpsk_sim.grc913
-rwxr-xr-xflowgraphs/qpsk_sim.py348
2 files changed, 1261 insertions, 0 deletions
diff --git a/flowgraphs/qpsk_sim.grc b/flowgraphs/qpsk_sim.grc
new file mode 100644
index 0000000..a6afefa
--- /dev/null
+++ b/flowgraphs/qpsk_sim.grc
@@ -0,0 +1,913 @@
+options:
+ parameters:
+ author: Naoki Sean Pross, Sara Cinzia Halter
+ category: '[GRC Hier Blocks]'
+ cmake_opt: ''
+ comment: ''
+ copyright: ''
+ description: ''
+ gen_cmake: 'On'
+ gen_linking: dynamic
+ generate_options: qt_gui
+ hier_block_src_path: '.:'
+ id: qpsk_sim
+ max_nouts: '0'
+ output_language: python
+ placement: (0,0)
+ qt_qss_theme: ''
+ realtime_scheduling: '1'
+ run: 'True'
+ run_command: '{python} -u {filename}'
+ run_options: run
+ sizing_mode: fixed
+ thread_safe_setters: ''
+ title: QPSK Sim
+ window_size: ''
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [24, 12.0]
+ rotation: 0
+ state: enabled
+
+blocks:
+- name: access_code_symbols
+ id: variable
+ parameters:
+ comment: ''
+ value: '[(-0.7071067811865475-0.7071067811865475j), (0.7071067811865475-0.7071067811865475j),
+ (0.7071067811865475+0.7071067811865475j), (0.7071067811865475+0.7071067811865475j),
+ (-0.7071067811865475-0.7071067811865475j), (0.7071067811865475+0.7071067811865475j),
+ (0.7071067811865475-0.7071067811865475j), (0.7071067811865475-0.7071067811865475j)]'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [768, 1092.0]
+ rotation: 0
+ state: true
+- name: carrier_freq
+ id: variable
+ parameters:
+ comment: ''
+ value: 2.4e9
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [472, 572.0]
+ rotation: 0
+ state: true
+- name: excess_bw
+ id: variable
+ parameters:
+ comment: ''
+ value: '0.35'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [336, 1156.0]
+ rotation: 0
+ state: true
+- name: frame
+ id: fadingui_frame_obj
+ parameters:
+ alias: ''
+ comment: ''
+ payload_len: '4096'
+ preamble: '[0xbe, 0xef]'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [48, 532.0]
+ rotation: 0
+ state: disabled
+- name: frame_len
+ id: variable
+ parameters:
+ comment: ''
+ value: len(testvec) +4
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [184, 252.0]
+ rotation: 0
+ state: true
+- name: nfilts
+ id: variable
+ parameters:
+ comment: ''
+ value: '32'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [256, 1156.0]
+ rotation: 0
+ state: true
+- name: qpsk_const
+ id: variable_constellation
+ parameters:
+ comment: ''
+ const_points: '[-1-1j, -1+1j, 1+1j, 1-1j]'
+ dims: '1'
+ precision: '8'
+ rot_sym: '4'
+ soft_dec_lut: None
+ sym_map: '[0, 1, 3, 2]'
+ type: qpsk
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [448, 340.0]
+ rotation: 0
+ state: true
+- name: rrc_taps
+ id: variable
+ parameters:
+ comment: ''
+ value: firdes.root_raised_cosine(nfilts, nfilts, 1.0/float(sps), excess_bw, 45*nfilts)
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [432, 1156.0]
+ rotation: 0
+ state: true
+- name: samp_rate
+ id: variable
+ parameters:
+ comment: ''
+ value: 1e6
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [24, 148.0]
+ rotation: 0
+ state: enabled
+- name: sps
+ id: variable
+ parameters:
+ comment: ''
+ value: '4'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [144, 148.0]
+ rotation: 0
+ state: true
+- name: testvec
+ id: variable
+ parameters:
+ comment: ''
+ value: '[0x1f, 0x35] + [0x12, 0x48] '
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [48, 252.0]
+ rotation: 0
+ state: true
+- name: analog_random_source_x_0
+ id: analog_random_source_x
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ max: '255'
+ maxoutbuf: '0'
+ min: '0'
+ minoutbuf: '0'
+ num_samps: '400'
+ repeat: 'True'
+ type: byte
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [48, 420.0]
+ rotation: 0
+ state: true
+- name: blocks_complex_to_mag_0
+ id: blocks_complex_to_mag
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ vlen: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [1064, 1080.0]
+ rotation: 0
+ state: true
+- name: blocks_repack_bits_bb_0
+ id: blocks_repack_bits_bb
+ parameters:
+ affinity: ''
+ alias: ''
+ align_output: 'False'
+ comment: ''
+ endianness: gr.GR_LSB_FIRST
+ k: '2'
+ l: '8'
+ len_tag_key: '""'
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [768, 1300.0]
+ rotation: 0
+ state: true
+- name: blocks_stream_mux_0
+ id: blocks_stream_mux
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ lengths: '[len(testvec), 4]'
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ num_inputs: '2'
+ type: byte
+ vlen: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [272, 416.0]
+ rotation: 0
+ state: true
+- name: blocks_stream_to_vector_0
+ id: blocks_stream_to_vector
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ num_items: frame_len
+ type: byte
+ vlen: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [992, 1312.0]
+ rotation: 0
+ state: true
+- name: blocks_tagged_stream_align_0
+ id: blocks_tagged_stream_align
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ lengthtagname: frame_start
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ type: byte
+ vlen: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [496, 1308.0]
+ rotation: 0
+ state: true
+- name: blocks_throttle_0
+ id: blocks_throttle
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ ignoretag: 'True'
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ samples_per_second: samp_rate
+ type: complex
+ vlen: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [720, 428.0]
+ rotation: 0
+ state: true
+- name: blocks_vector_source_x_0
+ id: blocks_vector_source_x
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ repeat: 'True'
+ tags: '[]'
+ type: byte
+ vector: testvec
+ vlen: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [48, 324.0]
+ rotation: 0
+ state: true
+- name: channels_channel_model_0
+ id: channels_channel_model
+ parameters:
+ affinity: ''
+ alias: ''
+ block_tags: 'False'
+ comment: ''
+ epsilon: '1.0'
+ freq_offset: 2e-3
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ noise_voltage: 100e-3
+ seed: '243'
+ taps: np.exp(1j * 30 / 180 * np.pi)
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [312, 716.0]
+ rotation: 0
+ state: enabled
+- name: channels_selective_fading_model_0
+ id: channels_selective_fading_model
+ parameters:
+ K: '4.0'
+ LOS: 'False'
+ N: '8'
+ affinity: ''
+ alias: ''
+ comment: ''
+ delays: (0,1.8)
+ fDTs: ((4*carrier_freq)/(3*10e8))/samp_rate
+ mags: (1,0.12)
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ ntaps: '8'
+ seed: '21'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [600, 572.0]
+ rotation: 0
+ state: disabled
+- name: digital_cma_equalizer_cc_0
+ id: digital_cma_equalizer_cc
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ modulus: '1'
+ mu: 2e-3
+ num_taps: '15'
+ sps: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [528, 980.0]
+ rotation: 0
+ state: true
+- name: digital_constellation_decoder_cb_0
+ id: digital_constellation_decoder_cb
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ constellation: qpsk_const
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [256, 1308.0]
+ rotation: 0
+ state: true
+- name: digital_constellation_modulator_0
+ id: digital_constellation_modulator
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ constellation: qpsk_const
+ differential: 'False'
+ excess_bw: excess_bw
+ log: 'False'
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ samples_per_symbol: sps
+ verbose: 'False'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [448, 404.0]
+ rotation: 0
+ state: true
+- name: digital_corr_est_cc_0
+ id: digital_corr_est_cc
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ mark_delay: len(access_code_symbols) // 2
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ sps: '1'
+ symbols: access_code_symbols
+ threshold: '0.9'
+ threshold_method: digital.THRESHOLD_ABSOLUTE
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [768, 972.0]
+ rotation: 0
+ state: true
+- name: digital_pfb_clock_sync_xxx_0
+ id: digital_pfb_clock_sync_xxx
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ filter_size: '32'
+ init_phase: '16'
+ loop_bw: 2 * np.pi / 100
+ max_dev: '1.5'
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ osps: '1'
+ sps: sps
+ taps: rrc_taps
+ type: ccf
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [256, 1004.0]
+ rotation: 0
+ state: true
+- name: fadingui_ber_0
+ id: fadingui_ber
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ vgl: testvec + list(np.zeros(4))
+ vlen: frame_len
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [1184, 1300.0]
+ rotation: 0
+ state: true
+- name: fadingui_datasource_0
+ id: fadingui_datasource
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ fname: ''
+ frame_obj: ''
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [208, 532.0]
+ rotation: 0
+ state: disabled
+- name: fadingui_multipath_fading_0
+ id: fadingui_multipath_fading
+ parameters:
+ affinity: ''
+ alias: ''
+ amplitudes: '[0.12]'
+ comment: ''
+ delays: '[1.8]'
+ los: 'True'
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [648, 740.0]
+ rotation: 0
+ state: enabled
+- name: fadingui_netsink_0
+ id: fadingui_netsink
+ parameters:
+ address: udp://localhost:31415
+ affinity: ''
+ alias: ''
+ comment: ''
+ type: complex
+ veclen: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [704, 316.0]
+ rotation: 0
+ state: disabled
+- name: fadingui_netsink_1
+ id: fadingui_netsink
+ parameters:
+ address: udp://localhost:31415
+ affinity: ''
+ alias: ''
+ comment: ''
+ type: complex
+ veclen: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [768, 916.0]
+ rotation: 0
+ state: disabled
+- name: fadingui_netsink_3
+ id: fadingui_netsink
+ parameters:
+ address: udp://localhost:31415
+ affinity: ''
+ alias: ''
+ comment: ''
+ type: complex
+ veclen: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [1280, 916.0]
+ rotation: 0
+ state: disabled
+- name: fadingui_netsink_4
+ id: fadingui_netsink
+ parameters:
+ address: udp://localhost:31415
+ affinity: ''
+ alias: ''
+ comment: ''
+ type: complex
+ veclen: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [528, 916.0]
+ rotation: 0
+ state: disabled
+- name: fadingui_phasecorrection_0
+ id: fadingui_phasecorrection
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ frame_len: frame_len
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [1008, 988.0]
+ rotation: 0
+ state: true
+- name: import_0
+ id: import
+ parameters:
+ alias: ''
+ comment: ''
+ imports: import numpy as np
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [224, 12.0]
+ rotation: 0
+ state: enabled
+- name: qtgui_const_sink_x_0
+ 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: [1240, 828.0]
+ rotation: 0
+ state: true
+- name: qtgui_time_sink_x_0
+ id: qtgui_time_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: dark blue
+ color2: red
+ color3: green
+ color4: black
+ color5: cyan
+ color6: magenta
+ color7: yellow
+ color8: dark red
+ color9: dark green
+ comment: ''
+ ctrlpanel: 'False'
+ entags: 'True'
+ grid: 'False'
+ gui_hint: ''
+ label1: Signal 1
+ label10: Signal 10
+ label2: Signal 2
+ label3: Signal 3
+ label4: Signal 4
+ label5: Signal 5
+ label6: Signal 6
+ label7: Signal 7
+ label8: Signal 8
+ label9: Signal 9
+ legend: 'True'
+ marker1: '-1'
+ marker10: '-1'
+ marker2: '-1'
+ marker3: '-1'
+ marker4: '-1'
+ marker5: '-1'
+ marker6: '-1'
+ marker7: '-1'
+ marker8: '-1'
+ marker9: '-1'
+ name: '""'
+ nconnections: '1'
+ size: '1024'
+ srate: samp_rate / sps
+ stemplot: 'False'
+ style1: '1'
+ style10: '1'
+ style2: '1'
+ style3: '1'
+ style4: '1'
+ style5: '1'
+ style6: '1'
+ style7: '1'
+ style8: '1'
+ style9: '1'
+ tr_chan: '0'
+ tr_delay: '0'
+ tr_level: '0.0'
+ tr_mode: qtgui.TRIG_MODE_FREE
+ tr_slope: qtgui.TRIG_SLOPE_POS
+ tr_tag: '""'
+ type: float
+ update_time: '0.10'
+ width1: '1'
+ width10: '1'
+ width2: '1'
+ width3: '1'
+ width4: '1'
+ width5: '1'
+ width6: '1'
+ width7: '1'
+ width8: '1'
+ width9: '1'
+ ylabel: Amplitude
+ ymax: '10'
+ ymin: '0'
+ yunit: '""'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [1248, 1060.0]
+ rotation: 0
+ state: true
+- name: virtual_sink_0
+ id: virtual_sink
+ parameters:
+ alias: ''
+ comment: ''
+ stream_id: modulated
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [928, 428.0]
+ rotation: 0
+ state: true
+- name: virtual_sink_1
+ id: virtual_sink
+ parameters:
+ alias: ''
+ comment: ''
+ stream_id: envelope
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [1000, 756.0]
+ rotation: 0
+ state: true
+- name: virtual_sink_2
+ id: virtual_sink
+ parameters:
+ alias: ''
+ comment: ''
+ stream_id: symbols
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [1312, 988.0]
+ rotation: 0
+ state: true
+- name: virtual_source_0
+ id: virtual_source
+ parameters:
+ alias: ''
+ comment: ''
+ stream_id: symbols
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [48, 1308.0]
+ rotation: 0
+ state: true
+- name: virtual_source_1
+ id: virtual_source
+ parameters:
+ alias: ''
+ comment: ''
+ stream_id: envelope
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [48, 1052.0]
+ rotation: 0
+ state: true
+- name: virtual_source_2
+ id: virtual_source
+ parameters:
+ alias: ''
+ comment: ''
+ stream_id: modulated
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [56, 756.0]
+ rotation: 0
+ state: true
+
+connections:
+- [analog_random_source_x_0, '0', blocks_stream_mux_0, '1']
+- [blocks_complex_to_mag_0, '0', qtgui_time_sink_x_0, '0']
+- [blocks_repack_bits_bb_0, '0', blocks_stream_to_vector_0, '0']
+- [blocks_stream_mux_0, '0', digital_constellation_modulator_0, '0']
+- [blocks_stream_to_vector_0, '0', fadingui_ber_0, '0']
+- [blocks_tagged_stream_align_0, '0', blocks_repack_bits_bb_0, '0']
+- [blocks_throttle_0, '0', virtual_sink_0, '0']
+- [blocks_vector_source_x_0, '0', blocks_stream_mux_0, '0']
+- [channels_channel_model_0, '0', channels_selective_fading_model_0, '0']
+- [channels_channel_model_0, '0', fadingui_multipath_fading_0, '0']
+- [channels_selective_fading_model_0, '0', virtual_sink_1, '0']
+- [digital_cma_equalizer_cc_0, '0', digital_corr_est_cc_0, '0']
+- [digital_cma_equalizer_cc_0, '0', fadingui_netsink_1, '0']
+- [digital_constellation_decoder_cb_0, '0', blocks_tagged_stream_align_0, '0']
+- [digital_constellation_modulator_0, '0', blocks_throttle_0, '0']
+- [digital_constellation_modulator_0, '0', fadingui_netsink_0, '0']
+- [digital_corr_est_cc_0, '0', fadingui_phasecorrection_0, '0']
+- [digital_corr_est_cc_0, '1', blocks_complex_to_mag_0, '0']
+- [digital_pfb_clock_sync_xxx_0, '0', digital_cma_equalizer_cc_0, '0']
+- [digital_pfb_clock_sync_xxx_0, '0', fadingui_netsink_4, '0']
+- [fadingui_datasource_0, '0', digital_constellation_modulator_0, '0']
+- [fadingui_multipath_fading_0, '0', virtual_sink_1, '0']
+- [fadingui_phasecorrection_0, '0', fadingui_netsink_3, '0']
+- [fadingui_phasecorrection_0, '0', qtgui_const_sink_x_0, '0']
+- [fadingui_phasecorrection_0, '0', virtual_sink_2, '0']
+- [virtual_source_0, '0', digital_constellation_decoder_cb_0, '0']
+- [virtual_source_1, '0', digital_pfb_clock_sync_xxx_0, '0']
+- [virtual_source_2, '0', channels_channel_model_0, '0']
+
+metadata:
+ file_format: 1
diff --git a/flowgraphs/qpsk_sim.py b/flowgraphs/qpsk_sim.py
new file mode 100755
index 0000000..12a4894
--- /dev/null
+++ b/flowgraphs/qpsk_sim.py
@@ -0,0 +1,348 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+#
+# SPDX-License-Identifier: GPL-3.0
+#
+# GNU Radio Python Flow Graph
+# Title: QPSK Sim
+# Author: Naoki Sean Pross, Sara Cinzia Halter
+# 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
+import fadingui
+import numpy as np
+
+from gnuradio import qtgui
+
+class qpsk_sim(gr.top_block, Qt.QWidget):
+
+ def __init__(self):
+ gr.top_block.__init__(self, "QPSK Sim")
+ Qt.QWidget.__init__(self)
+ self.setWindowTitle("QPSK Sim")
+ 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", "qpsk_sim")
+
+ 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.testvec = testvec = [0x1f, 0x35] + [0x12, 0x48]
+ self.sps = sps = 4
+ self.nfilts = nfilts = 32
+ self.excess_bw = excess_bw = 0.35
+ self.samp_rate = samp_rate = 1e6
+ 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_qpsk().base()
+ self.frame_len = frame_len = len(testvec) +4
+ self.carrier_freq = carrier_freq = 2.4e9
+ self.access_code_symbols = access_code_symbols = [(-0.7071067811865475-0.7071067811865475j), (0.7071067811865475-0.7071067811865475j), (0.7071067811865475+0.7071067811865475j), (0.7071067811865475+0.7071067811865475j), (-0.7071067811865475-0.7071067811865475j), (0.7071067811865475+0.7071067811865475j), (0.7071067811865475-0.7071067811865475j), (0.7071067811865475-0.7071067811865475j)]
+
+ ##################################################
+ # Blocks
+ ##################################################
+ self.qtgui_time_sink_x_0 = qtgui.time_sink_f(
+ 1024, #size
+ samp_rate / sps, #samp_rate
+ "", #name
+ 1 #number of inputs
+ )
+ self.qtgui_time_sink_x_0.set_update_time(0.10)
+ self.qtgui_time_sink_x_0.set_y_axis(0, 10)
+
+ 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 = ['Signal 1', 'Signal 2', '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(1):
+ 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.top_grid_layout.addWidget(self._qtgui_time_sink_x_0_win)
+ self.qtgui_const_sink_x_0 = qtgui.const_sink_c(
+ 1024, #size
+ "", #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.top_grid_layout.addWidget(self._qtgui_const_sink_x_0_win)
+ self.fadingui_phasecorrection_0 = fadingui.phasecorrection(frame_len)
+ self.fadingui_multipath_fading_0 = fadingui.multipath_fading(amplitudes=[0.12], delays=[1.8], los =True)
+ self.fadingui_ber_0 = fadingui.ber(vgl=testvec + list(np.zeros(4)), vlen=frame_len)
+ self.digital_pfb_clock_sync_xxx_0 = digital.pfb_clock_sync_ccf(sps, 2 * np.pi / 100, rrc_taps, 32, 16, 1.5, 1)
+ self.digital_corr_est_cc_0 = digital.corr_est_cc(access_code_symbols, 1, len(access_code_symbols) // 2, 0.9, digital.THRESHOLD_ABSOLUTE)
+ self.digital_constellation_modulator_0 = digital.generic_mod(
+ constellation=qpsk_const,
+ differential=False,
+ 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(qpsk_const)
+ self.digital_cma_equalizer_cc_0 = digital.cma_equalizer_cc(15, 1, 2e-3, 1)
+ self.channels_channel_model_0 = channels.channel_model(
+ noise_voltage=100e-3,
+ frequency_offset=2e-3,
+ epsilon=1.0,
+ taps=[np.exp(1j * 30 / 180 * np.pi)],
+ noise_seed=243,
+ block_tags=False)
+ self.blocks_vector_source_x_0 = blocks.vector_source_b(testvec, True, 1, [])
+ self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate,True)
+ self.blocks_tagged_stream_align_0 = blocks.tagged_stream_align(gr.sizeof_char*1, 'frame_start')
+ self.blocks_stream_to_vector_0 = blocks.stream_to_vector(gr.sizeof_char*1, frame_len)
+ self.blocks_stream_mux_0 = blocks.stream_mux(gr.sizeof_char*1, [len(testvec), 4])
+ self.blocks_repack_bits_bb_0 = blocks.repack_bits_bb(2, 8, "", False, gr.GR_LSB_FIRST)
+ self.blocks_complex_to_mag_0 = blocks.complex_to_mag(1)
+ self.analog_random_source_x_0 = blocks.vector_source_b(list(map(int, numpy.random.randint(0, 255, 400))), True)
+
+
+
+ ##################################################
+ # Connections
+ ##################################################
+ self.connect((self.analog_random_source_x_0, 0), (self.blocks_stream_mux_0, 1))
+ self.connect((self.blocks_complex_to_mag_0, 0), (self.qtgui_time_sink_x_0, 0))
+ self.connect((self.blocks_repack_bits_bb_0, 0), (self.blocks_stream_to_vector_0, 0))
+ self.connect((self.blocks_stream_mux_0, 0), (self.digital_constellation_modulator_0, 0))
+ self.connect((self.blocks_stream_to_vector_0, 0), (self.fadingui_ber_0, 0))
+ self.connect((self.blocks_tagged_stream_align_0, 0), (self.blocks_repack_bits_bb_0, 0))
+ self.connect((self.blocks_throttle_0, 0), (self.channels_channel_model_0, 0))
+ self.connect((self.blocks_vector_source_x_0, 0), (self.blocks_stream_mux_0, 0))
+ self.connect((self.channels_channel_model_0, 0), (self.fadingui_multipath_fading_0, 0))
+ self.connect((self.digital_cma_equalizer_cc_0, 0), (self.digital_corr_est_cc_0, 0))
+ self.connect((self.digital_constellation_decoder_cb_0, 0), (self.blocks_tagged_stream_align_0, 0))
+ self.connect((self.digital_constellation_modulator_0, 0), (self.blocks_throttle_0, 0))
+ self.connect((self.digital_corr_est_cc_0, 1), (self.blocks_complex_to_mag_0, 0))
+ self.connect((self.digital_corr_est_cc_0, 0), (self.fadingui_phasecorrection_0, 0))
+ self.connect((self.digital_pfb_clock_sync_xxx_0, 0), (self.digital_cma_equalizer_cc_0, 0))
+ self.connect((self.fadingui_multipath_fading_0, 0), (self.digital_pfb_clock_sync_xxx_0, 0))
+ self.connect((self.fadingui_phasecorrection_0, 0), (self.digital_constellation_decoder_cb_0, 0))
+ self.connect((self.fadingui_phasecorrection_0, 0), (self.qtgui_const_sink_x_0, 0))
+
+
+ def closeEvent(self, event):
+ self.settings = Qt.QSettings("GNU Radio", "qpsk_sim")
+ self.settings.setValue("geometry", self.saveGeometry())
+ event.accept()
+
+ def get_testvec(self):
+ return self.testvec
+
+ def set_testvec(self, testvec):
+ self.testvec = testvec
+ self.set_frame_len(len(self.testvec) +4)
+ self.blocks_vector_source_x_0.set_data(self.testvec, [])
+
+ 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))
+ self.qtgui_time_sink_x_0.set_samp_rate(self.samp_rate / self.sps)
+
+ 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_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_time_sink_x_0.set_samp_rate(self.samp_rate / self.sps)
+
+ 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_qpsk_const(self):
+ return self.qpsk_const
+
+ def set_qpsk_const(self, qpsk_const):
+ self.qpsk_const = qpsk_const
+
+ def get_frame_len(self):
+ return self.frame_len
+
+ def set_frame_len(self, frame_len):
+ self.frame_len = frame_len
+
+ def get_carrier_freq(self):
+ return self.carrier_freq
+
+ def set_carrier_freq(self, carrier_freq):
+ self.carrier_freq = carrier_freq
+
+ def get_access_code_symbols(self):
+ return self.access_code_symbols
+
+ def set_access_code_symbols(self, access_code_symbols):
+ self.access_code_symbols = access_code_symbols
+ self.digital_corr_est_cc_0.set_mark_delay(len(self.access_code_symbols) // 2)
+
+
+
+
+
+def main(top_block_cls=qpsk_sim, 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()