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-rw-r--r--flowgraphs/qam_sim.grc932
1 files changed, 932 insertions, 0 deletions
diff --git a/flowgraphs/qam_sim.grc b/flowgraphs/qam_sim.grc
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--- /dev/null
+++ b/flowgraphs/qam_sim.grc
@@ -0,0 +1,932 @@
+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: qam_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: QAM 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: '[(-0.31622776601683794-0.31622776601683794j), (-0.31622776601683794+0.31622776601683794j),
+ (-0.9486832980505138-0.9486832980505138j), (-0.9486832980505138-0.31622776601683794j)]'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [792, 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, 612.0]
+ 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: qam_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: 16qam
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [472, 356.0]
+ 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: [1088, 1080.0]
+ rotation: 0
+ state: true
+- name: blocks_null_source_0
+ id: blocks_null_source
+ parameters:
+ affinity: ''
+ alias: ''
+ bus_structure_source: '[[0,],]'
+ comment: ''
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ num_outputs: '1'
+ type: byte
+ vlen: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [48, 528.0]
+ 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, 0]'
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ num_inputs: '3'
+ 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: [744, 444.0]
+ 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: '0'
+ 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_constellation_decoder_cb_0
+ id: digital_constellation_decoder_cb
+ parameters:
+ affinity: ''
+ alias: ''
+ comment: ''
+ constellation: qam_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: qam_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: [472, 420.0]
+ 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: [792, 972.0]
+ rotation: 0
+ state: true
+- name: digital_lms_dd_equalizer_cc_0
+ id: digital_lms_dd_equalizer_cc
+ parameters:
+ affinity: ''
+ alias: ''
+ cnst: qam_const
+ comment: ''
+ maxoutbuf: '0'
+ minoutbuf: '0'
+ mu: 5e-3
+ num_taps: '2'
+ sps: '1'
+ states:
+ bus_sink: false
+ bus_source: false
+ bus_structure: null
+ coordinate: [520, 980.0]
+ 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: [248, 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, 612.0]
+ 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: [1032, 988.0]
+ rotation: 0
+ state: enabled
+- 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: '3'
+ 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: [1304, 800.0]
+ 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: [1272, 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: [952, 444.0]
+ 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: [1336, 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_null_source_0, '0', blocks_stream_mux_0, '2']
+- [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_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_lms_dd_equalizer_cc_0, '0', digital_corr_est_cc_0, '0']
+- [digital_lms_dd_equalizer_cc_0, '0', qtgui_const_sink_x_0, '1']
+- [digital_pfb_clock_sync_xxx_0, '0', digital_lms_dd_equalizer_cc_0, '0']
+- [digital_pfb_clock_sync_xxx_0, '0', fadingui_netsink_4, '0']
+- [digital_pfb_clock_sync_xxx_0, '0', qtgui_const_sink_x_0, '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, '2']
+- [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