Constellation Encoder and Decoder

Adapted from GNU Radio's own example (gr-digital/examples/demod/constellation_encode_decode.grc). The random payload is a fixed repeating pattern.
Author Josh Morman
Category Digital
Blocks 13
Connections 8
File digital/constellation_encode_decode.grc
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Blocks used

Block	Module	Used
Variable	`GNU Radio`	4
Char To Float	`GNU Radio`	2
Constellation Decoder	`GNU Radio`	1
Constellation Encoder	`GNU Radio`	1
Constellation Object	`GNU Radio`	1
QT GUI Constellation Sink	`GNU Radio`	1
QT GUI Time Sink	`GNU Radio`	1
Throttle	`GNU Radio`	1
Vector Source	`GNU Radio`	1
Flowgraph source

digital/constellation_encode_decode.grc
options:
  parameters:
    author: Josh Morman
    catch_exceptions: 'True'
    category: '[GRC Hier Blocks]'
    cmake_opt: ''
    comment: ''
    copyright: ''
    description: Adapted from GNU Radio's own example (gr-digital/examples/demod/constellation_encode_decode.grc). The random
      payload is a fixed repeating pattern.
    gen_cmake: 'On'
    gen_linking: dynamic
    generate_options: qt_gui
    hier_block_src_path: '.:'
    id: constellation_encode_decode
    max_nouts: '0'
    output_language: python
    placement: (0,0)
    qt_qss_theme: ''
    realtime_scheduling: ''
    run: 'True'
    run_command: '{python} -u {filename}'
    run_options: prompt
    sizing_mode: fixed
    thread_safe_setters: ''
    title: Constellation Encoder and Decoder
    window_size: (1000,1000)
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [10, 10]
    rotation: 0
    state: enabled
blocks:
- name: blocks_char_to_float_0
  id: blocks_char_to_float
  parameters:
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    comment: ''
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  states:
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    coordinate: [1350, 270]
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- name: blocks_char_to_float_0_0
  id: blocks_char_to_float
  parameters:
    affinity: ''
    alias: ''
    comment: ''
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  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1350, 370]
    rotation: 0
    state: true
- name: blocks_throttle2_0
  id: blocks_throttle2
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    ignoretag: 'True'
    limit: auto
    maximum: '0.1'
    maxoutbuf: '0'
    minoutbuf: '0'
    samples_per_second: samp_rate
    type: byte
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [270, 250]
    rotation: 0
    state: enabled
- name: blocks_vector_source_x_0_0
  id: blocks_vector_source_x
  parameters:
    affinity: ''
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    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    repeat: 'True'
    tags: '[]'
    type: byte
    vector: data
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [10, 260]
    rotation: 0
    state: enabled
- name: constel
  id: variable_constellation
  parameters:
    comment: ''
    const_points: '[1,-1]'
    dims: '1'
    normalization: digital.constellation.AMPLITUDE_NORMALIZATION
    npwr: '1.0'
    precision: '8'
    rot_sym: '2'
    soft_dec_lut: None
    sym_map: '[0,1]'
    type: bpsk
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [590, 10]
    rotation: 0
    state: enabled
- name: data
  id: variable
  parameters:
    comment: ''
    value: '[0, 1, 1, 0, 1, 0, 0, 1] * 125'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [910, 10]
    rotation: 0
    state: enabled
- name: data_size
  id: variable
  parameters:
    comment: ''
    value: '1000'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1170, 10]
    rotation: 0
    state: enabled
- name: digital_constellation_decoder_cb_0
  id: digital_constellation_decoder_cb
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    constellation: constel
    maxoutbuf: '0'
    minoutbuf: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [970, 270]
    rotation: 0
    state: true
- name: digital_constellation_encoder_bc_0
  id: digital_constellation_encoder_bc
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    constellation: constel
    maxoutbuf: '0'
    minoutbuf: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [600, 270]
    rotation: 0
    state: true
- name: mod_order
  id: variable
  parameters:
    comment: ''
    value: '2'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1340, 10]
    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'
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    ymax: '2'
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  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [970, 370]
    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: 'True'
    axislabels: 'True'
    color1: blue
    color10: dark blue
    color2: red
    color3: green
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    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: '2'
    size: '1024'
    stemplot: 'False'
    style1: '1'
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    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: '1'
    ymin: '-1'
    yunit: '""'
    samp_rate: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [90, 530]
    rotation: 0
    state: true
- name: samp_rate
  id: variable
  parameters:
    comment: ''
    value: '32000'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1510, 10]
    rotation: 0
    state: enabled
connections:
- [blocks_char_to_float_0, '0', qtgui_time_sink_x_0, '0']
- [blocks_char_to_float_0_0, '0', qtgui_time_sink_x_0, '1']
- [blocks_throttle2_0, '0', blocks_char_to_float_0, '0']
- [blocks_throttle2_0, '0', digital_constellation_encoder_bc_0, '0']
- [blocks_vector_source_x_0_0, '0', blocks_throttle2_0, '0']
- [digital_constellation_decoder_cb_0, '0', blocks_char_to_float_0_0, '0']
- [digital_constellation_encoder_bc_0, '0', digital_constellation_decoder_cb_0, '0']
- [digital_constellation_encoder_bc_0, '0', qtgui_const_sink_x_0, '0']
metadata:
  file_format: 1
  grc_version: 3.10.10.0