Block Interleaver Example

Adapted from GNU Radio's own example (gr-blocks/examples/block_interleaver.grc). The numpy-built index permutation is inlined as a literal.
Author Johannes Demel
Category Blocks
Blocks 13
Connections 12
File blocks/block_interleaver.grc
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Blocks used

Block	Module	Used
Block interleaver	`GNU Radio`	3
Char To Float	`GNU Radio`	3
Variable	`GNU Radio`	2
Packed to Unpacked	`GNU Radio`	1
QT GUI Time Sink	`GNU Radio`	1
Random Source	`GNU Radio`	1
Throttle	`GNU Radio`	1
Unpacked to Packed	`GNU Radio`	1
Flowgraph source

blocks/block_interleaver.grc
options:
  parameters:
    author: Johannes Demel
    catch_exceptions: 'True'
    category: '[GRC Hier Blocks]'
    cmake_opt: ''
    comment: ''
    copyright: ''
    description: Adapted from GNU Radio's own example (gr-blocks/examples/block_interleaver.grc). The numpy-built index permutation
      is inlined as a literal.
    gen_cmake: 'On'
    gen_linking: dynamic
    generate_options: qt_gui
    hier_block_src_path: '.:'
    id: blockinterleaver
    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: Block Interleaver Example
    window_size: (1000,1000)
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [10, 10]
    rotation: 0
    state: enabled
blocks:
- name: analog_random_source_bits
  id: analog_random_source_x
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    max: '2'
    maxoutbuf: '0'
    min: '0'
    minoutbuf: '0'
    num_samps: '1000'
    repeat: 'True'
    type: byte
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [10, 130]
    rotation: 0
    state: true
- name: blocks_blockinterleaver_bb
  id: blocks_blockinterleaver_xx
  parameters:
    affinity: ''
    alias: ''
    comment: unpacked bits interleaver.
    interleaver_indices: interleaver_indices
    interleaver_mode: interleave
    is_packed: 'False'
    maxoutbuf: '0'
    minoutbuf: '0'
    type: byte
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [620, 140]
    rotation: 0
    state: true
- name: blocks_blockinterleaver_bb_packed
  id: blocks_blockinterleaver_xx
  parameters:
    affinity: ''
    alias: ''
    comment: Packed (de)interleaver for bit input only.
    interleaver_indices: interleaver_indices
    interleaver_mode: deinterleave
    is_packed: 'True'
    maxoutbuf: '0'
    minoutbuf: '0'
    type: byte
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1300, 140]
    rotation: 0
    state: enabled
- name: blocks_blockinterleaver_ff
  id: blocks_blockinterleaver_xx
  parameters:
    affinity: ''
    alias: ''
    comment: Float deinterleaver with derived de-interleaver indices.
    interleaver_indices: interleaver_indices
    interleaver_mode: deinterleave
    is_packed: 'True'
    maxoutbuf: '0'
    minoutbuf: '0'
    type: float
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [410, 490]
    rotation: 0
    state: true
- name: blocks_char_to_float_bb_deinterleaved
  id: blocks_char_to_float
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    scale: '1'
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [410, 390]
    rotation: 0
    state: enabled
- name: blocks_char_to_float_ff_interleaved
  id: blocks_char_to_float
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    scale: '1'
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [80, 390]
    rotation: 0
    state: true
- name: blocks_char_to_float_source
  id: blocks_char_to_float
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    scale: '1'
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [410, 290]
    rotation: 0
    state: true
- name: blocks_packed_to_unpacked_deinterleaved
  id: blocks_packed_to_unpacked_xx
  parameters:
    affinity: ''
    alias: ''
    bits_per_chunk: '1'
    comment: ''
    endianness: gr.GR_MSB_FIRST
    maxoutbuf: '0'
    minoutbuf: '0'
    num_ports: '1'
    type: byte
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [80, 290]
    rotation: 0
    state: enabled
- 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: [290, 130]
    rotation: 0
    state: enabled
- name: blocks_unpacked_to_packed_interleaved
  id: blocks_unpacked_to_packed_xx
  parameters:
    affinity: ''
    alias: ''
    bits_per_chunk: '1'
    comment: ''
    endianness: gr.GR_MSB_FIRST
    maxoutbuf: '0'
    minoutbuf: '0'
    num_ports: '1'
    type: byte
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [970, 150]
    rotation: 0
    state: true
- name: interleaver_indices
  id: variable
  parameters:
    comment: 'Example interleaver indices.

      e.g. `np.random.permutation(64)`.'
    value: '[0, 16, 32, 48, 1, 17, 33, 49, 2, 18, 34, 50, 3, 19, 35, 51, 4, 20, 36, 52, 5, 21, 37, 53, 6, 22, 38, 54, 7, 23,
      39, 55, 8, 24, 40, 56, 9, 25, 41, 57, 10, 26, 42, 58, 11, 27, 43, 59, 12, 28, 44, 60, 13, 29, 45, 61, 14, 30, 46, 62,
      15, 31, 47, 63]'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [580, 10]
    rotation: 0
    state: enabled
- 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: 'True'
    gui_hint: ''
    label1: source
    label10: Signal 10
    label2: after packed deinterleaver
    label3: after float deinterleaver
    label4: Signal 4
    label5: Signal 5
    label6: Signal 6
    label7: Signal 7
    label8: Signal 8
    label9: Signal 9
    legend: 'True'
    marker1: '0'
    marker10: '-1'
    marker2: '7'
    marker3: '-1'
    marker4: '-1'
    marker5: '-1'
    marker6: '-1'
    marker7: '-1'
    marker8: '-1'
    marker9: '-1'
    name: '"Random bits and deinterleaved streams"'
    nconnections: '3'
    size: '128'
    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: Bit Level
    ymax: '1.1'
    ymin: '-0.1'
    yunit: '"bit"'
    samp_rate: samp_rate
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [770, 290]
    rotation: 0
    state: true
- name: samp_rate
  id: variable
  parameters:
    comment: ''
    value: '32000'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [850, 10]
    rotation: 0
    state: enabled
connections:
- [analog_random_source_bits, '0', blocks_throttle2_0, '0']
- [blocks_blockinterleaver_bb, '0', blocks_char_to_float_ff_interleaved, '0']
- [blocks_blockinterleaver_bb, '0', blocks_unpacked_to_packed_interleaved, '0']
- [blocks_blockinterleaver_bb_packed, '0', blocks_packed_to_unpacked_deinterleaved, '0']
- [blocks_blockinterleaver_ff, '0', qtgui_time_sink_x_0, '2']
- [blocks_char_to_float_bb_deinterleaved, '0', qtgui_time_sink_x_0, '1']
- [blocks_char_to_float_ff_interleaved, '0', blocks_blockinterleaver_ff, '0']
- [blocks_char_to_float_source, '0', qtgui_time_sink_x_0, '0']
- [blocks_packed_to_unpacked_deinterleaved, '0', blocks_char_to_float_bb_deinterleaved, '0']
- [blocks_throttle2_0, '0', blocks_blockinterleaver_bb, '0']
- [blocks_throttle2_0, '0', blocks_char_to_float_source, '0']
- [blocks_unpacked_to_packed_interleaved, '0', blocks_blockinterleaver_bb_packed, '0']
metadata:
  file_format: 1
  grc_version: 3.10.10.0