options:
  parameters:
    author: Naoki Pross
    catch_exceptions: 'True'
    category: '[GRC Hier Blocks]'
    cmake_opt: ''
    comment: ''
    copyright: ''
    description: ''
    gen_cmake: 'On'
    gen_linking: dynamic
    generate_options: no_gui
    hier_block_src_path: '.:'
    id: qpsk_nogui
    max_nouts: '0'
    output_language: python
    placement: (0,0)
    qt_qss_theme: ''
    realtime_scheduling: '1'
    run: 'True'
    run_command: '{python} -u {filename}'
    run_options: prompt
    sizing_mode: fixed
    thread_safe_setters: ''
    title: QPSK with IMGUI
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [8, 8]
    rotation: 0
    state: enabled

blocks:
- name: chn_taps
  id: variable
  parameters:
    comment: ''
    value: '[1.0 + 0.0j, ]'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [672, 204.0]
    rotation: 0
    state: true
- name: eq_gain
  id: variable
  parameters:
    comment: ''
    value: '.01'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1376, 420.0]
    rotation: 0
    state: true
- name: eq_mod
  id: variable
  parameters:
    comment: ''
    value: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1376, 352.0]
    rotation: 0
    state: true
- name: eq_ntaps
  id: variable
  parameters:
    comment: ''
    value: '15'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1456, 352.0]
    rotation: 0
    state: true
- name: excess_bw
  id: variable
  parameters:
    comment: ''
    value: 350e-3
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [352, 224.0]
    rotation: 0
    state: true
- name: freq_offset
  id: variable
  parameters:
    comment: ''
    value: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [768, 204.0]
    rotation: 0
    state: true
- name: nfilts
  id: variable
  parameters:
    comment: ''
    value: '32'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1040, 432.0]
    rotation: 0
    state: true
- name: noise_volt
  id: variable
  parameters:
    comment: ''
    value: 100e-6
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [672, 132.0]
    rotation: 0
    state: true
- name: phase_bw
  id: variable
  parameters:
    comment: ''
    value: 2 * 3.141592653589793 / 100
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1680, 380.0]
    rotation: 0
    state: true
- name: qpsk_const
  id: variable_constellation_rect
  parameters:
    comment: ''
    const_points: '[0.707+0.707j, -0.707+0.707j, -0.707-0.707j, 0.707-0.707j]'
    imag_sect: '2'
    precision: '8'
    real_sect: '2'
    rot_sym: '4'
    soft_dec_lut: None
    sym_map: '[0, 1, 3, 2]'
    w_imag_sect: '1'
    w_real_sect: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [256, 396.0]
    rotation: 0
    state: true
- name: rrc_taps
  id: variable
  parameters:
    comment: ''
    value: firdes.root_raised_cosine(nfilts, nfilts, 1.0/float(sps), 0.35, 45*nfilts)
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1120, 432.0]
    rotation: 0
    state: true
- name: samp_rate
  id: variable
  parameters:
    comment: ''
    value: '32000'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [184, 12]
    rotation: 0
    state: enabled
- name: sps
  id: variable
  parameters:
    comment: ''
    value: '4'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [256, 224.0]
    rotation: 0
    state: true
- name: time_offset
  id: variable
  parameters:
    comment: ''
    value: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [768, 132.0]
    rotation: 0
    state: true
- name: timing_loop_bw
  id: variable
  parameters:
    comment: ''
    value: 2 * 3.141592653589793 / 100
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1040, 508.0]
    rotation: 0
    state: true
- name: analog_random_source_x_0
  id: analog_random_source_x
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    max: '256'
    maxoutbuf: '0'
    min: '0'
    minoutbuf: '0'
    num_samps: '1000'
    repeat: 'True'
    type: byte
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [64, 288.0]
    rotation: 0
    state: enabled
- name: blocks_char_to_float_0
  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: [2304, 232.0]
    rotation: 0
    state: true
- name: blocks_null_sink_0
  id: blocks_null_sink
  parameters:
    affinity: ''
    alias: ''
    bus_structure_sink: '[[0,],]'
    comment: ''
    num_inputs: '1'
    type: float
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [2504, 240.0]
    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: [496, 312.0]
    rotation: 0
    state: enabled
- name: blocks_unpack_k_bits_bb_0
  id: blocks_unpack_k_bits_bb
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    k: '2'
    maxoutbuf: '0'
    minoutbuf: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [2224, 392.0]
    rotation: 0
    state: true
- name: channels_channel_model_0
  id: channels_channel_model
  parameters:
    affinity: ''
    alias: ''
    block_tags: 'False'
    comment: ''
    epsilon: time_offset
    freq_offset: freq_offset
    maxoutbuf: '0'
    minoutbuf: '0'
    noise_voltage: noise_volt
    seed: '0'
    taps: chn_taps
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [672, 272.0]
    rotation: 0
    state: enabled
- name: digital_cma_equalizer_cc_0
  id: digital_cma_equalizer_cc
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    modulus: eq_mod
    mu: eq_gain
    num_taps: eq_ntaps
    sps: '2'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1376, 240.0]
    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: [2016, 232.0]
    rotation: 0
    state: true
- name: digital_constellation_modulator_0
  id: digital_constellation_modulator
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    constellation: qpsk_const
    differential: 'True'
    excess_bw: excess_bw
    log: 'False'
    maxoutbuf: '0'
    minoutbuf: '0'
    samples_per_symbol: sps
    truncate: 'False'
    verbose: 'False'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [256, 288.0]
    rotation: 0
    state: enabled
- name: digital_costas_loop_cc_0
  id: digital_costas_loop_cc
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    order: '4'
    use_snr: 'False'
    w: phase_bw
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1680, 240.0]
    rotation: 0
    state: true
- name: digital_diff_decoder_bb_0
  id: digital_diff_decoder_bb
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    modulus: '4'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [2016, 312.0]
    rotation: 180
    state: true
- name: digital_map_bb_0
  id: digital_map_bb
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    map: '[0, 1, 3, 2]'
    maxoutbuf: '0'
    minoutbuf: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [2016, 392.0]
    rotation: 0
    state: true
- name: digital_pfb_clock_sync_xxx_0
  id: digital_pfb_clock_sync_xxx
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    filter_size: nfilts
    init_phase: nfilts/2
    loop_bw: timing_loop_bw
    max_dev: '1.5'
    maxoutbuf: '0'
    minoutbuf: '0'
    osps: '2'
    sps: sps * 1.001
    taps: rrc_taps
    type: ccf
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1040, 264.0]
    rotation: 0
    state: true

connections:
- [analog_random_source_x_0, '0', digital_constellation_modulator_0, '0']
- [blocks_char_to_float_0, '0', blocks_null_sink_0, '0']
- [blocks_throttle_0, '0', channels_channel_model_0, '0']
- [blocks_unpack_k_bits_bb_0, '0', blocks_char_to_float_0, '0']
- [channels_channel_model_0, '0', digital_pfb_clock_sync_xxx_0, '0']
- [digital_cma_equalizer_cc_0, '0', digital_costas_loop_cc_0, '0']
- [digital_constellation_decoder_cb_0, '0', digital_diff_decoder_bb_0, '0']
- [digital_constellation_modulator_0, '0', blocks_throttle_0, '0']
- [digital_costas_loop_cc_0, '0', digital_constellation_decoder_cb_0, '0']
- [digital_diff_decoder_bb_0, '0', digital_map_bb_0, '0']
- [digital_map_bb_0, '0', blocks_unpack_k_bits_bb_0, '0']
- [digital_pfb_clock_sync_xxx_0, '0', digital_cma_equalizer_cc_0, '0']

metadata:
  file_format: 1