options:
  parameters:
    author: J. Gilbert
    catch_exceptions: 'True'
    category: '[GRC Hier Blocks]'
    cmake_opt: ''
    comment: ''
    copyright: J. Gilbert
    description: Use of PDU Lambda block
    gen_cmake: 'On'
    gen_linking: dynamic
    generate_options: qt_gui
    hier_block_src_path: '.:'
    id: pdu_lambda_chirp_demo
    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: PDU Lambda Chirp Demo
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [8, 8]
    rotation: 0
    state: enabled

blocks:
- name: N
  id: variable
  parameters:
    comment: ''
    value: 1024*4
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [432, 12.0]
    rotation: 0
    state: enabled
- name: k
  id: variable_qtgui_range
  parameters:
    comment: ''
    gui_hint: ''
    label: Gain
    min_len: '200'
    orient: QtCore.Qt.Horizontal
    rangeType: float
    start: '0.1'
    step: '0.01'
    stop: '2'
    value: '0.5'
    widget: counter_slider
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [296, 12.0]
    rotation: 0
    state: true
- name: samp_rate
  id: variable
  parameters:
    comment: ''
    value: '1000000'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [208, 12.0]
    rotation: 0
    state: enabled
- name: vec
  id: variable
  parameters:
    comment: ''
    value: pmt.init_f32vector(N, np.arange(N))
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [72, 252.0]
    rotation: 0
    state: enabled
- name: demod_time_sink
  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: 1,1,1,1
    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
    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: msg_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: '5'
    ymin: '-5'
    yunit: '""'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1048, 356.0]
    rotation: 0
    state: enabled
- name: lambda1
  id: pdu_pdu_lambda
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    fn: 'lambda x: k * np.complex64(np.exp(2*np.pi * 1j  * x * x * (0.05 * (np.random.randint(40)-19.5)
      / len(x)) ))'
    key: pmt.intern("key")
    maxoutbuf: '0'
    metadict: Uniform Vector
    minoutbuf: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [376, 356.0]
    rotation: 0
    state: enabled
- name: lambda2
  id: pdu_pdu_lambda
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    fn: 'lambda x: np.float32(np.unwrap(np.angle(x[1:]) - np.angle(x[:-1])))'
    key: pmt.intern("key")
    maxoutbuf: '0'
    metadict: Uniform Vector
    minoutbuf: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [720, 356.0]
    rotation: 0
    state: enabled
- name: note
  id: note
  parameters:
    alias: ''
    comment: 'This flowgraph will generate and transmit random up or down

      chirps from a USRP using PDU Lambda and the PDU to Stream

      blocks. It is not intended to be a practical example, but it can be

      relatively easily modified to transmit meaningful signals.'
    note: Flowgraph Summary
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [592, 12.0]
    rotation: 0
    state: true
- name: pdu2stream
  id: pdu_pdu_to_stream_x
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    depth: '64'
    early_behavior: pdu.EARLY_BURST_APPEND
    maxoutbuf: '0'
    minoutbuf: '0'
    type: complex
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [744, 212.0]
    rotation: 0
    state: true
- name: stream_time_sink
  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: N*2
    srate: samp_rate
    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: 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'
    ylabel: Amplitude
    ymax: '1'
    ymin: '-1'
    yunit: '""'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1048, 252.0]
    rotation: 0
    state: true
- name: strobe
  id: blocks_message_strobe
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    msg: pmt.cons(pmt.PMT_NIL, vec)
    period: '250'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [72, 340.0]
    rotation: 0
    state: true
- name: time_sink
  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: 0,1,1,1
    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
    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: msg_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'
    ylabel: Amplitude
    ymax: '1'
    ymin: '-1'
    yunit: '""'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [368, 260.0]
    rotation: 180
    state: true
- name: uhd_sink
  id: uhd_usrp_sink
  parameters:
    affinity: ''
    alias: ''
    ant0: '"TX/RX"'
    ant1: '"TX/RX"'
    ant10: '"TX/RX"'
    ant11: '"TX/RX"'
    ant12: '"TX/RX"'
    ant13: '"TX/RX"'
    ant14: '"TX/RX"'
    ant15: '"TX/RX"'
    ant16: '"TX/RX"'
    ant17: '"TX/RX"'
    ant18: '"TX/RX"'
    ant19: '"TX/RX"'
    ant2: '"TX/RX"'
    ant20: '"TX/RX"'
    ant21: '"TX/RX"'
    ant22: '"TX/RX"'
    ant23: '"TX/RX"'
    ant24: '"TX/RX"'
    ant25: '"TX/RX"'
    ant26: '"TX/RX"'
    ant27: '"TX/RX"'
    ant28: '"TX/RX"'
    ant29: '"TX/RX"'
    ant3: '"TX/RX"'
    ant30: '"TX/RX"'
    ant31: '"TX/RX"'
    ant4: '"TX/RX"'
    ant5: '"TX/RX"'
    ant6: '"TX/RX"'
    ant7: '"TX/RX"'
    ant8: '"TX/RX"'
    ant9: '"TX/RX"'
    bw0: '0'
    bw1: '0'
    bw10: '0'
    bw11: '0'
    bw12: '0'
    bw13: '0'
    bw14: '0'
    bw15: '0'
    bw16: '0'
    bw17: '0'
    bw18: '0'
    bw19: '0'
    bw2: '0'
    bw20: '0'
    bw21: '0'
    bw22: '0'
    bw23: '0'
    bw24: '0'
    bw25: '0'
    bw26: '0'
    bw27: '0'
    bw28: '0'
    bw29: '0'
    bw3: '0'
    bw30: '0'
    bw31: '0'
    bw4: '0'
    bw5: '0'
    bw6: '0'
    bw7: '0'
    bw8: '0'
    bw9: '0'
    center_freq0: 915e6
    center_freq1: '0'
    center_freq10: '0'
    center_freq11: '0'
    center_freq12: '0'
    center_freq13: '0'
    center_freq14: '0'
    center_freq15: '0'
    center_freq16: '0'
    center_freq17: '0'
    center_freq18: '0'
    center_freq19: '0'
    center_freq2: '0'
    center_freq20: '0'
    center_freq21: '0'
    center_freq22: '0'
    center_freq23: '0'
    center_freq24: '0'
    center_freq25: '0'
    center_freq26: '0'
    center_freq27: '0'
    center_freq28: '0'
    center_freq29: '0'
    center_freq3: '0'
    center_freq30: '0'
    center_freq31: '0'
    center_freq4: '0'
    center_freq5: '0'
    center_freq6: '0'
    center_freq7: '0'
    center_freq8: '0'
    center_freq9: '0'
    clock_rate: 0e0
    clock_source0: ''
    clock_source1: ''
    clock_source2: ''
    clock_source3: ''
    clock_source4: ''
    clock_source5: ''
    clock_source6: ''
    clock_source7: ''
    comment: ''
    dev_addr: '""'
    dev_args: ''
    gain0: '0'
    gain1: '0'
    gain10: '0'
    gain11: '0'
    gain12: '0'
    gain13: '0'
    gain14: '0'
    gain15: '0'
    gain16: '0'
    gain17: '0'
    gain18: '0'
    gain19: '0'
    gain2: '0'
    gain20: '0'
    gain21: '0'
    gain22: '0'
    gain23: '0'
    gain24: '0'
    gain25: '0'
    gain26: '0'
    gain27: '0'
    gain28: '0'
    gain29: '0'
    gain3: '0'
    gain30: '0'
    gain31: '0'
    gain4: '0'
    gain5: '0'
    gain6: '0'
    gain7: '0'
    gain8: '0'
    gain9: '0'
    gain_type0: default
    gain_type1: default
    gain_type10: default
    gain_type11: default
    gain_type12: default
    gain_type13: default
    gain_type14: default
    gain_type15: default
    gain_type16: default
    gain_type17: default
    gain_type18: default
    gain_type19: default
    gain_type2: default
    gain_type20: default
    gain_type21: default
    gain_type22: default
    gain_type23: default
    gain_type24: default
    gain_type25: default
    gain_type26: default
    gain_type27: default
    gain_type28: default
    gain_type29: default
    gain_type3: default
    gain_type30: default
    gain_type31: default
    gain_type4: default
    gain_type5: default
    gain_type6: default
    gain_type7: default
    gain_type8: default
    gain_type9: default
    len_tag_name: '""'
    lo_export0: 'False'
    lo_export1: 'False'
    lo_export10: 'False'
    lo_export11: 'False'
    lo_export12: 'False'
    lo_export13: 'False'
    lo_export14: 'False'
    lo_export15: 'False'
    lo_export16: 'False'
    lo_export17: 'False'
    lo_export18: 'False'
    lo_export19: 'False'
    lo_export2: 'False'
    lo_export20: 'False'
    lo_export21: 'False'
    lo_export22: 'False'
    lo_export23: 'False'
    lo_export24: 'False'
    lo_export25: 'False'
    lo_export26: 'False'
    lo_export27: 'False'
    lo_export28: 'False'
    lo_export29: 'False'
    lo_export3: 'False'
    lo_export30: 'False'
    lo_export31: 'False'
    lo_export4: 'False'
    lo_export5: 'False'
    lo_export6: 'False'
    lo_export7: 'False'
    lo_export8: 'False'
    lo_export9: 'False'
    lo_source0: internal
    lo_source1: internal
    lo_source10: internal
    lo_source11: internal
    lo_source12: internal
    lo_source13: internal
    lo_source14: internal
    lo_source15: internal
    lo_source16: internal
    lo_source17: internal
    lo_source18: internal
    lo_source19: internal
    lo_source2: internal
    lo_source20: internal
    lo_source21: internal
    lo_source22: internal
    lo_source23: internal
    lo_source24: internal
    lo_source25: internal
    lo_source26: internal
    lo_source27: internal
    lo_source28: internal
    lo_source29: internal
    lo_source3: internal
    lo_source30: internal
    lo_source31: internal
    lo_source4: internal
    lo_source5: internal
    lo_source6: internal
    lo_source7: internal
    lo_source8: internal
    lo_source9: internal
    maxoutbuf: '0'
    minoutbuf: '0'
    nchan: '1'
    num_mboards: '1'
    otw: ''
    samp_rate: samp_rate
    sd_spec0: ''
    sd_spec1: ''
    sd_spec2: ''
    sd_spec3: ''
    sd_spec4: ''
    sd_spec5: ''
    sd_spec6: ''
    sd_spec7: ''
    show_lo_controls: 'False'
    start_time: '-1.0'
    stream_args: ''
    stream_chans: '[]'
    sync: sync
    time_source0: ''
    time_source1: ''
    time_source2: ''
    time_source3: ''
    time_source4: ''
    time_source5: ''
    time_source6: ''
    time_source7: ''
    type: fc32
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1048, 116.0]
    rotation: 0
    state: disabled
- name: waterfall
  id: qtgui_waterfall_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'
    axislabels: 'True'
    bw: samp_rate
    color1: '0'
    color10: '0'
    color2: '0'
    color3: '0'
    color4: '0'
    color5: '0'
    color6: '0'
    color7: '0'
    color8: '0'
    color9: '0'
    comment: ''
    fc: '0'
    fftsize: '128'
    freqhalf: 'True'
    grid: 'False'
    gui_hint: 0,0,2,1
    int_max: '10'
    int_min: '-140'
    label1: ''
    label10: ''
    label2: ''
    label3: ''
    label4: ''
    label5: ''
    label6: ''
    label7: ''
    label8: ''
    label9: ''
    legend: 'True'
    maxoutbuf: '0'
    minoutbuf: '0'
    name: '""'
    nconnections: '1'
    showports: 'False'
    type: msg_complex
    update_time: '0.10'
    wintype: window.WIN_BLACKMAN_hARRIS
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [368, 180.0]
    rotation: 180
    state: true

connections:
- [lambda1, pdu, lambda2, pdu]
- [lambda1, pdu, pdu2stream, pdus]
- [lambda1, pdu, time_sink, in]
- [lambda1, pdu, waterfall, in]
- [lambda2, pdu, demod_time_sink, in]
- [pdu2stream, '0', stream_time_sink, '0']
- [pdu2stream, '0', uhd_sink, '0']
- [strobe, strobe, lambda1, pdu]

metadata:
  file_format: 1