Peak Detector Demo

Adapted from GNU Radio's own example (gr-blocks/examples/peak_detector2.grc).
Category Blocks
Blocks 13
Connections 8
File blocks/peak_detector2.grc
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Blocks used

Block	Module	Used
Variable	`GNU Radio`	4
File Sink	`GNU Radio`	3
Char To Float	`GNU Radio`	1
Peak Detector2	`GNU Radio`	1
QT GUI Range	`GNU Radio`	1
QT GUI Time Sink	`GNU Radio`	1
Signal Source	`GNU Radio`	1
Throttle	`GNU Radio`	1
Flowgraph source

blocks/peak_detector2.grc
options:
  parameters:
    author: ''
    catch_exceptions: 'True'
    category: Custom
    cmake_opt: ''
    comment: ''
    copyright: ''
    description: Adapted from GNU Radio's own example (gr-blocks/examples/peak_detector2.grc).
    gen_cmake: 'On'
    gen_linking: dynamic
    generate_options: qt_gui
    hier_block_src_path: '.:'
    id: test_peak2
    max_nouts: '0'
    output_language: python
    placement: (0,0)
    qt_qss_theme: ''
    realtime_scheduling: ''
    run: 'True'
    run_command: '{python} -u {filename}'
    run_options: run
    sizing_mode: fixed
    thread_safe_setters: ''
    title: Peak Detector Demo
    window_size: 1280, 1024
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [10, 10]
    rotation: 0
    state: enabled
blocks:
- name: alpha
  id: variable
  parameters:
    comment: ''
    value: '0.001'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [590, 10]
    rotation: 0
    state: enabled
- name: analog_sig_source_x_0
  id: analog_sig_source_x
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    offset: offset
    phase: '0'
    samp_rate: samp_rate
    showports: 'False'
    type: float
    waveform: analog.GR_SAW_WAVE
    frequency: '1000'
    amplitude: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [10, 330]
    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: [960, 340]
    rotation: 0
    state: enabled
- name: blocks_file_sink_0
  id: blocks_file_sink
  parameters:
    affinity: ''
    alias: ''
    append: 'False'
    comment: ''
    file: in.data
    type: float
    unbuffered: 'False'
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [790, 10]
    rotation: 0
    state: disabled
- name: blocks_file_sink_0_0
  id: blocks_file_sink
  parameters:
    affinity: ''
    alias: ''
    append: 'False'
    comment: ''
    file: avg.data
    type: float
    unbuffered: 'False'
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [960, 440]
    rotation: 0
    state: disabled
- name: blocks_file_sink_0_1
  id: blocks_file_sink
  parameters:
    affinity: ''
    alias: ''
    append: 'False'
    comment: ''
    file: flag.data
    type: float
    unbuffered: 'False'
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1280, 330]
    rotation: 0
    state: disabled
- name: blocks_peak_detector2_fb_0
  id: blocks_peak_detector2_fb
  parameters:
    affinity: ''
    alias: ''
    alpha: alpha
    comment: ''
    look_ahead: lookahead
    maxoutbuf: '0'
    minoutbuf: '0'
    threshold_factor_rise: factor
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [650, 340]
    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: float
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [320, 330]
    rotation: 0
    state: enabled
- name: factor
  id: variable
  parameters:
    comment: ''
    value: '0.3'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1030, 10]
    rotation: 0
    state: enabled
- name: lookahead
  id: variable
  parameters:
    comment: ''
    value: int(samp_rate/1e3/1.1)
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1200, 10]
    rotation: 0
    state: enabled
- name: offset
  id: variable_qtgui_range
  parameters:
    comment: ''
    gui_hint: ''
    label: ''
    min_len: '200'
    orient: QtCore.Qt.Horizontal
    rangeType: float
    start: '-1.5'
    step: '0.1'
    stop: '1.5'
    value: '0.1'
    widget: counter_slider
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1370, 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: 'True'
    entags: 'True'
    grid: 'True'
    gui_hint: ''
    label1: Input
    label10: ''
    label2: Peaks
    label3: Average
    label4: ''
    label5: ''
    label6: ''
    label7: ''
    label8: ''
    label9: ''
    legend: 'True'
    marker1: '-1'
    marker10: '-1'
    marker2: '-1'
    marker3: '-1'
    marker4: '-1'
    marker5: '-1'
    marker6: '-1'
    marker7: '-1'
    marker8: '-1'
    marker9: '-1'
    name: '""'
    nconnections: '3'
    size: '512'
    stemplot: 'False'
    style1: '1'
    style10: '1'
    style2: '1'
    style3: '1'
    style4: '1'
    style5: '1'
    style6: '1'
    style7: '1'
    style8: '1'
    style9: '1'
    tr_chan: '1'
    tr_delay: '0'
    tr_level: '0.0'
    tr_mode: qtgui.TRIG_MODE_AUTO
    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: '1.5'
    ymin: '-1.5'
    yunit: '""'
    samp_rate: samp_rate
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1280, 450]
    rotation: 0
    state: enabled
- name: samp_rate
  id: variable
  parameters:
    comment: ''
    value: 32e3
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [10, 230]
    rotation: 0
    state: enabled
connections:
- [analog_sig_source_x_0, '0', blocks_throttle2_0, '0']
- [blocks_char_to_float_0, '0', blocks_file_sink_0_1, '0']
- [blocks_char_to_float_0, '0', qtgui_time_sink_x_0, '1']
- [blocks_peak_detector2_fb_0, '0', blocks_char_to_float_0, '0']
- [blocks_peak_detector2_fb_0, '1', blocks_file_sink_0_0, '0']
- [blocks_peak_detector2_fb_0, '1', qtgui_time_sink_x_0, '2']
- [blocks_throttle2_0, '0', blocks_peak_detector2_fb_0, '0']
- [blocks_throttle2_0, '0', qtgui_time_sink_x_0, '0']
metadata:
  file_format: 1
  grc_version: 3.10.10.0