IEEE 802.15.4 QPSK Phase Loopback

options:
    parameters:
        author: Bastian Bloessl
        comment: ''
        copyright: ''
        description: Maps all four QPSK symbol pairs to phase and recovers their I/Q values with gr-ieee802-15-4.
        generate_options: qt_gui
        id: IEEE_802_15_4_QPSK_Phase_Loopback
        title: IEEE 802.15.4 QPSK Phase Loopback
    states:
        coordinate: [10, 10]
        rotation: 0
        state: enabled
blocks:
-   name: symbol_rate
    id: variable
    parameters:
        comment: ''
        value: '32000'
    states:
        coordinate: [600, 10]
        rotation: 0
        state: enabled
-   name: explanation
    id: note
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        note: The mapper converts every I/Q pair to a phase in radians; the demapper recovers the original -1/+1 streams.
    states:
        coordinate: [780, 10]
        rotation: 0
        state: enabled
-   name: i_symbols
    id: blocks_vector_source_x
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        maxoutbuf: '0'
        minoutbuf: '0'
        repeat: 'True'
        tags: '[]'
        type: int
        vector: '[-1, -1, 1, 1]'
        vlen: '1'
    states:
        coordinate: [10, 150]
        rotation: 0
        state: enabled
-   name: pace
    id: blocks_throttle2
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        ignoretag: 'True'
        limit: time
        maximum: '0.1'
        maxoutbuf: '0'
        minoutbuf: '0'
        samples_per_second: symbol_rate
        type: float
        vlen: '1'
    states:
        coordinate: [570, 150]
        rotation: 0
        state: enabled
-   name: phase_and_symbols
    id: qtgui_time_sink_x
    parameters:
        affinity: ''
        alias: ''
        alpha1: '1'
        alpha10: '1'
        alpha2: '1'
        alpha3: '1'
        alpha4: '1'
        alpha5: '1'
        alpha6: '1'
        alpha7: '1'
        alpha8: '1'
        alpha9: '1'
        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'
        grid: 'True'
        label1: Phase (radians)
        label10: Signal 10
        label2: Recovered I
        label3: Recovered Q
        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: QPSK phase and recovered symbols
        nconnections: '3'
        samp_rate: symbol_rate
        size: '256'
        stemplot: 'True'
        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'
        tr_mode: qtgui.TRIG_MODE_FREE
        tr_slope: qtgui.TRIG_SLOPE_POS
        tr_tag: ''
        type: float
        update_time: '0.1'
        width1: '1'
        width10: '1'
        width2: '1'
        width3: '1'
        width4: '1'
        width5: '1'
        width6: '1'
        width7: '1'
        width8: '1'
        width9: '1'
        ylabel: Value
        ymax: '3.5'
        ymin: '-3.5'
        yunit: ''
    states:
        coordinate: [1450, 170]
        rotation: 0
        state: enabled
-   name: phase_demapper
    id: ieee802_15_4_qpsk_demapper_fi
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        maxoutbuf: '0'
        minoutbuf: '0'
    states:
        coordinate: [900, 150]
        rotation: 0
        state: enabled
-   name: phase_mapper
    id: ieee802_15_4_qpsk_mapper_if
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        maxoutbuf: '0'
        minoutbuf: '0'
    states:
        coordinate: [310, 150]
        rotation: 0
        state: enabled
-   name: q_symbols
    id: blocks_vector_source_x
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        maxoutbuf: '0'
        minoutbuf: '0'
        repeat: 'True'
        tags: '[]'
        type: int
        vector: '[-1, 1, -1, 1]'
        vlen: '1'
    states:
        coordinate: [10, 270]
        rotation: 0
        state: enabled
-   name: recovered_i
    id: blocks_int_to_float
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        maxoutbuf: '0'
        minoutbuf: '0'
        scale: '1'
        vlen: '1'
    states:
        coordinate: [1200, 160]
        rotation: 0
        state: enabled
-   name: recovered_q
    id: blocks_int_to_float
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        maxoutbuf: '0'
        minoutbuf: '0'
        scale: '1'
        vlen: '1'
    states:
        coordinate: [1200, 260]
        rotation: 0
        state: enabled
-   name: wasm_gui_layout_0
    id: wasm_gui_layout
    parameters:
        affinity: ''
        alias: ''
        columns: '12'
        comment: ''
        layout: '{}'
        row_height: '60'
    states:
        coordinate: [310, 10]
        rotation: 0
        state: enabled
connections:
- [i_symbols, '0', phase_mapper, '0']
- [pace, '0', phase_and_symbols, '0']
- [pace, '0', phase_demapper, '0']
- [phase_demapper, '0', recovered_i, '0']
- [phase_demapper, '1', recovered_q, '0']
- [phase_mapper, '0', pace, '0']
- [q_symbols, '0', phase_mapper, '1']
- [recovered_i, '0', phase_and_symbols, '1']
- [recovered_q, '0', phase_and_symbols, '2']
metadata:
    file_format: 1
    grc_version: 3.11.0.0