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IWR1642BOOST: Range along the azimuth inconsistent with angle of view

Expert 1545 points

Replies: 3

Views: 97

Part Number: IWR1642BOOST

I have the IWR1642BOOST board on a table which is 1m high, please see the image for the wall locations. The azimuth field of view is 60 degree for the board, when I run the demo visualizer, in the XY plot, I don't see any point detections beyond the green spot in the image which is around 90cm, I expect to detect  atleast upto 3m in the azimuth axis. I have configured to have maximum range of 15m  PLease advise what needs to be done, without increasing the height of the radar location.

The board is at azimuth angle tilt of 0 degrees - it is kept at this angle ON PURPOSE.

  • Hello,

    Could you please provide the demo visualizer configuration used?

    Thanks and regards,
    CHETHAN KUMAR Y.B.
  • In reply to CHETHAN KUMAR Y.B.:

    I have tested three configurations the difference in the config are mainly in the frame rate, scene param and  azimuth antenna resolution.

    I only get 2 or 3 dots on the XY plot for a human 60 cm away from the Radar - is this how it is supposed to be?

    The heat map shows the wall 2m away, but it only shows a human when the person is present close to the radar again less than 1m

    Config 1

    ===

    % ***************************************************************
    % Created for SDK ver:02.01
    % Created using Visualizer ver:3.1.0.1
    % Frequency:77
    % Platform:xWR16xx
    % Scene Classifier:best_range_res
    % Azimuth Resolution(deg):60
    % Range Resolution(m):0.044
    % Maximum unambiguous Range(m):7.37
    % Maximum Radial Velocity(m/s):1.25
    % Radial velocity resolution(m/s):0.16
    % Frame Duration(msec):250
    % Range Detection Threshold (dB):15
    % Doppler Detection Threshold (dB):15
    % Range Peak Grouping:enabled
    % Doppler Peak Grouping:enabled
    % Static clutter removal:disabled
    % ***************************************************************
    sensorStop
    flushCfg
    dfeDataOutputMode 1
    channelCfg 3 1 0
    adcCfg 2 1
    adcbufCfg -1 0 0 1 0
    profileCfg 0 77 722 7 57.14 0 0 70 1 208 4232 0 0 30
    chirpCfg 0 0 0 0 0 0 0 1
    chirpCfg 1 1 0 0 0 0 0 0
    frameCfg 0 0 16 0 250 1 0
    lowPower 0 1
    guiMonitor -1 0 0 0 1 0 0
    cfarCfg -1 0 0 8 4 4 0 1280
    cfarCfg -1 1 0 4 2 3 0 1280
    peakGrouping -1 1 1 1 1 255
    multiObjBeamForming -1 1 0.5
    clutterRemoval -1 0
    calibDcRangeSig -1 0 -5 8 256
    extendedMaxVelocity -1 0
    bpmCfg -1 0 0 1
    lvdsStreamCfg -1 0 0 0
    nearFieldCfg -1 0 0 0
    compRangeBiasAndRxChanPhase 0.0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
    measureRangeBiasAndRxChanPhase 0 1.5 0.2
    CQRxSatMonitor 0 3 5 123 0
    CQSigImgMonitor 0 103 4
    analogMonitor 1 1
    sensorStart

    ===

    Config 2

    ===

    % ***************************************************************
    % Created for SDK ver:02.01
    % Created using Visualizer ver:3.1.0.1
    % Frequency:77
    % Platform:xWR16xx
    % Scene Classifier:best_range_res
    % Azimuth Resolution(deg):15
    % Range Resolution(m):0.044
    % Maximum unambiguous Range(m):7.37
    % Maximum Radial Velocity(m/s):1.25
    % Radial velocity resolution(m/s):0.16
    % Frame Duration(msec):250
    % Range Detection Threshold (dB):15
    % Doppler Detection Threshold (dB):15
    % Range Peak Grouping:enabled
    % Doppler Peak Grouping:enabled
    % Static clutter removal:disabled
    % ***************************************************************
    sensorStop
    flushCfg
    dfeDataOutputMode 1
    channelCfg 15 3 0
    adcCfg 2 1
    adcbufCfg -1 0 0 1 0
    profileCfg 0 77 332 7 57.14 0 0 70 1 208 4232 0 0 30
    chirpCfg 0 0 0 0 0 0 0 1
    chirpCfg 1 1 0 0 0 0 0 2
    frameCfg 0 1 16 0 250 1 0
    lowPower 0 1
    guiMonitor -1 0 0 0 1 0 0
    cfarCfg -1 0 0 8 4 4 0 5120
    cfarCfg -1 1 0 4 2 3 0 5120
    peakGrouping -1 1 1 1 1 255
    multiObjBeamForming -1 1 0.5
    clutterRemoval -1 0
    calibDcRangeSig -1 0 -5 8 256
    extendedMaxVelocity -1 0
    bpmCfg -1 0 0 1
    lvdsStreamCfg -1 0 0 0
    nearFieldCfg -1 0 0 0
    compRangeBiasAndRxChanPhase 0.0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
    measureRangeBiasAndRxChanPhase 0 1.5 0.2
    CQRxSatMonitor 0 3 5 123 0
    CQSigImgMonitor 0 103 4
    analogMonitor 1 1
    sensorStart

    ====

    Config 3

    ====

    % ***************************************************************
    % Created for SDK ver:02.01
    % Created using Visualizer ver:3.1.0.1
    % Frequency:77
    % Platform:xWR16xx
    % Scene Classifier:best_range
    % Azimuth Resolution(deg):15
    % Range Resolution(m):0.049
    % Maximum unambiguous Range(m):10
    % Maximum Radial Velocity(m/s):1
    % Radial velocity resolution(m/s):0.13
    % Frame Duration(msec):250
    % Range Detection Threshold (dB):15
    % Doppler Detection Threshold (dB):15
    % Range Peak Grouping:enabled
    % Doppler Peak Grouping:enabled
    % Static clutter removal:disabled
    % ***************************************************************
    sensorStop
    flushCfg
    dfeDataOutputMode 1
    channelCfg 15 3 0
    adcCfg 2 1
    adcbufCfg -1 0 0 1 0
    profileCfg 0 77 438 7 48.82 0 0 75 1 256 6250 0 0 30
    chirpCfg 0 0 0 0 0 0 0 1
    chirpCfg 1 1 0 0 0 0 0 2
    frameCfg 0 1 16 0 250 1 0
    lowPower 0 1
    guiMonitor -1 1 0 0 1 0 0
    cfarCfg -1 0 0 8 4 4 0 5120
    cfarCfg -1 1 0 4 2 3 0 5120
    peakGrouping -1 1 1 1 1 255
    multiObjBeamForming -1 1 0.5
    clutterRemoval -1 0
    calibDcRangeSig -1 0 -5 8 256
    extendedMaxVelocity -1 0
    bpmCfg -1 0 0 1
    lvdsStreamCfg -1 0 0 0
    nearFieldCfg -1 0 0 0
    compRangeBiasAndRxChanPhase 0.0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
    measureRangeBiasAndRxChanPhase 0 1.5 0.2
    CQRxSatMonitor 0 3 4 127 0
    CQSigImgMonitor 0 127 4
    analogMonitor 1 1
    sensorStart

    ====

  • In reply to Krishna Kumar4:

    please consider this as resolved, I figured that by tuning with CFAR threshold resulted in better point cloud on XY plot, the device is producing point clouds at the expected angles.

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