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IWR6843AOPEVM: People counting lab not detecting targets at the sides of the radar

Danh Pham
Intellectual 295 points
Part Number: IWR6843AOPEVM

Hello,

Currently, the radar only detects targets when they come in front of the radar, right in the middle of its POV.

Which parameter in the configuration should I tune so that the radar starts detecting targets at the rear of the radar's POV?

This is my current configuration:

sensorStop
flushCfg
dfeDataOutputMode 1
channelCfg 15 7 0
adcCfg 2 1
adcbufCfg -1 0 1 1 1
lowPower 0 0
profileCfg 0 60.75 30.00 25.00 59.10 394758 0 54.71 1 96 2950.00 2 1 36
chirpCfg 0 0 0 0 0 0 0 1
chirpCfg 1 1 0 0 0 0 0 2
chirpCfg 2 2 0 0 0 0 0 4
frameCfg 0 2 96 0 55.00 1 0
dynamicRACfarCfg -1 4 4 2 2 8 12 4 8 5.00 8.00 0.40 1 1
staticRACfarCfg -1 6 2 2 2 8 8 6 4 8.00 15.00 0.30 0 0
dynamicRangeAngleCfg -1 0.75 0.0010 1 0
dynamic2DAngleCfg -1 1.5 0.0300 1 0 1 0.30 0.85 8.00
staticRangeAngleCfg -1 0 8 8
antGeometry0 -1 -1 0 0 -3 -3 -2 -2 -1 -1 0 0
antGeometry1 -1 0 -1 0 -3 -2 -3 -2 -3 -2 -3 -2
antPhaseRot 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1
fovCfg -1 70.0 20.0
compRangeBiasAndRxChanPhase 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
staticBoundaryBox -1.58 1.6 1.0 4.3 0 2.9
boundaryBox -1.58 1.6 1.0 4.3 0 2.9
sensorPosition 1.92 0 15
gatingParam 3 1.3 1.3 1.3 4
stateParam 4 4 8 200 5 6000
allocationParam 280 350 0.05 30 0.5 20
maxAcceleration 0.3 0.3 0.5
trackingCfg 1 2 700 1 46 96 55
presenceBoundaryBox -1.58 1.6 1.0 4.3 0 2.9
sensorStart

Thank you and happy Thanksgiving.
Danh.
  • 0
    TI__Mastermind 20481 points

    Hi Danh,

    The IWR6843AOPEVM has an azimuth FOV of +/- 60° and an elevation FOV of +/- 60°. Are the targets you are trying to detect within this FOV range?

    Best Regards,

    Josh

  • 0 in reply to Josh Dye
    Intellectual 295 points

    Hi Josh,

    I believe the target is in the range. Target's point cloud showed on the visualizer, but it didn't detect them as a target until the target moves closer, to the middle of the POV.

    Cheers,

    Danh 

  • 0
    TI__Mastermind 20481 points

    Hi Danh,

    Please confirm which version of the mmWave Industrial Toolbox you are currently using and if you have made any modifications to the example code?

    Also please see C:/ti/mmwave_industrial_toolbox/labs/people_counting/docs/3D_people_counting_tracker_layer_tuning_guide.pdf for descriptions of the tracker configuration parameters. 

    Best Regards,

    Josh

  • 0 in reply to Josh Dye
    Intellectual 295 points

    Hi Josh, the toolbox version I was using for the people counting visualizer was 4.7.0, I haven't done any modifications.

     Do you have any suggestions for which parameter I should try tuning? Since I've followed the guides in the PDF but it doesn't seem to solve the issue of delays in detecting a target.

    Thanks,

    Danh

  • +1 in reply to Danh Pham
    TI__Mastermind 20481 points

    Hi Danh,

    I would recommend that you try tuning 'allocationParam' These parameters are used to determine if a new track should be allocated.

    Based on the config you provided, I can see that you have increased some of the track allocation thresholds from the example people counting config file. Lowering these thresholds may resolve the delay that you are experiencing in track allocation.

    Please see 3D_people_counting_tracker_layer_tuning_guide.pdf for detailed information on the tracker configuration parameters.

    Best Regards,

    Josh

  • 0 in reply to Josh Dye
    Intellectual 295 points

    Thank you very much, Josh.

    Happy holidays!