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MMWAVE-L-SDK: MMWAVE-L-SDK 05.04.00.01: Question on CFAR DPU

Chris Meng
Mastermind 37786 points
Part Number: MMWAVE-L-SDK

Tool/software:

Hi,

I found below info at MMWAVE_L_SDK_05_04_00_01/docs/api_guide_xwrL14xx/CFARPROC_PAGE.html.

CFAR DPU when the input is range-doppler detection matrix

Would you pls give more info about maximum along doppler dimension (above red rectangle)? How it works? Is above CFAR 2D CFAR or 1D CFAR? I can see it did CFAR on range dimension. It uses different process on doppler dimension.

Thanks,

Chris

  • 0
    TI__Expert 8802 points

    Hi Chris,

    The same CFAR DPU from our other demos is used. We apply CFAR along the range dimension (1D) after finding peaks in the doppler dimension. The peaks in the doppler dimension are mainly to calculate sidelob threshold for every range bin.

    The number of points will depend on the frame rate (since sending out lots of points can take time). There is Macros: MAX_NUM_POINTS_MAJOR_MOTION and MAX_NUM_POINTS_MINOR_MOTION which can define the maximum number of points we want to see.

    Regards,

    Tim