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IWRL6432: Fuzzy target

user5883945
Expert 1516 points
Part Number: IWRL6432

Tool/software:

Dears,

  

As shown in the above figure, our IWRL6432 scheme currently encounters a problem where A and B targets are placed on the left and right sides of the radar, and the distance between A and B targets is greater than the resolution; The radar will detect a point between target A and target B; This point is virtually generated.

  • 0
    TI__Genius 17577 points

    Hello,

    I believe this is due to the radar configuration's CFAR sidelobe threshold being too low. 

    Example: https://www.youtube.com/watch?v=DSGlg6sWrt0

    Above video shows what radar data looks like when there is no CFAR filtering. It is footage of a person walking towards the radar sensor and then away at direct boresight. However you will see a "ring" of detections around the person. These are the sidelobes and a product of TX-MIMO beamforming. To filter these out, sidelobe thresholds needs to be set higher so that the detection must be stronger before being considered another real target.

    Best Regards,

    Pedrhom