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IWR6843: Noisy point cloud cluster directly in front of sensor

Part Number: IWR6843

Hi,

We have been observing, in ceiling-mount configuration, unwanted point cloud noise sometimes appearing directly in front of the sensor at the floor level. This will cause group tracker to generate unwanted an unwanted target. I assume this is a known issue, like the ghost generated at the opposite direction when an object or person enters detection zone. Is there a way to minimize the noise and improve on false detection for group tracker?

Thanks,
Bing