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Radar interference mitigation

  • US 9,952,312 B2
  • Filed: 07/06/2015
  • Issued: 04/24/2018
  • Est. Priority Date: 07/06/2015
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving time domain signals from a radar device, wherein each of the time domain signals is obtained during a sweep of the radar device;

    transforming, using a processor, the time domain signals to time-frequency domain signals;

    comparing, using the processor, each time-frequency domain signal with one or more previous or subsequent time-frequency domain signals to determine which of the time-frequency domain signals have interference;

    repairing, using the processor, the time-frequency domain signals having interference by;

    determining a median magnitude of cell values for multiple sweeps of the radar device,determining an average vector difference between the multiple sweeps, andreplacing a magnitude for each sweep having interference with an interpolated magnitude based on the median magnitude of cell values and the average vector difference; and

    detecting, using the processor, a target using the repaired time-frequency domain signals.

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