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Interference avoidance system for vehicular radar system

  • US 5,280,288 A
  • Filed: 08/14/1992
  • Issued: 01/18/1994
  • Est. Priority Date: 08/14/1992
  • Status: Expired due to Term
First Claim
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1. An interference avoidance system for detecting and avoiding interference in a vehicular target detection system, including:

  • a) a vehicular target detection system for generating at least a first and second transmit signal having different frequencies, and receiving signals including reflections of the transmit signals indicative of targets; and

    b) an interference detection system, coupled to the vehicular target detection system, for detecting whether interference is present in such received signals by determining the power level of a plurality of selected frequencies, averaging the power in each such selected frequency, and detecting that interference is present if the average power is greater than a reference value, and for causing the vehicular target detection system to change from at least the first transmit frequency to at least the second transmit frequency in response to such detection.

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