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Improved radar receiver system

  • US 5,307,069 A
  • Filed: 11/02/1973
  • Issued: 04/26/1994
  • Est. Priority Date: 11/02/1973
  • Status: Expired due to Term
First Claim
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1. A radar receiver having a main channel and an auxiliary channel and receiving jamming, interfering pulses and target pulses comprising:

  • coherent cancelling means coupled to said main channel and to said auxiliary channel for cancelling jamming signals and having an output terminal, said coherent cancelling means having a predetermined response time,circuit means coupled to said auxiliary channel for providing a decreasing voltage representation of a fast time constant to signals received from said auxiliary channel, said circuit means having said time constant selected to be substantially equal to the response time of said coherent cancelling means,comparison means coupled to said circuit means and to the output terminal of said coherent cancelling means for providing a blanking signal in response to a predetermined comparison signal from said auxiliary channel and said output terminal, andgating means coupled to the output terminal of said coherent cancelling means and to said comparison means for being blanked in response to a blanking signal.

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