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Extended target-log CFAR processor

  • US 4,104,633 A
  • Filed: 04/18/1977
  • Issued: 08/01/1978
  • Est. Priority Date: 04/18/1977
  • Status: Expired due to Term
First Claim
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1. A CFAR radar video signal processor comprising:

  • first means including at least one delay line responsive to said radar video signal and having a predetermined plurality of outputs spaced in time by one range cell of the radar system in which said CFAR processor is being used;

    second means including a least of circuit connected to provide an output corresponding to the least of the signals extant on any of said first means outputs except a predetermined centrally located output, in time;

    and a differencing circuit responsive to said least of circuit output and to the signal provided by said first means corresponding to a centrally located signal to subtract said least of circuit output from said signal on said centrally located tap to produce a CFAR video output signal.

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