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Radar processor

  • US 4,488,154 A
  • Filed: 03/25/1982
  • Issued: 12/11/1984
  • Est. Priority Date: 04/25/1980
  • Status: Expired due to Term
First Claim
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1. A radar system processor for detecting signals in the presence of clutter comprising:

  • means for deriving signals from reflections of directively radiated groups of at least three radar pulses in which the interpulse periods in each group are equal;

    detector means for extracting components of received signals phase related to said pulses;

    means for sampling said components at intervals in time corresponding to ranges of reflections;

    means for storing the sequences of samples generated by said sampling means during said interpulse periods;

    a plurality of velocity filters;

    said filters having means for weighting each sequence of stored samples with weighting coefficients;

    at least some of said weighting coefficients being different for different velocity filters; and

    means for normalizing the outputs of different ones of said velocity filters as a function of said clutter passing through said different filters.

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