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Adaptive collision threat assessor

  • US 4,417,248 A
  • Filed: 06/30/1981
  • Issued: 11/22/1983
  • Est. Priority Date: 06/30/1981
  • Status: Expired due to Fees
First Claim
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1. A monopulse radar operative to detect at least one potential threat and to track said threat through a sequence of time increments beginning with the detection thereof, wherein the improvement includes a system for assessing said detected threat adaptively in accordance with the relative bearing thereof with respect to said radar to determine the collision potential thereof with said radar, said system comprising:

  • means for deriving a signal representative of said relative bearing of said detected threat for each time increment to generate a sequence of relative bearing representative signals respectively corresponding to said sequence of time increments;

    means for generating a first signal for each of a selected number of time increments based on a signal weighting function of said relative bearing representative signals derived for the sequence of time increments from threat detection to said corresponding selected time increment, inclusively;

    means for generating a second signal for each of said selected number of time increments based on a signal weighting function of a predetermined number of most recently derived relative bearing representative signals with respect to said corresponding selected time increment;

    means for generating a third signal for each of said selected number of time increments based on a function representative of the fluctuations in the relative bearing representative signals generated for the sequence of time increments from threat detection to said corresponding selected time increments, inclusively; and

    means for compairing, at each of said selected number of time increments, the deviation between said correspondingly generated first and second signals with said corresponding generated third signal to determine the collision potential of said detected threat with said radar.

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