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Combined SAR monopulse and inverse monopulse weapon guidance

  • US 5,473,331 A
  • Filed: 10/31/1994
  • Issued: 12/05/1995
  • Est. Priority Date: 10/31/1994
  • Status: Expired due to Term
First Claim
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1. A SAR monopulse and inverse monopulse weapon guidance system for guiding a weapon to a target, said system comprising:

  • a launch platform;

    a synthetic aperture radar disposed on a launch platform for generating a synthetic aperture radar monopulse map of an area surrounding the target, for designating the location of the target, and for transmitting an inverse monopulse illumination that is comprised of a sequence of alternating sum and simultaneous azimuth and elevation difference patterns centered on the target;

    a weapon comprising a weapon guidance system and noncoherent radar seeker that is responsive to guidance commands transmitted by the launch platform, for receiving reflections of the alternating sum and combined azimuth and elevation difference pattern from the target, and for using these reflections to acquire and track the azimuth and elevation difference pattern null on the target so as to fly an optimum trajectory to the target.

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