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PASSIVE/RANGING/TRACKING PROCESSING METHOD FOR COLLISION AVOIDANCE GUIDANCE

  • US 20030146869A1
  • Filed: 07/13/2002
  • Published: 08/07/2003
  • Est. Priority Date: 04/22/2000
  • Status: Active Grant
First Claim
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1. A passive/ranging/tracking method for tracking a target, comprising the steps of:

  • (a) producing at least a first set of direction measurements and a second set of direction measurements of the target with respect to a carrier from at least a first passive sensor and a second passive sensor through at least a first tracking control device and a second tracking control device respectively, wherein said first and second passive sensors are installed on said carrier and each of said first and second passive sensors is controlled by said respective tracking control device to keep pointing to said target;

    (b) producing navigation data of said carrier, including position, velocity, and attitude data, using an onboard navigation system;

    (c) computing a target range vector measurement of said target with respect to said carrier using said two first set and second set of direction measurements; and

    (d) extracting three-dimensional position and velocity information of said target at a current epoch using said target range vector measurement.

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