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INDEPENDENT LANDING MONITORING PULSE RADAR SYSTEM

  • US 3,775,766 A
  • Filed: 01/11/1972
  • Issued: 11/27/1973
  • Est. Priority Date: 02/04/1971
  • Status: Expired due to Term
First Claim
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1. An Independent Landing Monitoring (ILM) pulse radar system for use in cooperation with three reflectors B1 , B2 and B3 (FIGS. 10, 14) and with auxiliary on board - systems supplying flight parameters, said ILM system supplying bearing and elevation information ( gamma , delta FIGS.10 and 11) relative to the position of the aircraft on which it is mounted with respect to the runway on which the aircraft has to land, similar to those supplied by conventional I.L.S. Systems, said radar system further comprising :

  • compensation circuit means (310 ,FIG. 12b)for supplying bearing values compensated for the dynamic errors in the computation of said bearing information said circuit means comprising ;

    first correcting means (305,

         306) for compensating for the longitudinal displacement of the aircraft , said first means having inputs for the reflector parameters (IB ) and an output , and second correcting means (300 and

         303) for compensating for the aircraft yaw movement , said second means having an input for the course of the aircraft (C), an input for the antenna bearing indication (gi),an input coupled to said first correcting means output, and an output supplying said compensated value.

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