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Portable localizer siting system

  • US 5,022,751 A
  • Filed: 08/21/1989
  • Issued: 06/11/1991
  • Est. Priority Date: 08/21/1989
  • Status: Expired due to Fees
First Claim
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1. A self-siting ground station for an azimuth guidance system for guiding aircraft on approach to a runway, comprising:

  • a supporting structure;

    a rotatably mounted antenna having a predetermined directional transmitting beam supported by supporting structure, said antenna being rotatable in azimuth;

    a rotatably mounted range finder collocated with said antenna, said range finder having a predetermined sighting direction and being rotatable in azimuth;

    means coupled to said antenna and to said range finder for providing a signal representative of the difference in azimuth between the direction of the transmitting beam of the antenna and the sighting direction of the range finder; and

    computing means responsive to two measured distances between the range finder and each of two arbitrary points along the runway and responsive to the difference in azimuth between the two points for determining the azimuth of the direction of the transmitting beam of the antenna required to cause the transmitting beam to intersect a third predetermined point above an extended portion of a line connecting said two arbitrary points.

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