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Method and apparatus to improve ADS-B security

  • US 20060119515A1
  • Filed: 10/24/2005
  • Published: 06/08/2006
  • Est. Priority Date: 03/05/1999
  • Status: Active Grant
First Claim
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1. A system for authenticating aircraft identification signals, comprising:

  • a first input for receiving an annunciated aircraft position from at least one aircraft generated source, a second input for receiving a derived aircraft position from a non-aircraft generated source, indicating position of the aircraft, a comparator, for comparing the annunciated aircraft position with the derived aircraft position and generating an alarm if the annunciated aircraft position is not within a predetermined range of the derived aircraft position.

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