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Verification of aircraft emitter

  • US 9,917,657 B1
  • Filed: 06/12/2014
  • Issued: 03/13/2018
  • Est. Priority Date: 06/12/2014
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • receiving at least one first automatic dependent surveillance-broadcast (ADS-B) signal;

    estimating at least two physical layer features of the at least one first ADS-B signal;

    recognizing at least two data content features of the at least one first ADS-B signal, wherein the at least two data content features comprises a registration address and a plausibility of a reported flight path;

    determining that the at least one first ADS-B signal originated from an emitter of an aircraft based on the at least two estimated physical layer features of the at least one first ADS-B signal and the at least two recognized data content features of the at least one first ADS-B signal;

    performing a clustering algorithm to identify the emitter of the aircraft based on the at least two estimated physical layer features and the at least two recognized data content features of the at least one first ADS-B signal;

    outputting a verified aircraft identification to an air traffic control station for presentation to a user upon determining that the at least one first ADS-B signal originated from the emitter of the aircraft based on the at least two estimated physical layer features of the at least one first ADS-B signal;

    receiving at least one second ADS-B signal;

    measuring at least one physical layer feature of the at least one second ADS-B signal; and

    determining that the at least one second ADS-B signal originated from an emitter of a spoofed aircraft based on the at least one measured physical layer feature of the at least one second ADS-B signal.

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