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System and method for calibrating on-board aviation equipment

  • US 7,499,803 B2
  • Filed: 02/10/2006
  • Issued: 03/03/2009
  • Est. Priority Date: 02/10/2006
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • determining a current location of an aircraft using information received from an on-board Global Positioning System (GPS) system;

    retrieving a location of an automatic direction finder (ADF) station from a navigation database;

    determining an actual bearing from the aircraft to the ADF station using the current location of the aircraft determined by the GPS system and the location of the ADF station retrieved from the navigation database;

    moving the aircraft to a plurality of headings;

    determining an ADF bearing from the aircraft to the ADF station at each of the plurality of headings to which the aircraft is moved;

    calculating an error between the actual bearing and each of the determined ADF bearings; and

    generating an error function based at least in part on the calculated errors.

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