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Recognition of and method and apparatus for GPS antenna lever arm compensation in integrated GPS/dead reckoning navigation systems

  • US 5,784,029 A
  • Filed: 10/28/1996
  • Issued: 07/21/1998
  • Est. Priority Date: 10/28/1996
  • Status: Expired due to Term
First Claim
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1. A method for improving the heading of a global positioning satellite (GPS) receiver installed on a movable vehicle, the GPS receiver including a GPS antenna for receiving GPS signals, the method comprising the steps of:

  • recognizing that when the movable vehicle is turning the GPS antenna has a velocity component not aligned with a velocity of the movable vehicle when the GPS antenna is offset relative to a center of rotation of the vehicle;

    recognizing that said velocity component of the GPS antenna causes error in heading of the GPS receiver; and

    compensating the heading of the GPS receiver based upon the recognition of said velocity component of the GPS antenna using an external source of heading.

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