Practical Integration of a Digital GPS Receiver With IN Systems

Terry Ellis, Steven Leasure, James Thomas

Abstract:	Design details of the algorithms used in the PA9051 Digital GPS Receiver to implement the INS integration function are discussed and the results of test flights given. Particularly, the mechanization of the GPS Kalman filter and the simple cascaded INS filter are covered showing how the design was proved in simulation and that the test flights confirmed the correct operation of the system. Details of the lever arm corrections used for the position and velocity are also given. The benefits of aiding the GPS tracking function in terms of improved anti- jamming margin and reacquisition times are included and simulation results show how an unknown data latency degrades the tracking performance.
Published in:	Proceedings of the 44th Annual Meeting of The Institute of Navigation (1988) June 21 - 23, 1988 U.S. Naval Academy Annapolis, Maryland
Pages:	117 - 123
Cite this article:	Ellis, Terry, Leasure, Steven, Thomas, James, "Practical Integration of a Digital GPS Receiver With IN Systems," Proceedings of the 44th Annual Meeting of The Institute of Navigation (1988), Annapolis, Maryland, June 1988, pp. 117-123.
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