Sea-Based JPALS Relative Navigation Algorithm Development

Surjan Dogra, Jerry Wright and Joe Hansen

Abstract:	The Sea-Based Joint Precision Approach and Landing System (JPALS) requires extremely precise guidance to perform approach and autolanding on U.S. aircraft carriers. Dynamics of the aircraft and ship, disturbances caused by the sea, and the short time for aircraft approach and landing must be dealt with in a robust manner. Very precise relative navigation accuracy is required for such applications. JPALS utilizes differential GPS based on using carrier phase measurements to provide this navigation and guidance capability. This paper discusses Real Time Kinematic (RTK) positioning algorithms that were developed by SNC to support Sea-Based JPALS Technology Development (TD) effort currently in process. A methodology is described for resolving the carrier phase ambiguities to a high level of confidence along with relative positioning algorithms required for manned and unmanned aircraft approach and landing on a moving ship. Performance of the algorithms using simulated as well as actual data collected on ship and aircraft is presented.
Published in:	Proceedings of the 18th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2005) September 13 - 16, 2005 Long Beach Convention Center Long Beach, CA
Pages:	2871 - 2881
Cite this article:	Dogra, Surjan, Wright, Jerry, Hansen, Joe, "Sea-Based JPALS Relative Navigation Algorithm Development," Proceedings of the 18th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2005), Long Beach, CA, September 2005, pp. 2871-2881.
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