Attltude Determination: Exploiting all Information for Optimal Ambiguity Resolution

Hans-Jiirgen Euler and Craig Hill

Abstract:	It is possible to significantly aid integer ambiguity resolution by exploiting redundant information. Attitude determination using multiple GPS sensors provides such additional information to allow instantaneous ambiguity resolution and hence the necessary information to achieve accurate attitude determination. Optimal use of all information provides not only ambiguity resolution, but the necessary constraints to provide confident resolution. This paper describes a number of different scenarios where additional information about the baseline(s) is provided to the processing algorithm to allow enhanced resolution times and confidence. Results using a minimal number of GPS sensors, perpendicularly located are shown. It is highlighted that instantaneous ambiguity resolution is possible, in addition, the introduction of redundant information reduces the possibility of measurement biases causing incorrect resolution.
Published in:	Proceedings of the 8th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1995) September 12 - 15, 1995 Palm Springs, CA
Pages:	1751 - 1757
Cite this article:	Euler, Hans-Jiirgen, Hill, Craig, "Attltude Determination: Exploiting all Information for Optimal Ambiguity Resolution," Proceedings of the 8th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1995), Palm Springs, CA, September 1995, pp. 1751-1757.
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