Enhancing Ambiguity Resolution Performance Using Attitude Determination Constraints

G. Zheng, D. Gebre-Egziabher

Abstract:	In this paper, an integration methodology for Carrier phase Differential Global Navigation Satellite System (CDGNSS) attitude determination and relative positioning is presented. The integer ambiguity resolution performance is evaluated using data from ground and flight tests. Performance is evaluated in terms of Time-To-First-fiX (TTFX). The results show that the integrated system can significantly improve the integer ambiguity resolution performance by decreasing the TTFX. It is shown that the improvement can be from a few seconds to a few minutes. The performance is enhanced when multiple baselines from the attitude determination system are used.
Published in:	Proceedings of the 22nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2009) September 22 - 25, 2009 Savannah International Convention Center Savannah, GA
Pages:	2156 - 2168
Cite this article:	Zheng, G., Gebre-Egziabher, D., "Enhancing Ambiguity Resolution Performance Using Attitude Determination Constraints," Proceedings of the 22nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2009), Savannah, GA, September 2009, pp. 2156-2168.
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