H1-Integrity of Carrier Phase Navigation Algorithms using Multiple Reference Receivers

Samer Khanafseh, Steven Langel, Boris Pervan

Abstract:	In this paper, a methodology is developed to evaluate carrier phase navigation architectures under reference receiver failure. Different approaches to utilize redundant carrier phase measurements from multiple reference receivers are described. Carrier phase measurements are used to provide high accuracy estimates of a user’s position. But in precision approach applications that involve safety-of-life, such as in autonomous shipboard landing, integrity also plays a critical role. One case where the system integrity becomes at risk is in the situation of GPS reference receiver failure. Integrity risk in these applications is kept at a minimum by equipping the ship (reference station) with redundant receivers. In this paper, we investigate the impact of different methods on accuracy and integrity from several perspectives, including availability performance, cycle resolution capabilities, implementation complexity and computational efficiency.
Published in:	Proceedings of the 2009 International Technical Meeting of The Institute of Navigation January 26 - 28, 2009 Disney's Paradise Pier Hotel Anaheim, CA
Pages:	236 - 247
Cite this article:	Khanafseh, Samer, Langel, Steven, Pervan, Boris, "H1-Integrity of Carrier Phase Navigation Algorithms using Multiple Reference Receivers," Proceedings of the 2009 International Technical Meeting of The Institute of Navigation, Anaheim, CA, January 2009, pp. 236-247.
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