Receiver Clock-Based Integrity Monitoring for GNSS Positioning

Takashi Iwamoto, Tomoaki Takewa, Wataru Tsujita

Abstract:	A satellite navigation system for a safety critical application is required to provide an integrity alert of any malfunction; the probability that a navigation positioning error exceeds a given alert limit without an integrity alert is required to be smaller than a given integrity risk. So far, a little number of applications provide integrity alerts, because signal propagation from a satellite to a receiver depends on diversified phenomena and makes probabilistic upperbound of possible threats difficult. To widen application fields of satellite navigation, a novel inequality monitoring method that upper-bounds a horizontal positioning errors is derived from physical causality and evaluated using real GPS signals in reflective environment. The calculated upper-bound show faithful response to the horizontal positioning error.
Published in:	Proceedings of the 2015 International Technical Meeting of The Institute of Navigation January 26 - 28, 2015 Laguna Cliffs Marriott Dana Point, California
Pages:	733 - 737
Cite this article:	Iwamoto, Takashi, Takewa, Tomoaki, Tsujita, Wataru, "Receiver Clock-Based Integrity Monitoring for GNSS Positioning," Proceedings of the 2015 International Technical Meeting of The Institute of Navigation, Dana Point, California, January 2015, pp. 733-737.
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