Improvement of INS-Aided GPS Tracking Performance under Strong Ionospheric Scintillation

T. Tsujii, T. Fujiwara, T. Kubota

Abstract:	Ionospheric anomaly is one of the major error sources which affect the GPS performance. Especially, ionospheric scintillation may cause GPS signal loss, and multiple losses would degrade the availability of positioning/navigation service (e.g. GBAS). In order to improve tracking performance under scintillation, an INS-aided tracking loop has been developed, and flight tests were conducted at around Ishigaki-Island where ionosphere scintillation occurs frequently. Evaluations of phase tracking performance were carried out off-line by using a software-defined GPS receiver which processes stored IF data. As results, continuous phase tracking under strong scintillation was demonstrated by the INS-aided tracking loop.
Published in:	Proceedings of the 2014 International Technical Meeting of The Institute of Navigation January 27 - 29, 2014 Catamaran Resort Hotel San Diego, California
Pages:	638 - 644
Cite this article:	Updated citation: Published in NAVIGATION: Journal of the Institute of Navigation
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