ARAIM Continuity and Availability Assertions, Assumptions, and Evaluation Methods

Mathieu Joerger, Yawei Zhai, Ilaria Martini, Juan Blanch, Boris Pervan

Peer Reviewed

Abstract:	In this paper, we describe assumptions and assertions needed to account for continuity and availability risks in Advance Receiver Autonomous Integrity Monitoring (ARAIM). We identify key differences with current RAIM-based operations, including the potential of ARAIM to not require systematic pre-flight availability screening. The assumptions and assertions provide a rationale on why fault exclusion is needed in horizontal-ARAIM (H-ARAIM), but is not needed in vertical ARAIM (V-ARAIM). We implement existing methods and design new approaches to predict continuity and availability in the presence of satellite faults and outages, and we analyze performance sensitivity to risk requirements and measurement models.
Published in:	Proceedings of the 2020 International Technical Meeting of The Institute of Navigation January 21 - 24, 2020 Hyatt Regency Mission Bay San Diego, California
Pages:	404 - 420
Cite this article:	Joerger, Mathieu, Zhai, Yawei, Martini, Ilaria, Blanch, Juan, Pervan, Boris, "ARAIM Continuity and Availability Assertions, Assumptions, and Evaluation Methods," Proceedings of the 2020 International Technical Meeting of The Institute of Navigation, San Diego, California, January 2020, pp. 404-420. https://doi.org/10.33012/2020.17152
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