Integrity Measures in Direct-positioning

Pau Closas, Adrià Gusi-Amigó, Juan Blanch

Abstract:	Direct Position Estimation (DPE) is a promising solution to enhance sensitivity and robustness of GNSS receivers. At a glance, it involves directly solving for the position, velocity, and time (PVT) without the intermediate steps of computing observables. This was seen, both theoretically and experimentally, to be outperform two-steps positioning in many challenging situations. On the other hand, signal integrity is a major concern in safety-critical applications and there is a need to investigate how integrity of DPE solution can be measured. This article discusses a possibility, leveraging on existing integrity algorithms for two-steps.
Published in:	Proceedings of the 30th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2017) September 25 - 29, 2017 Oregon Convention Center Portland, Oregon
Pages:	2428 - 2435
Cite this article:	Closas, Pau, Gusi-Amigó, Adrià, Blanch, Juan, "Integrity Measures in Direct-positioning," Proceedings of the 30th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2017), Portland, Oregon, September 2017, pp. 2428-2435. https://doi.org/10.33012/2017.15266
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In