Evaluation of Multiple Fault Exclusion Based on L1 Norm Minimization with multi-GNSS Measurements in Urban Environments

Li-Ta Hsu, Hiroko Tokura, Nobuaki Kubo, Shunsuke Kamijo

Peer Reviewed

Abstract:	The potential of using RAIM to detect and exclude multipath effects and NLOS receptions is mentioned in many studies. However, it is difficult to be practically used in the urban canyon due to the lack of satellites. As coming of the multi-GNSS era, the number of satellite increases dramatically. But still, the advance RAIM handles the measurements of different constellations separately. This paper applies the DGNSS technique, which provides the correction including the time-offsets between GPS and other constellations. By the help of the DGNSS correction, all the measurements can be processed together in the RAIM FDE. L1-norm minimization is previous proven to be the most effective RAIM FDE based on simulation results in many studies. However, its evaluation using real data collected in urban canyons is yet to release. This paper, hence, evaluates the RAIM FDE based on the L1-norm minimization in the middle and deep urban canyons. The results indicate the L1-norm minimization can achieve preferable positioning performance when the number of healthy satellite is sufficient.
Published in:	Proceedings of the 28th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2015) September 14 - 18, 2015 Tampa Convention Center Tampa, Florida
Pages:	2995 - 3004
Cite this article:	Hsu, Li-Ta, Tokura, Hiroko, Kubo, Nobuaki, Kamijo, Shunsuke, "Evaluation of Multiple Fault Exclusion Based on L1 Norm Minimization with multi-GNSS Measurements in Urban Environments," Proceedings of the 28th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2015), Tampa, Florida, September 2015, pp. 2995-3004.
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