Rail Digital Map Construction on GNSS Denied Areas

Michele Brizzi, Francesca D’Orazio, Alessandro Neri

Abstract:	A Digital Map of the rail infrastructure in a key element to support the adoption of GNSS in railway signalling and satisfy the strict accuracy and integrity requirements even in the presence of feared events that may hinder the positioning solution. In this work, we tackle the issue of providing an accurate rail Digital Map for localization purposes, bridging the gaps produced by the loss of Global Navigation Satellite System (GNSS) coverage using forward and backward post-processing of inertial navigation. Experimental results show that the proposed method is able to increase the accuracy of the resulting Digital Map.
Published in:	Proceedings of the 2023 International Technical Meeting of The Institute of Navigation January 24 - 26, 2023 Hyatt Regency Long Beach Long Beach, California
Pages:	1143 - 1153
Cite this article:	Brizzi, Michele, D’Orazio, Francesca, Neri, Alessandro, "Rail Digital Map Construction on GNSS Denied Areas," Proceedings of the 2023 International Technical Meeting of The Institute of Navigation, Long Beach, California, January 2023, pp. 1143-1153. https://doi.org/10.33012/2023.18643
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