Changing Lanes with Smartphones Technology

Garrett Seepersad, Jiahuan Hu, Sihan Yang, Ding Yi, and Sunil Bisnath

Abstract: Smartphone positioning utilizing advanced GNSS technology is allowing unprecedented access for precise location services to the mass-market. Recently, the access to raw GNSS measurement and the advent of GNSS receiver chips allowing multifrequency signals and carrier-phase measurement on a number of Android phone models have provided ideal platforms to further investigate and improve smartphone positioning capability. The Google Smartphone Decimeter Challenge has provided a plethora of raw GNSS measurements and smartphone sensor output data sets with reference solutions. This paper focuses on a unique analysis of a navigation engine which was designed for smartphone positioning focused on enabling lane level navigation. A threshold of 3 m was adopted and the performance under different environments was analyzed. Lane level navigation is possible under optimal conditions where the cross-track error was less than 3 m for 94% of the data. In challenging urban canyons, lane level navigation was less feasible as only 35% of the data was less than 3 m. To enable lane navigation in urban canyons, additional features such as software constraints (such as zero velocity update, zero angular rate update, land vehicle constraint and height constraint) will be implemented and further optimization of the outlier detection strategies.
Published in: Proceedings of the 34th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2021)
September 20 - 24, 2021
Union Station Hotel
St. Louis, Missouri
Pages: 3021 - 3036
Cite this article: Seepersad, Garrett, Hu, Jiahuan, Yang, Sihan, Yi, Ding, Bisnath, Sunil, "Changing Lanes with Smartphones Technology," Proceedings of the 34th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2021), St. Louis, Missouri, September 2021, pp. 3021-3036.
https://doi.org/10.33012/2021.18044
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