Accurate Positioning in GNSS-Challenged Environments with Consumer-Grade Sensors

Urs Niesen, Jubin Jose, and Xinzhou Wu

Abstract:	Emerging automotive applications require reliable but at the same time low-cost positioning solutions. In this paper, we present such a solution, by fusing the measurements from several consumer-grade sensors using a tightly-coupled centralized filter. The sensors used are a single-frequency GNSS receiver providing GPS and GLONASS pseudo-ranges and GPS carrier-phase measurements, a MEMS IMU, a monocular camera, wheel-speed and steering-angle sensors. We also employ vehicular constraints, integrated as pseudo-measurements. The centralized fusion architecture allows sensor cross-calibration and improves outlier detection. The filter runs in real time on the target platform, producing pose estimates at 30 Hz. Through extensive experimental evaluations, we demonstrate positioning accuracies of sub-meter 95-percentile horizontal errors even in GNSS-challenged deep-urban scenarios.
Published in:	Proceedings of the 31st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2018) September 24 - 28, 2018 Hyatt Regency Miami Miami, Florida
Pages:	503 - 514
Cite this article:	Niesen, Urs, Jose, Jubin, Wu, Xinzhou, "Accurate Positioning in GNSS-Challenged Environments with Consumer-Grade Sensors," Proceedings of the 31st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2018), Miami, Florida, September 2018, pp. 503-514. https://doi.org/10.33012/2018.15998
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In