Simultaneous correction of GPS error and map error for improved map-matching: algorithm and application

Hongchao Liu; Heng Wei; Hao Xu; Yuanlu Bao

doi:10.1117/12.813088

3 November 2008 Simultaneous correction of GPS error and map error for improved map-matching: algorithm and application

Hongchao Liu, Heng Wei, Hao Xu, Yuanlu Bao

Proceedings Volume 7145, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Monitoring and Assessment of Natural Resources and Environments; 71452S (2008) https://doi.org/10.1117/12.813088
Event: Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments, 2008, Guangzhou, China

Abstract

This paper presents an improved map-matching algorithm for GPS-based vehicle navigation systems. The proposed approach attempts to correct the GPS error and the Map error simultaneously through a unique combined Kalman filter and virtual differential error correction approach. An advanced Kalman filter algorithm was developed, which, in conjunction with the virtual differential algorithm, handles the biased error and the random error of GPS as well as the map error. Both the along-track and cross-track errors are considered in the error correction process. The performance of the algorithm is thoroughly examined by sample applications and the results are reasonably well.

Citation Download Citation

Hongchao Liu, Heng Wei, Hao Xu, and Yuanlu Bao "Simultaneous correction of GPS error and map error for improved map-matching: algorithm and application", Proc. SPIE 7145, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Monitoring and Assessment of Natural Resources and Environments, 71452S (3 November 2008); https://doi.org/10.1117/12.813088

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