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Proceedings Paper

Simultaneous correction of GPS error and map error for improved map-matching: algorithm and application
Author(s): Hongchao Liu; Heng Wei; Hao Xu; Yuanlu Bao
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Paper 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.

Paper Details

Date Published: 3 November 2008
PDF: 11 pages
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); doi: 10.1117/12.813088
Show Author Affiliations
Hongchao Liu, Texas Tech Univ. (United States)
Heng Wei, Univ. of Cincinnati (United States)
Hao Xu, Texas Tech Univ. (United States)
Yuanlu Bao, Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 7145:
Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Monitoring and Assessment of Natural Resources and Environments
Lin Liu; Xia Li; Kai Liu; Xinchang Zhang; Yong Lao, Editor(s)

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