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Effects of Sensor Errors on the Performance of Map Matching

Published online by Cambridge University Press:  18 April 2005

Wu Chen ,
Zhilin Li ,
Meng Yu  and
Yongqi Chen
Wu Chen
Affiliation:
The Hong Kong Polytechnic University. Email: lswuchen@polyu.edu.hk
Zhilin Li
Affiliation:
The Hong Kong Polytechnic University. Email: lswuchen@polyu.edu.hk
Meng Yu
Affiliation:
The Hong Kong Polytechnic University. Email: lswuchen@polyu.edu.hk
Yongqi Chen
Affiliation:
The Hong Kong Polytechnic University. Email: lswuchen@polyu.edu.hk
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Abstract

Map matching has been widely applied in car navigation systems as an efficient method to display the location of vehicles on maps. Various map-matching algorithms have been proposed. Inevitably, the correctness of the map matching is closely related to the accuracy of positioning sensors, such as GPS or Dead Reckoning (DR), and the complexity of the road network and map, especially in urban areas where the GPS signal may be constantly blocked by buildings and the road network is complicated. The existing map matching algorithms cannot resolve the positioning problems under all circumstances. They sometimes give the wrong position estimates of the car on road; the result is called mismatching. In order to improve the quality of map matching, a deep understand of the accuracy of sensor errors on mismatching is important. This paper analyses various factors that may affect the quality of map matching based on extensive tests in Hong Kong. Suggestions to improve the success rate of map matching are also provided.

Keywords

Map MatchingGPS and DRNavigation System
Type
Research Article
Information
The Journal of Navigation , Volume 58 , Issue 2 , May 2005 , pp. 273 - 282
Copyright
© 2005 The Royal Institute of Navigation

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