Acta Geodaetica et Cartographica Sinica ›› 2014, Vol. 43 ›› Issue (2): 208-220.

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Improved Map Matching Algorithm Based on D-S Evidence Theory

  

  • Received:2012-09-17 Revised:2013-12-04 Online:2014-02-20 Published:2014-02-28

Abstract:

The map matching algorithm based on D-S evidence theory of vehicle-borne navigation system often uses position and angle evidences in map matching algorithm, but with the increasingly complex structure of the transport network in the city, this algorithm results have some limitations and the matching accuracy can not meet the need of vehicle networking technology. With the continuous development of GPS and other positioning equipment, the data of vehicle speed and positioning interval can be obtained accurately. On this basis, this article put reachability evidence as the third evidence fusion with the integration result of the first two evidence. What’s more, by simulation training for different road network topology, we obtained more accurate position and angle reliability parameters for practical application. Results of simulation show that this map matching algorithm dramatic increase in accuracy and stability, especial suited for complex road network in cities.

Key words: vehicle navigation, map matching, D-S evidence theory, reachability information, evidence reliability parameters

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