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Real-time Map-matching Algorithm in GPS Navigation System for Vehicles

SU Jie, ZHOU Dong fang, YUE Chun sheng (Information Engineering University of PLA, Zhenzhou 450002,China)  
According to the given source and mathematic model of matching error,a algorithm for real time matching of GPS positioning results and digital maps is put forward. The algorithm is improved so that the precision of vehicle navigation is much higher with the basic hardware platforms available. Finally the statistic results of road test are given.
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