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Volume 28 Issue 3
Mar.  2002
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Journal of Beijing University of Aeronautics and Astronautics  > 2002  >  28(3): 261-264.
PENG Fei, LIU Zhong-kan, ZHANG Qi-shanet al. Cost Function Based Map Matching Algorithm for GPS/DR Integrated Navigation Systems[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(3): 261-264. (in Chinese)
Citation: PENG Fei, LIU Zhong-kan, ZHANG Qi-shanet al. Cost Function Based Map Matching Algorithm for GPS/DR Integrated Navigation Systems[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(3): 261-264. (in Chinese)
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Cost Function Based Map Matching Algorithm for GPS/DR Integrated Navigation Systems

  • Beijing University of Aeronautics and Astronautics, Dept. of Electronic Engineering

  • Received Date: 18 Jul 2000
  • Publish Date: 31 Mar 2002
    Abstract
  • Map-matching is an effective way of improving location accuracy of vehicle location and navigation systems. By analyzing the application of map-matching method in GPS/DR integrated navigation systems, a GPS/DR/Map-matching integrated system model and a cost function based probabilistic map-matching algorithm are proposed. Emphasis was put on how to eliminate the ambiguity in finding map-matching resolution by evaluating a cost function for each correction over time. Simulation results show that, by introducing this algorithm, the positioning performance of integrated navigation system can be improved significantly.

     

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