Cooperative Vehicle Positioning Method based on V2X Enhanced GPS

doi:10.16182/j.issn1004731x.joss.19-FZ0309

Abstract

Abstract: In order to further improve the vehicle positioning accuracy and adaptability to the environment, V2X (vehicle to everything) communication network is used for auxiliary positioning to enhance the GPS/DR integrated positioning. Firstly, the three subsystems of GPS, DR and V2X auxiliary positioning independently perform filtering estimation, and then a better estimation from the GPS and V2X auxiliary positioning is selected to conduct global optimal fusion with DR, and finally the three sub-filters are reset with the feedback of the optimal result. Simulation results show that when the GPS signal is seriously affected by multipath interference, the positioning performance of the method in this paper is improved by 64% and 36%, respectively, compared with the single GPS and GPS/DR integrated positioning, which has higher accuracy and better environmental adaptability than the conventional scheme.

Key words: integrated navigation, cooperative positioning, filtering estimation, information fusion, V2X

CLC Number:

TN967.2

Wang Jiuling, Wu Shaobo, Zhang Yuanli, Qiu Jiahui, Liu Qi. Cooperative Vehicle Positioning Method based on V2X Enhanced GPS[J]. Journal of System Simulation, 2019, 31(12): 2901-2906.

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