基于V2X通信网络的车辆协同定位增强方法

In view of the importance of vehicle positioning accuracy to the application of Internet of Vehicles and the problems of inadequate positioning accuracy and failure of traditional satellite positioning system in weak signal coverage areas like urban canyons and tunnels, a vehicle positioning method based on V2X communication network is investigated in this paper. The positioning terminals of dedicated short range communications and multi-mode communications network are developed with their performance testing and application deployment completed, and the vehicle cooperative positioning enhancement method based on multiple-model filtering algorithm is designed. The results show that the method proposed can increase positioning accuracy by nearly 40%, compared with traditional GPS-based method.