Improvement of the Map-Matching Algorithm Based on WSN Localization Algorithm and Bearing Information
Guofang Dong · Journal of Yunnan University of Nationalities · 2011
The global positioning system GPS has many merits such as high precision,real-time,low-cost,etc.,but it is hard for GPS signal to work in the urban environment where satellite signal is blocked.This paper analyzes the map-matching algorithm in the system of VNS and concludes that the technique of the wireless networks node of localization algorithm can help perfect the GPS by improving the matching accuracy of the map-matching algorithm according to the information for the angle course,the dip angle of the road and the distance from the present position to the target road.Based on the previous studies on the weight degree of bearing information,the paper presents an improvement of the map-matching algorithm on bearing information and carries out the simulation studies in the condition of Matlab.