GPS实时地图匹配技术中缓冲区分析的研究

A Study on Buffering Analysis of GPS in Map Matching Applications

GPS数据如何实时地与GIS地图数据匹配已经成为GPS车辆导航系统中的关键问题之一。通过对GPS车辆导航中地图匹配问题的研究 ,认为可以采用误差缓冲区分析方法对GPS动态定位数据与GIS地图数据进行地图匹配。在实际应用中业已证明该方法效率高、可操作性强 ,有利于提高GPS车辆导航系统在应用中的精度和可靠性。

GPS and GIS are widely used in vehicle control and navigation systems. Both of them, however, have system and random errors that can lead a vehicle navigation system to failure. Fortunately, map matching technique can create a bridge between GIS and GPS to prevent the failure to some extent. However, it is difficult for the available methods to deal with the errors in real-time. Based on a study on the map matching technique, the buffering analysis method that has been used in GIS is utilized to correct the errors introduced by every sources and realize the map matching. This method has been put into application and its feasibility and effectiveness have been proved in vehicle navigation systems.