Vehicle Navigation Systems, Data Processing, Map Matching And Path Planning

With the widespread uses of all kinds of positioning systems, theInte1ligent Transportation System is gotten whip and spur development.As an important part of Intelligent Transportation System, the VehicleNavigation System is needed to study intensively. The content of thispaper mostly include fOllowing points:l Introduce the purpose and meaning of VNS, briefly review the state ofdevelopment in both here and abroad, and summarized the characteristicof modern VNS and the development environment of this system.2 Introduce the transfOrmation of data fOrmat and coordinate system andprojection as well as the process of positioning data.3 How to display map with optimal mode in VNS.4 Some technical detail of map matching. Brought up a method that howto design a map matching filter and introduced a pickup calibrationtechnique that assisted with map.5 The implementation method of the route programming.In the end it is a summary of entire paper and a envisagement of futurework.