面向车辆监控导航的地图匹配算法研究

在引入地图匹配问题的基础上，针对传感器给出的车辆位置信息的不确定性，提出了基于准投影和曲线拟合的实时地图匹配算法，以适应车辆监控导航实时性的要求。该算法以选取与车辆行进方向一致的道路为核心，利用孤立点轨迹提取和GPS坏点过滤，取消由电子地图数据不完整和坐标变换误差引起的限制，简化运算的复杂度，并能在电子数据不完整或局部路网数据错误的情况下正常运行，从而为车辆监控导航准确性研究提供了基础。实验表明，该算法能够适应实时监控导航系统的需求，而且具有良好的实时性和鲁棒性。

Research on Map-Matching Algorithm Oriented Navigation and Monitor

On the basis of introduction of map-matching problem and the uncertainty of the vehicle location information from the sensor,a real-time map-matching algorithm based on the curve-fitting and quasi-projection is put forward. By introducing isolated point tracking and GPS point of defection filtering,restriction caused by half-baked/incomplete GIS map database and errors in coordinate conversion can be eliminated. This algorithm may reduce operation complexity,and can run normally with incomplete GIS map data...