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An Improved Map-matching Algorithm based on Low frequency GPS Data

机译:一种基于低频GPS数据的改进地图匹配算法

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It is important to match vehicle GPS points onto a map. Many map-matching algorithms, which use heading, speed and position to complete the map-matching process, are not suitable for the low frequency GPS data. The distance between two adjacent GPS points in the low frequency GPS data can range from 500m to 1000m, and the vehicle can cross several streets. This paper puts forward a modified weight-based algorithm using the vertical distance and the shortest path. This weight-based algorithm uses the instantaneous speed of two points to estimate the vehicle travel distance. Therefore, the improved algorithm has the higher accuracy.
机译:将车辆GPS点匹配到地图上很重要。许多使用标题,速度和位置完成地图匹配过程的地图匹配算法不适合低频GPS数据。低频GPS数据中的两个相邻GPS点之间的距离可以从500米到1000米,并且车辆可以通过几条街道。本文使用垂直距离和最短路径提出了修改的基于重量的算法。这种基于重量的算法使用两点的瞬时速度来估计车辆行驶距离。因此,改进的算法具有更高的准确性。

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