GPS地面车辆导航系统数据坐标变换的算法

An Algorithm of Coordinate Transformation for Ground Vehicle Navigation System Data with GPS

在ＧＰＳ地面车辆导航系统中，需要将ＧＰＳ接收机收到的数据在电子地图中实时地显示出来。ＧＰＳ定位数据属于美国国防部研制的ＷＧＳ—８４坐标系，而电子地图坐标系系５４北京坐标系的高斯平面投影。我们探讨了一种算法，将ＧＰＳ数据转换为电子地图所能显示的数据形式，并加以仿真实现。结果表明，该算法实用而效。

In ground vehicle navigation system with GPS,it is necessary that data in GPS receivers be displayed on the digital road map in real time.GPS positioning data belong to WGS—84 coordinate deveoped by the Defense Department of the United States,and digital road map coordinate is Guass plane projection of 54'Beijing coordinate.This paper discusses and simulates an algouithm to convert GPS data into a data form that can be displayed on the digital road map.Results show that the algorithm is practical and valid.