手持GPS坐标系统转换的方法研究

Study on coordinate system transforms using coordinate system Portable GPS receiver

手持GPS使用的坐标系统默认是WGS-84坐标系统,以经纬度值显示,但在北京城市园林科研中所使用的遥感影像资料绝大部分都属于北京地方坐标系,以直角坐标值显示,为了解决课题研究过程中两个不同坐标系下的数据集成问题,对坐标系统转换的数值方法进行了研究和实例验证,从而为不同坐标系之间快速变换提供了方法参考。

The default coordinate system of Portable GPS is WGS-84, and displaying as the latitudes and longitudes. Most of remote sensing images in landscape research of Beijing belong to local coordinate system, displaying as rectangular coordinates. In order to solve the problem of data integration under two type of coordinate conversions, through the study and experiments on coordinate system transforms, the reference method of fast transforms under two type of coordinate conversions is provided.