通过椭球变换建立区域独立坐标系的方法

Method of Establishing Regional Coordinate System by Ellipsoid Transform

阐述了应用椭球变换的方法建立区域独立坐标系的方法。以某山区道路为例,分别运用椭球膨胀法、椭球平移法、椭球变形法建立区域独立坐标系,对这些方法建立的独立坐标系的投影变形值进行了分析,比较了三种方法的特点。

This paper describes a new method of the establishment of a regional independent system by transforming regional ellipsoidal surface. Taking a mountain road for example, it is expounded that ellipsoid expanding model, ellipsoid shift model and ellipsoid distortion model is used in establishing regional coordinate system, then the author analyses projection distortion that three methods establish coordinate system, comparing of the characteristics of three methods.