不同站心地平坐标系下的坐标归算

On the Coordinate Transform for the Station Local Coordinate Frame

工程测量中,为确定物体表面的形状,通常需要在多个测站上观测物体表面上均匀分布的离散点坐标,而各测站的站心坐标系指向并不一致。本论文讲述了离散点在不同站心地平坐标系间坐标归算的两种方法,一是利用经度纬度差直接计算修正量,二是通过空间直角坐标进行换算,它们可以消除不同站心地平坐标系不平行性带来的误差,算例表明该方法有效。

In order to determine the math model of an object, coordinates of equally distributed points on its surface must be observed. Limited by observation condition, they are usually observed in different stations. Since the station local coordinate frames are not parallel from one station to another, two methods are introduced in this paper to solve this problem. One is to calculate the coordinate corrections via longitude and latitude difference. The other is to coordinate transform with common points. The example mentioned in this paper shows that these methods work well.