摘要
GPS观测成果是WGS-84中的地心空间直接坐标,现实测绘中,我们通常需要的是国家平面坐标。如何有效地转换该坐标成果,一直是工作中的难题。在介绍几种常用坐标系统的基础上,简单分析了坐标转换的基本原理,结合转换模型取得的精度,得出了一些有益的结论。
The observation achievements of GPS are represented in WGS-84 frame,but in the actual surveying,we need the national horizontal coordinates.How to transform the coordinate achievements effectively is always a difficult problem in the work.This paper simply analyzes the basic principle of the transformation of coordinates in the foundation of introducing several kinds of coordinate systems commonly used,combines the precision which obtains from transformation model,and achieves some beneficial conclusions.
出处
《测绘与空间地理信息》
2011年第6期269-271,274,共4页
Geomatics & Spatial Information Technology
关键词
1954年北京坐标系
1980西安坐标系
WGS-84坐标
坐标转换
转换原理
转换方法
Beijing Coordinate System 1954
Xi′an Coordinate System 1980
WGS-84 coordinate
coordinate transformation
transformation principle
transformation method
