摘要
我国常用的大地坐标系有北京54、西安80、国家2000、WGS84等,在实际工作中,常常会遇到测量点野外采集坐标与实际提交成果坐标的坐标系不一致、不同坐标系的数据资料需要匹配,选择适当的换算方法进行坐标系转换后才能使用。本文结合工作实际,将野外GPS采集到测量点的WGS84坐标,选用布尔莎七参数法转换,并阐述了坐标转换的原理和流程,浅析了坐标系转换中常见的认识误区,有一定的实用意义。
Beijing 54,Xi＇an80,State2000,WGS84,et,are the usual terrestrial coordinate system in China. In the practical working, we often meet the inconsistent of coordinate system between field collection coordinate of survey point and coordinate of realistic submission result. The data of different coordinate system must be match each other,which can be used only after the transformation of coordinate system according to suitable calculation method. In this paper,we,in combination with the realistic work,the WGS 84 coordinate of survey point collected by field GPS is transformed with Bursha 7 parameters method,the principle and flow chart of coordinate transformation are interpreted and have a preliminary analysis of the usual wrong knowledge in coordinate transformation,which have a certain application value.
出处
《云南地质》
2017年第2期302-306,共5页
Yunnan Geology
关键词
坐标系
坐标系转换
七参数法
Coordinate System
Transformation of Coordinate System
7 Parameters Merhod
