关于北京54和西安80坐标系相互转换的探讨——基于湖北省境内控制成果  

DISCUSSION ABOUT TRANSFORMATION BETWEEN BEIJING 54 AND XI’AN 80 COORDINATE SYSTEM——Baed on the geodetic database in Hubei province

作　　者：张龙其[1] 刘平[2] 邢光成[2] 吕利萍[1] 

机构地区：[1]中国地质大学,武汉430074 [2]湖北省基础地理信息中心,武汉430071

出　　处：《工程地球物理学报》2005年第1期69-72,共4页Chinese Journal of Engineering Geophysics

摘　　要：基于大地坐标全微分公式探讨了54和80坐标之间的相互转换问题,对常用的3 参数法和7 参数法做了一些改进。用参数法进行坐标转换,参加运算的已知控制点决定了转换结果的精度。笔者基于湖北省内的控制成果库,通过实验分析了控制点的选取范围、参加运算的控制点的个数及控制点的等级对转换结果的影响。The paper discusses transform between Bejing 54 and Xi＇an 80 coordinates system based on the whole differential equation of geodesic, and some improvement has been made in the 3 parameter method and the 7 parameter method. And the experimentation, which is based on the geodetic database in Hubei province, has been made to analyse the effect of the range, account and precision grade of known control points on the calculating result.

关 键 词：54坐标 80坐标 参数法 坐标转换 

分 类 号：P226.3[天文地球—大地测量学与测量工程]