CGCS2000与独立坐标系转换模型适用性研究  

Applicability research of transformation model between CGCS2000 and independent coordinate system

作　　者：李东[1] 毛之琳[1] 廖文兵[1] 陈敏[1] 

机构地区：[1]国家测绘地理信息局大地测量数据处理中心,陕西西安710054

出　　处：《测绘工程》2015年第1期1-5,共5页Engineering of Surveying and Mapping

基　　金：国家863计划资助项目(2009AA121402-5);陕西测绘局科技创新项目(2010-2)

摘　　要：针对CGCS2000与城市独立坐标系转换中,如何根据需要选择合适转换模型,使产生的转换坐标具有高精度或者高符合性问题,利用CGCS2000与独立坐标系边长差和方位角差比较方法,分析转换模型特性。并通过实例对常用转换模型进行验证,归纳出模型的适用性,解决坐标转换中不同需求模型选择问题。文中方法对其它坐标转换有一定借鉴作用。For the transformation of China Geodetic Coordinate System 2000 and City Independent Coordinate System,how to select the appropriate transformation model is proposed by creating the coordinates with high precision or high compliance issues.The comparison method of side length and azimuth difference is used between the China Geodetic Coordinate System 2000 and Independent Coordinate System to analyze the transformation model features.And through the examples of common conversion model,the applicability is tested and the different needs in coordinate transformation model selection are presented.This method has a certain reference for the other.

关 键 词：独立坐标系 CGCS2000 精度估计 坐标转换 转换模型 

分 类 号：P22[天文地球—大地测量学与测量工程]