2000坐标系转换模型的试验分析与研究  

Experimental analysis on transformation model of 2000 coordinate system

作　　者：李巍[1] 高良博[1] 王昶[1] 李强龙 

机构地区：[1]辽宁科技大学土木工程学院,辽宁鞍山114051 [2]沈阳龙天测绘科技有限公司,辽宁沈阳110014

出　　处：《辽宁工程技术大学学报（自然科学版）》2013年第4期557-561,共5页Journal of Liaoning Technical University (Natural Science)

基　　金：辽宁省自然科学基金资助项目(201102087)

摘　　要：针对适用于较大区域内进行坐标转换的问题,对2000坐标系转换的四参数模型进行研究.分别采用了三种试验方案进行分析比较,重点描述从1980西安坐标系到2000国家大地坐标系转换的过程及要求,对实验数据的精度进行分析以及不同方案中重合点的参数进行检校.研究结果表明:采用四参数模型转换是可行的,该模型控制点坐标的转换精度可以满足控制点转换精度需求,同时为大地测量坐标系的建设提供一些参考.In terms of the problem of coordinate conversion in a larger area,this study had investigated the four parameters model in a 2000 coordinate system transformation.Three test plans were used to compare the transformations.In particular,the transformation from 1980 Xi’an coordinate system to 2000 coordinate system was described in a great detail including process and requirements.In addition,the accuracies of experimental data were analyzed and the parameters of coincidence points were calibrated in different schemes.The results show that the four parameters model transformation is feasible,and the coordinate conversion accuracy of control points can meet the requirements of control point conversion accuracy.The study provides some useful reference values for the construction of earth coordinate system.

关 键 词：大地坐标系 2000坐标系 1980西安坐标系 坐标系转换 8邻域 重合点 最小二乘 精度评定 

分 类 号：P22[天文地球—大地测量学与测量工程]