工程独立坐标系与国家坐标系联系方法探索与研究  

Exploration and Research on the Connection Method between Engineering Independent Coordinate System and National Coordinate System

作　　者：马庆伟 MA Qingwei(801 Institute of Hydrogeology and Engineering Geology,Shandong Provincial Bureau of Geology&Mineral Resources,Ji′nan 250014,China;Shandong Engineering Research Center for Environmental Protection and Remediation on Groundwater,Ji′nan 250014,China)

机构地区：[1]山东省地质矿产开发局八○一水文地质工程地质大队,山东济南250014 [2]山东省地下水环境保护与修复工程技术研究中心,山东济南250014

出　　处：《测绘与空间地理信息》2024年第2期215-218,共4页Geomatics & Spatial Information Technology

摘　　要：针对某些独立坐标系与2000国家大地坐标系(简称CGCS 2000)之间的联系关系未建立或联系关系不完善的问题,本文以某地城网为例展开研究,探索了3种不同方式用于建立独立坐标系与CGCS 2000之间的联系关系。通过比对3种方式的转换精度、转换关系的稳健性、误差分布水平等指标,最终提出“重建椭球+参数传递+重新投影”的方法,达到了平均±0.012 m的转换精度水平,很好地建立了该独立坐标系与CGCS 2000之间的转换关系,为解决类似问题提供了有效参考。Aiming at the problem that the relation between some independent coordinate systems and China Geodetic Coordinate System 2000(CGCS2000)has not been established or the relation is not perfect,this paper takes a urban independent coordinate system as an example and explores three different ways to establish the relation between the independent coordinate system and CGCS2000.By comparing the conversion accuracy,the robustness of the conversion relation and the error distribution level of the three methods,the method of"reconstruction ellipsoid+parameter transfer+reprojection"is finally proposed,which achieves an average conversion accu-racy of±0.012 m.The conversion relation between the independent coordinate system and CGCS2000 is well established,providing an effective reference for solving similar problems.

关 键 词：独立坐标系 CGCS2000 转换关系 椭球 投影 

分 类 号：P226.3[天文地球—大地测量学与测量工程]