CGCS2000坐标转换中控制点外延和中央子午线的影响分析  

Influence analysis of control point epitaxy and central meridian in CGCS2000 coordinate transformation

作　　者：钱秋艳 安艳辉[2] 孔宪森 郭震冬 Qian Qiuyan;An Yanhui;Kong Xiansen;Guo Zhendong(Nantong New City Planning and Design Service Co.,Ltd.,Nantong Jiangsu 226000,China;Jiangsu Provincial Surveying&Mapping Engineering Institute,Nanjing Jiangsu 210013,China)

机构地区：[1]南通市新城市规划设计服务有限公司,江苏南通226000 [2]江苏省测绘工程院,江苏南京210013

出　　处：《山西建筑》2025年第3期158-161,188,共5页Shanxi Architecture

基　　金：江苏省自然资源厅科技计划项目(项目编号:2020049)。

摘　　要：城市快速发展加快了已有测绘基础设施的破坏,机构改革的推进对成果共享提出了更高要求。针对平面四参数转换过程中参数计算点控制外扩能力、不同等级控制点选取、未知坐标系成果坐标转换工作中央子午线的选取,对转换参数的影响等地理信息成果坐标转换工作中的特殊情况进行了详细分析,并利用江苏某区域实测成果进行对比实验。研究成果对非传统测绘、国土等行业地理信息成果及历史存量地理信息成果的坐标转换工作具有参考价值。The rapid development of the city has accelerated the destruction of the existing surveying and mapping infrastructure,and the promotion of institutional reform has put forward higher requirements for achievement sharing.Based on planar four control parameter in the process of the transformation parameters calculation point expansion ability,different grade control points selection of coordinate transformation of achievement and the unknown coordinate system selection of central meridian's influence on the transformation parameters such as the special geographical information results coordinate transformation work conditions are analyzed in detail,and the use of certain areas of jiangsu comparing the measured results of the experiment.The results of this paper have reference value for coordinate transformation of non-traditional surveying and mapping,land and other industries geographic information achievements and historical stock geographic information achievements.

关 键 词：平面四参数 参数计算 外延 中央子午线 精度 外符合 

分 类 号：TU195[建筑科学—建筑理论]