现有地理信息成果坐标系统向CGCS2000坐标转换的应用研究  

Application of Transformation of Geographic Information Results to China Geodetic Coordinate System 2000

作　　者：邓鹏琦 陈雅涓 Deng Pengqi;Chen Yajuan(Suining Investigation and Survey Institute,Suining 629000,China)

机构地区：[1]遂宁市勘察测绘院,四川遂宁629000

出　　处：《城市勘测》2020年第2期115-118,122,共5页Urban Geotechnical Investigation & Surveying

摘　　要：根据国家要求,决定自2018年7月1日起全面使用2000国家大地坐标系,而国内现有的地理信息成果大多数都是基于北京54、西安80坐标系或地方坐标系,为了将我国原有的或国际上其他参考框架的测量成果和资料得到充分的利用,保持我国现有地理信息成果的现势性,就需要分析、改进向2000国家大地坐标系的转换方法。本文针对实际生产项目中已有的不同格式的地理信息成果,利用相应的坐标转换软件将其转换到2000国家大地坐标系,将转换结果与已知坐标或图形数据进行对照或叠加分析,分析其转换精度。According to the national request,decided to full use of China Geodetic Coordinate System 2000 since July 1,2018.But most of the domestic existing geographic information results are based on Beijing 54,Xi’an 80 coordinate system or local coordinate system.In order to fully make use of the original or other international reference frame of the measurement results and data,and keep the existing geographic information results in our country,we need to analysis and improve the method of transformation of China Geodetic Coordinate System 2000.In this paper,the existing geographic information results in different formats in the actual production project are converted to China Geodetic Coordinate System 2000 by using the corresponding coordinate transformation software,and the conversion results are compared or superimposed with the known coordinate or graphic data to analyze the conversion accuracy.

关 键 词：北京54 西安80 CGCS2000 坐标转换 

分 类 号：P226.3[天文地球—大地测量学与测量工程]