地理空间数据坐标转换研究与应用  

Research and Application of Coordinate Transformation of Geospatial Data

作　　者：张蒙[1] 徐益峰[1] ZHANG Meng;XU Yifeng(Suzhou Surveying and Mapping Institute Co.,Ltd.,Suzhou 215000,China)

机构地区：[1]苏州市测绘院有限责任公司,江苏苏州215000

出　　处：《城市勘测》2023年第6期108-112,共5页Urban Geotechnical Investigation & Surveying

基　　金：苏州市社会发展科技创新项目(SS202131);江苏省测绘地理信息科研项目(JSCHKY201913)。

摘　　要：存量地理空间数据向2000国家大地坐标系(CGCS2000)的坐标转换,是全面推广使用CGCS2000的主要工作之一。针对主流地理空间数据及其应用平台,研究并确定选取的转换模型;以苏州独立坐标系为例,研究分析了与CGCS2000(及苏州2000坐标系)建立联系的具体过程;基于此,研制了坐标转换平台,并通过实际应用进一步验证了平台的适用性和模型的可靠性。该方法可为其他平面坐标系下地理空间数据的转换提供价值参考。The coordinate transformation from stock geospatial data to CGCS20000 is one of the main tasks to comprehensively popularize CGCS2000 at this stage in China.Firstly,for different formats of geospatial data and application platforms,the selected conversion model is studied and determined.Secondly,take Suzhou Independent Coordinate System as an example,the specific process of establishing contact with CGCS2000(and Suzhou Coordinate System 2000)is studied and analyzed.Finally,the coordinate conversion platform is developed,and the applicability of the platform and the reliability of the model are further verified through practical applications.The research content of this paper can provide a reference for geospatial data transformation under other plane coordinate systems.

关 键 词：地理空间数据 CGCS2000 坐标转换 四参数 七参数 高斯投影计算 

分 类 号：P226.3[天文地球—大地测量学与测量工程]