最优化理论在椭球参数逆向求定中的应用  

The Application of Optimization Theory in the RE of Ellipsoid Parameters

作　　者：刘敏[1] 王磊[1] Liu Min;Wang Lei(Guangzhou Urban Planning Design&Survey Research Institute,Guangzhou 510060,China)

机构地区：[1]广州市城市规划勘测设计研究院,广东广州510060

出　　处：《城市勘测》2018年第2期102-104,共3页Urban Geotechnical Investigation & Surveying

基　　金：广州市科技计划(201503020022);广州市科技计划(2016协同创新473)

摘　　要：多源数据融合对测绘技术提出的要求实际就是在一个空间坐标下表达多个要素。许多独立坐标无确切的数学模型,通过与质心坐标系(大地坐标系统)的转换一般通过平差或者多参数转换完成。提出了采用最优化理论逆向求定非国家坐标系统与质心坐标的5个自由度关系,为大地坐标作为地理信息系统后台数据库奠定数学基础,并以实例进行分析。Multi-source data fusion on the mapping technology is actually required in a space coordinate expression of multiple elements.Many local coordinates have no exact mathematical model.The conversion to the geodetic coordinate system is usually accomplished by adjustment or multi-parameter conversion.We use the optimization theory to determine the local coordinate system and the coordinate of the center of mass by using the optimization theory.A geometric coordinate system is established as the background data base of GIS,and an example is given for the analysis.

关 键 词：CGCS2000 高精度高斯投影 MATLAB 非线性最小二乘 

分 类 号：P226.3[天文地球—大地测量学与测量工程]