椭球膨胀法在地方独立坐标系中的应用研究  

Application of the Expansion Ellipsoid Method in the Area Independent Coordinate System

作　　者：边涛[1] 刘娟[1] Bian Tao;Liu Juan(The Third Geological and Mineral Exploration Institute of Gansu Provincial Bureau of Geology and Mineral Resources,Lanzhou,Gansu 730050)

机构地区：[1]甘肃省地矿局第三地质矿产勘查院,甘肃兰州730050

出　　处：《工程技术研究》2020年第6期273-275,共3页Engineering and Technological Research

摘　　要：文章通过选择已知的参考椭球面作为过渡的椭球面,利用椭球膨胀法变换模型,建立地方独立坐标系,选择特定的转换方式重新建立符合地方独立坐标系下的地方参考椭球,再通过坐标转换到现有国家的已知坐标系下,从而解决并保证区域范围内独立坐标系的精度问题。In this paper,a known reference ellipsoid is selected as the intermediate transition ellipsoid.The ellipsoid expansion method is used to transform the model to establish a local independent coordinate system.A specific transformation method is selected to re-establish a local reference ellipsoid in the local independent coordinate system.Coordinates are transformed into known coordinate systems of existing countries,thereby solving and guaranteeing the accuracy of independent coordinate systems in the region.

关 键 词：独立坐标系 膨胀椭球法 地方参考椭球 椭球变换 

分 类 号：P228.4[天文地球—大地测量学与测量工程]