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

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.