基于CGCS2000地心独立坐标系基准确定方法探讨

Geocentric Coordinate System Based on CGCS2000

国家坐标系的独立坐标系建立后,原国家坐标系的控制点不能直接应用于独立坐标系中,需要确定并计算得出独立坐标系的基准。独立坐标系的基准确定直接关系到独立坐标系的精度及其与国家坐标系间的转换。随着测绘技术的发展,一些原有的传统基准确定方法已不能满足高精度地心坐标系的要求,因此本文对地心坐标系的独立坐标系的基准确定方法进行了探讨。

After the establishment of the independent coordinate system based on the national coordinate system, for the control point of the original national coordinate system cannot be directly applied to the independent coordinate system, it is necessary to determine and calculate the datum of the independent coordinate system.The datum determination of the independent coordinate system is directly related to the accuracy of the independent coordinate system and its transformation with the national coordinate system.With the development of mapping technology, this paper discussed methods those can satisfy the requirements of high-precision geocentric coordinate system to replace some traditional methods which cannot.