地方坐标与国家坐标各参数之间关系

摘要

The paper introduces the relationship among transformation parameters, form parameters and barycentralization parameters in local and national coordinates. And, it is the first time to present the possibility of obtaining the barycentralization model of the least squares of transformation parameters without arranging the error or normal equation. Then,the parameter formula with specific geometric significance is derived based on calculation of barycentralization parameters.The practical calculation proves the correctness of the model mentioned herein.%导出地方坐标与国家坐标转换参数、形式参数及重心化参数的关系.首次提出不用列误差方程和法方程,就能得到转换参数的最小二乘解的重心化模型,并推导出根据重心化参数计算有明确几何意义的参数公式.通过实例计算,证明模型的正确性.