测定地球引力常数GM的协方差分析

编制了在ＧｉｖｅｎｓＧｅｎｔｌｅｍｅｎ正交变换算法下的多级复弧协方差分析软件．运用到引力常数ＧＭ解算的情形中，并计算了未参加估计的台站坐标的误差对产生解算结果的影响．这种影响的直接后果是降低了解算的精度．对产生解算内符精度和真实外符精度之间差别的原因进行了初步的探讨

COVARIANCE ANALYSIS FOR DETERMINATION OF THE CONSTANT OF EARTH GRAVITATION

On the basis of the Givens Gentleman algorithm of covariance analysis, a program to deal with real data is coded in this paper. When the program is applied to the GM solution obtained in , the errors of the station coordinates are taken into consideration. The real sigmas are shown to be larger than the computed ones, and this means a degradation of accuracy. The explanation for and implication of the result are discussed preliminarily.