削弱不可建模系统差影响的高程异常拟合方法

A Fitting Method for Systematic Error Reduction in Elevation Anomaly

采用有限个基函数拟合高程异常时，通常还存在不可建模的系统差。本文探讨了采用权阵削弱这种系统差影响的方法，并根据系统差的特点构造了权阵的形式，分析了本文解法具有连续、收敛于采样值等优良性质，给出了这种方法的实用算法。

When elevation anomaly is fitted by finite basic functions, systematic errors often occurred. This paper discusses the reduction of such errors by weight matrix and the form of that is structured by the features of systematic errors.