动态大地网的参考基准和分析

本文着重阐述动态大地网的参考基准问题。包括它和自由网平差法的联系、自由网任何参考基准坐标参数一般公式的导出以及从参考基准理论直观地导出坐标参数及其协因数阵的变换公式。本文还提出了一个位移分析程序,演算了实例,阐明不同参考基准对位移结果的影响。

Reference Datum and Analysis of the Dynamic Geodetic Network

This paper lays emphasis upon reference datum of dynmic geodetic network.Included in this paper are the discussion of the relation between the adjustment of free network and reference datum,the derivation of a general estimation formula of the coordinate parameters of arbitrary reference datum of free network,and the derivation of the transformation formula of the coordinate parameters and its cofactor matrix from the theory of reference datum.In addition,a procedure for analysis of displacement has been proposed,a practical example has been illustrated and the influence of different reference datum to the solution of displacement has been explained.