顾及起始数据误差影响时的变形观测方案设计的探讨

Discussion of Deformation Observation Scheme in View of Initial Data Error

在变形观测中,变形分析的最终对象是设置在变形体上的观测点。而观测点通常是在监控网的控制下进行观测的,监控点座标平差值的误差,对于观测点来说,就是起算数据误差,影响的大小,因点而异,与各观测点联系于监控网的图形及观测方案有关。具体估计数据误差影响的数值,对于制定观测方案及变形分析都有实际意义。

In deformation monitoring, observation points on Lhe deformed body are the final object for analysis, which are usually observed under the con-trolling of monitoring network. The error of coordinate adjestment for them is found as the initial error in calculation which is related to each point in monitoring network and concerned with observation scheme. Thus, to estimate the impacl of this error is very be lpful in observation design and deformaLion analysis.