模拟水准测量误差的一种方法

确定水准线路的权和误差模型是当前国际上感兴趣的问题之一。本文把最小模方差-协方差分量估计的原理作了扩充,用于模拟水准测量的误差。通过对德国一个一等水准网的分析,证实了所建议的方法的有效性。

A Method to Assess Levelling Measurements

The determination of observation weights and error models in levelling networks is a current problem. The method of Minimum Norm Quadratic Estimation (MINQE) is proposed for the determination of the error model. Different possible models of error structure of levelling measurements are estimated from the adjustment of a network or from the forward-backard discrepancies of levelling lines using the iterated MINQE. An appropriate model of error structure can be obtained after comparing the estimated parameters in the models with their standard deviations. As an example,a first-order levelling network has been analysed. The results demonstrate the usefulness of the method.