三维网平差的方差分量估计

本文将方差分量估计理论运用于三维网平差中,推导出了含定向角未知数及消去定向角未知数的方差分量估计公式,并进行了模拟和实例计算,从而建立了合理的三维网平差随机模型。

Variance Components Estimate in Three Dimension Network Adjustment

In this paper, we are using the theories of variance components estimate in 3-D (threedimension) network adjustment, deriving the formules of variance components estimatewhich the orientation angular unknowns are involved or eliminated, in order to set upthe random models of 3-D network adjustment.