摘要
阐述了边角网粗差探测中利用Helmert方差分量估计的原因,研究了利用Helmert方差分量估计以及验后方差估计选权迭代法进行边角网粗差探测的基本原理,然后通过算例验证了该方法。
This paper introduced the reason of using helmert variance component estimating for the gross error detecting of side-angle measurement network,studied the principle of using helmert variance component estimating and iteration method with variable based on posterior variance estimating for the gross error detecting of side-angle measurement network. Then, this paper demonstrated the method with an example.
出处
《城市勘测》
2009年第6期74-76,共3页
Urban Geotechnical Investigation & Surveying
关键词
粗差探测
HELMERT方差分量估计
验后方差估计
gross error detecting
hehnert variance component estimating
posterior variance estimating
