海洋测绘2011，Vol.31Issue(5)：28-30,3.
基于验后方差估计原理探测与剔除粗差
Gross Error Elimination Based on the Weight Iteration of Posterior Variance Estimation
孙同贺 1闫国庆2
作者信息
- 1. 内蒙古科技大学矿业工程学院,内蒙古包头014010
- 2. 内蒙古第五地质矿产勘察开发院,内蒙古包头014010
- 折叠
摘要
Abstract
The idea of robust estimation is brought into the algorithm of detecting gross errors, in order to design the model errors,especially with the algorithm of resist errors. First, we calculate the parameters of the observed values, residual errors, co-factor matrix and the initial value of unit weight. Based on residual errors and parameters, we calculate the new weight value for each observation according to the weight function. Through iterative calculation, we may obtain residual errors of the observation, then we use the statistical methods to eliminate gross errors. The experiment proves that it has the good ability of detection of gross errors.关键词
测量平差/抗差估计/粗差的探测和剔除/验后方差/统计检验Key words
survey adjustment/ robust estimation/ detection and elimination of gross errors/ posterior variance/ statistical test分类
天文与地球科学引用本文复制引用
孙同贺,闫国庆..基于验后方差估计原理探测与剔除粗差[J].海洋测绘,2011,31(5):28-30,3.
