Robust estimation for correlated observations: two local sensitivity-based downweighting strategies
文献类型：期刊论文
| 作者 | Guo, Jianfeng ; Ou, Jikun ; Wang, Haitao |
| 刊名 | Journal of Geodesy
 |
| 出版日期 | 2010 |
| 期号 | 4页码:243-250 |
| 中文摘要 | An iterative robust estimation procedure for correlated observations is proposed, in which the a-prior correlation coefficient matrix is not updated to alleviate the computational burden. Selection of the downweighting strategy plays a key role in the proposed method. Two local sensitivity-based strategies, one is based on the uniformly most powerful test statistics, the other is based on the standardized least squares residuals, are developed and analyzed. Monte Carlo simulations in the GPS network adjustment scenario demonstrate that, the two strategies can provide a certain resistance against the deteriorating effect of outlying observations on the parameter estimates; the former downweighting strategy is superior to the latter one, both in terms of robustness and computational efficiency. |
| 原文出处 | |
| 公开日期 | 2012-04-11 |
| 源URL | [http://ir.whigg.ac.cn/handle/342008/3057]  |
| 专题 | 测量与地球物理研究所_其他_期刊论文 |
| 推荐引用方式 GB/T 7714 | Guo, Jianfeng,Ou, Jikun,Wang, Haitao. Robust estimation for correlated observations: two local sensitivity-based downweighting strategies[J]. Journal of Geodesy,2010(4):243-250. |
| APA | Guo, Jianfeng,Ou, Jikun,&Wang, Haitao.(2010).Robust estimation for correlated observations: two local sensitivity-based downweighting strategies.Journal of Geodesy(4),243-250. |
| MLA | Guo, Jianfeng,et al."Robust estimation for correlated observations: two local sensitivity-based downweighting strategies".Journal of Geodesy .4(2010):243-250. |
入库方式： OAI收割
来源：测量与地球物理研究所
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