|
|||||
|
|
| ??????????????????M???? | |
| 引用本文： | 林国标,刘立龙,蔡成辉,黎峻宇,黄良珂.??????????????????M????[J].大地测量与地球动力学,2015,35(2):235-238. |
| 作者姓名： | 林国标 刘立龙 蔡成辉 黎峻宇 黄良珂 |
| 作者单位： | 1 广西矿冶与环境科学实验中心，桂林市建干路12号, 541004 2 桂林理工大学测绘地理信息学院，桂林市建干路12号, 541004 3 广西空间信息与测绘重点实验室，桂林市建干路12号, 541004 |
| 基金项目： | 国家自然科学基金（41064001）|广西自然科学基金（2012GXNSFAA053183，2012GXNSFGA060001）|广西空间信息与测绘重点实验室基金（桂科能1207115-07）|广西研究生教育创新计划（YCSZ2013077）|广西“八桂学者”岗位专项 |
| 摘 要： | ??????????????????????????????????????????L??1??-?????????????????????????????????????????????????????????M??????÷???????н?????????????????С??????????????????????÷??????????????????LS????????????￡?????Ч???????????????????????????????????????? |
| 关 键 词： | ???? ???M???? ???? ?????? |
| 收稿时间： | 2014-03-19 |
An Improved Two-Step M Estimation Method Based on the Danish Method |
|
| LIN Guobiao,LIU Lilong,CAI Chenghui,LI Junyu,HUANG Liangke.An Improved Two-Step M Estimation Method Based on the Danish Method[J].Journal of Geodesy and Geodynamics,2015,35(2):235-238. | |
| Authors: | LIN Guobiao LIU Lilong CAI Chenghui LI Junyu HUANG Liangke |
| Institution: | 1〓Guangxi Scientific Experiment Center of Mining, Metallurgy and Environment, 12 Jiangan Road,Guilin 541004, China 2〓College of Geomatic Engineering and Geoinformatics, Guilin University of Technology, 12 Jiangan Road ,Guilin 541004, China 3〓Guangxi Key Laboratory of Spatial Information and Geomatics, 12 Jiangan Road ,Guilin 541004, China |
| Abstract: | To deal with the problem of improper selection of initial and critical values in robust estimation methods, an improved two-step M estimation method is proposed, based on the L1 estimation value and modified weight function of the Danish method.The proposed method is not only relatively robust, but also optimizes the least squares.The numerical experiments show that the estimated results of this method are basically consistent with those of LS estimation when there are no gross errors, and the method with conspicuous robust effect is much better than traditional other two-step robust estimation methods. |
| Keywords: | Danish method two-step M estimation critical value mean square error |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《大地测量与地球动力学》浏览原始摘要信息 | |
| 点击此处可从《大地测量与地球动力学》下载免费的PDF全文 | |