A comparative study of different stabilizers for retrieving geoelectric structure based on a unified framework
文献类型：期刊论文
| 作者 | Rao, Liting3; Wu, Xin1,2,5; Guo, Rui4; Gao, Jianshen3; Dang, Bo3 |
| 刊名 | JOURNAL OF APPLIED GEOPHYSICS
 |
| 出版日期 | 2020-04-01 |
| 卷号 | 175页码:13 |
| 关键词 | Inversion Regularization Geoelectric structure Stabilizer decomposition |
| ISSN号 | 0926-9851 |
| DOI | 10.1016/j.jappgeo.2020.104001 |
| 英文摘要 | Quantitative inversions of electromagnetic sounding data typically implement regularization to overcome the ill-posedness and obtain the geoelectric models in accordance with the prior information. The prior information is included by introducing the corresponding stabilizing functional (or a stabilizer) as a penalty term in the objective functional. However, there are a variety of stabilizers that can be chosen and some of them share similar properties. The choice of the appropriate stabilizer is still a problem in practical application. Therefore, we develop a stabilizer decomposition (SD) method to provide a better understanding of how stabilizers differ from each other and enable inverse problems with different stabilizers to be solved in a unified framework. The SD method decomposes the stabilizer into a weight function and a kernel function. The kernel function represents the core of minimization of the specific stabilizer and determines the fundamental characteristic. The weight function imposes extra tuning effect. The similarities and differences between different stabilizers can be explained from the perspective of the kernel function and weight function. Through the inversions of various geoelectric models, the performance of similar stabilizers under different inversion parameter settings are compared and analyzed in terms of accuracy, stability and structural characteristics. We further discuss the reasons for their distinctive performance based on the SD method. It is hoped that this study would enable a reasoned selection of the stabilizer and more flexible tests with different stabilizers for retrieving geoelectric structure. (C) 2020 Elsevier B.V. All rights reserved. |
| WOS关键词 | SHARP BOUNDARY ; INVERSION ; ALGORITHM ; MODEL |
| 资助项目 | National Natural Science Foundation of China[41804115] ; National Natural Science Foundation of China[51974250] ; Natural Science Basic Research Plan in Shaanxi Province of China[2018JQ4007] ; Natural Science Basic Research Plan in Shaanxi Province of China[2018JQ4008] ; Natural Science Basic Research Plan in Shaanxi Province of China[2018JQ5133] ; Natural Science Foundation of Shaanxi Provincial Department of Education[19JK0669] |
| WOS研究方向 | Geology ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000527307000017 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Basic Research Plan in Shaanxi Province of China ; Natural Science Basic Research Plan in Shaanxi Province of China ; Natural Science Foundation of Shaanxi Provincial Department of Education ; Natural Science Foundation of Shaanxi Provincial Department of Education ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Basic Research Plan in Shaanxi Province of China ; Natural Science Basic Research Plan in Shaanxi Province of China ; Natural Science Foundation of Shaanxi Provincial Department of Education ; Natural Science Foundation of Shaanxi Provincial Department of Education ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Basic Research Plan in Shaanxi Province of China ; Natural Science Basic Research Plan in Shaanxi Province of China ; Natural Science Foundation of Shaanxi Provincial Department of Education ; Natural Science Foundation of Shaanxi Provincial Department of Education ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Basic Research Plan in Shaanxi Province of China ; Natural Science Basic Research Plan in Shaanxi Province of China ; Natural Science Foundation of Shaanxi Provincial Department of Education ; Natural Science Foundation of Shaanxi Provincial Department of Education |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/96231]  |
| 专题 | 地质与地球物理研究所_中国科学院矿产资源研究重点实验室 |
| 通讯作者 | Rao, Liting |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 3.Xian Shiyou Univ, Sch Elect Engn, Xian 710065, Peoples R China 4.Tsinghua Univ, Beijing Natl Res Ctr Informat Sci & Technol BNRis, Dept Elect Engn, State Key Lab Microwave & Digital Commun, Beijing 100084, Peoples R China 5.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Rao, Liting,Wu, Xin,Guo, Rui,et al. A comparative study of different stabilizers for retrieving geoelectric structure based on a unified framework[J]. JOURNAL OF APPLIED GEOPHYSICS,2020,175:13. |
| APA | Rao, Liting,Wu, Xin,Guo, Rui,Gao, Jianshen,&Dang, Bo.(2020).A comparative study of different stabilizers for retrieving geoelectric structure based on a unified framework.JOURNAL OF APPLIED GEOPHYSICS,175,13. |
| MLA | Rao, Liting,et al."A comparative study of different stabilizers for retrieving geoelectric structure based on a unified framework".JOURNAL OF APPLIED GEOPHYSICS 175(2020):13. |
入库方式： OAI收割
来源：地质与地球物理研究所
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