Exact line search method for using the L1-norm misfit function in full waveform inversion
文献类型：期刊论文
| 作者 | Ma, Xiaona3,4; Liang, Guanghe3,4; Xu, Shanhui2; Li, Zhiyuan3,4; Feng, Haixin1 |
| 刊名 | STUDIA GEOPHYSICA ET GEODAETICA
 |
| 出版日期 | 2020-11-09 |
| 页码 | 21 |
| 关键词 | full waveform inversion L1 misfit function exact line search method |
| ISSN号 | 0039-3169 |
| DOI | 10.1007/s11200-020-0904-5 |
| 英文摘要 | Full waveform inversion (FWI) is a non-linear inverse problem that can be sensitive to noise. The tolerance of the noise-interference characteristics depends on the types of misfit functions. To date, different misfit functions, such as the least-squares norm (L2), the least-absolute-value norm (L1), and combinations of the two (e.g., the Huber and hybrid criteria), have been applied to FWI. The L2 norm is highly sensitive to non-Gaussian errors in the data and gives rise to high-amplitude artifacts in reconstructed models. For non-Gaussian noise data, the L1 norm and the Huber and hybrid criteria always reliably reconstruct models. However, the Huber and hybrid criteria require tedious error investigations to estimate their threshold criterion. Thus, the L1 norm is adopted here to improve the anti-noise ability of the FWI. The step length is closely related to the misfit function, and an optimal step-length estimation method can rapidly make the FWI algorithm reach the global minimum, with a reduced number of iterations and fewer extra forward modeling simulations during each iteration. The step length can usually be obtained using the exact or inexact line search method. Generally, the exact line search method is faster than the inexact one. Therefore, we derived an exact line search method for the L1 norm in the FWI process. Its effectiveness was tested using noise-free data from Overthrust and the SEG/EAGE salt models. The results demonstrate that this method can recover high-resolution velocity models with low computational costs. Numerical tests using the synthetic Overthrust model contaminated by strong noise were used to further validate the robustness of this exact line search method. |
| WOS关键词 | SEISMIC-REFLECTION DATA ; TOMOGRAPHY ; GRADIENT |
| 资助项目 | Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences[IGGCAS-201902] ; Open Issue of Key Laboratory of Mineral Resources, Chinese Academy of Sciences[KLMR2017-17] ; China Postdoctoral Science Foundation[2018M641470] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000587620200001 |
| 出版者 | SPRINGER |
| 资助机构 | Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Open Issue of Key Laboratory of Mineral Resources, Chinese Academy of Sciences ; Open Issue of Key Laboratory of Mineral Resources, Chinese Academy of Sciences ; Open Issue of Key Laboratory of Mineral Resources, Chinese Academy of Sciences ; Open Issue of Key Laboratory of Mineral Resources, Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Open Issue of Key Laboratory of Mineral Resources, Chinese Academy of Sciences ; Open Issue of Key Laboratory of Mineral Resources, Chinese Academy of Sciences ; Open Issue of Key Laboratory of Mineral Resources, Chinese Academy of Sciences ; Open Issue of Key Laboratory of Mineral Resources, Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Open Issue of Key Laboratory of Mineral Resources, Chinese Academy of Sciences ; Open Issue of Key Laboratory of Mineral Resources, Chinese Academy of Sciences ; Open Issue of Key Laboratory of Mineral Resources, Chinese Academy of Sciences ; Open Issue of Key Laboratory of Mineral Resources, Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Open Issue of Key Laboratory of Mineral Resources, Chinese Academy of Sciences ; Open Issue of Key Laboratory of Mineral Resources, Chinese Academy of Sciences ; Open Issue of Key Laboratory of Mineral Resources, Chinese Academy of Sciences ; Open Issue of Key Laboratory of Mineral Resources, Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/98708]  |
| 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 | Li, Zhiyuan |
| 作者单位 | 1.China Elect Technol Corp, Inst 3, Beijing 100015, Peoples R China 2.China Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China 3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Xiaona,Liang, Guanghe,Xu, Shanhui,et al. Exact line search method for using the L1-norm misfit function in full waveform inversion[J]. STUDIA GEOPHYSICA ET GEODAETICA,2020:21. |
| APA | Ma, Xiaona,Liang, Guanghe,Xu, Shanhui,Li, Zhiyuan,&Feng, Haixin.(2020).Exact line search method for using the L1-norm misfit function in full waveform inversion.STUDIA GEOPHYSICA ET GEODAETICA,21. |
| MLA | Ma, Xiaona,et al."Exact line search method for using the L1-norm misfit function in full waveform inversion".STUDIA GEOPHYSICA ET GEODAETICA (2020):21. |
入库方式： OAI收割
来源：地质与地球物理研究所
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