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Single-Step Data-Domain Least-Squares Reverse-Time Migration Using Gabor Deconvolution for Subsalt Imaging

文献类型：期刊论文

作者Liu, Qiancheng2; Lu, Yongming3; Hui, Sun4; Zhang, Hao1
刊名IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
出版日期2020
卷号17期号:1页码:13-16
关键词Deconvolution Imaging Transforms Data models Mathematical model Radar imaging Lighting Deconvolution Gabor transform least-squares imaging subsalt
ISSN号1545-598X
DOI10.1109/LGRS.2019.2916847
英文摘要Least-squares reverse-time migration (LSRTM) distinctly improves seismic imaging quality, but at an expensive computation overhead involving tens of iterations. We herein take a computationally cheaper single-step LSRTM solution, which intrinsically performs deblurring through a data-domain Wiener deconvolution. However, the Wiener filter mainly solves the signal estimation problems for stationary signals. Subsalt imaging often suffers from strong salt-related reflections and artifacts. The former and the latter give rise to strong amplitude variance and changed source wavelets in the demigrated data, increasing its nonstationarity and hindering the data-deblurring operation in the single-step LSRTM. To alleviate the nonstationarity during the data-domain deblurring, we consider a Gabor deconvolution method. Testing on the Sigsbee data sets shows that the Gabor deconvolution method is effective, producing subsalt images of more balanced events and fewer artifacts than the raw RTM image. The Gabor deconvolution-related result also outperforms the standard single-step LSRTM result with more robust behavior and better subsalt imaging quality.
资助项目King Abdullah University of Science and Technology (KAUST)
WOS研究方向Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
WOS记录号WOS:000505528400003
出版者IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
资助机构King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST)
源URL[http://ir.iggcas.ac.cn/handle/132A11/95881]  
专题地质与地球物理研究所_其他部门
通讯作者Liu, Qiancheng
作者单位1.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China
2.King Abdullah Univ Sci & Technol, Dept Phys Sci & Engn, Thuwal 239556900, Saudi Arabia
3.Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen 518055, Guangdong, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Qiancheng,Lu, Yongming,Hui, Sun,et al. Single-Step Data-Domain Least-Squares Reverse-Time Migration Using Gabor Deconvolution for Subsalt Imaging[J]. IEEE GEOSCIENCE AND REMOTE SENSING LETTERS,2020,17(1):13-16.
APA Liu, Qiancheng,Lu, Yongming,Hui, Sun,&Zhang, Hao.(2020).Single-Step Data-Domain Least-Squares Reverse-Time Migration Using Gabor Deconvolution for Subsalt Imaging.IEEE GEOSCIENCE AND REMOTE SENSING LETTERS,17(1),13-16.
MLA Liu, Qiancheng,et al."Single-Step Data-Domain Least-Squares Reverse-Time Migration Using Gabor Deconvolution for Subsalt Imaging".IEEE GEOSCIENCE AND REMOTE SENSING LETTERS 17.1(2020):13-16.

入库方式： OAI收割

来源：地质与地球物理研究所

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