中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院地球与行星物理重点实验室
Direct expansion of Fourier extrapolator for one-way wave equation using Chebyshev polynomials of the second kind

文献类型：期刊论文

作者Song, Hanjie3; Zhang, Jinhai1,2; Zou, Yongliao3
刊名GEOPHYSICS
出版日期2022-03-01
卷号87期号:2页码:S63-S73
ISSN号0016-8033
DOI10.1190/GEO2021-0114.1
英文摘要The Fourier method for one-way wave propagation is efficient but potentially inaccurate in complex media. The implicit finite-difference (FD) method can handle arbitrarily complex media, but it can be inefficient in 3D and has limited dip bandwidth. We have adopted a new Fourier method based on the Chebyshev expansion of the second kind. Theoretical analyses and numerical experiments indicate that our method is comprehensively superior to a similar method based on the Chebyshev expansion of the first kind in terms of balanced amplitude and error tolerance. Within the dip bandwidth from 0 degrees to 65 degrees, the fourth-order form of our method has an error tolerance of 2%, which is approximately one-third that of the Chebyshev expansion of the first kind. Our method also is superior to the implicit FD method in several important aspects: effective bandwidth, computational efficiency, numerical dispersion, and two-way splitting error. It can be easily extended from 2D to 3D compared with the FD method and from low orders to high orders compared with the optimized Chebyshev-Fourier method. Our method finds better imaging results of the SEG/EAGE model by providing a well-focused salt dome, flank, and bottom as well as the detailed structures beneath the salt body, compared with the implicit FD method and the Chebyshev expansion of the first kind; meanwhile, our method has fewer imaging artifacts because it can better position the reflectors.
WOS关键词FINITE-DIFFERENCE MIGRATION ; PSEUDOSPECTRAL METHOD ; DEPTH MIGRATION ; TRUE-AMPLITUDE ; 3-D MIGRATION ; APPROXIMATION ; PROPAGATION ; OPERATOR ; SCHEMES ; SCATTERING
资助项目National Key R&D Program of China[2020YFE0202100] ; National Natural Science Foundation of China[11941001] ; Chinese National Space Administration[D020201] ; Chinese National Space Administration[D020203]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000887918500018
出版者SOC EXPLORATION GEOPHYSICISTS
资助机构National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese National Space Administration ; Chinese National Space Administration ; Chinese National Space Administration ; Chinese National Space Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese National Space Administration ; Chinese National Space Administration ; Chinese National Space Administration ; Chinese National Space Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese National Space Administration ; Chinese National Space Administration ; Chinese National Space Administration ; Chinese National Space Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese National Space Administration ; Chinese National Space Administration ; Chinese National Space Administration ; Chinese National Space Administration
源URL[http://ir.iggcas.ac.cn/handle/132A11/107679]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Zhang, Jinhai
作者单位1.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Song, Hanjie,Zhang, Jinhai,Zou, Yongliao. Direct expansion of Fourier extrapolator for one-way wave equation using Chebyshev polynomials of the second kind[J]. GEOPHYSICS,2022,87(2):S63-S73.
APA Song, Hanjie,Zhang, Jinhai,&Zou, Yongliao.(2022).Direct expansion of Fourier extrapolator for one-way wave equation using Chebyshev polynomials of the second kind.GEOPHYSICS,87(2),S63-S73.
MLA Song, Hanjie,et al."Direct expansion of Fourier extrapolator for one-way wave equation using Chebyshev polynomials of the second kind".GEOPHYSICS 87.2(2022):S63-S73.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。