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Comparison of numerical dispersion for finite-difference algorithms in transversely isotropic media with a vertical symmetry axis

文献类型：期刊论文

作者Liang, Wen-Quan1; Wang, Yan-Fei2; Yang, Chang-Chun2
刊名JOURNAL OF GEOPHYSICS AND ENGINEERING
出版日期2015-02-01
卷号12期号:1页码:108-113
关键词acoustic VTI modeling time-space domain finite difference scheme dispersion relationship
ISSN号1742-2132
DOI10.1088/1742-2132/12/1/108
文献子类Article
英文摘要Numerical simulation of the wave equation is widely used to synthesize seismograms theoretically and is also the basis of the reverse time migration and full waveform inversion. For the finite difference methods, grid dispersion often exists because of the discretization of the time and the spatial derivatives in the wave equation. How to suppress the grid dispersion is therefore a key problem for finite difference (FD) approaches. The FD operators for the space derivatives are usually obtained in the space domain. However, the wave equations are discretized in the time and space directions simultaneously. So it would be better to design the FD operators in the time-space domain. We improved the time-space domain method for obtaining the FD operators in an acoustic vertically transversely isotropic (VTI) media so as to cover a much wider range of frequencies. Dispersion analysis and seismic numerical simulation demonstrate the effectiveness of the proposed method.
WOS关键词REVERSE-TIME MIGRATION ; WAVE PROPAGATION ; HIGH-ORDER ; SCHEMES ; ACCURACY ; SEISMOGRAMS ; EQUATION
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000348852500010
出版者IOP PUBLISHING LTD
资助机构National Natural Science Foundation of China(41325016 ; National Natural Science Foundation of China(41325016 ; National R & D Projects for Key Scientific Instruments(ZDYZ2012-1-02-04) ; National R & D Projects for Key Scientific Instruments(ZDYZ2012-1-02-04) ; JK program of Fujian education department(JK2014050) ; JK program of Fujian education department(JK2014050) ; 11271349) ; 11271349) ; National Natural Science Foundation of China(41325016 ; National Natural Science Foundation of China(41325016 ; National R & D Projects for Key Scientific Instruments(ZDYZ2012-1-02-04) ; National R & D Projects for Key Scientific Instruments(ZDYZ2012-1-02-04) ; JK program of Fujian education department(JK2014050) ; JK program of Fujian education department(JK2014050) ; 11271349) ; 11271349) ; National Natural Science Foundation of China(41325016 ; National Natural Science Foundation of China(41325016 ; National R & D Projects for Key Scientific Instruments(ZDYZ2012-1-02-04) ; National R & D Projects for Key Scientific Instruments(ZDYZ2012-1-02-04) ; JK program of Fujian education department(JK2014050) ; JK program of Fujian education department(JK2014050) ; 11271349) ; 11271349) ; National Natural Science Foundation of China(41325016 ; National Natural Science Foundation of China(41325016 ; National R & D Projects for Key Scientific Instruments(ZDYZ2012-1-02-04) ; National R & D Projects for Key Scientific Instruments(ZDYZ2012-1-02-04) ; JK program of Fujian education department(JK2014050) ; JK program of Fujian education department(JK2014050) ; 11271349) ; 11271349)
源URL[http://ir.iggcas.ac.cn/handle/132A11/86884]  
专题中国科学院地质与地球物理研究所
通讯作者Liang, Wen-Quan
作者单位1.Longyan Univ, Coll Resource Engn, Longyan 364000, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Liang, Wen-Quan,Wang, Yan-Fei,Yang, Chang-Chun. Comparison of numerical dispersion for finite-difference algorithms in transversely isotropic media with a vertical symmetry axis[J]. JOURNAL OF GEOPHYSICS AND ENGINEERING,2015,12(1):108-113.
APA Liang, Wen-Quan,Wang, Yan-Fei,&Yang, Chang-Chun.(2015).Comparison of numerical dispersion for finite-difference algorithms in transversely isotropic media with a vertical symmetry axis.JOURNAL OF GEOPHYSICS AND ENGINEERING,12(1),108-113.
MLA Liang, Wen-Quan,et al."Comparison of numerical dispersion for finite-difference algorithms in transversely isotropic media with a vertical symmetry axis".JOURNAL OF GEOPHYSICS AND ENGINEERING 12.1(2015):108-113.

入库方式： OAI收割

来源：地质与地球物理研究所

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