Convolutional perfect matched layer boundary for trapezoid grid finite difference seismic modeling

Bangyu Wu; Wenhao Xu; Junxiong Jia; Bo Li; Hui Yang; Haixia Zhao; Jinghuai Gao

doi:10.1190/segam2018-2995754.1

Convolutional perfect matched layer boundary for trapezoid grid finite difference seismic modeling

Bangyu Wu
, Wenhao Xu
, Junxiong Jia
, Bo Li
, Hui Yang
, Haixia Zhao
, Jinghuai Gao

Xi'an Jiaotong University
SNOPEC Key Laboratory of Geophysics
Southern University of Science and Technology

科研成果: 会议稿件 › 论文 › 同行评审

3 引用（Scopus）

摘要

Trapezoid grid Finite Difference (FD) changes the grid size according to velocity variations. Comparing with the FD algorithm for uniform grid size decided by the minimum velocity, it is a memory-efficient wave modeling scheme due to the reduction of grid number. The area for computation is limited in size and the absorbing boundary conditions are applied to reduce the artificial reflections from model boundaries. In this paper, the Convolutional Perfect Matched Layer (CPML) absorbing condition is derived for the trapezoid grid isotropic acoustic wave equation. Effectiveness of the CMPL is demonstrated on the numerical simulation examples.

源语言	英语
页	3989-3993
页数	5
DOI	https://doi.org/10.1190/segam2018-2995754.1
出版状态	已出版 - 2019
活动	88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018 - Anaheim, 美国期限: 14 10月 2018 → 19 10月 2018

会议

会议	88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018
国家/地区	美国
市	Anaheim
时期	14/10/18 → 19/10/18

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10.1190/segam2018-2995754.1

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引用此

@conference{263b8b90d0364e14a15c5d4f9f88e741,

title = "Convolutional perfect matched layer boundary for trapezoid grid finite difference seismic modeling",

abstract = "Trapezoid grid Finite Difference (FD) changes the grid size according to velocity variations. Comparing with the FD algorithm for uniform grid size decided by the minimum velocity, it is a memory-efficient wave modeling scheme due to the reduction of grid number. The area for computation is limited in size and the absorbing boundary conditions are applied to reduce the artificial reflections from model boundaries. In this paper, the Convolutional Perfect Matched Layer (CPML) absorbing condition is derived for the trapezoid grid isotropic acoustic wave equation. Effectiveness of the CMPL is demonstrated on the numerical simulation examples.",

author = "Bangyu Wu and Wenhao Xu and Junxiong Jia and Bo Li and Hui Yang and Haixia Zhao and Jinghuai Gao",

note = "Publisher Copyright: {\textcopyright} 2018 SEG.; 88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018 ; Conference date: 14-10-2018 Through 19-10-2018",

year = "2019",

doi = "10.1190/segam2018-2995754.1",

language = "英语",

pages = "3989--3993",

}

Wu, B, Xu, W, Jia, J, Li, B, Yang, H, Zhao, H & Gao, J 2019, 'Convolutional perfect matched layer boundary for trapezoid grid finite difference seismic modeling', 论文发表于 88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018, Anaheim, 美国, 14/10/18 - 19/10/18 页码 3989-3993. https://doi.org/10.1190/segam2018-2995754.1

TY - CONF

T1 - Convolutional perfect matched layer boundary for trapezoid grid finite difference seismic modeling

AU - Wu, Bangyu

AU - Xu, Wenhao

AU - Jia, Junxiong

AU - Li, Bo

AU - Yang, Hui

AU - Zhao, Haixia

AU - Gao, Jinghuai

PY - 2019

Y1 - 2019

N2 - Trapezoid grid Finite Difference (FD) changes the grid size according to velocity variations. Comparing with the FD algorithm for uniform grid size decided by the minimum velocity, it is a memory-efficient wave modeling scheme due to the reduction of grid number. The area for computation is limited in size and the absorbing boundary conditions are applied to reduce the artificial reflections from model boundaries. In this paper, the Convolutional Perfect Matched Layer (CPML) absorbing condition is derived for the trapezoid grid isotropic acoustic wave equation. Effectiveness of the CMPL is demonstrated on the numerical simulation examples.

AB - Trapezoid grid Finite Difference (FD) changes the grid size according to velocity variations. Comparing with the FD algorithm for uniform grid size decided by the minimum velocity, it is a memory-efficient wave modeling scheme due to the reduction of grid number. The area for computation is limited in size and the absorbing boundary conditions are applied to reduce the artificial reflections from model boundaries. In this paper, the Convolutional Perfect Matched Layer (CPML) absorbing condition is derived for the trapezoid grid isotropic acoustic wave equation. Effectiveness of the CMPL is demonstrated on the numerical simulation examples.

UR - https://www.scopus.com/pages/publications/85056528312

U2 - 10.1190/segam2018-2995754.1

DO - 10.1190/segam2018-2995754.1

M3 - 论文

AN - SCOPUS:85056528312

SP - 3989

EP - 3993

T2 - 88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018

Y2 - 14 October 2018 through 19 October 2018

ER -

Convolutional perfect matched layer boundary for trapezoid grid finite difference seismic modeling

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