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. 中国科学院油气资源研究重点实验室
Stable optimization of finite-difference operators for seismic wave modeling

文献类型：期刊论文

作者Wang, Jian1; Hong, Liu2
刊名STUDIA GEOPHYSICA ET GEODAETICA
出版日期2020-09-03
页码13
关键词finite difference window function cosine function elastic wave multiple GPU
ISSN号0039-3169
DOI10.1007/s11200-019-0487-1
英文摘要The finite difference scheme is now widely used in the reverse time migration and full waveform inversion. Their results are dependent on the accuracy of finite difference operators. In this paper, we combine the cosine function with the original window function to construct a new window function, in order to obtain higher precision finite difference operators. The absolute error curves of the optimized finite difference operators are close to zero for low wavenumbers. In other words, we do not observe an oscillating curve of absolute errors produced by other optimized methods. In order to overcome the limitations of a single graphics processing unit (GPU), we developed the multiple-GPU method for the elastic wave equation. Numerical experimental results show that our new window function can control the numerical dispersion better than the binomial window and scaled binomial window, and the multiple-GPU computation is very stable.
WOS关键词PROPAGATION ; ACCURACY ; EQUATION ; MEDIA
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000565859900001
出版者SPRINGER
源URL[http://ir.iggcas.ac.cn/handle/132A11/97778]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Wang, Jian
作者单位1.Chinese Acad Sci, Inst Acoust, State Key Lab Acoust, Beijing 100190, 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		 Wang, Jian,Hong, Liu. Stable optimization of finite-difference operators for seismic wave modeling[J]. STUDIA GEOPHYSICA ET GEODAETICA,2020:13.
APA Wang, Jian,&Hong, Liu.(2020).Stable optimization of finite-difference operators for seismic wave modeling.STUDIA GEOPHYSICA ET GEODAETICA,13.
MLA Wang, Jian,et al."Stable optimization of finite-difference operators for seismic wave modeling".STUDIA GEOPHYSICA ET GEODAETICA (2020):13.

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。