Time staggered difference for pseudospectral differentiation openrator and its application in 3-D heterogeneous medium

被引：0

作者：

Wu Ye ^{[1
,2
]}

Li Xiao-Fan ^{[2
]}

Gu Guan-Wen ^{[3
]}

Zhang Mei-Gen ^{[2
]}

Long Gui-Hua ^{[2
]}

Zhao Xiao-Yan ^{[1
]}

机构：

[1] Inst Disaster Prevent Sci & Technol, Beijing 065201, Yanjiao, Peoples R China

[2] Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China

[3] Inst Geophys & Geochem Explorat, Langfang 065000, Peoples R China

来源：

CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION | 2008年 / 51卷 / 06期

关键词：

Elastic wave; FFT; Numerical simulation; Pseudospectral; 3-D;

D O I：

暂无

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

A new fast differentiation operator, "pseudospectral time-staggered difference operator", is proposed in this paper. The accuracy of this method is four time of the normal pseudospectral method. It is confirmed that the numerical dispersion of this method is less than that of normal pseudospectral method by comparing the calculation result of Marmousi model. The new operation is applied to simulate seismic wave propagation in 3-D heterogeneous medium, and the results show that the time-staggered difference operator for the pseudospectral method is valid for the seismic wave simulation in the complex heterogeneous medium.

引用

页码：1868 / 1875

页数：8

共 21 条

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