%0 Journal Article
%T Modeling 3-D scalar waves using the Fourier finite-difference method<br>傅里叶有限差分法三维波动方程正演模拟
%A ZHANG Jin-Hai
%A WANG Wei-Min
%A ZHAO Lian-Feng
%A YAO Zhen-Xing
%A <br>张金海
%J 地球物理学报
%D 2007
%I 
%X Fourier finite-difference(FFD) operator has both of the advantages of Fourier and finite-difference methods,it can handle the wave propagations in complex media with large velocity contrasts and wide propagation angles.In 3-D case,however,two-way splitting may cause artificial azimuthal anisotropy.In this paper,we handle the remnants of the conventional two-way splitting technique by Fourier transforms,and the azimuthal anisotropy is removed.Based on the dual-domain scheme of the FFD method,the proposed algorithm significantly reduces computational cost caused by error correction.Compared with the finite-difference method by the zero-offset records and shot profiles based on 3-D modified French model,the proposed method can properly model the primary reflected waves and is much more attractive in both computational cost and storage demand.
%K 3-D modeling
%K Fourier finite-difference
%K Two-way splitting
%K Wave equation<br>三维正演模拟
%K 傅里叶有限差分
%K 双向分裂
%K 波动方程
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=14DC41C59CBF6770055A7D610D53AE46&aid=EA4399EF7459437BB033A284BF1D90C6&yid=A732AF04DDA03BB3&vid=771152D1ADC1C0EB&iid=B31275AF3241DB2D&sid=0ADDA70032243493&eid=1A1522797E8D4D41&journal_id=0001-5733&journal_name=地球物理学报&referenced_num=6&reference_num=27