文献类型：期刊文献

英文题名：An Acoustic Wave-Equation Depth Migration Method Using Generalized Two-Way Phase Shift Operator for Anisotropic Media

作者：Li, Anyu[1];Li, Canping[2];Lai, Fuqiang[1];Liao, Jianping[1];Liu, Tao[3]

机构：[1]Chongqing Univ Sci & Technol, Sch Petr & Nat Gas Engn, Chongqing 401331, Peoples R China;[2]Guangdong Ocean Univ, Sch Elect & Informat Engn, Zhanjiang 524088, Peoples R China;[3]Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China

年份：2025

卷号：22

外文期刊名：IEEE GEOSCIENCE AND REMOTE SENSING LETTERS

收录：SCI-EXPANDED(收录号：WOS:001459514500004)、、EI(收录号：20251218060687)、Scopus(收录号：2-s2.0-105002692046)、WOS

基金：This work was supported in part by the National Natural Science Foundation of China under Grant 42474169, in part by Guangdong Basic and Applied Basic Research Foundation under Grant 2023A1515012041, and in part by the Research Foundation of Chongqing University of Science and Technology under Grant ckrc20241203.

语种：英文

外文关键词：Anisotropic; Media; Anisotropic magnetoresistance; Imaging; Mathematical models; Acoustic waves; Propagation; MOS devices; Acoustics; Finite difference methods; Anisotropy; depth migration; full wave equation; vertical transversely isotropic (VTI)

外文摘要：Since subsurface structures are often anisotropic, conventional anisotropic acoustic wave-equation depth migration methods are generally limited to one-way wave equations. In contrast, two-way wave-equation depth migration (TWDM) offers superior imaging capabilities to the one-way wave migration method. This study advances seismic imaging by extending full acoustic wave-equation depth migration to vertical transversely isotropic (VTI) media. It utilizes a generalized two-way phase shift propagator and the Thomas dispersion equation to address the complexities of anisotropic media. This approach performs the generalized phase operator without lateral velocity approximation and significantly enhances subsurface imaging amplitudes due to the complete wave equation used. Numerical examples illustrate the effectiveness and superiority of the proposed method.