Using a Nonlinear Acoustic Wave Equation for Anisotropic Inversion
Seg Technical Program Expanded Abstracts(2015)
摘要
In this abstract, we present some initial results on a specific nonlinear pseudoacoustic wave equation in anisotropic media, including forward modeling, linearization, and the adjoint method. Our objective is to find a robust and efficient method for anisotropic full-waveform inversion (FWI). The forward modeling equation is solved discretely by the rotated staggered finite difference scheme. The first-order Born modeling operator is obtained by linearizing the forward equation. Following adjoint methods, we derived the adjoint equation and tested it on simple models. Our results demonstrate a possibility for waveform inversion in anisotropic media.
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关键词
nonlinear acoustic wave equation,inversion
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