Pure P-Wave Equation Modeling in Vertical Transverse Isotropic (VTI) Medium Using Pseudo-Analytical Method

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Abstract:

In isotropic media, P-and SV-waves are coupled. For computational efficiency, we studied a separated pure P-wave VTI wave acoustic approximate equation. And to solve the Pure P-wave equation, we generalized the pseudo-analytical method to isotropic media, which has batter accuracy than conventional pseudo spectral method. Numerical simulation result shows that pure P-wave VTI wave equation not only accurately described the P-wave field characteristics, but also eliminated the pseudo SV-wave artifact in conventional coupled quasi P-wave equation, and made the wave field propagation more stable and less dispersion error.

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3776-3779

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October 2013

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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