Artifact reduction in pseudo-acoustic modeling by pseudo-source injection

TL;DR

This paper introduces a fast finite-difference algorithm for acoustic wave modeling in anisotropic media, significantly reducing shear artifacts and improving accuracy in transversely isotropic media.

Contribution

It presents a novel framework for deriving efficient finite-difference algorithms specifically tailored for anisotropic media, enhancing modeling accuracy.

Findings

Significant reduction of shear artifacts in simulations.

Implementation of a kinematically accurate modeling method.

Improved computational efficiency in anisotropic media modeling.

Abstract

I provide a framework for deriving fast finite-difference algorithms for the numerical modeling of acoustic wave propagation in anisotropic media. I deploy it in the case of transversely isotropic media to implement a kinematically accurate fast finite-difference modeling method. This results in a significant reduction of the shear artifacts compared to similar kinematically accurate finite-difference methods.