A reduced cost implementation of low-rank approximation for anisotropic wave propagation Article Swipe

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Luize Baltazar , Iury Araújo , Murillo do Nascimento , Jessé C. Costa ·

YOU? · · 2019 · Open Access · · DOI: https://doi.org/10.22564/16cisbgf2019.014

The simulation of wavefield propagation in anisotropic media is essential to produce subsurface images.Low-rank approximation allows one to obtain a numerical approximation of wavefield evolution operator that honors the kinematics and approximates amplitudes in heterogeneous anisotropic media.Here we discuss our implementation of low-rank approximation for anisotropic wave propagation in 2D and 3D.The main feature of our investigation is the use of row action methods to considerably reduce storage when computing the low-rank matrix.We validate our implementation in 2D and 3D for TTI and tilted orthorhombic media.

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Anisotropy Computer science Rank (graph theory) Wave propagation Approximation algorithm Mathematical optimization Physics Mathematics Algorithm Optics Combinatorics

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Type: article
Language: en
Landing Page: http://doi.org/10.22564/16cisbgf2019.014
PDF: https://doi.org/10.22564/16cisbgf2019.014
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References: 5
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DOI: https://doi.org/10.22564/16cisbgf2019.014

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Title: A reduced cost implementation of low-rank approximation for anisotropic wave propagation

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Publication year: 2019

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Publication date: 2019-01-01

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Authors: Luize Baltazar, Iury Araújo, Murillo do Nascimento, Jessé C. Costa

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Landing page: https://doi.org/10.22564/16cisbgf2019.014

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Concepts: Anisotropy, Computer science, Rank (graph theory), Wave propagation, Approximation algorithm, Mathematical optimization, Physics, Mathematics, Algorithm, Optics, Combinatorics

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