Preconditioning the time-harmonic acoustic wave equation based on a special contraction operator transformation

N. Yavich, M. Malovichko, N. Khokhlov, M. Zhdanov

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

Contemporary interest in full waveform inversion (FWI) drives development of 3D forward modeling algorithms. Performing FWI in the frequency domain effectively reduces an inverse problem to the series of monochromatic forward simulations. Still, forward modeling consumes bulk of the FWI run time. In this paper, we focus on efficient solution of the acoustic-wave equation. The most time-consuming step in numerical solution of the acoustic-wave equation is iterative solution of the arising system of linear equations. A slow convergence of iterative solvers is related to the spectral properties of the system matrix [Ernst and Gander, 2012]. Consequently, various preconditioning techniques were applied to this kind of problems.

Original languageEnglish
Title of host publication2nd Conference on Geophysics for Mineral Exploration and Mining
PublisherEuropean Association of Geoscientists and Engineers, EAGE
ISBN (Electronic)9789462822658
DOIs
Publication statusPublished - 2018
Externally publishedYes
Event2nd Conference on Geophysics for Mineral Exploration and Mining - Porto, Portugal
Duration: 9 Sep 201813 Sep 2018

Publication series

Name2nd Conference on Geophysics for Mineral Exploration and Mining

Conference

Conference2nd Conference on Geophysics for Mineral Exploration and Mining
Country/TerritoryPortugal
CityPorto
Period9/09/1813/09/18

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