Seismic waveform inversion with Gauss-Newton-Krylov method

Yogi Erlangga Ahmad, Felix J. Herrmann

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This abstract discusses an implicit implementation of the Gauss-Newton method, used for the frequency-domain full-waveform inversion, where the inverse of the Hessian for the update is never formed explicitly. Instead, the inverse of the Hessian is computed approximately by a conjugate gradient (CG) method, which only requires the action of the Hessian on the CG search direction. This procedure avoids an excessive computer storage, usually needed for storing the Hessian, at the expense of extra computational work in CG. An effective preconditioner for the Hessian is important to improve the convergence of CG, and hence to reduce the overall computational work.

Original languageEnglish
Title of host publication79th Society of Exploration Geophysicists International Exposition and Annual Meeting 2009, SEG 2009
PublisherSociety of Exploration Geophysicists
Pages2357-2361
Number of pages5
ISBN (Print)9781615675661
Publication statusPublished - Jan 1 2009
Event79th Society of Exploration Geophysicists International Exposition and Annual Meeting 2009, SEG 2009 - Houston, United States
Duration: Oct 25 2009Oct 30 2009

Other

Other79th Society of Exploration Geophysicists International Exposition and Annual Meeting 2009, SEG 2009
CountryUnited States
CityHouston
Period10/25/0910/30/09

ASJC Scopus subject areas

  • Geophysics

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  • Cite this

    Erlangga Ahmad, Y., & Herrmann, F. J. (2009). Seismic waveform inversion with Gauss-Newton-Krylov method. In 79th Society of Exploration Geophysicists International Exposition and Annual Meeting 2009, SEG 2009 (pp. 2357-2361). Society of Exploration Geophysicists.