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- W2890939196 abstract "PreviousNext No AccessSEG Technical Program Expanded Abstracts 2018Accelerated acoustic least-squares migrationAuthors: Raanan DafniWilliam W. SymesRaanan DafniThe Rice Inversion Project, Rice UniversitySearch for more papers by this author and William W. SymesThe Rice Inversion Project, Rice UniversitySearch for more papers by this authorhttps://doi.org/10.1190/segam2018-2997068.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Least squares migration cost depends on the number of iterations required to produce a satisfactory image volume and/or fit to data. The cost can be reduced considerably through effective preconditioning. One such preconditioner derives from true-amplitude or asymptotic approximate inversion. We describe implementation details of a true-amplitude preconditioned least squares migration algorithm, and illustrate its performance using a synthetic 2D example. Presentation Date: Tuesday, October 16, 2018 Start Time: 1:50:00 PM Location: 207A (Anaheim Convention Center) Presentation Type: Oral Keywords: least-squares migration, acoustic, numericalPermalink: https://doi.org/10.1190/segam2018-2997068.1FiguresReferencesRelatedDetailsCited byEfficient computation of extended surface sources23 February 2023 | GEM - International Journal on Geomathematics, Vol. 14, No. 1Angle‐domain imaging of relative impedance perturbation7 August 2020 | Geophysical Prospecting, Vol. 68, No. 8 SEG Technical Program Expanded Abstracts 2018ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2018 Pages: 5520 publication data© 2018 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 27 Aug 2018 CITATION INFORMATION Raanan Dafni and William W. Symes, (2018), Accelerated acoustic least-squares migration, SEG Technical Program Expanded Abstracts : 4291-4295. https://doi.org/10.1190/segam2018-2997068.1 Plain-Language Summary Keywordsleast-squares migrationacousticnumericalPDF DownloadLoading ..." @default.
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