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- W2334851930 abstract "PreviousNext No Access13th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 26–29 August 2013Full Waveform Inversion: Comparison between Different Objective FunctionalsAuthors: A. BulcãoD.M. Soares FilhoF.P. LoureiroG.C. AlvesF.F. FariasL.A. SantosA. BulcãoPetrobrasSearch for more papers by this author, D.M. Soares FilhoPetrobrasSearch for more papers by this author, F.P. LoureiroPetrobrasSearch for more papers by this author, G.C. AlvesPetrobrasSearch for more papers by this author, F.F. FariasPetrobrasSearch for more papers by this author, and L.A. SantosPetrobrasSearch for more papers by this authorhttps://doi.org/10.1190/sbgf2013-067 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract This work compares different types of objective functionals that may be used in the formulation of the inversion methodology called Full Waveform Inversion. The behavior of the inversion scheme is related to the choice of this functional, which provides a measure that quantifies the discrepancy between the observation (real seismic data) and the prediction (simulated data corresponding to a set of model parameters) [FICHTNER, 2010]. For the inversion scheme to converge to an acceptable solution, applying gradient based methods, in a reasonable number of iterations and without being trapped in a local minimum, two factors are important: the space solution topology and its derivatives in relation to the model parameters specified. Both factors are strongly connected to the choice of the employed objective functional [FICHTNER, 2010]. The behaviors of different objective functionals were analyzed using synthetic examples based on the Marmousi model. Data sets were created considering the acoustic wave equation and presence or absence of additive random noise. Keywords: South America, full waveform, inversion, seismic, imaging, acquisition, interpretationPermalink: https://doi.org/10.1190/sbgf2013-067FiguresReferencesRelatedDetailsCited ByReferences16 June 2017 13th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 26–29 August 2013ISSN (online):2159-6832Copyright: 2013 Pages: 2001 publication data© 2013 Published in electronic format with permission by the Brazilian Geophysical SocietyPublisher:Society of Exploration Geophysicists HistoryPublished: 09 Jan 2014 CITATION INFORMATION A. Bulcão, D.M. Soares Filho, F.P. Loureiro, G.C. Alves, F.F. Farias, and L.A. Santos, (2013), Full Waveform Inversion: Comparison between Different Objective Functionals, SEG Global Meeting Abstracts : 312-316. https://doi.org/10.1190/sbgf2013-067 Plain-Language Summary KeywordsSouth Americafull waveforminversionseismicimagingacquisitioninterpretationPDF DownloadLoading ..." @default.
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- W2334851930 title "Full Waveform Inversion: Comparison between Different Objective Functionals" @default.
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