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• W2513142783 abstract "PreviousNext No AccessSEG Technical Program Expanded Abstracts 2016Seismic envelope inversion and renormalization group theory: Nonlinear scale separation and slow dynamicsAuthors: Ru-Shan WuJingrui LuoGuoxin ChenRu-Shan WuUniversity of California—Santa CruzSearch for more papers by this author, Jingrui LuoUniversity of California—Santa CruzSearch for more papers by this author, and Guoxin ChenZhejiang UniversitySearch for more papers by this authorhttps://doi.org/10.1190/segam2016-13962956.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Seismic envelope inversion can nonlinearly separate the response of large-scale structure from detailed structures. How can we obtain the ULF (ultra-low frequency) information from the data using sources without low-frequency? In this paper, we try to explain the envelope formation of seismic traces as a slow dynamics or evolution process of seismic wave scattering in complex earth media based on Wilson renormalization group (RG) theory. We then study what controls the slow dynamics and its relation with the smooth velocity structure of the complex, heterogeneous media. From the modulation signal model and the scattering process, we recognized that the forward-scattering renormalized Green's function is one of the control factors of the slow dynamics. We then generalize the envelope operator and introduce the average-flux envelope to improve the extraction of the slow dynamics. Finally we discuss the nonlinear scale separation based on the viewpoint of extracting the slow dynamics. Presentation Date: Thursday, October 20, 2016 Start Time: 8:30:00 AM Location: 162/164 Presentation Type: ORAL Keywords: divergence, full-waveform inversion, inversion, seismicPermalink: https://doi.org/10.1190/segam2016-13962956.1FiguresReferencesRelatedDetailsCited byBayesian full-waveform inversion in anisotropic elastic media using the iterated extended Kalman filterXingguo Huang, Kjersti Solberg Eikrem, Morten Jakobsen, and Geir Nævdal5 June 2020 | GEOPHYSICS, Vol. 85, No. 4On the applicability of a renormalized Born series for seismic wavefield modelling in strongly scattering media16 December 2019 | Journal of Geophysics and Engineering, Vol. 17, No. 2Taming the divergent terms in the scattering series of Born by renormalizationXingguo Huang, Morten Jakobsen, and Ru-Shan Wuy10 August 2019Seismic Envelope Inversion Based on Hybrid Scale Separation for Data with Strong Noises31 October 2018 | Pure and Applied Geophysics, Vol. 176, No. 1Multiscale Direct Envelope Inversion: Algorithm and Methodology for Application to the Salt Structure Inversion30 January 2019 | Earth and Space Science, Vol. 6, No. 1Reflection multi-scale envelope inversion21 June 2018 | Geophysical Prospecting, Vol. 66, No. 7Seismic waveform modeling in strongly scattering media using renormalization group theoryMorten Jakobsen, Ru-Shan Wu, and Xingguo Huang27 August 2018The nonlinear data functional and multiscale seismic envelope inversion: Algorithm and methodology for application to salt structure inversionGuoxin Chen, Ru-Shan Wu, and Shengchang Chen17 August 2017Full-Waveform Inversion II Complete Session17 August 2017 SEG Technical Program Expanded Abstracts 2016ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2016 Pages: 5654 publication data© 2016 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 01 Sep 2016 CITATION INFORMATION Ru-Shan Wu, Jingrui Luo, and Guoxin Chen, (2016), Seismic envelope inversion and renormalization group theory: Nonlinear scale separation and slow dynamics, SEG Technical Program Expanded Abstracts : 1346-1351. https://doi.org/10.1190/segam2016-13962956.1 Plain-Language Summary Keywordsdivergencefull-waveform inversioninversionseismicPDF DownloadLoading ..." @default.
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