FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2329712390> ?p ?o ?g. }

• W2329712390 abstract "PreviousNext No AccessSEG Technical Program Expanded Abstracts 2014Chebyshev expansion applied to the one-step wave extrapolation matrixAuthors: Reynam C. Pestana*Reynam C. Pestana*CPGG/UFBA and INCT-GP/CNPQSearch for more papers by this authorhttps://doi.org/10.1190/segam2014-0377.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract A new method of solving the acoustic one-step wave extrapolation matrix is proposed. In our method the analytical wavefield is separated in its real and imaginary parts and the first-order coupled set of equations is solved by the Tal-Ezer's technique, and Chebyshev expansion is used to approximate the extrapolate operator eAΔt, where A is an anti-symmetrical matrix and the pseudodifferential operator Ф is computed using the Fourier method. Thus, the proposed numerical algorithm can handle any velocity variation. Its implementation is straightforward and if an appropriate number of terms of the series expansion is chosen, the method is unconditionally stable and propagates seismic waves free of numerical dispersion. In our method the number of FFTs is explicitly determined and it is function of the maximum eigenvalue of the matrix A. Numerical modeling examples are shown to demonstrate that the proposed method has the capability to extrapolate waves in time using a time step up to Nyquist limit. Keywords: Fourier, acoustic, modeling, seismic, wave equationPermalink: https://doi.org/10.1190/segam2014-0377.1FiguresReferencesRelatedDetails SEG Technical Program Expanded Abstracts 2014ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2014 Pages: 5183 publication data© 2014 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished: 05 Aug 2014 CITATION INFORMATION Reynam C. Pestana*, (2014), Chebyshev expansion applied to the one-step wave extrapolation matrix, SEG Technical Program Expanded Abstracts : 3449-3453. https://doi.org/10.1190/segam2014-0377.1 Plain-Language Summary KeywordsFourieracousticmodelingseismicwave equationPDF DownloadLoading ..." @default.
• W2329712390 created "2016-06-24" @default.
• W2329712390 creator A5046403511 @default.
• W2329712390 date "2014-08-05" @default.
• W2329712390 modified "2023-09-27" @default.
• W2329712390 title "Chebyshev expansion applied to the one-step wave extrapolation matrix" @default.
• W2329712390 cites W2007439487 @default.
• W2329712390 cites W2034067297 @default.
• W2329712390 cites W2040682950 @default.
• W2329712390 cites W2076211048 @default.
• W2329712390 cites W2086479631 @default.
• W2329712390 cites W2107569287 @default.
• W2329712390 cites W2139305055 @default.
• W2329712390 cites W2140759344 @default.
• W2329712390 cites W2143146506 @default.
• W2329712390 doi "https://doi.org/10.1190/segam2014-0377.1" @default.
• W2329712390 hasPublicationYear "2014" @default.
• W2329712390 type Work @default.
• W2329712390 sameAs 2329712390 @default.
• W2329712390 citedByCount "0" @default.
• W2329712390 crossrefType "proceedings-article" @default.
• W2329712390 hasAuthorship W2329712390A5046403511 @default.
• W2329712390 hasConcept C104317684 @default.
• W2329712390 hasConcept C106487976 @default.
• W2329712390 hasConcept C11413529 @default.
• W2329712390 hasConcept C120665830 @default.
• W2329712390 hasConcept C121332964 @default.
• W2329712390 hasConcept C132459708 @default.
• W2329712390 hasConcept C134306372 @default.
• W2329712390 hasConcept C158448853 @default.
• W2329712390 hasConcept C158693339 @default.
• W2329712390 hasConcept C159985019 @default.
• W2329712390 hasConcept C17020691 @default.
• W2329712390 hasConcept C177562468 @default.
• W2329712390 hasConcept C185592680 @default.
• W2329712390 hasConcept C192562407 @default.
• W2329712390 hasConcept C21424316 @default.
• W2329712390 hasConcept C28826006 @default.
• W2329712390 hasConcept C33923547 @default.
• W2329712390 hasConcept C41008148 @default.
• W2329712390 hasConcept C55493867 @default.
• W2329712390 hasConcept C62520636 @default.
• W2329712390 hasConcept C75172450 @default.
• W2329712390 hasConcept C86339819 @default.
• W2329712390 hasConceptScore W2329712390C104317684 @default.
• W2329712390 hasConceptScore W2329712390C106487976 @default.
• W2329712390 hasConceptScore W2329712390C11413529 @default.
• W2329712390 hasConceptScore W2329712390C120665830 @default.
• W2329712390 hasConceptScore W2329712390C121332964 @default.
• W2329712390 hasConceptScore W2329712390C132459708 @default.
• W2329712390 hasConceptScore W2329712390C134306372 @default.
• W2329712390 hasConceptScore W2329712390C158448853 @default.
• W2329712390 hasConceptScore W2329712390C158693339 @default.
• W2329712390 hasConceptScore W2329712390C159985019 @default.
• W2329712390 hasConceptScore W2329712390C17020691 @default.
• W2329712390 hasConceptScore W2329712390C177562468 @default.
• W2329712390 hasConceptScore W2329712390C185592680 @default.
• W2329712390 hasConceptScore W2329712390C192562407 @default.
• W2329712390 hasConceptScore W2329712390C21424316 @default.
• W2329712390 hasConceptScore W2329712390C28826006 @default.
• W2329712390 hasConceptScore W2329712390C33923547 @default.
• W2329712390 hasConceptScore W2329712390C41008148 @default.
• W2329712390 hasConceptScore W2329712390C55493867 @default.
• W2329712390 hasConceptScore W2329712390C62520636 @default.
• W2329712390 hasConceptScore W2329712390C75172450 @default.
• W2329712390 hasConceptScore W2329712390C86339819 @default.
• W2329712390 hasLocation W23297123901 @default.
• W2329712390 hasOpenAccess W2329712390 @default.
• W2329712390 hasPrimaryLocation W23297123901 @default.
• W2329712390 hasRelatedWork W2088932963 @default.
• W2329712390 hasRelatedWork W2142538875 @default.
• W2329712390 hasRelatedWork W2160944598 @default.
• W2329712390 hasRelatedWork W2316250911 @default.
• W2329712390 hasRelatedWork W2360095388 @default.
• W2329712390 hasRelatedWork W3085325486 @default.
• W2329712390 hasRelatedWork W4287755916 @default.
• W2329712390 hasRelatedWork W4307123403 @default.
• W2329712390 hasRelatedWork W2327568211 @default.
• W2329712390 hasRelatedWork W2559253331 @default.
• W2329712390 isParatext "false" @default.
• W2329712390 isRetracted "false" @default.
• W2329712390 magId "2329712390" @default.
• W2329712390 workType "article" @default.