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dc.contributor.authorSun, Bingbing
dc.contributor.authorAlkhalifah, Tariq Ali
dc.date.accessioned2017-08-23T11:54:07Z
dc.date.available2017-08-23T11:54:07Z
dc.date.issued2017-08-17
dc.identifier.citationSun B, Alkhalifah T (2017) Wavefield separation by energy norm Born scattering. SEG Technical Program Expanded Abstracts 2017. Available: http://dx.doi.org/10.1190/segam2017-17557895.1.
dc.identifier.doi10.1190/segam2017-17557895.1
dc.identifier.urihttp://hdl.handle.net/10754/625396
dc.description.abstractIn Reflection Based Waveform Inversion, the gradient is computed by cross-correlating the direct and Born scattered wavefield with their adjoints applied to the data residuals. In this case, the transmitted part of the Born scattered wavefield produces high wavenumber artifacts, which would harm the convergence of the inversion process. We propose an efficient Energy Norm Born Scattering (ENBS) to attenuate the transmission components of the Born modeling, and allow it to produce only reflections. ENBS is derived from the adjoint of the Energy Norm (inverse scattering) imaging condition and in order to get deeper insights of how this method works, we show analytically that given an image, in which reflectivity is represented by a Dirac delta function, ENBS attenuates transmission energy perfectly. We use numerical examples to demonstrate that ENBS works in both the time and the frequency domain. We also show that in reflection waveform inversion (RWI) the wave path constructed by ENBS would be cleaner and free of high wavenumber artifacts associated with conventional Born scattering.
dc.publisherSociety of Exploration Geophysicists
dc.relation.urlhttp://library.seg.org/doi/10.1190/segam2017-17557895.1
dc.rightsArchived with thanks to SEG Technical Program Expanded Abstracts 2017
dc.subjectinversion
dc.subjectwave propagation
dc.subjectwave equation
dc.titleWavefield separation by energy norm Born scattering
dc.typeConference Paper
dc.contributor.departmentEarth Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentSeismic Wave Analysis Group
dc.identifier.journalSEG Technical Program Expanded Abstracts 2017
dc.eprint.versionPublisher's Version/PDF
kaust.personSun, Bingbing
kaust.personAlkhalifah, Tariq Ali
refterms.dateFOA2018-06-13T18:46:07Z
dc.date.published-online2017-08-17
dc.date.published-print2017-08-17


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