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dc.contributor.authorZhang, Xiao-bo
dc.contributor.authorTan, Jun
dc.contributor.authorSong, Peng
dc.contributor.authorLi, Jin-shan
dc.contributor.authorXia, Dong-ming
dc.contributor.authorLiu, Zhaolun
dc.date.accessioned2017-06-08T09:42:44Z
dc.date.available2017-06-08T09:42:44Z
dc.date.issued2017-05-31
dc.identifier.citationZhang X, Tan J, Song* P, Li J, Xia D, et al. (2017) Time-domain full waveform inversion using the gradient preconditioning based on transmitted waves energy. International Geophysical Conference, Qingdao, China, 17-20 April 2017. Available: http://dx.doi.org/10.1190/igc2017-063.
dc.identifier.doi10.1190/igc2017-063
dc.identifier.urihttp://hdl.handle.net/10754/624890
dc.description.abstractThe gradient preconditioning approach based on seismic wave energy can effectively avoid the huge storage consumption in the gradient preconditioning algorithms based on Hessian matrices in time-domain full waveform inversion (FWI), but the accuracy is affected by the energy of reflected waves when strong reflectors are present in velocity model. To address this problem, we propose a gradient preconditioning method, which scales the gradient based on the energy of the “approximated transmitted wavefield” simulated by the nonreflecting acoustic wave equation. The method does not require computing or storing the Hessian matrix or its inverse. Furthermore, it can effectively eliminate the effects caused by geometric diffusion and non-uniformity illumination on gradient. The results of model experiments confirm that the time-domain FWI using the gradient preconditioning based on transmitted waves energy can achieve higher inversion precision for high-velocity body and the deep strata below when compared with using the gradient preconditioning based on seismic waves energy.
dc.description.sponsorshipThis work was supported by the National Natural Science Foundation of China (41574105).
dc.publisherSociety of Exploration Geophysicists
dc.relation.urlhttp://library.seg.org/doi/10.1190/IGC2017-063
dc.rightsArchived with thanks to International Geophysical Conference, Qingdao, China, 17-20 April 2017
dc.subjectfull waveform inversion
dc.subjecttime-domain
dc.subjectreflection
dc.titleTime-domain full waveform inversion using the gradient preconditioning based on transmitted waves energy
dc.typeConference Paper
dc.contributor.departmentEarth Science and Engineering Program
dc.contributor.departmentKing Abdullah University of Science and Technology
dc.identifier.journalInternational Geophysical Conference, Qingdao, China, 17-20 April 2017
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionOcean University of China & Qingdao National Laboratory for Marine Science and Technology & Key Lab of Submarine Geosciences and Prospecting Techniques Ministry of Education
kaust.personLiu, Zhaolun
refterms.dateFOA2018-06-14T03:53:14Z
dc.date.published-online2017-05-31
dc.date.published-print2017-05-31


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