Show simple item record

dc.contributor.authorSun, Bingbing
dc.contributor.authorAlkhalifah, Tariq Ali
dc.date.accessioned2020-03-04T08:30:27Z
dc.date.available2020-03-04T08:30:27Z
dc.date.issued2019-08-26
dc.identifier.citationSun, B., & Alkhalifah, T. (2019). Adaptive Traveltime Inversion: Mitigating Cycle-Skipping by Minimization of the Moment of the Matching Filter Distribution. 81st EAGE Conference and Exhibition 2019. doi:10.3997/2214-4609.201900637
dc.identifier.doi10.3997/2214-4609.201900637
dc.identifier.urihttp://hdl.handle.net/10754/661869
dc.description.abstractWe present a method to obtain a misfit function for robust waveform inversion. This method, designated as adaptive traveltime inversion (ATI), computes a matching filter that matches the measured data to the predicted one. If the velocity model is accurate, the resulting matching filter reduces to an (approximate) Dirac delta function. Its traveltime shift, which characterizes the defocusing of the matching filter, is computed by minimization of the cross-correlation between a penalty function like $t$ and the matching filter. The ATI misfit function is constructed by the minimization of the least square error of the calculated traveltime shifts. Further analysis shows that the resulting traveltime shifts correspond to the first-order moment, the mean value, of the resulting matching filter distribution. We extend ATI to a more general misfit function formula by computing different order moment of the resulting matching filter distribution. Choosing the penalty function in adaptive waveform inversion (AWI) as $t$, the misfit function of AWI can be interpreted as the second-order moment. We use the Marmousi model to verify the effectiveness of the proposed method.
dc.description.sponsorshipWe thank KAUST for supporting this research and members of SWAG for useful discussions.
dc.publisherEAGE Publications
dc.relation.urlhttp://www.earthdoc.org/publication/publicationdetails/?publication=97653
dc.rightsArchived with thanks to EAGE Publications BV
dc.titleAdaptive traveltime inversion: Mitigating cycle-skipping by minimization of the moment of the matching filter distribution
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.conference.date2019-06-03 to 2019-06-06
dc.conference.name81st EAGE Conference and Exhibition 2019
dc.conference.locationLondon, GBR
dc.eprint.versionPre-print
kaust.personSun, Bingbing
kaust.personAlkhalifah, Tariq Ali
refterms.dateFOA2020-03-05T08:21:04Z
kaust.acknowledged.supportUnitmembers of SWAG


Files in this item

Thumbnail
Name:
ATI.pdf
Size:
5.855Mb
Format:
PDF
Description:
Accepted manuscript

This item appears in the following Collection(s)

Show simple item record