Asymptotically Corrected Krylov Subspace Model Order Reduction of Wavefields in Travel-Time Dominated Structures

J. Zimmerling, V.L. Druskin, R. Remis, M. Zaslavsky

Research output: Contribution to conferenceAbstractScientific

Abstract

In this talk we present travel time or asymptotically corrected Krylov subspace methods to efficiently compute time- and frequency-domain wavefields in inhomogeneous structures. Fields characterized by large travel times can be effectively captured, by adding travel time information to parameter dependent Rational Krylov subspaces. This method provides reduced-order models of small order,
which can be incorporated in wavefield inversion schemes. Numerical experiments will be presented that illustrate the performance of the method.
Original languageEnglish
Pages110
Number of pages1
Publication statusPublished - 2016
Event2016 SIAM Annual Meeting - Boston, MA, United States
Duration: 11 Jul 201615 Jul 2016
http://www.siam.org/meetings/an16/

Conference

Conference2016 SIAM Annual Meeting
Abbreviated titleSIAM
CountryUnited States
CityBoston, MA
Period11/07/1615/07/16
Internet address

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