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

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

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

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

Signal Processing Systems

Research output: Contribution to conference › Abstract › Scientific

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 language	English
Pages	110
Number of pages	1
Publication status	Published - 2016
Event	2016 SIAM Annual Meeting - Boston, MA, United States Duration: 11 Jul 2016 → 15 Jul 2016 http://www.siam.org/meetings/an16/

Conference

Conference	2016 SIAM Annual Meeting
Abbreviated title	SIAM
Country/Territory	United States
City	Boston, MA
Period	11/07/16 → 15/07/16
Internet address	http://www.siam.org/meetings/an16/

Cite this

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title = "Asymptotically Corrected Krylov Subspace Model Order Reduction of Wavefields in Travel-Time Dominated Structures",

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.",

author = "J. Zimmerling and V.L. Druskin and R. Remis and M. Zaslavsky",

year = "2016",

language = "English",

pages = "110",

note = "2016 SIAM Annual Meeting, SIAM ; Conference date: 11-07-2016 Through 15-07-2016",

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TY - CONF

T1 - Asymptotically Corrected Krylov Subspace Model Order Reduction of Wavefields in Travel-Time Dominated Structures

AU - Zimmerling, J.

AU - Druskin, V.L.

AU - Remis, R.

AU - Zaslavsky, M.

PY - 2016

Y1 - 2016

N2 - 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.

AB - 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.

M3 - Abstract

SP - 110

T2 - 2016 SIAM Annual Meeting

Y2 - 11 July 2016 through 15 July 2016

ER -

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

Abstract

Conference

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