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Expanding domain method for 3D time-Laplace-domain hybrid modeling
Efficient wave propagation modeling is crucial for an efficient full waveform inversion (FWI). We adopt the expanding domain method to generate three-dimensional (3D) Laplace-domain wavefields. The Laplace-domain wavefields can be obtained by Laplace-transforming the time-domain wavefields. We accelerate the generation of Laplace-domain wavefields by applying the expanding domain method not only to the time domain wave propagation, but also to the Laplace transform by running integration. We compare three domain-expansion criteria and demonstrate that the absolute value criterion using is applicable to the Laplace domain. The method can be applied to 3D FWIs using time-domain modeling to generate Laplace or frequency domain wavefields.
Expanding domain method for 3D time-Laplace-domain hybrid modeling
Efficient wave propagation modeling is crucial for an efficient full waveform inversion (FWI). We adopt the expanding domain method to generate three-dimensional (3D) Laplace-domain wavefields. The Laplace-domain wavefields can be obtained by Laplace-transforming the time-domain wavefields. We accelerate the generation of Laplace-domain wavefields by applying the expanding domain method not only to the time domain wave propagation, but also to the Laplace transform by running integration. We compare three domain-expansion criteria and demonstrate that the absolute value criterion using is applicable to the Laplace domain. The method can be applied to 3D FWIs using time-domain modeling to generate Laplace or frequency domain wavefields.
Expanding domain method for 3D time-Laplace-domain hybrid modeling
Ryu, Donghyun (author) / Kim, Ahreum (author) / Ha, Wansoo (author)
Geosystem Engineering ; 18 ; 259-265
2015-09-03
7 pages
Article (Journal)
Electronic Resource
English
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