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Seismic modeling using the frozen Gaussian approximation

Publication ,  Conference
Yang, X; Lu, J; Fomel, S
Published in: SEG Technical Program Expanded Abstracts 2013
2013

We adopt the frozen Gaussian approximation (FGA) for modeling seismic waves. The FGA method belongs to the category of ray-based beam methods. It decomposes the seismic wavefield into a set of Gaussian functions and propagates these functions along appropriate ray paths. As opposed to the classic Gaussian-beam method, FGA keeps the Gaussians frozen (at a fixed width) during the propagation process and adjusts their amplitudes in order to produce an accurate approximation after summation. We perform the initial decomposition of seismic data using a fast version of the FBI (Fourier- Bros-Iagolnitzer) transform and propagate the frozen Gaussian beams numerically using ray tracing. A test using a smoothed Marmousi model confirms the validity of FGA for accurate modeling of seismic wavefields.

Duke Scholars

Published In

SEG Technical Program Expanded Abstracts 2013

Publication Date

2013

Start / End Page

4677 / 4682

Location

Houston

Publisher

Society of Exploration Geophysicists

Conference Name

SEG

Related Subject Headings

  • Geochemistry & Geophysics
 

Citation

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Yang, X., Lu, J., & Fomel, S. (2013). Seismic modeling using the frozen Gaussian approximation. In SEG Technical Program Expanded Abstracts 2013 (pp. 4677–4682). Houston: Society of Exploration Geophysicists.
Yang, Xu, Jianfeng Lu, and Sergey Fomel. “Seismic modeling using the frozen Gaussian approximation.” In SEG Technical Program Expanded Abstracts 2013, 4677–82. Society of Exploration Geophysicists, 2013.
Yang X, Lu J, Fomel S. Seismic modeling using the frozen Gaussian approximation. In: SEG Technical Program Expanded Abstracts 2013. Society of Exploration Geophysicists; 2013. p. 4677–82.
Yang, Xu, et al. “Seismic modeling using the frozen Gaussian approximation.” SEG Technical Program Expanded Abstracts 2013, Society of Exploration Geophysicists, 2013, pp. 4677–82.
Yang X, Lu J, Fomel S. Seismic modeling using the frozen Gaussian approximation. SEG Technical Program Expanded Abstracts 2013. Society of Exploration Geophysicists; 2013. p. 4677–4682.

Published In

SEG Technical Program Expanded Abstracts 2013

Publication Date

2013

Start / End Page

4677 / 4682

Location

Houston

Publisher

Society of Exploration Geophysicists

Conference Name

SEG

Related Subject Headings

  • Geochemistry & Geophysics