Publications [#243748] of Jianfeng Lu

Papers Published

1. Yang, X; Lu, J; Fomel, S, Seismic modeling using the frozen Gaussian approximation, in SEG Technical Program Expanded Abstracts 2013, SEG Technical Program Expanded Abstracts 2013 (2013), pp. 4677-4682, Society of Exploration Geophysicists, ISBN 9781629931883 [arXiv:1304.3542], [1], [doi]
   (last updated on 2024/04/24)

   Abstract:
   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.