On the Scaling of the Update Direction for Multi-parameter Full Waveform Inversion: Applications to 2D Acoustic and Elastic Cases
Sign Up to like & getrecommendations! Published in 2017 at "Pure and Applied Geophysics"
DOI: 10.1007/s00024-017-1677-9
Abstract: Full waveform inversion (FWI) is traditionally designed as an iterative non-linear optimization problem. Thus, it is subject to scaling problems due to inappropriate choice of model parametrization. It is well known that the conventional gradient-based… read more here.
Keywords: full waveform; multi parameter; direction; parameter ... See more keywords
A numerical study of multi-parameter full waveform inversion with iterative regularization using multi-frequency vibroseis data
Sign Up to like & getrecommendations! Published in 2019 at "Computational Geosciences"
DOI: 10.1007/s10596-019-09897-6
Abstract: We study the inverse boundary value problem for time-harmonic elastic waves, for the recovery of P - and S -wave speeds from vibroseis data or the Neumann-to-Dirichlet map. Our study is based on our recent… read more here.
Keywords: full waveform; iterative regularization; vibroseis data; study ... See more keywords
Fast and automatic full waveform inversion by dual augmented Lagrangian
Sign Up to like & getrecommendations! Published in 2024 at "Computational Geosciences"
DOI: 10.1007/s10596-025-10375-5
Abstract: Full Waveform Inversion (FWI) stands as a nonlinear, high-resolution technology for subsurface imaging via surface-recorded data. This paper introduces an augmented Lagrangian dual formulation for FWI, rooted in the viewpoint that Lagrange multipliers serve as… read more here.
Keywords: augmented lagrangian; fwi; waveform inversion; inversion ... See more keywords
Reflection full waveform inversion
Sign Up to like & getrecommendations! Published in 2017 at "Science China Earth Sciences"
DOI: 10.1007/s11430-016-9091-9
Abstract: Because of the combination of optimization algorithms and full wave equations, full-waveform inversion (FWI) has become the frontier of the study of seismic exploration and is gradually becoming one of the essential tools for obtaining… read more here.
Keywords: reflection; full waveform; model; waveform inversion ... See more keywords
Q full-waveform inversion based on the viscoacoustic equation
Sign Up to like & getrecommendations! Published in 2019 at "Applied Geophysics"
DOI: 10.1007/s11770-019-0749-2
Abstract: Presently, most full-waveform inversion methods are developed for elastic media and ignore the effect of attenuation. The calculation of the quality factor Q is based on velocity parameter inversion under the assumption of a given… read more here.
Keywords: full waveform; inversion; viscoacoustic equation; equation ... See more keywords
An adaptive meshless parameterization for full waveform inversion
Sign Up to like & getrecommendations! Published in 2017 at "Engineering Analysis With Boundary Elements"
DOI: 10.1016/j.enganabound.2017.07.006
Abstract: Abstract Full waveform inversion is a technique to recover images of the subsurface using data from a seismic survey. Nonlinearity, ill-posedness, presence of noise in data, a large number of parameters, different kinds of parameters,… read more here.
Keywords: full waveform; methodology; inversion; meshless ... See more keywords
Acceleration for 2D time-domain elastic full waveform inversion using a single GPU card
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Geophysics"
DOI: 10.1016/j.jappgeo.2018.02.015
Abstract: Abstract Full waveform inversion (FWI) is a challenging procedure due to the high computational cost related to the modeling, especially for the elastic case. The graphics processing unit (GPU) has become a popular device for… read more here.
Keywords: full waveform; inversion; time; gpu ... See more keywords
Full waveform inversion based on time-integral-damping wavefield
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Applied Geophysics"
DOI: 10.1016/j.jappgeo.2019.02.019
Abstract: Abstract Full waveform inversion is a highly nonlinear inverse problem . Without an accurate initial model, it is difficult to obtain a global optimal solution because of cycle-skipping. In this paper we combine the Nth-order… read more here.
Keywords: inversion; time; time integral; full waveform ... See more keywords
Tomographic full waveform inversion using normalized integral wavefield
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Applied Geophysics"
DOI: 10.1016/j.jappgeo.2019.04.007
Abstract: Abstract Thanks to smooth intrinsic nature of normalized integral wavefield (NIW), full waveform inversion (FWI) using NIW has a potential to retrieve the long wavelength model parameters from seismic data even in the absence of… read more here.
Keywords: inversion; waveform inversion; normalized integral; integral wavefield ... See more keywords
Elastic full waveform inversion using plane-wave
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Applied Geophysics"
DOI: 10.1016/j.jappgeo.2019.103826
Abstract: Abstract Elastic full waveform inversion (FWI) is used to invert multicomponent data to obtain more accurate subsurface information; however, this method has a much higher computational cost than the acoustic method. In this study, the… read more here.
Keywords: inversion; plane wave; waveform inversion; full waveform ... See more keywords
Robust full-waveform inversion using q-statistics
Sign Up to like & getrecommendations! Published in 2020 at "Physica A: Statistical Mechanics and its Applications"
DOI: 10.1016/j.physa.2020.124473
Abstract: Abstract Imaging of the subsurface is central in seismic exploration and a topic of great economic interest. A promising technique for seismic imaging is a wave-equation-based method called full-waveform inversion (FWI). FWI is a data-fitting… read more here.
Keywords: gaussian distribution; full waveform; waveform inversion;