Quantitative imaging of the elastic properties of the subsurface at depth is essential for civil
engineering applications and oil-and gas-reservoir characterization. A realistic synthetic …

For the last 30 yr, since Tarantola's pioneering theoretical study of waveform inversion,
geophysicists and applied mathematicians have utilized a waveform inversion to delineate …

Elastic full-waveform inversion is an ill-posed data-fitting procedure that is sensitive to noise,
inaccuracies of the starting model, definition of multiparameter classes, and inaccurate …

Assessing the effectiveness of elastic full-waveform-inversion (FWI) algorithms when applied
to shallow 2D structures in the presence of a complex topography is critically important. By …

Full waveform inversion (FWI) is an appealing seismic data-fitting procedure for the
derivation of high-resolution quantitative models of the subsurface at various scales. Full …

The study of seismic body waves is an integral aspect in global, exploration and engineering
scale seismology, where the forward modeling of waves is an essential component in …

Full-waveform inversion (FWI) suffers from the phase wrapping (cycle skipping) problem
when the frequency of data is not low enough. Unless we obtain a good initial velocity …

本文针对弹性波逆时偏移, 提出稳定的激发振幅成像条件. 在震源波场的正向传播过程中,
计算每个网格点的能量, 并保存最大能量密度的时刻和相应的波场值; 在检波器波场的逆时传播 …

Crosstalk-free source-encoded elastic Full-Waveform Inversion (FWI) using time-domain
solvers has demonstrated skill and efficiency at conducting seismic inversions involving …

In full-waveform inversion (FWI), a gradient-based update of the velocity model requires an
initial velocity that produces synthetic data that are within a half-cycle, everywhere, from the …