Improving full waveform inversion with spectral extrapolation

TitleImproving full waveform inversion with spectral extrapolation
Publication TypePresentation
Year of Publication2015
AuthorsRongrong Wang, Felix J. Herrmann
KeywordsPresentation, SINBAD, SINBADFALL2015, SLIM

We develop a sparsity based frequency extrapolation method to obtain low frequency data from the high frequency ones. As other frequency extrapolation methods, the extrapolation introduces noise due to dispersion and possibly densely distributed reflectors. To mitigate such noise, we incorporate Curvlet coefficient regularization in the extrapolation algorithm. Numerical results demonstrate the effectiveness of the extrapolation in frequency domain FWI in models of moderate complexity.

Citation Keywang2015SINBADFifw