Wavefield-reconstruction inversion

TitleWavefield-reconstruction inversion
Publication TypeConference
Year of Publication2015
AuthorsBas Peters, Felix J. Herrmann
Conference NameConference on Applied Inverse Problems
KeywordsAIP, Full-waveform inversion, Optimization, penalty method, Waveform reconstruction inversion

Wavefield Reconstruction Inversion is a method for PDE-constrained optimization, which revolves around the estimation of fields using the PDE as well as the observed data in a least-squares sense. The method is quadratic penalty based, which offers some interesting possibilities for the construction of algorithms, compared to the Lagrangian form. One of the main benefits of the method is when the initial guess is far from the global minimizer. Reduced-space and full-space algorithms are discussed, including illustrative examples. The method was developed with seismic applications in mind, but applies to other PDE-constrained optimization problems as well.


(AIP, Helsinki)

Citation Keypeters2015AIPwri