Robust FWI using Student's t-distribution

TitleRobust FWI using Student's t-distribution
Publication TypeConference
Year of Publication2011
AuthorsAleksandr Y. Aravkin, Tristan van Leeuwen, Felix J. Herrmann
Conference NameICIAM
PublisherICIAM 2011
KeywordsFull-waveform inversion, ICIAM, Optimization, SLIM

Iterative inversion algorithms require repeated simulation of 3D time-dependent acoustic, elastic, or electromagnetic wave fields, extending hundreds of wavelengths and hundreds of periods. Also, seismic data is rich in information at every representable scale. Thus simulation-driven optimization approaches to inversion impose great demands on simulator efficiency and accuracy. While computer hardware advances have been of critical importance in bringing inversion closer to practical application, algorithmic advances in simulator methodology have been equally important. Speakers in this two-part session will address a variety of numerical issues arising in the wave simulation, and in its application to inversion.

Citation Keyaravkin2011ICIAMrfwiu