Multiscale aspects of waveform tomography

TitleMultiscale aspects of waveform tomography
Publication TypeConference
Year of Publication2011
AuthorsTristan van Leeuwen, Wim A. Mulder
Conference NameSIAMGEO
PublisherSIAM GeoSciences 2011
KeywordsPresentation
Abstract

We consider the inference of medium velocity from transmitted acoustic waves. Typically, the measurements are done in a narrow frequency band. As a result the sensitivity of the data with respect to velocity perturbations varies dramatically with the scale of the perturbation. ‘Smooth’ perturbations will cause a phase shift, whereas perturbations that vary on the wavelength-scale cause amplitude variations. We investigate how to incorporate this scale dependent behavior in the formulation of the inverse problem.

Presentation
Citation Keyvanleeuwen2011SIAMGEOmawt