Tomographic full waveform inversion and linear modeling of multiple scattering

Tomographic full waveform inversion and linear modeling of multiple scattering

Biondo Biondi

Abstract:

I present a tomographic full waveform inversion method that is based to an extension of the velocity model in time. The resulting wavefield modeling operator is linear with respect to the non-zero time lags of the extended velocity, but can effectively model multiple scattering caused by velocity perturbations. This property is attractive to achieve robust global convergence in a waveform inversion algorithm. A simple 1D numerical example illustrates the properties of the new modeling operator and its promises for robust waveform inversion.