Tomographic full waveform inversion and linear modeling of multiple scattering

Conclusions

Perturbations in the propagating wavefield caused by multiple scattering can be approximately modeled by a linear operator when the velocity function is extended in time. A tomographic full waveform method based on a time extension of the velocity model is likely to have attractive global-convergence characteristics, and thus to overcome one of the main challenges of conventional full waveform inversion.