Abstract
Full Waveform Inversion (FWI) has been regarded as an effective tool to build the velocity model for the following pre-stack depth migration. While traditional methods, which are built on the Born approximation, are initial model dependent. Introducing Transmission matrix (Tmatrix), which includes all orders of scattering effects, can avoid the initial model dependence. From the T-matrix to estimate the velocity perturbation, it requires matrix inversion which is always time consuming. In order to achieve that efficiently, previously we have proposed Inverse Thin-Slab Propagator (ITSP) which is suitable for smooth media, and we study domain decomposition strategy to estimate the velocity perturbation efficiently in this abstract. Numerical examples demonstrate the validity of the proposed method.
Published Version
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