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WEMVA theory

In this section, we summarize the main elements of wave-equation migration velocity analysis, by closely following the theory presented in Sava and Biondi (2004a,b). The reader familiar with those details can safely skip to the next section.

We begin with a quick discussion of wavefield scattering in the context of wavefield extrapolation and then define the objective function of our method and the linearized image perturbations which enable us to overcome the limitations of the first-order Born approximation.