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Seismic Imaging with Multiply Scattered Waves September 27, 2010
Parent Program: --
Location: MSRI: Simons Auditorium
Speaker(s) Alison Malcolm
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Most seismic imaging algorithms assume single-scattering, because this linearizes the inverse problem. Multiply-scattered energy can be significant, however, especially if there are strong reflectors in the model. We setup a series expansion that allows for the inclusion of multipy-scattered waves through a sequence of linear problems rather than a single nonlinear problem. This results in an iterative algorithm for imaging with multiply-scattered waves that allows the imaging of structures not illuminated by singly scattered waves by constructing a sequence of images of the subsurface. A downside of this approach is the dependence of subsequent images on previous ones; extensions to mitigate this problem will also be discussed.

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