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With appropriate choice of reference model, model-space weighting
functions based on equation () provide a
robust way to compensate for illumination problems during recursive
(finite-frequency) depth migration.
Data-space weights can also be calculated either to work alone, or in
consort with model-space weights.
However, for the overdetermined example described here, they are less
robust to errors caused by inadequate forward modeling.

Stanford Exploration Project

5/27/2001