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In a helical coordinate system Claerbout (1997),
calculation of shaping filters can be formulated as an
autoregression.
If we concatenate the two datasets being matched, and ensure that
filter lags span the two datasets, then the shaping filter is
identical to the prediction-filter that is used to predict the second
dataset from the first.
This convenient observation allows reuse of both codes and concepts.

Stanford Exploration Project

4/27/2000