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The standard approach in seismic data processing is to attenuate the multiples
before imaging, that is, in data space.
Most algorithms for the attenuation of multiples in data space are based on
three main characteristics
of the multiples: (1) their periodicity in arrival time (predictive deconvolution),
(2) their difference in moveout with respect to the primaries in CMPs
(- and - filtering) and (3) their predictability as the
auto-convolution of the primaries (Surface Related Multiple Elimination (SRME)).
Each of these approaches have distinctive advantages and disadvantages.