f Multiple suppression by multi-channel predictive deconvolution

Since its inception deconvolution has become one of the standard tools of seismic data processing. It is used to suppress reverberations, wavelet shaping and suppression of short and long period multiples, most of the instances, all at the same time. Failure of single channel predictive deconvolution of suppressing multiples longer than 200 millisecond period led to developments of alternate methods, most of which involve with the multichannel processes. Prediction across the channels in the radial direction (Taner, 1980) and using slant stack traces (Alam and Austin, 1981) have been successful for sirnpler water bottom geometries. Of the multi-channel processes for general multiple suppression the ones using the wave equation continuation to predict the multiple arrival times (Morley, 1982; Wiggins, 1985) had a physical basis, hence more promise for success. The rest were various forms of multi-channel filters.