THE APPLICATION OF HOMOMORPHIC DECONVOLUTION TO SHALLOW‐WATER MARINE SEISMOLOGY—PART II: REAL DATA

Abstract

The application of the techniques of Part I to seismic reflection data acquired on the Argentine continental shelf yields results which appear superior to time‐domain, minimum‐phase inverse filtering via the auto‐correlation function. This is in part because of a narrow‐band, maximum‐phase source component. Minimum‐phase deconvolution disperses this component rather than compressing it. Very slight exponential weighting [Formula: see text] appears to make the reflector series minimum phase. This weighting in conjunction with quadrupling the trace length by extending it with zeros virtually eliminates aliasing in the complex cepstrum. Simple zeroing of the complex‐cepstrum terms works well as a deconvolution technique even though for exactness their harmonics at longer cepstrum periods should also be removed.