Abstract
A disadvantage of using explosive charges in underwater acoustic experiments is the undesired influence from the bubble pulses. Considering the phenomenon under investigation as a linear system, the effect of the bubble pulses can be removed by applying the technique of deconvolution or inverse filtering. This operation can best be performed on a digital computer. By using the Fast Fourier Transform, the deconvolution operation can be conveniently done in the frequency domain considerably faster than it could be done previously. An example of deconvolution for the removal of the bubble pulses in connection with bottom-reflection studies is demonstrated.
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