The manner null which optimizes the frequency spectrum of the impulse which is emitted by the emission device which includes multiple earth wave implosion sources

摘要

A process is provided for optimizing the frequency spectrum of pulses emitted by implosion sources by attenuating the tripping or precursor peak preceding the main peak due to the implosion. A plurality of immersed sources are used at different depths and, by successive tripping of the sources in time defined sequence, all their implosion peaks are phased while attenuating to a very large extent the resultant of the different tripping peaks, which increases the acoustic power emitted and makes the frequency spectrum more homogeneous.