METHOD OF FORMATION OF DIRECTIONAL RADIATION OF LOW-FREQUENCY UNDERWATER ACOUSTIC SIGNALS

摘要

FIELD: underwater acoustics. SUBSTANCE: two sound signals close in frequency are formed on frequencies ωand ωand amplified, then they are mixed in adder and fed into pumping transducer with which aid specified section of aqueous medium is illuminated. Radiation of pumping waves is performed on resonance frequency of biological scatterers of sound dominating in given time of day in this particular geographical region of world ocean. Due to radiation of pumping signal on frequency corresponding to resonance frequency of biological scatterers of sound efficiency of conversion of energy of pumping wave into energy of wave of resonance frequency increases with considerably enhances efficiency of use of parametric transducers of sound. EFFECT: enhanced functional efficiency of parametric transducers of sound.