FIELD: physics.
SUBSTANCE: invention relates to hydroacoustics, specifically to vector-scalar receivers and use thereof for conducting sonar studies, including in linear antennae, for detecting sources of underwater noise in seas and oceans. Receiver includes a two-component pressure gradient receiver and two identical sound pressure receivers symmetrically located outside the pressure gradient receiver housing at a distance corresponding to 1/8 of the length of the longitudinal sound wave of the upper frequency of the operating frequency band used. Outlets of pressure gradient receiver and sound pressure receivers are connected to controlled amplifiers. Acoustic pressure receivers through amplifiers are connected to the adder, at the output of which the response of the single acoustic pressure receiver is formed, and to the subtracting device, at the output of which the response of the two-hydrophone pressure gradient receiver is formed, sensitivity maximums of which are oriented in direction orthogonal to orientation of sensitivity maxima of both components of two-component pressure gradient receiver.
EFFECT: technical result is a vector-scalar receiver with a three-component pressure gradient receiver and a sound pressure receiver for a linear hydroacoustic antenna of small transverse size, which provides improved spatial selectivity (unidirectionality) and possibility of reducing the effect of vibration interference on reliability of detecting a useful signal.
5 cl, 2 dwg
