FIELD: oceanology.
SUBSTANCE: invention relates to oceanology and can be used for hydroacoustic research. Hydroacoustic system includes a glider, which comprises a cylindrical body with a nose compartment, bearing surfaces, a horizontal keel, sustainer engines, which are controlled by means of an electronic control unit with a satellite navigation system, recording and transmitting information, storage batteries, a buoyancy control system, a set of sensors, which includes a gyrocompass, an inclinometer and a depth sensor. Nasal compartment of housing is made in form of interconnected with ambient environment of sound-transparent fairings, inside of which on two-link suspension there is a combined receiver. On inner surface of airframe body there is a system for active damping of intrinsic vibration interference, made based on broadband film piezoelectric transducers. Glider is also equipped with a trim control system with the possibility of providing for the glider diving to the specified depth with a nose differential at negative buoyancy close to zero, and ascent with trim on the stern with positive buoyancy, close to zero, and a digital data processing system. When processing the sound source horizon, the depth sensor readings corresponding to the intensity vector rotor maximum are received, and as a sign of detecting a moving underwater sound source, the degree of exceeding the maximum of the signal-to-noise ratio at the output of the comparator, which is taken as a predetermined detection threshold, is determined above the level of that component in the field of background noise interference.
EFFECT: technical result is high accuracy of determining the horizon of the sound source due to airframe manoeuvre on depth with synchronous measurement of intensity vector rotor maximum, high accuracy of determining bearing on a source owing to use of a vortex component of an intensity vector and longer range of its detection by using a system for active quenching of intrinsic vibration interference and increase in the airframe measuring complex noise-immunity due to increase in the number of informative parameters.
1 cl, 2 dwg
