Hydroacoustic complex for measurement of the azimuth angle of the sound source in shallow water

摘要

FIELD: physics.;SUBSTANCE: hydroacoustic measuring system (HMS) has a bottom orthogonal base which is formed by three acoustic composite receivers, each consisting of a hydrophone, a three-component vector receiver and amplifiers connected thereto. The HMS also includes a telemetric unit, having voltage dividers, an analogue-to-digital converter system, a single electronic multiplexing circuit, a modulator and an optical emitter, connected by an optical link to an optical receiver, an information collection, processing and transmission system having an information collection, processing and transmission unit, a three-channel unit for calculating the vertical component of the intensity vector, a first unit for calculating a signal cross correlation function K₁₂(τ), a second unit for calculating a signal cross correlation function K₁₃(τ), a unit for calculating the maximum of the cross correlation functions, a unit for calculating the azimuthal angle to the sound source relative the X axis.;EFFECT: longer range and reduced error in measurement of azimuthal angle and bearing by increasing the aperture of the measuring system.;2 dwg