RU2011148402A - HYDROACOUSTIC COMPLEX FOR DETECTING A MOVING SOURCE SOURCE, MEASUREMENT OF THE AZIMUTAL ANGLE ON A SOURCE AND HORIZON OF A SOURCE SOUND IN A SHALLOW SEA - Google Patents

Abstract

A hydro-acoustic measuring complex containing N acoustic combined receivers, each of which consists of a hydrophone, a three-component vector receiver and amplifiers connected to them, a telemetry unit, the input of which is connected to the output of the acoustic combined receivers, including voltage dividers, an analog-to-digital conversion circuit, a single circuit electronic multiplexing, modulator and optical emitter, connected by an optical line of communication with an optical receiver, acquisition system, processing information and transmitting information, comprising a unit for collecting, processing and transmitting information, the input of which is connected to the output of the optical receiver, and a device for accessing digital data networks, characterized in that a vertically oriented equidistant bottom antenna is formed in the measuring complex by N acoustic combined receivers, in which the distance between the combined acoustic receivers is equal to the specified error in determining the vertical coordinate (horizon) of the sound source Δz, and the number about receivers N = H / Δz (where H is the depth of the sea), the N-channel unit for calculating the vertical components of the intensity vector, the input of which is connected to the output of the unit for collecting, processing and displaying information, is additionally introduced into the information collection, processing and display system, determination unit the maximum of the vertical component of the intensity vector, the input of which is connected to the output of the N-channel unit for calculating the vertical component of the intensity vector, and the output is connected to the first input of the access device to digital data transmission networks

Claims (1)

A hydro-acoustic measuring complex containing N acoustic combined receivers, each of which consists of a hydrophone, a three-component vector receiver and amplifiers connected to them, a telemetry unit, the input of which is connected to the output of the acoustic combined receivers, including voltage dividers, an analog-to-digital conversion circuit, a single circuit electronic multiplexing, modulator and optical emitter, connected by an optical line of communication with an optical receiver, acquisition system, processing information and transmitting information, comprising a unit for collecting, processing and transmitting information, the input of which is connected to the output of the optical receiver, and a device for accessing digital data networks, characterized in that a vertically oriented equidistant bottom antenna is formed in the measuring complex by N acoustic combined receivers, in which the distance between the combined acoustic receivers is equal to the specified error in determining the vertical coordinate (horizon) of the sound source Δz, and the number about receivers N = H / Δz (where H is the depth of the sea), the N-channel unit for calculating the vertical components of the intensity vector, the input of which is connected to the output of the unit for collecting, processing and displaying information, is additionally introduced into the information collection, processing and display system, determination unit the maximum of the vertical component of the intensity vector, the input of which is connected to the output of the N-channel unit for calculating the vertical component of the intensity vector, and the output is connected to the first input of the access device to digital data transmission networks , N-channel block for calculating the horizontal components of the intensity vector, the input of which is connected to the output of the block for collecting, processing and displaying information, N-channel block for calculating the azimuthal angle, the input of which is connected to the first output of the N-channel block for calculating the horizontal components of the intensity vector, block for calculating averaged azimuthal angle, the first input of which is connected to the output of the N-channel azimuthal angle calculation unit, the second input is connected to the second output of the N-channel horizontal azimuth calculation unit ntal components of the intensity vector, and the output is connected to the second input of the access device to digital data networks, the adder, the input of which is connected to the output of the N-channel unit for calculating the vertical component of the intensity vector, the complex envelope spectrum analyzer, the input of which is connected to the output of the adder, is a maximum calculator of the complex envelope spectrum, the input of which is connected to the output of the complex envelope spectrum analyzer, and the output is connected to the third input of the digital network access device data transmission, and the average azimuthal angle is determined by the formula $$〈\varphi 〉={\displaystyle \sum _{n=\mathrm{one}}^N{\varphi }_n\frac{I_{xn}^2+I_{yn}^2}{I^2}},I^2={\displaystyle \sum _{n=\mathrm{one}}^N\left(I_{xn}^2+I_{yn}^2\right)}$$

, where φ _n , I _xn , I _yn is the azimuthal angle and the horizontal components of the intensity vector related to the n-th acoustic combined receiver, the horizon of the sound source is the horizon of the acoustic combined receiver, which corresponds to the maximum of the vertical component of the intensity vector, determined in the maximum determination unit the vertical components of the intensity vector, and as a sign of detecting a moving sound source, the degree of exceeding the maximum of the complex ayuschey intensity of the vertical component of the vector, taken as a predetermined detection threshold, above the level of the spectral density of the background noise interference.