METHOD FOR PARAMETRIC RECEPTION OF WAVES OF DIFFERENT PHYSICAL NATURE OF SOURCES, PROCESSES AND PHENOMENA OF ATMOSPHERE, OCEAN AND EARTH'S CRUST IN MARINE ENVIRONMENT Russian patent published in 2016 - IPC G01H3/00 G10K11/00 

FIELD: measuring equipment.

SUBSTANCE: method for parametric reception of waves of different physical nature of atmospheric sources, ocean and earth's crust in marine environment includes spatially separated on controlled waters in tens to hundreds of kilometers of radiating and receiving acoustic transducers formed between working area of nonlinear interaction and parametric conversion acoustic luminal and measured information waves, coupled with converters, respectively, radiating path of formation, amplification and illumination signal radiation environment, as well as receive path gain, spectral analysis of nonlinear transformed luminal signal isolation in spectra of top and (or) of lower sideband, definition and recording information signals, characterised in that working area of nonlinear interaction and parametric conversion luminal and measured information waves formed as a multi-beam space-developed luminal parametric antenna commensurate with extent of controlled waters, which emitting transducer is placed in center of water area and include three omnidirectional unit and placed on an axis above and below axis of underwater sound channel (USC), a receiving transducer is formed similarly to emitting transducer of three identical blocks which have a circular or perimeter on opposite edge of waters and placed relatively PCO analogously emitting blocks, when each receiving unit is formed of three single hydrophones are arranged in a vertical plane along isosceles triangles, and their vertices directed towards emitting transducer, due to this, together with radiating transducers form luminal multipath parametric antenna with a radiating path measuring systems comprise successively connected units: a sound generator stabilised frequency power amplifier, a three-channel unit output matching amplifier with underwater cables continue to emit acoustic transducers and receiving channel measurement system is formed as a multichannel and multifunction that includes a single channel analysis to extract information signals, comprising serially connected blocks: a bandpass amplifier, inverter time scale signals in high frequency region, a narrow-band spectrum analyser and functionally associated recorder (recorder), as well as three channels of measurement functions of correlation between average and extreme hydrophones receiver units, further functions of cross-correlation for measurement of angles arrival of multipath signals “top and bottom” in directions formed vertically luminal parametric antennas for each receiver unit, wherein each of three channels of correlation analysis includes serially connected: bandpass amplifiers, two parallel measuring unit of correlation functions of signals between central and outermost hydrophones receiver units, further blocks measuring cross correlation functions whose outputs are connected to a common recorder unit (burner), and with a calculation unit beam path as luminal parametric antennas, and points of intersection of waters (PC), and single hydrophone each receiver unit via cable channels through switching unit is connected to multi-channel reception path measuring system. Furthermore, nonlinear converted scanning signals from each radiating transducer are received by single receivers of all receiving units, which provide reception of signals in separate pervious arrival times of rays as parametric antennae and separation at angles of arrival of units of correlation and mutually correlation analysis. Furthermore, scanning parametric system is formed as a system of vertical multi-beam parametric antennae and arranged in circle or perimeter of medium through 45 degrees, oriented radially from radiating centre to periphery, which enables to form common spatially developed parametric monitoring system. Furthermore, located in vertical plane receiving units together with radiating units of a multi-beam parametric antenna, wherein vertical distance between transducers receiving units and their hydrophones in vertical plane are set in compliance with correlation properties of transmissive acoustic field. Furthermore, receiving and emitting channels system include radio communication units and matching of radiating and receiving channels of measurement system and its entering via communication channels, preferably satellite, in information-analytical centre multi-link analysis and control system. Besides, the scanning radio-hydroacoustic system for monitoring extended (scaled) across space owing to combining similar subsystems monitoring deployed on other water bodies and are in radio communication channels (preferably space) in a single information-analytical centre, containing information analysis system unit, a radiating and receiving radio units, and two-way link radiating and receiving paths of lighting system and monitoring.

EFFECT: technical result is development of large-scale radio-hydroacoustic rear-illuminated tracing monitoring system as a spatially developed multi-beam parametric antenna, comparable with length of controlled medium, which provides far and ultra-long parametric reception in marine environment waves of different physical nature of atmosphere, ocean and earth's crust, generated by natural and artificial sources, phenomena and processes in frequency range covering tens-units of kilohertz, hundreds-tens-units-fraction of hertz, including extremely low frequency, as well as determination of places (distance and depth) of marine sources, quick operation mode adjustment system to changes in environment of propagation of pervious waves, as well as to manifold manifestations of information waves.

5 cl, 17 dwg