LARGE-SCALE RADIO-HYDRO ACOUSTIC SYSTEM FORMATION AND APPLICATION METHOD FOR MONITORING, RECOGNIZING AND CLASSIFYING THE FIELDS GENERATED BY THE SOURCES IN MARINE ENVIRONMENT Russian patent published in 2018 - IPC G01H3/00 

FIELD: physics.

SUBSTANCE: invention relates to hydro acoustics, hydrophysics and geophysics. Large-scale radio-hydro acoustic system formation and application method for monitoring, recognizing and classifying the fields generated by sources in the marine environment includes the basic luminous parametric system formation, namely the emitters and receiving transducers placement in the marine environment, sounding of the environment by the stabilized low-frequency acoustic signals frequency in the range of tens to hundreds of hertz, zone of nonlinear interaction formation therein and luminous and measurable information waves of different physical nature parametric transformation, broadband signals parametric reception by underwater transducers and their transmission to the receiving path via cables, where the signals are amplified in the parametric transformation band and processed by the correlation analysis three lines and the spectral analysis one line, determining the measured waves signs, taking into account the time-frequency and parametric signals conversion. Parametric antenna is formed in the marine environment as the spatially-developed and multipath, for which purpose three non-directional emitters are used, which are located in the water area surveyed area center and set in depth on the submarine sound channel (SSC) axis, above and below the SSC axis, and the same by structure receiving units are arranged in depth similar to the emitters, wherein forming each receiving unit of three acoustic transducers (hydrophones), which are placed along the triangles vertices, which bases are placed on one vertical line, and opposite to the bases vertices are turned to the corresponding emitters. Main luminal parametric system is formed as a system of spatially-developed, multipath parametric antennas located along the surveyed water area circumference or perimeter after 45° and oriented from the center to the periphery, and the receiving units are formed as discrete antennas, in which the distances between the transducers (hydrophones) are set in accordance with the acoustic field vertical structure correlation characteristics. Principal difference of the claimed method is in the fact, that the main luminous parametric system is scaled within the water area extended space, for which the main luminous parametric system is located in the water area controlled section center, and introduced into the large-scale radio-acoustic system additional subsystems are placed on the water area set sections. Main system and additional subsystems are united by the common radiating path, but are equipped with different receiving paths with their underwater emitters and receiving units, for which the radiating path outputs are via cables connected to the main and additional subsystems underwater emitters inputs through the radiating transducers switching unit, and the underwater receiving transducers outputs are connected to the inputs of the main and additional subsystems receiving paths, respectively, through the cables. Received by the underwater transducers signals are transmitted to the receiving paths by means of cables, where they are processed by neural network analysis lines introduced into the main and additional subsystems receiving paths, and performing belonging to the classification object spectral region automatic recognition. Then, through the communication channels through the switching unit receiving paths, the analytical processing results are transmitted to the introduced into the large-scale system Single Information and Analytical Center, where the objects spectrograms mathematically processed images final analysis, recognition and classification are performed, and also developing commands for the large-scale radio-acoustic system operation control in accordance with changes in the water area monitoring conditions and tasks. Additional subsystems luminous parametric antennas are formed as a system of multipath parametric antennas located along the monitored water area circumference or perimeter after 45° and oriented from the center to the periphery, at that, the additional subsystems are removed from the neighboring subsystems at a distances providing the water area monitoring. Additional subsystems receiving units are formed as discrete antennas, in which the distances between the transducers (hydrophones) are set in accordance with the luminous field vertical structure correlation properties. Information fields long-range parametric reception and space-time characteristics constant monitoring are performed in the hundreds-tens-a-unit-fraction of hertz frequency range, including ULF oscillations of moving objects and medium heterogeneity as a whole. Information fields in the marine environment formation sources recognition and classification operations are performed on the basis of the artificial neural networks fuzzy logic both in the automatic mode and with the participation of operator.

EFFECT: technical result of the invention is in the large-scale radio-acoustic system formation and application method development, providing monitoring, recognition and classification of fields generated by the sources in marine environment, within the water area extended space.

3 cl, 17 dwg