METHOD FOR FORMING AND APPLICATION OF GLOBAL RADIOHYDROACOUSTIC SYSTEM OF MONITORING ATMOSPHERIC, OCEANIC AND CRUSTAL FIELDS IN MARINE ENVIRONMENT AND RECOGNITION OF SOURCES THEREOF Russian patent published in 2019 - IPC G01H3/00 

FIELD: physics.

SUBSTANCE: invention relates to hydrophysics, geophysics and radiophysics. It is based on the integration of the fundamental development of the GLONASS navigation system, the Gonets communication system, as well as scientific and technical developments of the radio-hydroacoustic system for monitoring the atmospheric, oceanic and crustal fields in the marine environment as the Unified Information Space of the Earth. Method for the formation and application of a global radio-hydroacoustic system for monitoring the atmospheric, oceanic and crustal fields in the marine environment and the recognition of their sources includes placing radiating and receiving transducers in the medium, sounding medium by low-frequency acoustic signals of a stabilized frequency and the forming in it working zones of nonlinear interaction and parametric transformation of luminous and measurable information waves of different physical nature,receiving nonlinearly transformed luminescent signals, amplifying them in the parametric transformation band, transferring to the high-frequency region, narrow-band spectral analysis, separating from the spectra of the upper and/or lower side bands and recovering on their basis, taking into account the parametric and frequency-time transformation, the initial characteristics of the information waves. Luminous parametric antenna is formed as a spatial multipath, for which it uses non-directional radiating transducers, that are located in the center of the controlled water area and are installed in depth both on the axis of the underwater sound channel, and above and below it. Identical receiving blocks are arranged in depth similar to the radiating converters and are located relative to the radiating center along a circle or perimeter of the controlled water area after 45°. Each of the receiving blocks is formed from three non-directional converters (hydrophones), that are located in the vertical plane of the controlled medium along triangles, preferably isosceles, their bases lie on the same vertical line, and their vertices face the radiating transducers. Luminous signals of each radiating transducer are received by each single receiving transducer (hydrophone) of each of the three receiver units, as a result of which the luminous parametric antenna is a complex of multipath parametric antennas located in the vertical plane, oriented radially from the center to the periphery and equally remote from the antennas adjacent to them. Placed in the vertical plane, the receiving blocks are a discrete linear antenna in which the distances between the transducers of the receiving units in the vertical plane are set in accordance with the correlation properties of the luminous acoustic field. Principal difference between the claimed method consists in the fact that the main (scalable) luminal parametric system for monitoring the atmospheric information fields, ocean and the crust in the marine environment and the recognition of their sources form within the water areas of the seas of the Far Eastern region or within the aggregate space of other maritime economic zones of the Russian Federation. In the structure of the global radio-acoustic system introduce additional subsystems that form and establish on geographically remote water areas relative to the main (scalable) system. Main system and additional subsystems are provided with various radiating and receiving paths with their underwater radiators and receiving blocks. Signals from underwater converters by means of cables are transmitted to reception paths, where they are processed by neural network analysis lines, introduced into the composition of all receiving paths, and perform automatic recognition of the belonging of the spectral region to the object of classification. Results of the analytical processing through the communication channels through the switching block of the receiving paths are transferred to the Joint Information Analysis Center (JIAC) of the global radio-acoustic system where they perform the final analysis, recognition and classification of mathematically processed images of spectrograms of objects, and also produce commands for managing the operation of the main (scalable) system and additional subsystems in accordance with changes in tasks and conditions for conducting monitoring of the water areas. Moreover, the JIAC is connected to external (not system) blocks providing data exchange and communication between the JIAC and/or GLONASS navigation systems and Gonets connection. In addition, the luminescent parametric antennas of the additional subsystems form as complexes of vertical multipath parametric antennas, located on a circle or perimeter of the monitored water areas through 45° and oriented from the center to the periphery, while the additional subsystems are removed from the neighboring subsystems at a distance that provides monitoring of the water areas. In addition, the receiving blocks of additional luminal parametric systems are formed as discrete antennas in which the distances between the transducers (hydrophones) are set in accordance with the correlation properties of the luminal acoustic field. Range of frequencies of long-range parametric reception of information waves is hundreds to tens of units-fractions of hertz, including waves of SLF oscillations of moving objects, as a whole. Recognition of the sources of formation in the marine environment of information fields is performed on the basis of fuzzy logic of artificial neural networks both in the automatic mode and with the participation of the operator.

EFFECT: technical result of the invention consists in developing a method for the formation and application of a global radio-acoustic system that provides observation of the spatiotemporal dynamics of the characteristics of fields generated by atmospheric sources, ocean and the earth's crust under conditions of an extended hydroacoustic channel with variable characteristics of the medium and boundaries.

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