ACOUSTIC TOMOGRAPHY SYSTEM FIELDS IN THE ATMOSPHERE, THE OCEANS AND CRUST OF DIFFERENT PHYSICAL NATURE IN THE MARINE ENVIRONMENT Russian patent published in 2017 - IPC G01S15/88 

FIELD: physics.

SUBSTANCE: invention can be used to build and operate a system of acoustic tomography data fields of the atmosphere, the oceans and the Earth's crust in the sea medium based on parametric waves varying reception ranged physical nature, providing measurement and the formation of their spectra 2D and/or 3D, as well as continuous monitoring their spatiotemporal dynamics. Acoustic tomography system fields in the atmosphere, the oceans and crust of different physical nature in the sea medium includes placed on opposite borders controlled medium radiating and receiving Acoustic transducers connected to the radiating and receiving channels respectively, formed between them work area nonlinear interactions and parametric transformation of pervious and measured waves. Radiating system tract includes the concatenated generator acoustic signals stabilised frequency radiated power amplifier block signals and pervious harmonize its release with an underwater cable and continue with the radiant acoustic transducer. The receiving path of the system includes a serially connected broadband amplifier, a narrow-band spectrum analyzer, and a functionally connected logger of nonlinearly transformed luminescent signals. The proposed system is fundamentally different in that the radiating unit is formed of three acoustic transducers which are located on the axis of the subsea sound channel (SSC), above and below the axis of the SSC respectively, and the receiving unit is formed of three linear discrete receive antennas including n elements (hydrophones) each, which are horizontally placed in the direction of the emitting acoustic transducers, respectively. The working zone of nonlinear interaction and parametric conversion of luminous acoustic and measured information waves in the marine environment is formed of three radiating transducers and three linear discrete antennas. The joint work of reception path system blocks (block of narrow-band spectral analysis, formation and submission of spectra of received signals in 2D and/or 3D, block selectively connect discrete reception antennas and cyclical switching elements (hydrophones), block frequency-temporal transformation (translation) spectra of received signals in high frequency multiplex area, block the formation of continuous signals) are mutually synchronized, that is determined by the mode of operation of the spectral analysis and realised their common line. Connection frequency linear discrete reception antennas and duration processes imaging atmospheric fields and (or) and (or) of the Earth's crust are determined by the objectives of the proposed system and the specifics of the area. The system additionally contains the same information-analytical tract, which includes the concatenated receiving RF unit, which is connected with the power spectral analysis of the reception path system, complex information and analysis unit and passing the radio unit, which is connected to the generator emitting tract system and with external information unit of the regional information center and (or) navigation system GLONASS.

EFFECT: task of the far rear-illuminated tracing hydroacoustic imaging characteristics of hydrophysical and geophysical fields generated by artificial and natural sources, processes and phenomena of the atmosphere, the oceans and the Earth's crust in the midst of the long canal with variable characteristics medium and borders, as well as of continuous surveillance of their spatiotemporal dynamics in water areas stretching tens-hundreds of miles away, in the frequency range of hundreds-tens units-the proportion of Hertz, including fluctuations in the VLF-range moving objects and inhomogeneities medium as a whole.

6 cl, 12 dwg