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Random processes of hydrodynamic nature in bottom area estimation and statistical characteristics analysis

Keywords:

V.V. Petrovskiy – Ph.D. (Eng.), Associate Professor, Department of Radioelectronics and Information-Measuring Engineering, Kazan National Research Technical University named after A.N. Tupolev (KNRTU-KAI)
E-mail: vvpetrovskiy@kai.ru
M.V. Petrovskaya – Senior Lecturer, Department of Radioelectronics and Information-Measuring Engineering, Kazan National Research Technical University named after A.N. Tupolev (KNRTU-KAI)
E-mail: mvpetrovskaya@kai.ru
D.V. Shakhturin – Ph.D. (Eng.), Associate Professor, Department of Radioelectronics and Information-Measuring Engineering, Kazan National Research Technical University named after A.N. Tupolev (KNRTU-KAI)
E-mail: dvshakhturin@kai.ru


Experimental data obtained for a long period of time on the Black Sea and the Baltic Sea served as the basis for the study of bottom fields of hydrodynamic nature. The primary information was collected during synchronous multicomponent reception of the hydrody-namic pressure field constituents. In this case, scalar and vector transducers were located at one point of the bottom area.
Studies have shown that the hydrodynamic pressure in bottom area random process fluctuations on separate sections can be considered as a stationary Gaussian process. The obtained estimates of the spectral density and the correlation function, as well as the study of their dynamics, allow us to conclude that the hydrodynamic pressure bottom process fluctuations are strongly correlated with surface wind wave process. The spectrum contains two grouping regions of constituents. The high-frequency area is in good agreement with the data of wind wave studies.
The final goal of the study is the development of mathematical models of the scalar and vector constituents of hydrodynamic field of pressures and their software and hardware implementation to build simulation models of oceanographic problem-oriented computer systems functioning.

References:
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  2. Petrovskij V.V., Vjaselev M.R., Nasyrov I.K., Shaljapin Ju.K. Issledovanie nestacionarnyh sverhnizkochastotnyh fluktuacij pridonnogo davlenija v pribrezhnoj zone i ih verojatnostnye modeli. // Materialy III Vsesojuznoj nauch.-tehnich. konf. «Priem i analiz sverhnizkochastotnyh kolebanij estestvennogo proishozhdenija». L'vov. 1990. S. 43.
  3. Davidan I.N., Lopatuhin L.I., Rozhkov V.A. Vetrovoe volnenie v Mirovom okeane. L.: Gidrometeoizdat. 1985. 256 s.

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