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Information × Registration Number 0216U000064, 0111U002369 , R & D reports Title Determination of correlation dependences between the physical properties of sediments and sonar fields at remote sensing popup.stage_title Head Gonchar Anatoliy Ivanovich, Registration Date 19-01-2016 Organization Scientific and technical center of panoramic acoustic systems National academy of sciences of Ukraine popup.description2 Establish a scientific and technical conditions of remote determination of properties of layered sediments hydroacoustic methods. Revealed correlations between physical properties and reflective sediment. We derive mathematical expressions, allowing to estimate the parameters in a stratified multilayer medium using spectral methods. First mathematical simulation of the spectral estimation method parameters stratified multilayered seabed. The calculation of the intensity of bottom reverberation and derived an expression to determine the backscattering coefficient. Plotted backscattering power as a function of slip angle for silt clay silt, sand and gravel at frequencies of 10, 30, 100 and 500 kHz. A method of classifying types of bottom soil of the reflected signals single beam. Described and carried out numerical calculation model of the time dependence of the acoustic intensity of the reflected signal from the bottom. We investigated the correlation properties of the reverb. The graphs of the correlation coefficient fluctuations reverb on the envelope and the carrier, as well as a theoretical graphs of the reverb spectrum carrier-envelope.5481 Product Description popup.authors Гончар Анатолій Іванович Шундель Олексій Іванович popup.nrat_date 2020-04-02 Close