About the article
G.N. Ivanov, I.V. Krivenko, M.A. Smirnova, S.R. Ispiryan
The current topic of increasing the capabilities of sonar survey of sapropel deposits is considered. Mathematical modeling of the spectra of reflected and refracted pulses has been carried out, taking into account the characteristic dependence of the absorption coefficient on the frequency characteristic of various types of mineral soils, since the study of the spectra of reflected and refracted signals arising from sonar sounding of its layers provides information about the quantitative and qualitative composition of the layer. As a result of computational experiments, the dependences of the intensity of such signals on the frequency were obtained, which make it possible to distinguish sapropel from other types of soil. It is indicated that the research results can be used to determine the power and quality of the underlying layers without sampling by appropriately changing the parameters of the receiving channel of the equipment and decoding the spectra of the above-mentioned signals.
sapropel, mineral soils, seismoacoustic methods, sonar, mathematical modeling, dependence, absorption coefficient, frequency, spectrum, reflected signal, refracted signal.