METHOD highly directional emission and reception of broadband hydroacoustic signal

摘要

method u0432u044bu0441u043eu043au043eu043du0430u043fu0440u0430u0432u043bu0435u043du043du043eu0433u043e u0438u0437u043bu0443u0447u0435u043du0438u00a0 and receive broadband hydro acoustic signals u0437u0430u043au043bu044eu0447u0430u044eu0449u0438u0439u0441u00a0 shaping, growing and high output in the aquatic environment u043au043eu0447u0430u0441u0442u043eu0442u043du044bu0445 signals (at frequencies 1 and 2 and the generation of the aquatic waves u0440u0430u0437u043du043eu0441u0442u043du043eu0439 frequency = 1 - 2, it u043bu043eu0446u0438u0440u0443u044eu0442 the researched object and receive u043eu0442u0440u0430u0436u0435u043du043d gear wave u0440u0430u0437u043du043eu0441u0442u043du043eu0439 frequency / u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 orderthe high frequency signals at frequencies of 1 and 2%, close to the resonant frequency of air, u043du0430u0445u043eu0434u00a0u0449u0438u0445u0441u00a0 in u043fu0440u0438u043fu043eu0432u0435u0440u0445u043du043eu0441u0442u043du043eu043c layer water in the u0440u0430u0441u043fu043eu043bu043eu0436 u0435u043du0438u00a0 u0438u0437u043bu0443u0447u0430u0442u0435u043bu00a0 high frequency signals (1 and 2 u0440u0430u0437u043du043eu0441u0442u043du043eu0439 u00a0u0432u043bu00a0u0435u0442u0441u00a0 wave frequency broadband and is close to the resonance frequencies of the object under examination, to u043fu043eu043bu043du0438u0442u0435u043bu044cu043du043e u0444u043eu0440u043cu0438u0440u0443u0435u0442u0441u00a0,u0443u0441u0438u043bu0438u0432u0430u0435u0442u0441u00a0 and continuously u0438u0437u043bu0443u0447u0430u0435u0442u0441u00a0 in aquatic environment of high frequency signal at a frequency of 3%, close to the second resonant frequency of the air u0433u0430u0440u043cu043eu043du0438u043au0435 but, u043du0430u0445u043eu0434u00a0u0449u0438u0445u0441u00a0 in u043fu0440u0438u043fu043eu0432u0435u0440u0445u043du043eu0441u0442u043du043eu043c layer of water in the u0440u0430u0441u043fu043eu043bu043eu0436u0435u043du0438u00a0 u0438u0437u043bu0443u0447u0430u0442u0435u043bu00a0 high-frequency signal (3; further u0432u044bu0441u043eu043au043eu043du0430u043fu0440u0430u0432u043bu0435u043du043du043e u043fu0440u0438u043du0438u043cu0430u044eu0442u0441u00a0 and u0443u0441u0438u043bu0438u0432u0430u044eu0442u0441u00a0 high-frequency signals at the frequencies of u043au043eu043cu0431u0438u043du0430u0446u0438u043eu043du043du044bu0445 3u00b1 /,then the u0434u0435u043cu043eu0434u0443u043bu0438u0440u0443u044eu0442u0441u00a0 and u0444u0438u043bu044cu0442u0440u0443u044eu0442u0441u00a0 to u0432u044bu0434u0435u043bu0435u043du0438u00a0 of them reflected from the object u0440u0430u0437u043du043eu0441u0442u043du043eu0439 broadband signal frequency.