Effect of Emergence Angle on Acoustic Transmission in a Shallow Sea

• Autorzy: Lu Yanyang , Yang Kunde , Liu Hong , Huang Chunlong

Identyfikatory

DOI

10.24425/aoa.2019.129736

• Języki publikacji: EN

Abstrakty

EN

In this study, the effect of the emergence angle of a source array on acoustic transmission in a typical shallow sea is simulated and analyzed. The formula we derived for the received signal based on the Normal Mode indicates that the signal is determined by the beamform on the modes of all sources and the samplings of all modes at the receiving depth. Two characteristics of the optimal emergence angle (OEA) are obtained and explained utilizing the aforementioned derived formula. The observed distributions of transmission loss (TL) for different sources and receivers are consistent with the obtained characteristics. The results of this study are valuable for the development and design of active sonar detection.

Słowa kluczowe

EN

underwater acoustic; emergence angle; transmission loss; active sonar detection

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2020
• Tom: Vol. 45, No. 1
• Strony: 3--9
• Opis fizyczny: Bibliogr. 29 poz., rys., wykr.

Twórcy

autor

Lu Yanyang

• School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an, 710072, China
• Key Laboratory of Ocean Acoustics and Sensing (Northwestern Polytechnical University), Ministry of Industry and Information Technology, Xi’an, 710072, China

autor

Yang Kunde

• School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an, 710072, China
• Key Laboratory of Ocean Acoustics and Sensing (Northwestern Polytechnical University), Ministry of Industry and Information Technology, Xi’an, 710072, China

autor

Liu Hong

• School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an, 710072, China
• Key Laboratory of Ocean Acoustics and Sensing (Northwestern Polytechnical University), Ministry of Industry and Information Technology, Xi’an, 710072, China

autor

Huang Chunlong

• School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an, 710072, China
• Key Laboratory of Ocean Acoustics and Sensing (Northwestern Polytechnical University), Ministry of Industry and Information Technology, Xi’an, 710072, China

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).