Analysis of Bottom Reverberation Intensity Under Beam-Controlled Emission Conditions in Deep Water

• Autorzy: Zheng Guangying , Guo Xiaowei , Zhu Fangwei , Wang Fangyong , Bai Linlang

Identyfikatory

DOI

10.24425/aoa.2024.148780

• Języki publikacji: EN

Abstrakty

EN

A comprehensive understanding of the characteristics and the formation mechanism of reverberation is the key to improving the performance of the active target detection. In response to the challenge of analyzing the intensity of bottom reverberation in typical deep-sea environments, this study proposes a prediction method for the bottom reverberation intensity under beam-controlled emission conditions. It explains the variation law of bottom reverberation intensity under beam-controlled emission conditions in typical deep-sea environments of the South China Sea through theoretical and simulation analyses. Reverberation intensity of the deep-sea bottom under beam-controlled emission conditions exhibits significant fluctuations during the duration of reverberations in the direct sound zone of the seabed. This phenomenon is closely related to the directionality of the source emission, leading to intermittent reverberation masking and detectable areas in the active sonar detection. In addition, the duration of the high-reverberation zone near the cutoff distance of the direct sound from the seabed is longer under the beam-controlled emission conditions of the emission array located within the surface waveguide layer of the deep sea during winter.

Słowa kluczowe

EN

bottom reverberation; deep water; beam controlled emission; ray theory

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2024
• Tom: Vol. 49, nr 2
• Strony: 221--231
• Opis fizyczny: Bibliogr. 19 poz., rys., wykr.

Twórcy

autor

Zheng Guangying

• Science and Technology on Sonar Laboratory Hangzhou, China
• Hangzhou Applied Acoustics Research Institute Hangzhou, China
• Hanjiang National Laboratory Wuhan, China

autor

Guo Xiaowei

• Science and Technology on Sonar Laboratory Hangzhou, China
• Hangzhou Applied Acoustics Research Institute Hangzhou, China
• Hanjiang National Laboratory Wuhan, China

autor

Zhu Fangwei

• Science and Technology on Sonar Laboratory Hangzhou, China
• Hangzhou Applied Acoustics Research Institute Hangzhou, China
• Hanjiang National Laboratory Wuhan, China

autor

Wang Fangyong

• Science and Technology on Sonar Laboratory Hangzhou, China
• Hangzhou Applied Acoustics Research Institute Hangzhou, China
• Hanjiang National Laboratory Wuhan, China

autor

Bai Linlang

• Science and Technology on Sonar Laboratory Hangzhou, China
• Hangzhou Applied Acoustics Research Institute Hangzhou, China
• Hanjiang National Laboratory Wuhan, China

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