Abstract
The double-peak characteristic of underwater radiated noise in the near field on top of the target submarine was analyzed in depth on the basis of submarine test data on the sea. The contribution of three major noise sources to the radiated noise of a submarine were compared and analyzed, and emphasis was put on the original source, production mechanism, and their correlative characteristics. On the basis of analysis on underwater tracking and pass through characteristics of the target submarine, the double-peak phenomenon was reasonably interpreted. Furthermore, the correctness of the theoretical interpretation was verified adequately in real submarine tests. The double-peak phenomenon indicates that the space distributing character on submarine radiated noise are both asymmetrical with time and space, whereas that is provided with directivity. Studying the double-peak phenomenon in depth has important reference value and meaning in engineering practice for understanding the underwater radiated noise field of submarines.
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Foundation item: Supported by the Navy Equipment Advanced Research Project under Grant No. 40113070203.
Ning Liu was born in 1979. He received the MS degree in underwater acoustic engineering in 2003 from Harbin Engineering University. His current research interests include vector signal processing and noise control.
Sande Wang was born in 1974. He received the PhD degree in underwater acoustic engineering in 2005 from Harbin Engineering University. His main research interests are in vibration of structure and noise control.
Tao Guo was born in 1982. He is an engineer at Dalian Scientific Test and Control Technology Institute. His current research interests include beam forming, noise measuring, etc.
Xiyou Li was born in 1975. He received the MS degree in optical communication technology in 2005 from Harbin Engineering University. His current research interests include digital communication and systerm control technology and noise signal processing.
Ziyang Yu was born in 1978. He received MS degree in underwater acoustic engineering in 2007 from Harbin Engineering University. His current research interests are research and exploitation of the radiation noise of underwater machine, etc.
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Liu, N., Wang, S., Guo, T. et al. Experimental research on the double-peak characteristic of underwater radiated noise in the near field on top of a submarine. J. Marine. Sci. Appl. 10, 233–239 (2011). https://doi.org/10.1007/s11804-011-1049-2
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DOI: https://doi.org/10.1007/s11804-011-1049-2