Passive acoustic source depth discrimination with two hydrophones in shallow water

doi:10.1109/OCEANSAP.2016.7485594

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋环境与数值模拟研究室

	Passive acoustic source depth discrimination with two hydrophones in shallow water
	Du, Jinyan 1; Zheng, Yi 1; Wang, Zhongqiu 1; Cui, Hao 1; Liu, Zongwei 2
	2016-06-03
会议日期	4 10, 2016 - 4 13, 2016
会议地点	Shanghai, China
DOI	10.1109/OCEANSAP.2016.7485594
英文摘要	It is important for sonar systems to distinguish the submerged source from the surface one. Current approaches based on matched field processing, mode scintillation and mode filtering require either precise knowledge of the ocean environment parameters or densely populated hydrophone arrays, and become problematic in practical use. Current waveguide invariant based method, deriving the distribution of the waveguide invariant from the LOFAR diagram using standard Radon transform or standard Hough transform, will have a large error variance when the interference striation is break off or intersect with each other, resulting in a bad performance. This paper proposed a new method of source depth discrimination which uses the local angle of the interference striations directly from the LOFAR diagram with the help of two dimensional discrete Fourier transform. The method analyzes the existing LOFAR diagram and needs no prior information of the ocean environment. It is more robust and computation efficient because of the accumulate effect and the use of FFT. © 2016 IEEE.
会议录	OCEANS 2016 - Shanghai
会议录出版者	Institute of Electrical and Electronics Engineers Inc.
语种	英语
内容类型	会议论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/7169]
专题	业务部门_海洋环境与数值模拟研究室
作者单位	1.Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology, Shandong Academy of Sciences, Institute of Oceanographic Instrumentation, Qingdao, China; 2.First Institute of Oceanography, State Oceanic Administration, Qingdao, China
推荐引用方式 GB/T 7714	Du, Jinyan,Zheng, Yi,Wang, Zhongqiu,et al. Passive acoustic source depth discrimination with two hydrophones in shallow water[C]. 见:. Shanghai, China. 4 10, 2016 - 4 13, 2016.