Separation of acoustic modes in the Florida Straits using noise interferometry

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• 作者：S. N. Sergeev ; A. S. Shurup ; O. A. Godin ; A. I. Vedenev…
• 关键词：mode selection ; passive tomography ; shallow water ; cross correlation function ; noise field correlation ; ocean monitoring
• 刊名：Acoustical Physics
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：63
• 期：1
• 页码：76-85
• 全文大小：
• 刊物类别：Physics and Astronomy
• 刊物主题：Acoustics;
• 出版者：Pleiades Publishing
• ISSN：1562-6865
• 卷排序：63

文摘

We consider separation of acoustic modes in an experiment carried out in the Florida Straits. The features of the approach are separation of modes using data from single hydrophones, not vertical mode arrays, and a passive scheme of noise interferometry in which the source consists of ocean noise. Processing made it possible to reliably separate the first four modes of the acoustic field. The results allow a conclusion on the possible use of this method for shallow-water monitoring under complex hydrological conditions.