NDLI: A model for acoustics fluctuations due to internal waves

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2010 2nd International Conference on Signal Processing Systems

Volume 3 - 2010

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Volume 1 - 2010

2009 International Conference on Signal Processing Systems

A model for acoustics fluctuations due to internal waves

Content Provider	IEEE Xplore Digital Library
Author	Liu Cuihua Chen Biao Tao Ronghua Xu Suqin Gao Guoxing
Copyright Year	2010
Description	Author affiliation: Navy Submarine Academy, Qingdao, 266071, P.R China (Liu Cuihua; Chen Biao; Tao Ronghua; Xu Suqin; Gao Guoxing)
Abstract	Since internal waves are the main source for acoustics fluctuations, interaction between acoustic signal and nonlinear internal waves in shallow water regions must cause significant attention. In order to understand and describe the effects of internal waves on acoustic signals, here it built a set of numerical models to simulate the progress of internal wave influencing acoustic signals. They mainly were the internal wave packet model and the sound propagation model. The internal wave packet model was used to reconstruct the environment of internal wave fields, which is very important for rebuilding internal fields rapidly. The advanced PE model for sound propagation adopted a split-step difference algorithm resulting to reduce calculation quantity and enhance calculation speed. Using the two models it simulated the transmission loss of different receiver depths and summed the influence of internal wave on underwater sound, which provided the whole progress and a valid method to analyze the internal waves' effect on acoustics. These results suggested that it should be necessary to take internal waves into account for the ocean target detection.
File Size	244551
File Format	PDF
ISBN	9781424468928
e-ISBN	9781424468935
DOI	10.1109/ICSPS.2010.5555782
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-05
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	transmission loss Fluctuations Oceans internal waves Receivers acoustics Acoustics model Numerical models Mathematical model Equations
Content Type	Text
Resource Type	Article

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