Effect of Guide’s Acoustic Parameters on Vertical Directivity of the Marine Ambient Noise

Chun Xia Meng; Hao Mu; Gui Juan Li

doi:10.4028/www.scientific.net/AMM.577.1207

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 577Effect of Guide’s Acoustic Parameters on Vertical...

Effect of Guide’s Acoustic Parameters on Vertical Directivity of the Marine Ambient Noise

Abstract:

The vertical directivity characteristic of ambient noise is one inherent characteristic of the ocean in shallow water. And it includes the information of guide’s acoustic characteristic information. The marine guide is composed of sea water; seabed and surface boundary, there into, the acoustic parameters of seabed are hardly obtained exactly. In this paper, the model of vertical directivity for ambient noise is established. Based on the ray theory of sound propagation, the influence of guide’s acoustic parameters which include sound speed, density and attenuation coefficient on vertical directivity of marine ambient noise is simulated. The results are propitious to analysis and command the characteristics of ambient noise, and valuable to accelerate the exertion of acoustic equipment performance.

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Periodical:

Applied Mechanics and Materials (Volume 577)

Pages:

1207-1210

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.577.1207

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Online since:

July 2014

Authors:

Chun Xia Meng*, Hao Mu, Gui Juan Li

Keywords:

Acoustic Parameters, Ambient Noise, Effect Rule, Vertical Directivity

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