Sound‐propagation modeling with the enhanced ray theory in four dimensions

1999 ◽  
Vol 105 (2) ◽  
pp. 1363-1363
Author(s):  
Nikolay E. Maltsev
Keyword(s):  
Sound Propagation ◽  
Ray Theory ◽  
Four Dimensions ◽  
Propagation Modeling

Sound propagation modeling of right whale calls in Cape Cod Bay.

2010 ◽  
Vol 128 (4) ◽  
pp. 2467-2467
Author(s):  
Ying‐Tsong Lin ◽  
Arthur E. Newhall ◽  
Susan E. Parks
Keyword(s):  
Sound Propagation ◽  
Cape Cod ◽  
Propagation Modeling ◽  
Right Whale ◽  
Cape Cod Bay

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

2014 ◽  
Vol 577 ◽  
pp. 1207-1210
Author(s):  
Chun Xia Meng ◽  
Hao Mu ◽  
Gui Juan Li
Keyword(s):  
Shallow Water ◽  
Sound Speed ◽  
Ambient Noise ◽  
Sound Propagation ◽  
Sea Water ◽  
Surface Boundary ◽  
Ray Theory ◽  
Directivity Characteristic ◽  
Acoustic Parameters ◽  
Equipment Performance

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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