scholarly journals Propagation loss analysis using ship radiated noise in shallow water

2020 ◽  
Author(s):  
Yezhen Pang ◽  
Jin Liu ◽  
Mengsa Yu ◽  
Wenwei Wu
Keyword(s):  
Shallow Water ◽  
Propagation Loss ◽  
Radiated Noise ◽  
Loss Analysis

Comparison of Sound Propagation Characteristic between Deep and Shallow Water

2014 ◽  
Vol 577 ◽  
pp. 1198-1201
Author(s):  
Zhang Liang ◽  
Chun Xia Meng ◽  
Hai Tao Xiao
Keyword(s):  
Shallow Water ◽  
Deep Water ◽  
Sound Speed ◽  
Sound Propagation ◽  
Spherical Wave ◽  
Sound Field ◽  
Propagation Loss ◽  
Speed Profile ◽  
Sound Speed Profile ◽  
Propagation Law

The physical characteristics are compared between shallow and deep water, in physics and acoustics, respectively. There is a specific sound speed profile in deep water, which is different from which in shallow water, resulting in different sound propagation law between them. In this paper, the sound field distributions are simulated under respective typical sound speed profile. The color figures of sound intensity are obtained, in which the horizontal ordinate is distance, and the vertical ordinate is depth. Then we can get some important characteristics of sound propagation. The results show that the seabed boundary is an important influence on sound propagation in shallow water, and sound propagation loss in deep water convergent zone is visibly less than which in spherical wave spreading. We can realize the remote probing using the acoustic phenomenon.

Sensitivity of predicted shallow‐water propagation loss to empirical and extrapolated bottom loss values.

1992 ◽  
Vol 91 (4) ◽  
pp. 2405-2405
Author(s):  
Joseph M. Monti ◽  
Jefferey H. Sammis ◽  
Peter D. Herstein ◽  
David G. Browning
Keyword(s):  
Shallow Water ◽  
Propagation Loss

Experimental Characterization of Frequency Dependence of Short-Range Propagation Loss in Shallow Water

2008 ◽  
Vol 47 (5) ◽  
pp. 4372-4374 ◽  
Author(s):  
Seongwook Lee ◽  
Kyu-Chil Park ◽  
Jong Rak Yoon ◽  
En Kyu Nam ◽  
Jae-Yong Choi ◽  
...  
Keyword(s):  
Frequency Dependence ◽  
Shallow Water ◽  
Short Range ◽  
Propagation Loss ◽  
Experimental Characterization
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