Estimation of sound speed and attenuation in muddy sediments using spatial coherence measurements of sound propagation

2018 ◽  
Vol 143 (3) ◽  
pp. 1798-1798
Author(s):  
Lin Wan ◽  
Mohsen Badiey
Keyword(s):  
Sound Speed ◽  
Sound Propagation ◽  
Spatial Coherence ◽  
Muddy Sediments

Inferring low-frequency compressional sound speed and attenuation in muddy sediments from long-range broadband sound propagation

2018 ◽  
Vol 144 (3) ◽  
pp. 1947-1947
Author(s):  
Lin Wan ◽  
Mohsen Badiey ◽  
David P. Knobles ◽  
Preston S. Wilson
Keyword(s):  
Long Range ◽  
Sound Speed ◽  
Sound Propagation ◽  
Low Frequency ◽  
Muddy Sediments ◽  
Broadband Sound

Determination of equivalent sound speed profiles for ray tracing in near-ground sound propagation

2007 ◽  
Vol 122 (3) ◽  
pp. 1391-1403 ◽  
Author(s):  
John M. Prospathopoulos ◽  
Spyros G. Voutsinas
Keyword(s):  
Ray Tracing ◽  
Sound Speed ◽  
Sound Propagation

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.

An improved approximation for sound propagation in a medium with a linear sound‐speed profile

1995 ◽  
Vol 98 (5) ◽  
pp. 2924-2925
Author(s):  
Michael J. White ◽  
Y. L. Li ◽  
Jianfeng Tai
Keyword(s):  
Sound Speed ◽  
Sound Propagation ◽  
Speed Profile ◽  
Sound Speed Profile
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