On horizontal coherence estimates from path integral theory for sound propagation through random ocean sound-speed perturbations

2013 ◽  
Vol 134 (4) ◽  
pp. 3116-3118 ◽  
Author(s):  
John A. Colosi
Keyword(s):  
Path Integral ◽  
Sound Speed ◽  
Sound Propagation ◽  
Integral Theory

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

A path integral theory of relaxation I

1992 ◽  
Vol 181 (3-4) ◽  
pp. 441-462 ◽  
Author(s):  
Fumiaki Shibata ◽  
Chikako Uchiyama
Keyword(s):  
Path Integral ◽  
Integral Theory
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