An Estimation Method of Vertical Sound Speed Profile in Mid-Deep Water Using Multipath Propagation

1987 ◽  
Vol 26 (S1) ◽  
pp. 73 ◽  
Author(s):  
Hiroyuki Hachiya ◽  
Shigeo Ohtsuki ◽  
Motoyoshi Okujima
Keyword(s):  
Deep Water ◽  
Sound Speed ◽  
Multipath Propagation ◽  
Estimation Method ◽  
Speed Profile ◽  
Sound Speed Profile ◽  
Vertical Sound

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 estimation method of vertical sound‐speed profiles in shallow water using multipath propagation

1988 ◽  
Vol 84 (S1) ◽  
pp. S150-S151
Author(s):  
Hiroyuki Hachiya ◽  
Shigeo Ohtsuki ◽  
Motoyoshi Okujima
Keyword(s):  
Shallow Water ◽  
Sound Speed ◽  
Multipath Propagation ◽  
Estimation Method ◽  
Vertical Sound

Compensation of INS Errors based on LBL References in a Quadratic Sound-Speed-Profile

2020 ◽  
Author(s):  
Yohannes S.M. Simamora ◽  
Harijono A. Tjokronegoro ◽  
Edi Leksono ◽  
Irsan S. Brodjonegoro
Keyword(s):  
Sound Speed ◽  
Speed Profile ◽  
Sound Speed Profile
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