Shallow water reverberation: normal-mode model predictions compared with bistatic towed-array measurements

1993 ◽  
Vol 18 (4) ◽  
pp. 474-482 ◽  
Author(s):  
D.D. Ellis
Keyword(s):  
Shallow Water ◽  
Normal Mode ◽  
Array Measurements ◽  
Model Predictions ◽  
Towed Array

scholarly journals A normal‐mode theory of shallow‐water reverberation

1993 ◽  
Vol 94 (3) ◽  
pp. 1785-1785 ◽  
Author(s):  
Renhe Zhang ◽  
Guoliang Jin ◽  
Dinghua Guan ◽  
Wenhua Li ◽  
Xinfang Qiu
Keyword(s):  
Shallow Water ◽  
Normal Mode ◽  
Mode Theory ◽  
Normal Mode Theory

scholarly journals A Depth-Bistatic Bottom Reverberation Model and Comparison with Data from an Active Triplet Towed Array Experiment

2020 ◽  
Vol 10 (9) ◽  
pp. 3080
Author(s):  
Youngcheol Jung ◽  
Woojae Seong ◽  
Keunhwa Lee ◽  
Seongil Kim
Keyword(s):  
Time Series ◽  
Deep Water ◽  
Water Environment ◽  
Ray Theory ◽  
Reverberation Time ◽  
Environment Model ◽  
Line Array ◽  
Model Predictions ◽  
Towed Array ◽  
Good Agreement

In this paper, a depth-bistatic bottom reverberation model that employs the ray theory is presented. The model can be applied to an active towed array in the ocean. The reverberation time series are modeled under the depth-bistatic assumption and their Doppler shift is calculated based on the actual source–receiver geometry. This model can handle N × 2D range-dependent bathymetry, the geometry of a triplet array, and the Doppler motion of the source, targets, and receiver. The model predictions are compared with the mid-frequency reverberation data measured by an active triplet towed array during August 2015 in the East Sea, Korea. These data are collected with a variable depth source at mid-frequency and the triplet line array in a deep-water environment. Model predictions of the beam time series and its spectrogram are in good agreement with the measurement. In particular, we discuss the effects of the source and receiver depths on the reverberation in deep water observed in both the measured and modeled results.

A comparison of normal mode and parabolic equation range‐dependent propagation models as tools for acoustic communication in shallow water

2001 ◽  
Vol 109 (5) ◽  
pp. 2450-2451
Author(s):  
Natalia A. Sidorovskaia ◽  
Robert L. Field ◽  
Cheryl L. Sephus ◽  
George E. Ioup ◽  
Juliette W. Ioup
Keyword(s):  
Parabolic Equation ◽  
Shallow Water ◽  
Normal Mode ◽  
Acoustic Communication ◽  
Propagation Models
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