Source localization with broad-band matched-field processing in shallow water

1996 ◽  
Vol 21 (4) ◽  
pp. 402-412 ◽  
Author(s):  
N.O. Booth ◽  
P.A. Baxley ◽  
J.A. Rice ◽  
P.W. Schey ◽  
W.S. Hodgkiss ◽  
...  
Keyword(s):  
Shallow Water ◽  
Source Localization ◽  
Broad Band ◽  
Matched Field Processing

Matched-field processing for broad-band source localization

1996 ◽  
Vol 21 (4) ◽  
pp. 384-392 ◽  
Author(s):  
Z.-H. Michalopoulou ◽  
M.B. Porter
Keyword(s):  
Source Localization ◽  
Broad Band ◽  
Matched Field Processing

scholarly journals USE OF RAY TRACING MODELING IN SHALLOW WATER ACOUSTIC SOURCE LOCALIZATION COMBINED WITH MATCHED-FIELD PROCESSING TECHNIQUES

2016 ◽  
Vol 34 (3) ◽  
Author(s):  
Vicente Barroso Junior ◽  
Orlando Camargo Rodríguez ◽  
Carlos Eduardo Parente Ribeiro ◽  
Luiz Gallisa Guimarães
Keyword(s):  
Shallow Water ◽  
Normal Mode ◽  
Source Localization ◽  
Acoustic Modeling ◽  
Acoustic Source ◽  
Propagation Models ◽  
Matched Field Processing ◽  
Acoustic Source Localization ◽  
Long Time ◽  
Processing Techniques

ABSTRACT. Underwater source localization based on acoustic modeling has been a subject of intensive research since a long time. In the case of shallow water scenarios (which are characterized by multilayered bottoms) normal-mode based acoustic propagation models are often combined with Matched-Field Processing techniques in order to provide accurate estimates of both source range and depth...Keywords: underwater acoustic modeling, ray-based models, normal mode models. RESUMO. A localização de fontes submarinas por meio de modelos de propagação acústica é um antigo problema de grande interesse científico. Em cenários deáguas rasas, que se caracterizam normalmente por fundos com complexos sistemas multicamadas, os modelos de propagação baseados na teoria de modos normais são geralmente combinados com técnicas de Processamento por Campo Casado para...Palavras-chave: modelagem ac´ustica submarina, modelos de raios, modelos de modos normais.

Matched field processing for underwater source localization

2003 ◽  
Author(s):  
D.D. Pierce ◽  
J.H. Miller ◽  
C.W. Therrien
Keyword(s):  
Source Localization ◽  
Matched Field Processing

Nonlinear Fourier Analysis for Shallow Water Waves

2021 ◽  
Author(s):  
Alfred R. Osborne
Keyword(s):  
Fourier Series ◽  
Fourier Analysis ◽  
Shallow Water ◽  
Nonlinear Wave ◽  
Water Waves ◽  
Wave Equations ◽  
Superposition Principle ◽  
Broad Band ◽  
Kp Equation ◽  
Linear Superposition

Abstract I consider nonlinear wave motion in shallow water as governed by the KP equation plus perturbations. I have previously shown that broad band, multiply periodic solutions of the KP equation are governed by quasiperiodic Fourier series [Osborne, OMAE 2020]. In the present paper I give a new procedure for extending this analysis to the KP equation plus shallow water Hamiltonian perturbations. We therefore have the remarkable result that a complex class of nonlinear shallow water wave equations has solutions governed by quasiperiodic Fourier series that are a linear superposition of sine waves. Such a formulation is important because it was previously thought that solving nonlinear wave equations by a linear superposition principle was impossible. The construction of these linear superpositions in shallow water in an engineering context is the goal of this paper. Furthermore, I address the nonlinear Fourier analysis of experimental data described by shallow water physics. The wave fields dealt with here are fully two-dimensional and essentially consist of the linear superposition of generalized cnoidal waves, which nonlinearly interact with one another. This includes the class of soliton solutions and their associated Mach stems, both of which are important for engineering applications. The newly discovered phenomenon of “fossil breathers” is also characterized in the formulation. I also discuss the exact construction of Morison equation forces on cylindrical piles in terms of quasiperiodic Fourier series.

Mirages in shallow water matched‐field processing

1995 ◽  
Vol 97 (5) ◽  
pp. 3291-3291 ◽  
Author(s):  
G. L. D’Spain ◽  
J. J. Murray ◽  
W. S. Hodgkiss ◽  
N. O. Booth
Keyword(s):  
Shallow Water ◽  
Matched Field Processing
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