Journal article
A three-dimensional model for acoustic scattering from rough ocean bathymetry
Computers & mathematics with applications (1987), Vol.11(7), pp.863-871
1985
DOI: 10.1016/0898-1221(85)90181-6
Abstract
Scattering of acoustic waves by rough bathymetry is an important factor influencing the performance of array systems. This paper discusses a computer model that calculates the directional distribution of bottom-scattered energy received at an array. The model simultaneously includes the effect of bathymetric scattering and refraction caused by a varying sound-speed structure in the water column. The numerical techniques used include the split-step solution to the parabolic equation approximation to the Helmholtz equation away from the boundary, propagation of the coherence function near the boundary, and a modified Kirchhoff formulation to incorporate scattering. An exponential substitution approximation, which can reduce the computation time of the scattering component by two orders of magnitude with little loss in accuracy, is described.
Details
- Title: Subtitle
- A three-dimensional model for acoustic scattering from rough ocean bathymetry
- Creators
- R.N. Baer - United States Naval Research LaboratoryD.H. Berman - United States Naval Research LaboratoryJ.S. PerkinsE.B. Wright - United States Naval Research Laboratory
- Resource Type
- Journal article
- Publication Details
- Computers & mathematics with applications (1987), Vol.11(7), pp.863-871
- DOI
- 10.1016/0898-1221(85)90181-6
- ISSN
- 0898-1221
- eISSN
- 1873-7668
- Publisher
- Elsevier Ltd
- Language
- English
- Date published
- 1985
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627334602771
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