Title :
An Efficient Normal Mode Solution to Wave Propagation Prediction
Author :
Clark, Cathy Ann ; Smith, Kevin B.
Author_Institution :
Naval Undersea Warfare Center, Newport, RI
Abstract :
In this paper, an overview of a normal mode method of solving the Helmholtz wave equation to describe the underwater sound field for a fixed-point source in a plane multilayered medium is presented. The mode functions are well-defined at all depths of the medium as they are continuous across turning points of the separated depth-dependent differential equation. Comparisons of model results to a limited number of measured data sets and benchmark propagation codes are presented.
Keywords :
Helmholtz equations; underwater acoustic propagation; Helmholtz wave equation; benchmark propagation codes; fixed-point source; normal mode method; plane multilayered medium; underwater sound propagation; wave equation; Acoustic diffraction; Acoustic propagation; Computational efficiency; Differential equations; Documentation; Oceans; Partial differential equations; Sea measurements; Sea surface; Turning; Acoustics; diffraction; normal modes; underwater sound propagation; wave equation;
Journal_Title :
Oceanic Engineering, IEEE Journal of
DOI :
10.1109/JOE.2008.2005344
