Forward scattering of pulses from a rough sea surface by Fourier synthesis of parabolic equation solutions

被引:10
|
作者
Miles, DA
Hewitt, RN
Donnelly, MK
Clarke, T
机构
[1] QinetiQ, Winfrith Technology Centre, Dorset DT2 8XJ, United Kingdom
来源
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2003年 / 114卷 / 03期
关键词
D O I
10.1121/1.1595106
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
A variable depth step implementation of the range-dependent acoustic model (RAM) is applied to the modeling of forward scattering from a rough sea surface. The sea surface is treated within RAM simply as an internal interface between a water layer and an air upper halfspace. A comparison with a numerically exact integral equation is undertaken for the scattering of single frequencies from Pierson-Moskowitz sea surfaces. The method is extended to model the variability of linear frequency modulated pulses from a series of frozen sea surfaces in a shallow water waveguide. The subsequent effect of rough boundary scattering on the replica correlation process is investigated. (C) 2003 Acoustical Society of America.
引用
收藏
页码:1266 / 1280
页数:15
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