RENORMALIZATION OF PROPAGATION IN A WAVE-GUIDE WITH ROUGH BOUNDARIES

被引:10
作者
BERMAN, DH
机构
[1] Department of Physics and Astronomy, University of Iowa, Iowa City
关键词
D O I
10.1121/1.404295
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
A scheme is presented for computing the mean field in a waveguide with rough boundaries using nonperturbative half-space scattering amplitudes. It is shown that the presence of a second scattering surface renormalizes the mean half-space amplitudes even when surface roughness on the two bounding surfaces is uncorrelated. The method of "smoothing" is used to show how recent work on half-space scattering amplitudes might be incorporated into solutions of the wave equation in more realistic settings.
引用
收藏
页码:309 / 314
页数:6
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