摘要
本文给出在小瑞利参数情况下波导中由粗糙交界面所产生的散射波强度,其中I_(lj)~s正比于1/4倍第l(或j)号简正波在粗糙交界面上的强度以及散射系数m_(lj)~s。m_(lj)~s与平面波散射系数m_s存在下列关系:其中V(θ_l)和V(θ_j)
The scattering problem of a rough interface in a waveguide under small Rayleigh's parameter approximation is discussed in this paper. The derived scattering
intensity can be written in the form 1, 2, Where Iljs is propo-
rtional to mljs which is defined as the normal mode scattering coefficient for the rough
interface. A relation has been found between w/; and the plane wave scattering coefficient ms; mljs= (2n)2ms/|V(θl)F(θi)| in which F(θl) and F(θi) represent the reflection coefficients respectively for incident angles θi and θi.
出处
《声学学报》
EI
CSCD
北大核心
1989年第2期126-132,共7页
Acta Acustica
