Angular memory effect of millimeter-wave scattering from two-dimensional conducting random rough surfaces

被引：3
|
作者：
Chan, TK
Kuga, Y
Ishimaru, A
机构：
[1] Department of Electrical Engineering, University of Washington, Box 352500, Seattle, 98195-2500, WA
来源：
RADIO SCIENCE | 1996年 / 31卷 / 05期
关键词：
D O I：
10.1029/96RS01312
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
An experimental study was conducted to investigate the angular memory effect of millimeter-wave scattering from two-dimensional conducting random rough surfaces. The surfaces under investigation were machine-fabricated with known Gaussian roughness statistics, and the copolarized and cross-polarized angular correlation functions (ACFs) of scattering amplitudes were measured. It was found that for the case of reference antenna positions located bistatically in a backward direction, the measured ACF exhibits broad response when single scattering dominates but two peaks when multiple scattering dominates. These observations are in good agreement with the second-order Kirchhoff approximation (KA2). Specifically, the observed broad and peak responses are analytically identified to be due to the first-order and second-order (ladder and cyclical) scattering components, respectively, in KA2.
引用
收藏
页码：1067 / 1076
页数：10
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