摘要
根据粗糙面电磁散射理论讨论了粗糙表面双向反射分布函数（ＢＲＤＦ）和单位面积激光雷达截面的关系。测量不同粗糙度金板、铝基、钢基和涂层样片在０．６３μｍ的双向反射分布函数。分析了高度起伏均方根δ，斜率起伏均方根ｓ，介电常数对双向反射分布函数的影响。最后，将部分粗糙样片的双向反射分布函数理论计算结果与实验数据比较。
The relationship between Bidirectional Reflectance Distribution Function (BRDF) and Laser Rader Cross Section (LRCS) is introduced by means of the electromagnetic radiation and scattering theories. The experimental measurements are made for BRDF of various samples with roughness at wavelength of 0.63 μm, and the influences of the surface height standard deviation, the correlation length and dielectric constant on BRDF are considered. The partial measured data are in good agreement with theorical calculation.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1996年第3期262-268,共7页
Acta Optica Sinica
基金
国防科技预研基金
关键词
双向
反射分布函数
激光雷达截面
电磁散射
BRDF(Bidiretional Reflectance Distribution Function), LRCS (Laser Radar Cross Section),electromagnetic scattering, roughness.
