光学学报, 1996, 16 (3): 262, 网络出版: 2006-12-04
不同表面激光双向反射分布函数的实验研究
Experimental Study on Bidirectional Reflectance Distribution Function of Laser Scattering from Various Rough Surfaces
双向反射分布函数 激光雷达截面 电磁散射 粗糙度 BRDF(Bidiretional Reflectance Distribution Functio LRCS (Laser Radar Cross Section) electromagnetic scattering roughness
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0.63 μm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，两者有良好的吻合。
Abstract
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.
吴振森, 韩香娥, 张向东, 江荣熙, 魏庆农, 徐竹. 不同表面激光双向反射分布函数的实验研究[J]. 光学学报, 1996, 16(3): 262. 吴振森, 韩香娥, 张向东, 江荣熙, 魏庆农, 徐竹. Experimental Study on Bidirectional Reflectance Distribution Function of Laser Scattering from Various Rough Surfaces[J]. Acta Optica Sinica, 1996, 16(3): 262.
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