摘要
通过研究典型目标双向反射分布函数实验室测量与建模的方法分析目标的散射特性。给出F4(聚四氟乙烯)粉压制板及所测样品的反射光强度,通过经标定过的反射标准板传递,在半球空间内计算出样品在红外(1．06μm)波段的双向反射分布函数。根据五参数半经验统计模型和遗传算法,对各样片的BRDF进行了优化建模。按照模拟实验数据的标准均方误差最小的标准选择了模型参数．并将实验测量结果与模型输出进行了比对．结果表明该方法是分析目标散射特性的可行性方法。
A method for the measurement of scattering characteristics of the sample is proposed. The powder pressboard of F4 （polytetrafluoroethylene （PTFE）） was used as reflection standard board. We measured the reflection luminous intensity scattering data of sample and standard board. By transmiting through reflection standard board, we obtained the sample＇s BRDF at hemisphere space （A = 1.06 μm）. Then we compared this result with the output result of the model. The experimental result indicates that this method is a feasible to analyse the scattering characteristics of the sample.
出处
《量子电子学报》
CAS
CSCD
北大核心
2006年第4期533-536,共4页
Chinese Journal of Quantum Electronics
关键词
激光技术
目标特性
双向反射分布函数
laser techniques
sample characteristic
bidirectional reflectance distribution function
