典型卫星表面材料可见光偏振特性分析  

Analysis of Visible Polarization Characteristics of Typical Satellite Surface Materials

作　　者：陈伟力[1] 李军伟[1] 孙仲秋 王淑华[1] 王静[1] 陈艳[1] 邓蓉[1] Chen Weili;Li Junwei;Sun Zhongqiu;Wang Shuhua;Wang Jing;Chen Yan;Deng Rong(Science and Technology on Optical Radiation Laboratory,Beijing Institute of Environmental Features Beijing 100854,China;College of Geographical Sciences,Northeast Normal University,Changchun,Jilin 130024,China)

机构地区：[1]北京环境特性研究所光学辐射重点实验室,北京100854 [2]东北师范大学地理科学学院,吉林长春130024

出　　处：《光学学报》2018年第10期332-340,共9页Acta Optica Sinica

摘　　要：对典型卫星表面材料进行了可见光偏振测试,基于测试数据完成了表面材料的可见光反射特性分析;推导分析了基于偏振双向反射分布函数的可见光反射偏振传输模型,并基于测试数据对模型的模拟计算精度进行了评价。结果表明:模型计算的反射偏振度与实测结果有较好的一致性,且在镜面反射情况下,典型卫星表面常用的主体包覆材料偏振度最小,但偏振角有最大值。即材质表面组成成份不同,其可见光反射偏振特性有较大差异。结合考虑目标表面的偏振特性更有助于区分目标的物质组成,研究成果可为改善典型卫星目标探测的有效性提供基础数据支撑。We carry out a visible spectra polarization test to the typical satellite surface materials,and accomplish visible reflect characteristic test based on test data.Then,we deduce the visible reflect polarization transfer model which is based on the polarization bidirectional reflectance distribution function,and evaluate the simulated computation accuracy of the model based on measured data.The results show that the reflected polarization degree of the simulated model is in good agreement with the measured results.And the polarization degree of coating materials used for typical satellite surface is usually minimum at the condition of mirror reflection,but the angle of polarization has the maximum value.That is to say,if the surface compositions of materials are different,the polarization characteristics of the visible light reflection are quite different.It is more helpful to distinguish the material composition of the target by considering the polarization characteristics of the target surface.The research results can provide basic data support for improving the effectiveness of satellite detection.

关 键 词：可见光反射偏振特性 典型卫星表面材料 偏振双向反射分布函数 偏振度 偏振角 

分 类 号：O436.2[机械工程—光学工程]