空间目标热控涂层材料偏振反射特性研究  

Study on Polarized Reflection Characteristics of Space Object Thermal Control Coatings

作　　者：王凯 刘宏 张修兴[1] WANG Kai;LIU Hong;ZHANG Xiu-xing(School of Physics and Electrical Engineering,Weinan Normal University,Weinan,Shaanxi 714000,China;State Key Laboratory of Astronautic Dynamics,Xi'an 710043,China)

机构地区：[1]渭南师范学院物理与电气工程学院,陕西渭南714000 [2]宇航动力学国家重点实验室,西安710043

出　　处：《光子学报》2020年第12期205-215,共11页Acta Photonica Sinica

基　　金：国家自然科学基金(No.11304230);陕西省教育厅专项科研计划(No.20JK0632)。

摘　　要：针对空间目标偏振探测识别的需求,基于三分量偏振二向反射分布函数模型对空间目标热控涂层材料的偏振特性进行了仿真,给出了被动照射条件下的反射光Stokes矢量和线偏振度,以及主动偏振探测条件下偏振二向反射分布函数矩阵元素的空间分布.搭建实验平台对两种典型空间目标热控涂层材料SR107和S781样品的偏振特性进行了测量,测量结果显示偏振二向反射分布函数模型具有较高的仿真精度,最后根据仿真和实测结果对空间目标热控涂层偏振特性规律进行了分析.本文研究对空间目标偏振探测应用具有重要的指导意义.Focusing on the demand of polarized detection for space objects,the polarized characteristics of space object thermal control coatings are simulated based on three-component polarized Bidirectional Reflection Distribution Function(pBRDF)model,the reflected Stokes vector and Degree of Linear Polarization(DOLP)in passive illustration condition are given,and the pBRDF matrix in active polarized detection is presented.The simulation and measurement of polarized characteristics of two typical space object thermal control coatings SR107 and S781 show the accuracy of three-component pBRDF model.The polarized properties of space object thermal coatings are analyzed with simulated and measured data.The conclusion of this paper presents important references for space object polarized detection applications.

关 键 词：偏振 偏振特性 偏振二向反射分布函数 建模仿真 空间目标 热控涂层 

分 类 号：O439[机械工程—光学工程]