可见光散射模型双向反射分布函数的仿真分析  

Simulation and Analysis of Bidirectional Reflectance Distribution Function of Visible Light Scattering Model

作　　者：刘燕[1] 张健[1] 吕瑛[1] LIU Yan;ZHANG Jian;LYU Ying(College of Information Engineering,Northwestern Polytechnical University Ming De College,Xi an 710124,China)

机构地区：[1]西北工业大学明德学院信息工程学院

出　　处：《微处理机》2019年第3期40-42,共3页Microprocessors

基　　金：青促会基金(1188000111)

摘　　要：双向反射分布函数(BRDF)模型是建立空间目标反射太阳光光度曲线的重要组成部分,反映了目标自身特性对反射光强的影响,为精确研究其中包含的一般规律,利用MATLAB软件,对已成功应用于空间目标识别领域的T-SBRDF模型进行仿真和分析。针对粗糙度较小和粗糙度较大的两种情况,观察研究反射角方向、T-S双向反射分布函数以及BRDF值等参量,对反射的镜面反射/漫反射程度作出判定。仿真分析所得出的结论为后续反演空间目标位置参数提供了依据。Bidirectional Reflectance Distribution Function(BRDF)model is an important part of establishing the photometric curve of space target reflected sunlight,which reflects the influence of the target's own characteristics on the reflected light intensity.In order to accurately study the general rules contained in it,the T-S BRDF model,which has been successfully applied in the field of space target recognition,is simulated and analyzed through MATLAB.According to the two situations of smaller roughness and larger roughness,the reflection angle direction,T-S bidirectional reflection distribution function and BRDF value are observed and studied to judge the degree of specular reflection/diffuse reflection of reflection.The conclusion drawn from the simulation analysis provides a basis for the subsequent inversion of spatial target position parameters.

关 键 词：双向反射分布函数 粗糙度 漫反射 镜面反射 观测角 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术] O432[自动化与计算机技术—计算机科学与技术]