摘要
利用二向反射分布函数(binomial reflection distribution function,BRDF)理论,结合目标表面的镜面反射和漫反射分量,建立完善的偏振二向反射分布函数(polarization binomial reflection distribution function,pBRDF)模型,并通过不同入射角、散射角下pBRDF的仿真模拟数据与实验数据的比较分析,初步断定该模型可准确描述目标的偏振特性。基于该偏振模型,进一步对pBRDF与目标材料的粗糙度以及复折射率的变化进行仿真。仿真结果表明:目标pBRDF的峰值随着粗糙度的增大逐渐减小,随复折射率的增大逐渐增大。
Using the polarization binomial reflection distribution function （BRDF）theory,and combining with the specula reflectance and diffuse reflectance of the target surface,the perfect polari-zation binomial reflection distribution function （pBRDF）model is established,and by comparatively analysis of the simulation data and the experiment data of pBRDF at the incidence angle and scattering angle,it is preliminarily concluded that the model can accurately describe the polarization properties of the target.Then the paper applies this polarization model to make some simulation about the value of the pBRDF change with the target’s roughness and complex refractive index.The simulation results show that the peak of the pBRDF decreases with the increasing roughness,and increases with the in-creasing complex refractive index.
出处
《装备学院学报》
2014年第4期106-111,共6页
Journal of Equipment Academy
关键词
镜面反射
漫反射
二向反射分布函数
偏振特性
specula reflectance diffuse reflectance binomial reflection distribution function （BRDF） polarization properties
