摘要
提出了一种计算目标散射特性的方法.利用辐射理论建立了太阳辐射和地球及其大气反射光辐射的数学模型.采用Davies双向反射分布函数,计算了卫星目标的漫反射,通过仿真实验分析了空间目标在可见光波段的光谱辐照度与入射角、反射角和波长的关系.确定了卫星辐照度最大时的反射角为39.28.
This article presents a method of calculating spatial object＇ cahracteristic. The solar irradiation and earth background radiation are calculated with a simplified model. The bidirectional reflectance distribution function （BRDF） links the solar irradiation and light scattering from the object and effectively describes the scattering char- acteristics and the spectral characteristics. A model on spatial target＇ s scattering characteristics invisible is built by choosing appropriate models of BRDF and using the radiation theories. Then some optical parameters from target surface are calculated and the scattering characteristics and spectral distribution of the spatial object are analyzed.
出处
《哈尔滨理工大学学报》
CAS
北大核心
2009年第2期82-85,共4页
Journal of Harbin University of Science and Technology
