点目标反射太阳短波红外辐射特性分析  

Characteristics Analysis of Solar Short-wave Infrared Radiation Reflected by Point Target

作　　者：朱小红[1] 蔺素珍[1] 刘震[1] 张商珉 

机构地区：[1]中北大学计算机与控制工程学院,山西太原030051

出　　处：《火炮发射与控制学报》2015年第2期16-21,共6页Journal of Gun Launch & Control

基　　金：山西省自然科学基金项目(2013011017-4)

摘　　要：针对过强的太阳辐射会影响成像质量问题,分析了点目标反射太阳短波红外辐射过程以及目标、地球和太阳之间的几何位置关系,建立了大气层表面的太阳短波红外辐射模型,太阳高度角、太阳方位角和太阳入射角计算模型,以及地面点目标反射太阳短波红外辐射模型,对这些模型进行了仿真试验,揭示了太阳高度角、太阳方位角和太阳入射角随时刻的变化规律,太阳短波红外直射辐射、散射辐射和地面反射辐射随时刻的变化规律,以及点目标反射太阳短波红外辐射随时刻的变化规律,并利用试验图像验证了模型的有效性,为研究短波红外成像等提供参考。Aimed at the problem that strong solar radia process of solar short wave infrared radiation reflected by tion can affect imaging quality, the point target and the geometrical posi- tion relationship among point target, earth and sun were analyzed. The model of solar short- wave infrared radiation on the atmosphere surface, the calculation model of solar elevation, azimuth and incidence angle, and the model of solar short-wave infrared radiation reflected by point target were established. The simulation experiments displayed the change law of solar elevation, azimuth and incidence angle with time, the change law of solar short-wave infrared direct radiation, scattered radiation, and ground reflected radiation and point target reflected solar short-wave infrared radiation with time. As a result, the validity of these models were verified by experimental images. This paper provides reference for study on short-wave infrared imaging.

关 键 词：图像处理 短波红外 辐射特性 点目标 

分 类 号：TN219[电子电信—物理电子学]