摘要
利用Lowtran7大气传输模型计算了 0 .4～ 0 .8μm可见光波段的太阳辐射、大气自身的热辐射以及天地背景辐射。利用粗糙面光散射理论与双向反射分布函数计算了空中目标表面对太阳辐射、云层对阳光反射的散射。并利用传热学和背景辐射理论 ,根据能量守恒定律建立了空间目标表面温度的热平衡方程。以气球为例 ,计算了不同表面涂层材料的气球在不同地理位置、不同高度、不同时间、温度及辐射功率的变化。
Using atmospheric transmission model softwave Lowtran 7, the solar, atmospheric, sky and earth background radiation from 4 to 8 μm are calculated. According to the relationship between optical scattering theories on rough surface and bidirectional reflectance distribution function, the scattering of visible light from a spatial object is calculated. Based on the theories of heat transmission and background radiation, the surface thermal balance equation of spatical object is established according to the law of conservation of energy. Take balloon as an example, dependence of the temperature and radiation power on time, height and geographic location is calculated. The general law of infrared radiation characteristic of spatial object is obtained.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2003年第10期1250-1254,共5页
Acta Optica Sinica
基金
国家自然科学基金 (6 0 0 810 0 2 )
目标与环境光学特征国防科技重点实验室基金资助课题
