【摘要】 利用 L owtran7大气传输模型计算 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。依据粗糙面光散射理论与双向反射分布函数计算空中目标表面对太阳辐射和云层对阳光反射的散射。利用传热学和背景辐射理论 ,根据能量守恒定律建立空间目标表面温度的热平衡方程。以气球为例 ,计算不同表面涂层材料的气球 ,在不同地理位置、不同高度和不同时间条件下 ,其温度及辐射功率的变化。分析空间目标红外辐射特性的一般规律和特征。更多还原

【Abstract】 Using bidirectional reflectance distribution function,the scattering of visible light from a spatial object the scattering of solar radiation which is reflected by cloud are calculated. Based on the theories of heat transmission and background radiation, the thermal balance equation is established according to the law of conservation of energy. Take balloon as an example, the temperature and radiation power which vary with time, height and geographic location are calculated.The general law of infrared radiation characteristic of spatial object is analyzed.更多还原