卫星的红外辐射特征研究

Infrared feature of the satellite

卫星的红外辐射特征对于工作卫星与失效卫星的判别具有重要意义,根据卫星与地球、太阳之间的位置关系,计算了太阳直接辐射角系数,利用随机模拟法计算了地球反照和地球红外辐射角系数,建立了卫星温度控制方程,并利用辐射传递系数的概念和蒙特卡洛方法进行辐射换热的计算,对卫星温度场进行了求解,讨论了卫星红外辐射特征的计算方法,并对其特性进行了分析计算,结果表明:卫星的散热面是区别工作卫星和失效卫星的依据。

The infrared feature of the satellite has important significance to the identifying of the satellite and the distinguishing of the working satellite and the non-working satellite. The view factor of the sun direct radiation is calculated according to the locations of the sun, the earth and the satellite. The view factor of the albedo and the earth infrared radiation are calculated with the random method. The temperature control equation is established, and the radiation heat transfer is calculated with the concept of the radiation transfer coefficient and the Monte-Carlo method. The method of calculating the infrared feature of the satellite is discussed, and the infrared feature of the satellite is calculated and analyzed. It can be concluded from the results that the satellite can be found and identified more easily in the sunlight region, and the heat exchange surface of the satellite can be as the characteristic position for distinguishing the working satellite and the non-working satellite.