大气传输中舰船红外辐射分布的计算方法

Calculation of Infrared Radiation Distribution of Ship Transferred in Atmosphere

舰船红外辐射包括自身辐射和环境辐射两个方面，影响因素多，计算复杂，并且其到达探测器前，要经过一个大气传输过程，受到吸收和散射衰减。舰船上红外辐射分布可通过构建稳态热平衡方程来得到，而大气衰减作用可等效为透射率的变化。

The IR radiation of a ship includes both aspects such as self-radiation and environment radiation. There are many factors in the radiation, and the calculation is very complex. Before reaching the detector, there will be a course of the transmission in atmosphere. It will be attenuated by the air＇s absorbing and dispersing. The distribution of the IR radiation from a ship can be calculated by constructing an equation of heat balance in stable state. The attenuation of the air can be thought as an equivalent change of transmissivity.