地面目标红外辐射特征测试研究

Experimental Investigation on Infrared Characteristic of Ground Target

为研究地面目标红外辐射特征,进行了室内材料测试和外场地面目标测试,分析材料材质、太阳辐射、风速、空气温湿度、自身热源等因素对地面目标红外辐射特征的影响。结果表明:材料材质对红外辐射特征影响显著;冷态时,地面目标红外辐射特征主要受太阳辐射影响,其次是空气温度、材料热容量和风速;热态时,地面目标红外辐射特征主要受工作热源影响,其次是太阳辐射、空气温度、材料热容量和风速。在进行地面目标红外隐身设计时,应考虑太阳辐射、自身热源等因素的影响,并从结构设计和材料使用两方面着手。

In order to study infrared characteristic of ground target, the experimental tests are carried out, including material testing in the laboratory and out-field ground target testing, and the effects of different factors such as the material, solar irradiance, wind speed, air temperature, air humidity and its own heat on infrared characteristic of ground target are analyzed. The results show that： material has significant influences on infrared characteristic; when it is cold, infrared characteristic is mainly influenced by solar radiation, followed by air temperature, thermal inertia of the material and wind speed; when it is hot, infrared characteristic is mainly affected by heat source itself, followed by solar radiation, air temperature, thermal inertia of material and wind speed. The effects of solar irradianee and its own heat must be taken into account during the infrared stealth design of ground target in terms of mechanism design and employment of material.