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研究人工红外光源对地面目标红外特性的影响,对目标的探测、识别、红外特征的模拟有重要的意义。建立了人工红外光源照射目标的理论模型,对影响目标表面温度的各种因素进行了分析,重点讨论了人工光源对目标表面温度的影响。以合肥某建筑物为例,对红外光源照射时的目标表面温度进行了计算与测量,在此基础上对目标红外辐射进行了计算与分析。结果表明:人工红外光源照射目标时,目标红外特性的影响主要取决于人工光源的照射功率、照射时间、照射距离以及入射角。
Studying the influence of artificial infrared light source on the infrared target of the ground target is of great significance to the target detection, recognition and infrared feature simulation. The theoretical model of artificial infrared light source irradiation target is established. Various factors affecting the target surface temperature are analyzed. The influence of artificial light source on the target surface temperature is discussed. Taking a building in Hefei as an example, the target surface temperature of infrared light source was calculated and measured. Based on this, the target infrared radiation was calculated and analyzed. The results show that when the artificial infrared light source irradiates the target, the influence of the target infrared characteristic mainly depends on the irradiation power, the irradiation time, the irradiation distance and the incident angle of the artificial light source.