作　　者： ; ; ; ; ; ; ; ;

机构地区： 华中科技大学光电子科学与工程学院激光技术国家重点实验室

出　　处： 《光电工程》 2010年第9期110-114,共5页

摘　　要： 针对目标的探测、识别以及目标红外特征的模拟,本文提出采用人工红外光源照射目标的方法,该方法以人工红外光源照射目标的物理模型为基础,综合考虑自然环境与人工红外光源对目标的影响,建立起目标表面温度的计算模型和目标红外辐射的计算模型。在分析以碳硅棒为红外光源的光谱特性基础上,对合肥某建筑物表面照射时目标在3～5μm和8～14μm波段的红外辐射进行了仿真计算与分析。结果表明:采用不同功率的光源照射时,目标的红外辐射将发生改变,相同条件下8～14μm波段的功率利用率大于3～5μm波段的功率利用率。 As to detection, recognition and simulation for infrared characteristic of target, a method based on the physical model of the targets which are irradiated through infrared illuminator is proposed. The normal circumstance and artificial infrared illuminator were combined to affect targets. The calculation model of surface temperature and infrared radiation character was built. Analysis of spectra characteristic based on carbon-silicon rod infrared illuminator, taking the Hefei＇s building for example, 3-5 μm and 8-14 μm wave-band＇s infrared radiation was calculated and analyzed. The results show that target＇s infrared radiation character is changed when irradiated by using differential power. In the same condition, the power usage of 8-14 μm wave-band is greater than that of 3-5 μm wave-band.

关 键 词： 人工光照 计算模型 地面目标 光谱特性 红外辐射

领　　域： [电子电信]