中波红外隐身目标光谱探测的谱带选择方法  

Band selection method of spectrum detection about medium wave infrared stealth target

作　　者：林涛[1] 刘飞[1] 韩平丽 邵晓鹏[1] 任勐[2] 吕鸿鹏[2] 张建奇[1] 

机构地区：[1]西安电子科技大学物理与光电工程学院,陕西西安710071 [2]西安现代控制技术研究所,陕西西安710065

出　　处：《红外与激光工程》2014年第4期1047-1051,共5页Infrared and Laser Engineering

基　　金：国防科工局基础科研项目(A0920110004)

摘　　要：针对采用各种隐身技术的红外目标与周围背景之间的辐射差异不明显，导致探测困难这一问题，利用目标和背景在窄波带内的辐射特征具有较大差异这一特性，建立了基于红外光谱探测的谱带内红外辐射对比度的研究。通过对红外辐射相对对比度以及绝对对比度的分析，综合大气条件在整个传输过程中的影响，结合理论计算以及实验分析确定出用于红外隐身目标探测的最优谱带为2.86～3.30μm和4.17～4.55μm两个窄波带。实验结果表明：在所选取的用于谱带探测的窄波带能够很好的消除背景红外辐射的影响，以此突出目标辐射，具有良好的可探测性。A study establishing the infrared radiation contrast in wave band of infrared spectrum detection, based on the great difference of radiation characteristics in the narrow wave band about target and background, was proposed to accurately detect the infrared stealth targets whose infrared radiation characteristics were similar with that of background. The optimum wave band, through analyzing the relative contrast and absolute contrast of target and background and considering the influence of atmospheric conditions in the whole transmission procession, was determined 2.86-3.30 μm and 4.17-4.55μm. The results show that the narrow wave band which was selected by infrared contrast could eliminate radiation of background well, highlighting the target radiation and enhancing the detectability of target.

关 键 词：光谱探测 红外隐身目标 辐射对比度 窄波带 

分 类 号：TN29[电子电信—物理电子学]