InP/InGaAs探测器对伪装目标成像研究  

Camouflage Recognition Study by InP/InGaAs Short Wavelength Infrared Detectors

作　　者：向梦 邵文斌 史衍丽 

机构地区：[1]云南大学物理与天文学院,云南昆明650091 [2]云南省量子信息重点实验室,云南昆明650091

出　　处：《红外技术》2017年第10期873-879,共7页Infrared Technology

基　　金：云南省科技厅基础研究重点基金项目(2015FA040)

摘　　要：高性能InP/InGaAs宽光谱探测器将前截止波长延伸到0.9mm之前,实现可见/短波双波段探测,大大丰富了探测目标的信息量,提高对目标的识别率。本文采用InP/InGaAs宽光谱探测器相机,通过设置一系列伪装实验,对比不同伪装目标的可见光波图像与短波红外图像的差异,重点探究短波红外对伪装目标的识别特性。通过实验结果发现:短波红外对一定厚度塑料、硅胶、皮肤具有穿透性;颜料、染料等同色不同材质的物体对短波红外具有选择性吸收,基于以上特性,短波红外体现了较好的伪装识别效果。在成像对比实验的基础上,进一步选择伪装效果对可见光和短波红外具有明显差异的实验样品,分别测量了它们对短波红外和可见光的反射率等参数,以深入地分析和理解短波红外识别伪装的机理。The wide spectrum of InGaAs detectors can extend the response wavelength from the short wavelength to visible light through special material design and processing. Given the visible/SWIR dual band detection, wide spectnLm InGaAs detectors greatly enriched the amount of information about the target and improved the target recognition rate. A wide variety of camouflage recognition imaging experiments were performed with an InGaAs camera and a visible/short wavelength optical filter. The images in both short wavelength and visible light bands were then analyzed. It can be summarized from these experiments that the short wavelength can penetrate a certain thickness of plastic, silica gel, and skin. Absorption selectivity was determined for some objects with same color but made from different materials like pigment and dye in the short wavelength range. In addition, targets were chosen to measure the reflectivity and transmittance. The targets exhibited a camouflage effect in the visible light band and no camouflage in the short wavelength range. These measurement results help to understand the camouflage recognition characteristics of InGaAs short wavelength infrared detectors.

关 键 词：短波红外 可见光 InP/InGaAs探测器 伪装 

分 类 号：TN215[电子电信—物理电子学] TN216