激光助视/微光夜视仪光谱匹配技术研究

A Study on the Spectral Matching Technology of the LLL Night Vision System with Laser Illuminator

根据夜间景物的反射特性以及激光辐射光谱特性,求出了在激光助视下,夜间暗绿色涂层、粗糙混凝土和绿色草木的反射光谱,计算了所研制的头盔式激光助视/微光夜视仪光电阴极光谱响应与景物反射光谱之间的匹配系数,分析了其对照度、对比度等参数的影响,对野外条件下的夜视仪的视距估算和性能仿真可起到指导作用。

According to the spectral distribution of the laser illuminator and reflectance of the scene, the spectral distributions of reflection of dark green paint, rough concrete and green vegetation under the laser radiation were deduced. The spectral matching factors between photocathode spectral response and scene reflecting spectrum were calculated for the LLL night vision system with laser illuminator. The effect of the spectral matching.factor on intensity of illumination and contrast was analyzed. The spectral matching factor can instruct visual range evaluation and performance simulation for night vision system under field circumstances.