摘要
为了克服微光(LLL)夜视系统易受外界环境影响的缺点,在微光夜视系统中加入激光助视系统可以改善系统性能。由于加入激光助视系统后光源类型发生变化,视距公式、光谱匹配系数等都随之变化。根据夜间景物反射特性和激光辐射光谱特性,给出了夜间一些景物在激光助视下的反射光谱,计算了微光夜视仪光电阴极光谱响应和景物反射光谱之间的匹配系数,并分析了其对照度、对比度等参数的影响。
To overcome the shortage that the low light level（LLL） night vision system is easily affected by the environment,laser-aid illuminating system is integrated into the night vision system.Since the light source has been changed,the visual range formula and the spectrum matching coefficient must be updated with it.According to the spectrum distribution of the laser illuminator and the reflection parameter of the surroundings at night,the spectrum matching coefficient of the photocathode under the night is deducted.Also the affection to the intensity of the illuminator and the contrast are analyzed.All the analysis can instruct the visual range evaluation and the choice of laser-aid illuminating system laser.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2010年第1期312-315,共4页
Chinese Journal of Lasers
关键词
激光
微光夜视仪
视距
光谱响应
光谱匹配
laser
low ligtht level night vision system
visual range
spectrum response
spectrum matching
