微光夜间驾驶仪探测距离研究

VISUAL RANGE OF LOW LIGHT LEVEL NIGHT VISION GOGGLES FOR DRIVERS

在经典微光系统视距探测方程基础上 ,从大气透过率和光谱匹配等方面进行修正 ,可以建立更加实用和完善的视距探测方程。本文利用修正的微光成像系统视距理论 ,结合车辆驾驶夜视仪 ,对各参数间的关系及视距性能影响进行了分析 ,并对典型环境条件和特定目标背景下的视距进行了理论估算 ,与其综合夜视性能的实验结果相符 ,达到车辆驾驶夜视仪的各项预期指标 ,因此验证了经修正后的视距探测方程的实用性 。

The fundamentals about the visual range of a low light level imaging system were discussed. Based on the common apparent distance detection equation, a more practicable and reliable detection equation was established using factors, such as atmospheric transmissivity, spectral matching factor, etc. According to the revised apparent distance detection equation and combined with the research aim and design principle of night vision goggles, the relationship of parameters having influence on the performance of systems were analyzed. The visual range of the goggle under specific circumstances was estimated, it is shown that the revised apparent distance detection equation is effective and the design of the system is feasible.