微光夜视成像系统最大作用距离估算与试验验证

Estimation and Testing Verification of the Maximum Operation Range for Low Light Level Night Vision Device

微光夜视成像系统是一种常见的光电设备,其最大作用距离直接反映系统的综合性能,为系统设计考核的重要技术指标,它决定着设备对特征目标的发现、识别和辨认距离。论文在充分考虑系统设计参数对作用距离影响的基础上,结合基于光量子噪声和系统传递函数计算分辨力的方法,建立了较为全面的系统分辨力计算方程。结合某型微光夜成像系统的设计参数进行了最大作用距离估算,同时采用实装试验的方法对估算结果进行了对比,验证了估算方法的有效性,能为相同类型设备的技术指标考核提供技术支持。

Low light level night vision device is an important optoelectronic equipment,its maximum operation range directly reflects the combination property of the system and is an important technical performance parameter,which can be used to decide the discover recognition and identification distance.Based on the typical resolution calculation method of optical quantum noise and system transfer function,and the design parameter is also considered,a more practicable and reliable resolution calculation equa⁃tion is established.The maximum operation range for special low light level night vision device has been estimated according to the established calculative method,and the effectiveness of the estimation model is verified by using of testing which proves the result is effective and feasible.The research result in this paper can provide technical support to test and calculate the operation range for the similar low light level night vision device.