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主被动复合激光距离选通探测系统的最大作用距离包括可见光/红外系统的最远探测距离和激光系统最远成像距离,分别对其进行建模分析,建立函数表达式,分析了探测器灵敏度和发射功率、激光发射角及大气能见度对最大作用距离的影响,并搭建了532 nm YAG激光器和860 ns固体激光器两套距离选通实验系统,仿真分析系统最远作用距离分别为11.2 km和5.5 km,采用YAG激光器分别对15.7 km、10.9 km、13 km目标成像,采用固体激光器分别对1.3 km、5.1 km、6 km目标成像,通过对比验证了系统的最远距离,实验结果表明,理论计算的最远作用距离与实际最远作用距离基本相符,最远作用距离函数能够反映系统的实际性能,可以作为系统评价的基本参考,是系统设计的重要参考依据。
The maximum distance of the active-passive laser gating detection system includes the farthest detection distance of the visible / infrared system and the farthest imaging distance of the laser system, respectively, modeling and analyzing the expression, establishing the function expression, analyzing the sensitivity of the detector and Emission power, laser emission angle and atmospheric visibility on the maximal working distance. Two sets of distance gating experiment system of 532 nm YAG laser and 860 ns solid state laser were set up. The farthest distance of simulation system was 11.2 km and 5.5 km respectively The targets of 15.7 km, 10.9 km and 13 km were imaged by YAG laser respectively. The solid laser was used to image the targets of 1.3 km, 5.1 km and 6 km, respectively. The maximum distance of the system was verified by comparison. The experimental results show that the theoretical calculation The farthest acting distance basically agrees with the actual farthest acting distance, and the farthest acting distance function can reflect the actual performance of the system, which can serve as a basic reference for system evaluation and is an important reference for system design.