高能激光损伤低空目标的时间估算分析  

Time Estimate Analysis on High Energy Laser Damage Low-altitude Target

作　　者：李大为[1] 蒙文[1] 李云霞[1] 韩晓飞[1] 魏新[1] 

机构地区：[1]空军工程大学电讯工程学院,西安710077

出　　处：《科学技术与工程》2012年第23期5761-5764,5770,共5页Science Technology and Engineering

摘　　要：为研究高能激光损伤低空目标的损伤效果,对损伤时间做出估算,建立了高能激光大气传输模型。考虑了大气分子衰减、大气气溶胶衰减以及激光斜程传输对激光的衰减作用。考虑了金属材料对激光的吸收作用。建立了激光辐照铝材料损伤的时间计算模型并进行了数值计算分析。数值计算结果表明,高能激光系统对空中目标的损伤在能见度低于15 km时,其达到预期损伤效果所需作用时间势必大大增加。激光器功率较大时,功率的增大对损伤时间的影响越来越小。在天顶角大于1 rad时,随着天顶角的增大,所需时间也大幅增加。结果对高能激光防御技术的研究有重要的指导意义。In order to study the damage affection of high energy laser irradiating low altitude target and to estimate the time, a model of high energy laser atmospheric transmission is build. It considered atmosphere reduction, aerosol reduction and slant transmission reduction, considered laser absorb with metal, build and analyzed a calculate model of laser irradiating aluminum material damage time. The result shows that, the time achieving damage affection will be added obviously when the visibility is under 15 km. Power adding has a little influence on damage time when the laser power is very high; the angle is more big, the damage time will become much when the angle is bigger than 1 rad. The result has certain significance on high energy defense technology study

关 键 词：高能激光 大气传输 低空目标 损伤时间 

分 类 号：TN249[电子电信—物理电子学]