爆炸产生的烟雾对激光传输影响研究

Research on the smoke produced by explosion impact on laser transmission

本文研究爆炸产生的烟雾对激光传输衰减的影响。根据爆炸烟雾扩散模式,给出透过率计算公式中烟雾浓度的计算方法,通过该方法建立了投弹量与烟雾透过率的关系。仿真结果显示:假设投弹量转化为烟雾剂量的比率为1%、投弹10kgTNT、复折射率为n=1.87+0.22i、入射波为1.06Lm且烟雾厚度为10m时的透过率极大为0.9左右,而投弹量增大一个数量级时烟雾透过率小于0.5。根据仿真结果可知:炮弹爆炸释放烟雾对激光通信影响较大,且衰减变化随着弹量的增加呈指数降低。

this paper studies that the smoke produced by explosion influence on the laser transmission attenuation .According to smoke diffusion model ,Given the calculation method of smoke concentration which is included in transmissivity .this method can establish the relationship between the TouDanLiang and the transmissivity of the smoke .The simulation results show ：when the rate which TouDanLiang change into smoke dose is 1% ,bombing is 10 KGTNT ,complex refractive index is n = 1 .87 ＋ 0 .22i ,incident wave is 1 .06μm and the thickness of smoke is 10 m ,the transmissivity is greater than 0 .9.when the amount of bombs increases one order of magnitude ,the transmissivity of smoke is less than 0 .5.According to the simulation result ,the smoke released by shell is seriously affected laser communication and the change of attenuation is lower along with the increased amount of bombs .