威胁源参数对激光散射截获半径的影响

摘要

As the laser technology is developing in military applications, it becomes important to detect and warn the laser threat signal. The distribution of the scattering irradiance of 1.06 μm laser signal in atmosphere is calculated by using Mie scattering theory. Taking the laser range finder signal as an example, the influence of the laser threat source's parameters (such as pulse energy,pulse width, threat source distance, etc) on laser scatter intercept radius is discussed. The result shows that the changes of source parameters have evident impact on laser scatter intercept radius. It is necessary to take them into account in test and use of laser waning equipments.%在利用Mie散射理论对1.06μm脉冲激光在低空大气中传输时散射辐照度的分布进行了分析计算的基础上,以激光测距信号为例,讨论了激光威胁源参数(脉冲能量、脉冲宽度、威胁源距离等)变化对激光告警散射截获半径的影响,结果表明:威胁源参数变化会对激光散射截获半径产生明显影响.因此,在考核和使用激光告警设备时,必须考虑威胁源参数变化因素的影响.