激光主动干扰系统作用距离的估算方法

摘要

为了准确计算激光主动干扰系统的有效作用距离,综合考虑干扰过程中影响系统性能的各种因素,建立了作用距离估算模型,总结了作用距离估算的一般方法.以1.06 μm激光辐照远场某型光电探测器为例,分析了激光在大气中的传输效应,讨论了远场探测器表面光斑尺寸的计算方法及大气湍流的影响,数值模拟了作用距离与激光发射功率和大气环境之间的关系.结果表明,该方法可简易估计激光干扰系统的作用距离,为外场测试提供参照范围,为测试评估激光主动干扰系统作用距离提供了有益参考.%In order to calculate the effective operating range of a laser jammer,many factors which can influence the system performance must be considered.The operating range calculating model are built up and the current method for estimating operating range is summarized.Taking 1.06μm laser photoelectrical detector for instance, this paper analyzes laser propagation in atmosphere, discusses the estimating method for sparkle radius and atmosphere turbulence effects.The relationship between operating range and laser power and visible range is simulated.The results proved that this method can estimate the operating range of laser jamming system easily.It can be used to estimate the distance scope for field test,and also can be used to evaluate the performance of a laser jamming system under test.