红外干扰下飞机击中概率计算

研究了多发红外诱饵弹干扰下飞机击中概率计算。主要考虑飞机红外辐射强度沿方位角变化和诱饵弹投放时间因素,将飞机红外辐射强度看作方位角的函数并认为投放时间服从于概率分布,在此基础上建立了末阶段飞机-诱饵-导弹对抗模型,并通过数值方法计算得到飞机击中概率。算例中进一步分析了干扰时对抗过程的细节。

Algorithm of aircraft hit probability in infrared jamming scenario

In an encounter between an aircraft and a missile equipped with an IR seeker,scenario of the terminal phase(endgame) is an important phase in aircraft susceptibility evaluation.Electronic countermeasure(ECM) is a self-protecting measure for the aircraft in this scenario,and infrared bait is always used for jamming the missile with IR seeker,which takes the target as an infrared radiation point.Algorithm of aircraft hit probability in multi-infrared bait jamming scenario is addressed in paper.We assume that the aircraft infrared radiation intensity is a function of azimuth angle,and the launching time of multi-infrared bait obeys probability distribution.Based on such assumption,a dynamic model of aircraft-bait-missile is founded,and finally we get simulation value of hit probability.