激光对红外制导导弹干扰仿真与效果评估

Simulation and efficiency evaluation of laser disturbing infrared guidance missile

以红外制导导弹为典型代表的光电精确制导武器在军事上的广泛应用,促进了与之相应的光电干扰技术的迅速发展。如何消弱敌方红外制导导弹的攻击效果,是海军作战中迫切需要解决的问题。激光武器以其独特的性能成为对抗红外制导导弹的理想武器,为准确评估激光干扰红外制导导弹的效果,对某红外制导导弹的巡航段弹道建立了导弹运动学模型、寻的/跟踪器模型、导引处理器模型和碰撞检测模型。以脱靶量为最终输出参量进行干扰评估,同时给出了命中概率的下降情况。仿真结果表明:激光能够有效地干扰该型红外制导导弹,使其脱靶量发生大幅度变化。随着干扰距离的增大,导弹的命中概率也迅速下降。结果证明干扰时机的选取对干扰效果的好坏有着至关重要的作用。

As the typical representative of photoelectric precision guidance weapons, the infrared homing missiles gains more and more applications in the field of military, resulting in the rapid development of related photoelectric interference technology. How to weaken the attacking effect of enemy＇s infrared guidance missile has become an urgent problem in naval wars. In the existing optoelectronic countermeasure technology, the laser weapon with unique performance becomes the most ideal weapon counter to infrared homing missiles. Through analyzing the basic capability of some infrared guidance missile, the mathematical models of its cruise trajectory including the missile＇s kinematics model, seeker/ tractor model, guidance processor model and collision detection model and so on were established to evaluate the efficiency of laser disturbing infrared homing missile. Matlab/Simulink software was used to construct the whole simulation model for the missile＇s guidance system.The miss distance was used to evaluate the disturbance＇s efficiency. At the same time, the declination of the missile＇s hit probability was shown. The simulation results show that the laser can disturb the infrared guidance missile efficiently and it can lead the miss distance to increase greatly. With the disturbing range accretion, the hit probability of missile declines rapidly. The results prove that the choice of disturbing occasion, plays an important role on the disturbing effect.