激光干扰光电成像导引头的建模与仿真

Modeling and simulation of laser jamming for electro-optical imaging guided seeker

在建立形心跟踪式光电成像导引头模型的基础上,根据激光干扰光电成像导引头输出图像的特点,建立了亮斑干扰模型、亮斑加亮带干扰模型、全饱和干扰模型和致盲干扰模型。理论分析认为亮斑加亮带的干扰效果与亮斑干扰类似,致盲干扰的效果与全饱和干扰类似。利用研制的光电成像末制导干扰仿真软件,系统研究了典型应用下,激光干扰对形心跟踪式光电成像末制导导弹的制导电压、制导误差角、弹道和弹着点的影响。仿真结果与理论分析是一致的。

Based on the model of electro-optical imaging guided seeker by using the gate centroid tracking method,four models of laser jamming including bright-spot jamming,bright-spot with bright-strip jamming,whole saturation jamming,and blinding jamming were established according to the characteristic of the output image of the electro-optical imaging guided seeker jammed by laser.Theoretical analyses indicated that the effect of the bright spot jamming was equivalent to the bright spot with bright strip jamming,and the effect of whole saturation jamming was equivalent to the blind jamming.The influences of laser jamming on the parameters of electro-optical imaging guided missile including the guidance voltage,guidance error angle,ballistic trajectory and the impact point were studied systemically by using the laser jamming simulation software of the electro-optical imaging guided missile.The simulating results are consistent with the theory analysis.