非相干干扰下导弹的命中误差

Missile Hit Error under Noncoherent Jamming

非相干干扰对单脉冲雷达导引头具有很强的干扰效果。介绍非相干干扰的实施方法及分类,建立了单脉冲雷达导引头对同一波束内两目标的测角特性模型,分析了干扰条件下导弹命中误差形成原理。通过计算机仿真研究了雷达分辨目标的原理,给出了闪烁干扰和非闪烁干扰下导弹命中误差的计算方法。计算机仿真结果表明,对于非闪烁干扰,当能量比近似为1时,初始误差等于目标距离的50%;当能量比较大时,初始误差等于0;对于闪烁干扰,初始误差等于0。

The noncoherent jamming has a strong jamming ability to monopulse seekers.The implementation and classification of noncoherent jamming are presented.The model of monopulse radar seeker for angle measurement of two targets within the same beam was established.The forming principle of missile hit error is analyzed.Through simulation,the principle that a radar recognizes a target is studied,and the computing methods of missile hit error under blanking jamming and non-blanking jamming are given.The simulation result indicates that for non-blanking jamming the original error is half of the distance between two targets as the energy ratio is approximate to 1,and the error is equal to 0 as the energy ratio is larger than 1,and that for blanking jamming the error is equal to 0.