单脉冲雷达导引头抗压制式干扰时域仿真

Time Simulations on Anti-Jamming Capability of Mono-Pulse Radar Seeker

为研究单脉冲主动雷达导引头在自卫干扰(SSJ)和非SSJ条件下的抗干扰性能,建立了单脉冲角跟踪系统对SSJ和非SSJ压制式噪声干扰源进行跟踪的时域模型。仿真结果表明,在SSJ条件下,角跟踪回路的抗压制式噪声干扰性能较佳,跟踪情况与目标视线角速度有关;在非SSJ条件下,当导引头接收天线处远距支援干扰(SOJ)强于目标回波信号时,SOJ会引入较大的天线指向偏差。所建模型可用于雷达导引头抗干扰性能的仿真研究。

To research the performance of mono-pulse active radar seeker under self-screening jamming （SSJ） and non-SSJ, the time domain models of mono-pulse angle tracking system which traced pressed noise jamming source under SSJ and non-SSJ were put forward in this paper, The simulation results showed that the performance of the angle tracking loop was quite good under SSJ, and the tracking related to the angle rate of sight for target; a large antenna directional bias would be introduced by support jamming at the antenna which intensity was bigger than target echo signal under non- SSJ. The models in this paper would be used in the anti-jamming performance research for radar seeker.