调幅式调制盘红外导引头的主动干扰

为了干扰调幅式调制盘系统,根据调幅式调制盘红外导引头的工作原理,采用数值模拟的方式分析了两种主动干扰红外导引头的方法。结果表明,缓变幅度的干扰辐射会使导引头获得的目标方位信息产生偏差,但无法使目标摆脱导引头的跟踪;而重复频率近似等于调制盘系统调制波形载频的光脉冲会干扰导引头接收到的目标信号,使导引头失去目标。干扰辐射强度近似等于目标辐射强度,即可实现干扰。

Active jamming of an infrared seeker with amplitude modulation reticle

For the purpose of jamming the amplitude modulation reticle system,two methods of active jamming of infrared seeker are analyzed by using numerical simulation based on the operation principle of an infrared seeker with amplitude modulation reticle.The results show that the jamming source with a slow variation of amplitude will warp the target's azimuth received by the seeker.But it can not make the target escape from the scout of the seeker.At a repetition rate nearly equal to the carrier frequency of the reticle system,the jamming source will disturb the target's signal received by the seeker,and make the seeker lose the target.If the intensity of the jamming source nearly equals to that of target's radiation,the jamming can be achieved.