舰船电子对抗

间歇采样转发干扰可以对脉冲压缩雷达形成多个假目标干扰,具有压制和欺骗的效果,但产生的假目标具有很强的规律性且分布在真实目标附近,容易被识别并进行针对性地对抗,不利于隐身飞行。针对这一问题,分析了线性调频信号单个采样信号的脉压结果,采用间歇非均匀采样转发的方式,使脉压后的干扰能量更多地集中在真实目标周围,在整个时域范围内更加均匀,以实现压制真实目标回波进行隐身飞行的目的,并采用粒子群优化算法实现了每个采样时长、转发次数的优化求解。

Multi-false-target jamming signals to pulse compression radar can be formed through intermittent sampling repeating jamming,which has the effect of suppression and deception,but the generated false targets have strong regularity and are distributed near the true targets,are easily identified and confronted pertinently,which is not conducive to stealth flight.Aiming at the problem,this paper analyzes the pulse compression result of a single sampling signal for linear frequency matulation signals,uses the method of intermittent non-uniform sampling repeating to make the jamming power after pulse compression being concentrated more around the real target,and the distribution is more even in the whole time domain,so the purpose of suppressing real target echo for stealth flight is realized.The particle swarm optimization algorithm is used to realize the optimization solution of each sampling time length and repeating times.