用普通录像机和专用接口电路,组成雷达信号记录设备,对箔条干扰的雷达回波视频信号以及雷达接收机中如自动增益控制电压等低频信号进行了成功的记录,并将这些录取的信号送微型计算机进行分析处理.处理结果表明,箔条回波在时域宽度、周期性、幅度概率分布、频谱形状等多种特征上与目标回波信号、噪声干扰信号、同频异步调制干扰信号等有明显的区别,从而可以实现箔条干扰存在与否的在线实时判定。 With ordinary video recorders and dedicated interface circuit, a radar signal recording device, the chaff jamming radar echo video signals and radar receivers such as automatic gain control voltage and other low-frequency signals were successfully recorded, and these recorded signals sent Microcomputer.The results show that the chaff echo is related to the target echo signal, noise interference signal, intra-frequency asynchronous modulation interference signal and so on in various characteristics such as time domain width, periodicity, amplitude probability distribution, spectrum shape and so on There is a clear distinction, which can achieve the presence or absence of Chaff interference online real-time determination.