基于DRFM的间歇采样预测转发干扰分析

以对相位编码脉冲压缩雷达干扰为背景，分析了相位编码信号的编码特点，介绍了间歇采样直接转发和重复转发干扰的原理与干扰效果，在时域详细推导了相位编码信号的脉冲压缩处理过程。在此基础上提出了一种基于数字射频存储器的间歇采样预测转发干扰方法，在理论上分析了其干扰效果：可使相位编码脉冲压缩雷达产生多个导前、导后的逼真假目标。研究了码元的选择和重组对干扰效果的影响。通过仿真实验对文中分析的结论进行了验证。结果表明，间歇采样预测转发干扰比间歇采样直接转发和重复转发干扰具有更好的干扰效果。

Jamming technique of intermittent sampling predictive repeater based on DRFM

A jamming technique aims at phase coded pulse compression radar. The encoded characteristic of phase coded signal is analyzed. The jamming principle and effectiveness of intermittent sampling direct and periodicrepeater are presented. The derivation of phase coded pulse compression process is described in detail. On the basis of the above mentioned, a new jamming method of intermittent sampling predictive repeater based on digital radio frequency memory (DRFM) is presented. The jamming effectiveness is analyzed theoretically. This method can make the phase coded pulse radar form several precede and lag lifelike false targets. The selection and combination of code on the jamming effectiveness are discussed. The conclusion is approved by simulation. The studied result shows that the proposed jamming has better effectiveness than the intermittent sampling direct and periodic repeater jamming.