为了实现更灵活可控的雷达干扰,弥补单一间歇采样转发干扰产生的假目标数目较少且分布较为规律的不足,提出了一种基于多波形调制的间歇采样转发干扰方法。该方法首先对发射信号间歇采样,然后卷积调制不同的波形信号,最后放大转发出去;对传统干扰机进行改进,增加了调制信号生成模块,设计出多波形干扰系统架构;选用基础波形正弦波、三角波、方波作为调制信号,通过改变调制信号的种类和波形参数,能产生灵活可控的密集分布假目标,同时削弱了干扰的规律性,得到不同的干扰效果。在理论分析的基础上仿真验证了该干扰方法的可行性、有效性。

In order to achieve more flexible and controllable radar jamming, and make up for the shortage of the limited false targets and regularity of single intermittent sampling repeater jamming, a method of intermittent sampling repeater jamming based on multi-waveform modulation is proposed. First, the signal is sampled intermittently, then convolved with different waveforms, and then the signal is amplified and transmitted. In the meantime, the multi-waveform jammer structure is designed with adding modulation signal generation module to the traditional jammer. Selecting sine wave, triangle wave and square wave as the modulating signals, by altering the kind and waveform parameters of the modulating signals, dense distributed false targets can be generated flexibly and controllably, which achieves different jamming effects and weakens the regularity of intermittent sampling repeater jamming. On the basis of theoretical analysis, the simulation experiments were carried out to verify the feasibility and effectiveness of the jamming method.

TN971