基于梳状谱调制和间歇采样重复转发的复合干扰

针对常规间歇采样转发干扰(interrupted sampling repetitive repeater jamming, ISRRJ)存在假目标群幅度递减过快、假目标干扰能量不集中的问题, 提出基于梳状谱调制干扰(comb spectrum modulation jamming, CMSJ)和ISRRJ的复合干扰方法。首先, 分析CSMJ和ISRRJ的特性; 然后, 探讨复合干扰形成密集假目标干扰的条件, 并给出参数控制字的选择方法; 最后, 仿真分析不同参数条件下的干扰效果。理论分析和仿真结果表明, 所提方法参数控制简单, 能够形成幅度均匀分布的密集假目标群。

Composite jamming based on comb spectrum modulation andinterrupted sampling repetitive repeater

The amplitude of false targets caused by interrupted sampling repetitive repeater jamming (ISRRJ) fades increasingly and the energy of false targets is dispersive. A composite jamming method based on comb spectrum modulation jamming (CSMJ) and ISRRJ is proposed. Firstly, the properties of CSMJ and ISRRJ are analyzed. Secondly, the characteristic of concentrated false targets caused by composite jamming is presented, and how to select parameters is deduced. Finally, the jamming effect of the new method is simulated. The theoretical analysis and simulation results demonstrate that the proposed method with brief parameters is feasible to cause concentrated false targets with uniform amplitude.