对SAR的余弦调相转发干扰

A Repeater Jamming with Cosinusoidal Phase Modulation to SAR

本文提出了一种针对SAR的余弦调相转发干扰。该干扰样式具有相干干扰的能量利用效率高的特点,又具有非相干干扰的压制特性。通过理论分析和仿真,验证了这种新型SAR转发干扰特性。同时通过仿真可知:该干扰方法具有破坏SAR的自聚焦的能力。本文提出的干扰样式实现简便,且干扰方通过不同的干扰参数选择可以实现不同的干扰效果,适合于地面目标的自卫式干扰。

The repeater jamming with Cosinusoidal phase modulation to SAR is presented in this article. It has the advantage that is either efficient energy usage like coherent jamming or good suppression like non-coherent jamming. And this advantage is proved by theoretical analyses and simulations in this paper. It is also shown by simulations that this method has a potential to disturb auto-focus algorithm used by SAR. The jamming method presented in this article can be easily realized, and the jamming effects can be switched according the changes of the jamming parameters. So it is a good choice for ground targets to realize serf-protection jamming.