对脉冲多普勒雷达的多相位分段调制干扰方法

Multiple Phase Sectionalized Modulation Jamming Method for Pulse Doppler Radar

针对部分相参干扰的信号设计问题,提出一种基于多相位分段调制的干扰方法,对其原理进行详细说明,给出了干扰输出的数学推导,得到多矢量叠加的结果。以脉冲多普勒雷达为例,分析脉间多相位分段调制干扰在多普勒域的干扰效果,通过对调制参数的设置可以得到范围可控的局部遮盖效果。最后进行仿真验证,说明应用该干扰技术能够在多普勒域产生遮盖效果,有效破坏雷达对目标速度信息的获取。

For signalg design problem in partial coherent jamming, a new method based on multiple phase sectionalized modulation（MPSM） is proposed. The principle of MPSM is elaborated firstly, and the inter-pulse jamming signal generation is derived in details, where the multi-vector＇ s superposition is obtained. Taking a typical coherent radar-PD radar as an example, the jamming effect after MPSM is ana- lyzed in Doppler region, and the partial overspread effects are controlled by adjusting modulation parame- ters. Finally, the simulation is conducted to prove the related analysis above, and it is obvious that this jamming technique can produce plenty of false targets for partial confusion and will jam the speed infor- mation acquisition of real targets.