二次雷达系统干扰识别方法仿真研究

摘要

The interference effects on the S mode signals of IEF system by current interference technology are un-obvious and unstable. Aiming at the issue, the paper proposed a new jamming technology based on pseudo-random code M sequence, pseudo code phase-modulation interference. Except for its high randomness, easy to fulfill, the pesudo code phase modulation interference has an obvious superiority over traditional method by means of its concentrate interference and fraudulence interference on receiver. In this paper, a pseudo code phase modulation interference simulation module was set up and demonstrated that pseudo code phase modulation has a sharp interference on S mode through several times of simulation experiences, thereby proves that it is feasible and veracious.%研究雷达系统干扰问题,现有的干扰技术对IFF系统模式S信号干扰不稳定,且干扰效果不明显.为解决上述问题,提出了一种采用伪随机码M序列的新型干扰方法-伪码调相干扰方法,伪随机码调相干扰不但有随机性高易实现等特点,同时由于其干扰集中并可以对接收机造成欺骗性干扰,干扰性能较传统方法有明显优势.建立了伪随机码调相的干扰仿真模型,通过多次模拟仿真,论证了伪码调相干扰方法对于模式S信号干扰效果明显,并验证了敌我识别模式S的伪码调相干扰方法的有效性和可行性.