末制导雷达抗噪声调频干扰技术的研究

Time Analysis and Simulation of FM Jamming Signal in Noise Jamming

文中在分析了噪声调频干扰的特性及产生过程的基础上,分别建立了噪声调频干扰在末制导雷达接收机输入端和中放输出端的时间序列模型,并对抗噪声调频干扰技术进行了深入研究。提出了利用跟踪噪声干扰源实现雷达角度跟踪系统的抗干扰;利用宽-限-窄电路来实现雷达距离跟踪系统的抗干扰,并且重点研究了宽-限-窄电路的抗干扰原理,通过对加在该电路后的噪声波形的研究,得到的抗干扰改善因子可以评估该电路的抗干扰性能。理论分析和数据仿真表明,宽-限-窄电路可以有效的对抗噪声调频干扰。

In this paper,the character and producing course of noise frequency modulation(FM)jamming are discussed. and the noise FM jamming time series models of terminal guidance radar receiver import and IL export are given.Home on jamming counter the jamming of angle tracking system and Dieke fix counter the jamming of range tracking system are given.The counter measure of Dicke fix is researched in important.Through simulating the wave of Dicke fix adding noise,the anti-jamming ability by the given improve gene is evaluated.Theoretical analysis and simulated re- suits prove that Dicke fix can resist the noise FM jamming effectively.