抗DRFM欺骗干扰的多路频率捷变LFMCW信号设计  

Multi-channel Frequency Agile LFMCW Signal Design Against DRFM Spoofing Interference

作　　者：马月红 曹佳琦 韩壮志 刘新悦 MA Yuehong;CAO Jiaqi;HAN Zhuangzhi;LIU Xinyue(School of Electrical and Electronic Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050000,China;Department of Electronic and Optical Engineering,Shijiazhuang Campus,Army Engineering University,Shijiazhuang 050000,China)

机构地区：[1]石家庄铁道大学电气与电子工程学院,石家庄050000 [2]陆军工程大学石家庄校区电子与光学工程系,石家庄050000

出　　处：《电光与控制》2024年第8期104-110,共7页Electronics Optics & Control

基　　金：河北省研发计划项目。

摘　　要：在电子对抗领域中,数字射频存储(DRFM)干扰机能快速存储和再现射频信号,并对先进体制雷达进行有效干扰。首先对DRFM干扰机原理进行了分析,然后通过对传统Chebyshev混沌映射进行改进,设计了一种新型混沌系统,接着运用新型混沌系统对线性调频连续波(LFMCW)信号进行脉间调制,设计了一种抗DRFM欺骗干扰信号,最后对改进的混沌映射系统的随机性、复杂性和所设计信号的抗干扰性能进行了仿真分析验证。仿真结果表明,改进的混沌映射系统具有强随机性以及高复杂度,并且设计的信号具有较好的抗干扰性能,抗DRFM欺骗干扰效果良好。In the field of electronic countermeasures,Digital Radio Frequency Memory(DRFM)can quickly store and reproduce radio frequency signals,and effectively interfere with advanced radar systems.In order to improve the survivability of radar,an anti-DRFM spoofing signal is designed.Firstly,the principle of DRFM jammer is analyzed,and a new chaotic system is designed by improving the traditional Chebyshev chaotic mapping.Then,the Linear Frequency Modulated Continuous Wave(LFMCW)is modulated between pulses by using a new chaotic system,and an anti-DRFM spoofing signal is designed.Finally,the randomness and complexity of the improved chaotic mapping and the anti-interference performance of the designed signal are verified by simulation analysis.The simulation results show that the improved chaotic mapping has strong randomness and high complexity,and the designed signal has good anti-interference performance and anti-DRFM spoofing effect.

关 键 词：信号设计 DRFM 抗干扰 混沌映射 

分 类 号：TN973[电子电信—信号与信息处理]