时滞SMIB混沌系统的同步及其在通信干扰对消中的应用  

Chaos synchronization of time-delay SMIB systems and its application in communication interference cancellation

作　　者：林茜[1] 陈云[2] 周成[1] 李兵 LIN Qian;CHEN Yun;ZHOU Cheng;LI Bing(College of Electronic Engineering,Naval Univ.of Engineering,Wuhan 430033,China;Dept.of Information Security,Naval Univ.of Engineering,Wuhan 430033,China;Unit No.91428,Ningbo 315000,China)

机构地区：[1]海军工程大学电子工程学院,武汉430033 [2]海军工程大学信息安全系,武汉430033 [3]91428部队,浙江宁波315000

出　　处：《海军工程大学学报》2024年第2期73-78,共6页Journal of Naval University of Engineering

基　　金：国家部委基金资助项目(2019-JCJQ-JJ-038)。

摘　　要：在实施通信干扰时,为了消除干扰信号对己方通信的影响,研究了干扰信号对消问题。考虑到混沌的类随机性使得混沌信号可以代替高斯噪声作为通信干扰源达到较好的干扰效果,以时滞SMIB混沌系统为干扰源,证明了存在外干扰时,参数失配的两个时滞SMIB混沌系统在线性状态误差反馈控制下达到有误差界的同步的判据,给出了误差界的估计,并进行了仿真验证。结果表明:利用该研究结论,可以在通信接收端对混沌干扰信号进行对消,基本消除混沌干扰对自身的影响。In order to eliminate the impact of interference signals on our own communication during the implementation of communication jamming,the problem of interference signal cancellation was studied.Considering the quasi randomness of chaos which make it possible for chaotic signals to replace Gaussian noise as communication interference sources and achieve better interference effects,time-delay SMIB chaotic system was taken as the interference source.Some criteria for achieving glo-bal robust synchronization of two SMIB systems with parameter mismatch and external disturbance via linear state error feedback control were derived,the synchronization error bound was also estimated,and the effectiveness was illustrated by the numerical examples.By utilizing this conclusion,it is possible to cancel chaotic interference signals at the communication receiving end,and effectively eliminate the impact of chaotic interference on oneself.

关 键 词：混沌同步 通信干扰对消 时滞系统 

分 类 号：TN975[电子电信—信号与信息处理]