基于四维超混沌系统的光通信数据加密研究  

Research on data encryption of optical communication based on four-dimensional hyperchaos

作　　者：袁炳夏[1] 王震 YUAN Bingxia;WANG Zhen(Huizhou University,Huizhou Guangdong 516007,china)

机构地区：[1]惠州学院,广东惠州516007

出　　处：《激光杂志》2023年第11期126-130,共5页Laser Journal

基　　金：广东省重点领域研发计划(No.2018B010109007)。

摘　　要：针对当前光通信数据存在的安全问题,为了提高光通信数据加密效果,设计了基于四维超混沌系统的光通信数据加密方法。首先采集光通信信号,通过量化处理,得到光通信数字信号;然后对光通信信号实施非线性预补偿、盲均衡操作;最后采用增广Lü系统设计耗散四维超混沌系统,转化系统状态值;采用四维超混沌系统对光通信信号实施数据进行加密处理。测试结果表明,设计方法在对一个混沌伪随机序列值与整型数做出微小改变后,无法解密出原始光通信信号数据,密匙敏感性强,且最大加密混沌同步误差仅为0.053,说明该方法加密效果较好。In order to improve the encryption effect of optical communication data,an optical communication data encryption method based on four-dimensional hyperchaos system is designed.First,the optical communication signal is collected,and then the optical communication digital signal is obtained through quantization processing.Then,the optical communication signal is subject to nonlinear pre compensation and blind equalization operations.Finally,the augmented Lüsystem is used to design a dissipative four-dimensional hyperchaotic system,transform the system state value.The four-dimensional hyperchaotic system is used to encrypt the optical communication signal data.The test re-sults show that the design method can not decrypt the original optical communication signal data after making small changes to the value and integer number of a chaotic pseudo-random sequence,the key sensitivity is strong,and the maximum encryption chaos synchronization error is only 0.053,indicating that the encryption effect of the method is good.

关 键 词：四维超混沌系统 采样开关 光通信数据加密 权重滤波器 

分 类 号：TN929[电子电信—通信与信息系统]