忆阻超混沌映射的可调控性设计及光纤保密通信系统构建
Controllability design of a memristive hyperchaotic map and the construction of optical fiber secure communication system
李春彪 1李泳新 1仲庆 2杨勇 3AKGUL Akif4
作者信息
- 1. 南京信息工程大学人工智能学院,江苏 南京 210044;江苏省大气环境与设备技术协同创新中心,江苏 南京 210044
- 2. 东南大学信息科学与工程学院,江苏 南京 210096
- 3. 南京沁恒微电子有限公司RISC-V研究所,江苏 南京 210008
- 4. 赫梯大学工程学院,乔鲁姆 19030
- 折叠
摘要
通过引入平方忆阻函数非线性反馈,构建离散超混沌映射,并实现超混沌序列的全局调幅、局部调幅以及直接偏置调控.混沌映射的可调控性通过离散忆阻的阻值函数和内部变量积分速度来实现.简易的忆阻约束关系同时赋予了直接偏置调控的可能性,通过额外引入常数项参数可实现一维状态变量的直接偏置调控.基于RISC-V单片机CH32V307实现了所提出的可调控超混沌映射,并通过美国国家标准与技术研究院测试证明了超混沌序列的伪随机属性.基于以上超混沌映射构建了正交啁啾复用-非正交多址接入物理层加密方案,实验完成了2 km弱耦合七芯光纤通信的误码率测试,进一步证明了基于离散忆阻构建的超混沌加密正交啁啾复用-非正交多址接入系统可实现数据的可靠传输和解密,有效保护数据安全.
Abstract
A discrete hyperchaotic map was constructed by introducing nonlinear feedback of the square memristor func-tion,which has the properties of total amplitude control,partial amplitude control,and direct offset boosting of hypercha-otic sequences.The controllability of chaotic map was achieved through the resistance function of a discrete memristor and the integral velocity of the internal variable.The simple constraint relationship from the memristor also gives the pos-sibility of direct offset boosting.By introducing an additional constant parameter,direct offset boosting of a one-dimensional state variable can be obtained.Based on the RISC-V microcontroller of CH32V307,the proposed control-lable hyperchaotic map was realized,and National Institute of Standards and Technology(NIST)testing proves the pseudo-random feature of hyperchaotic sequences.Based on the above hyperchaotic map,a physical layer scheme of or-thogonal chirp division multiplexing-non-orthogonal multiple access(OCDM-NOMA)with encryption was constructed.The test of error rate in the process of 2 km communication with coupled seven core optical fiber was completed,further proving that the data transmission and decryption is reliable in the OCDM-NOMA system with hyperchaotic encryption,where data security is effectively protected.
关键词
离散忆阻/超混沌映射/调幅/偏置调控/光纤保密通信Key words
discrete memristor/hyperchaotic map/amplitude control/offset boosting/optical fiber secure communication引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据