摘要
提出了一种基于振荡器耦合实现超混沌保密通信的新方案。在两个RC振荡器耦合产生超混沌信号基础上,构建一个包括信息在内的非线性耦合环路,实现对信息的加密与解密。对其混沌动力学行为进行了分析,包括分岔和最大Lyapunov指数。利用数字化处理技术,对连续时间系统作离散化处理和变量比例扩张变换,最后给出了用数字信号处理器来实现该方案的设计原理与硬件实现结果。
A novel scheme for hyperchaotic secure communication based on ring coupled RC oscillators is proposed. The presented scheme uses RC oscillator-based hyperchaotic signal generators and nonlinear ring couplers, from which information encryption and decryption can be realized. Basic dynamics behaviors are investigated, including bifurcation diagram and maximum Lyapunov exponents. Furthermore, by appropriate discrete processing and variable proportion transformation of continuous time systems, this approach is designed and implemented by digital signal processor （DSP） and its hardware experimental results are also given.
出处
《量子电子学报》
CAS
CSCD
北大核心
2009年第4期456-464,共9页
Chinese Journal of Quantum Electronics
基金
国家自然科学基金(60572073
60871025)
广东省自然科学基金(8151009001000060
5001818
8351009001000002)资助课题
关键词
混沌
保密通信
数字信号处理器实现
RC振荡器
非线性环形耦合
chaos
secure communication
digital signal processor-based realization
RC oscillators
nonlinear ring coupler
