文档介绍:时分复用技术在混沌保密通信系统中的应用研究
摘要
混沌是一种貌似随机的非随机运动,它是非线性确定系统中由于内禀随机性而产生的外在复杂表现。其最明显的特征就是对初始条件的极端敏感性,初始条件的微小差异可能对以后的时间演化产生巨大的影响,所以混沌系统的长期演化行为是不可预测的,但是若对混沌系统加以控制,是可以应用的。利用混沌系统进行保密通信的研究已成为当前国际电子学前沿研究的一个热点。目前已经有多种保密通信方案,本文主要作以下方面的研究:
(a)系统论述了混沌保密通信的发展状况与研究意义,以及混沌保密通信原理。
(b)列举了与混沌相关的基础知识,包括混沌的定义、混沌的特性、混沌保密通信的理论依据和方法等一系列问题。
(c)介绍了蔡氏混沌电路的构造,并对蔡氏电路的动力学行为进行了仿真研究。混沌保密通信中,混沌同步是一项关键技术。本文针对驱动—响应式Chua电路混沌同步系统,提出混沌同步系统的自保持特性,并根据时分复用技术的原理解决了目前在混沌保密通信中,如何在同一信道中同时高效传输明文信息和混沌同步控制信号,为混沌同步在工程、通信领域的实际应用奠定了基础。
关键词:保密通信,Chua电路,混沌同步,时分复用
Research on TDM Technology in the Chaotic munication System
ABSTRACT
Chaos is a seemingly random non-random movement, it is non-linear system to determine the intrinsic randomness of the resulting performance of the plexity. The most obvious feature is the extreme sensitivity to initial conditions, small differences in initial conditions the time evolution of the future may have a huge impact, so the long-term evolution of chaotic system behavior is unpredictable, but if the chaotic system to control can be applied. Chaotic munication systems have e the forefront of the international electronics research hot spot. Currently has a variety of munication scheme, this paper made the following aspects: 
(a) Systematically discussed the development of chaotic munication and research significance, and the principle of chaotic munication. 
(b) Also cited the chaos associated with the basics, including the definition of chaos, chaos characteristics, the theoretical basis of chaotic munication and methods and other issues. 
(c) Describes the construction of Chua's chaotic circuit, and the dynamic behavior of Chua's circuit is simulated. Chaotic munication, chaos synchronization is a key technology. This paper drive - response type synchronization systems Chaotic Chua proposed chaos synchronization self-maintenance characteristic system, and in accordance with the principle of time division multiplexing technology to solve the current chaotic munication, how to