文献类型：期刊文献

中文题名：基于广义观测器实现混沌系统的同步及信息传输

英文题名：Realizing the synchronization of chaotic system and information transmission based on generalized observer

作者：祁荣宾[1];李秋明[2];罗秋滨[2];冯汝鹏[2]

机构：[1]华东理工大学信息科学与工程学院,上海200237;[2]哈尔滨工业大学,黑龙江哈尔滨150001

年份：2005

卷号：10

期号：6

起止页码：29

中文期刊名：电路与系统学报

外文期刊名：Journal of Circuits and Systems

收录：北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：广义观测器;混沌;同步;保密通信

外文关键词：generalized observer; chaos; synchronization; secure communication

摘要：将保密通信问题看成是信息信号同步问题,从全新的角度提出了一种基于广义观测器的保密通信系统。首先在不改变混沌发送系统的混沌特性的前提下,将信息信号注入到混沌发送系统中,并将其看作系统的状态量;然后在接收端设计广义观测器;最后根据发送端传来的隐藏有信息信号的混沌输出信号同步出混沌系统的状态和信息信号。此方法不需要单独设计加密解密算法,而是将收发端混沌系统的同步与信息传输用同步方法一次实现。对R&o&ssler系统的仿真证明了该方法的有效性。
A chaotic secure communication system based on generalized observer is proposed from a brand-new point of which, the problem of secure communication is regarded as that of synchronizing information signals. Firstly, the information signals are injected into the chaotic transmitter and regarded as state variables without changing the chaotic characteristic of chaotic transmitter; secondly, the generalized observer is designed at the receiving end; lastly, chaotic state variables and information signals are synchronized by means of chaotic output signals including information signals. It is unnecessary to design encryption arithmetic and decryption arithmetic solely： synchronization and information transmission between chaotic transmitter and receiver based on synchronizing method are realized simultaneously. The simulation result for Rossler system shows the validity of this method.