利用相空间轨迹产生混沌脉冲序列的方法研究  

A Chaotic Pulse Sequence Generating Method Based on Phase Space Trajectory

作　　者：王有维[1,2] 石要武[1] 王丽萍[2] 张大鹏[2] 张晓君[2] 

机构地区：[1]吉林大学通信工程学院,吉林长春130025 [2]吉林大学农学部,吉林长春130062

出　　处：《信息与控制》2008年第6期686-689,共4页Information and Control

摘　　要：在混沌理论的基础上,提出了利用具有伪随机性的混沌相轨迹产生混沌脉冲序列的方法.利用连续混沌系统生成了混沌脉冲序列,解决了利用一般离散混沌系统所产生的混沌序列模型简单、周期短、数字退化、易跟踪等问题.该方法产生的混沌序列应用于保密通信中,可以提升混沌密钥的伪随机性,实现无限长周期.仿真结果证明了本文提出方法的可行性.Based on chaos theory, a chaotic pulse sequence generating method using chaotic phase trajectory with pseudo randomicity is proposed. Chaotic pulse sequence is generated with continuous chaotic system, and such problems as simple model, short period, digital degradation and easy tracking in chaotic sequence models produced by ordinary discrete chaotic systems are solved. The chaotic sequence generated with the presented method can be used in secure communication to en- hance pseudo randomicity of the chaotic encryption key and attain infinite period. The simulation result proves the feasibility of the proposed method.

关 键 词：混沌 脉冲 保密 相空间 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]