基于超混沌的电力线直序扩频序列  

Power Line Direct Sequence Spread Spectrum Sequence Based on Super Chaotic System

作　　者：唐良瑞[1] 张勤[1] 崔维新[1] 孙毅[1] 

机构地区：[1]华北电力大学电气与电子工程学院,北京市昌平区102206

出　　处：《中国电机工程学报》2010年第9期116-122,共7页Proceedings of the CSEE

基　　金：国家自然科学基金项目(60402004)~~

摘　　要：提出一种新的超混沌系统,通过分析该系统的动力学特性,可知该系统的混沌吸引子不同于已发现的混沌吸引子,且该系统具有较高的李亚普诺夫指数,是一种新的超混沌系统。利用该系统产生的混沌序列生成扩频序列,理论分析表明,该扩频序列具有良好的平衡性、相关性及保密性能。将该扩频序列引入电力线直序扩频系统中,仿真结果表明所产生的扩频序列具有良好的抗多用户干扰的性能,且提高了系统的保密性能,适合于电力线直序扩频通信系统中。This paper proposes a novel super-chaotic system. With the analysis of the dynamic of the system, it can be drawn that the chaotic attractor of this system is different from that of any other chaotic system and the Lyapunov index is very high. Based on the system, a new spread spectrum sequence with good balance, correlation and confidentiality is generated. Simulation results demonstrate that this sequence has excellent anti-multiple users interference （MUI） performance and improves the confidentiality of system when applied into the power line direct sequence spread spectrum system, thus, it is very suitable for the power line direct sequence spread spectrum system.

关 键 词：电力线 扩频序列 码分多址 超混沌 抗干扰 

分 类 号：TM73[电气工程—电力系统及自动化]