北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2012, Vol. 35 ›› Issue (6): 20-24.doi: 10.13190/jbupt.201206.20.yangh

• 论文 • 上一篇    下一篇

基于Walsh码的正交差分混沌键控通信方案

杨 华, 蒋国平   

  1. 1. 南京邮电大学 电子科学与工程学院, 南京 210003;2. 南京邮电大学 自动化学院, 南京 210003
  • 收稿日期:2012-03-18 修回日期:2012-04-20 出版日期:2012-12-28 发布日期:2013-01-07
  • 通讯作者: 杨华 E-mail:yangh@njupt.edu.cn
  • 作者简介:杨华(1980-),女,讲师,E-mail:yangh@njupt.edu.cn 蒋国平(1966-),男,教授,博士生导师
  • 基金资助:

    国家自然科学基金项目(60874091);江苏省自然科学基金项目(BK2010526);江苏省“六大人才高峰”项目(SJ209006);江苏省研究生科研创新计划项目(CXLX11_0412);南京邮电大学“青蓝计划”项目(NY210059)

Orthogonal Differential Chaos Shift Keying Communication Scheme Based on Walsh Code

YANG Hua, JIANG Guo-ping   

  1. 1. College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;2. College of Automation, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • Received:2012-03-18 Revised:2012-04-20 Online:2012-12-28 Published:2013-01-07
  • Contact: Hua Yang E-mail:yangh@njupt.edu.cn

摘要:

提出一种可用于超宽带(UWB)的新型正交差分混沌键控(ODCSK)通信方案,能克服码移差分混沌键控(CS-DCSK)方法存在的问题,具有比特传输速率高、保密性好、可靠性高等优点. 理论分析和仿真结果表明,在一定的扩频因子和信噪比条件下,新系统具有比CS-DCSK更好的解码性能.

关键词: 正交差分混沌键控, Walsh码, 混沌, 误码率

Abstract:

A new chaotic communication scheme named orthogonal differential chaos shift keying (ODCSK) is presented for ultra wide bandwidth (UWB) application. The proposed scheme can overcome the disadvantages existing in code-shifted differential chaos shift keying (CS-DCSK), demonstrating desirable features of higher attainable data transmission rate, shows better communication privacy and higher reliability. Analysis and simulation reveal that ODCSK shows better bit error rate performance in comparison to CS-DCSK with certain signal noise ratio levels and spreading factors.

Key words: orthogonal differential chaos shift keying, Walsh code, chaos, bit error rate

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