| 基于Walsh码的正交差分混沌键控通信方案 |
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| 引用本文： | 杨华,蒋国平.基于Walsh码的正交差分混沌键控通信方案[J].北京邮电大学学报,2012,35(6):20-24. |
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| 作者姓名： | 杨华 蒋国平 |
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| 作者单位： | 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 |
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| 基金项目： | 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) |
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| 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.
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| 关 键 词： | 正交差分混沌键控 Walsh码 混沌 误码率 |
| 收稿时间： | 2012-03-18 |
Orthogonal Differential Chaos Shift Keying Communication Scheme Based on Walsh Code |
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| YANG Hua,JIANG Guo-ping.Orthogonal Differential Chaos Shift Keying Communication Scheme Based on Walsh Code[J].Journal of Beijing University of Posts and Telecommunications,2012,35(6):20-24. |
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| Authors: | YANG Hua JIANG Guo-ping |
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| Affiliation: | 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 |
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| 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. |
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| Keywords: | orthogonal differential chaos shift keying Walsh code chaos bit error rate |
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