| 一种基于混沌混合映射通信系统的降噪及安全性能分析 |
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| 引用本文： | 张兴周,陈建国,牟冬英,谢耀菊,栾宇. 一种基于混沌混合映射通信系统的降噪及安全性能分析[J]. 哈尔滨工程大学学报, 2005, 26(5): 663-667 |
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| 作者姓名： | 张兴周 陈建国 牟冬英 谢耀菊 栾宇 |
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| 作者单位： | 哈尔滨工程大学,信息与通信工程学院,黑龙江,哈尔滨,150001;哈尔滨工程大学,信息与通信工程学院,黑龙江,哈尔滨,150001;哈尔滨工程大学,信息与通信工程学院,黑龙江,哈尔滨,150001;哈尔滨工程大学,信息与通信工程学院,黑龙江,哈尔滨,150001;哈尔滨工程大学,信息与通信工程学院,黑龙江,哈尔滨,150001 |
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| 基金项目： | 哈尔滨工程大学基础研究基金资助项目(HEUF04106) |
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| 摘 要： | 利用Logistic映射与立方映射构造了一种混沌混合映射,对所产生的混合映射进行了Lyapunov指数及相关性等特性的分析,同时用此映射产生的混沌信号作为一种经过小波降噪改进构成的参数切换混沌通信系统所用的混沌载波,分析表明了此系统能很好地对所要传递的信息保密,同时系统的抗噪声性能也得到提高,最后对所构造的系统的安全性从相空间重构的角度进行了阐述,通过系统仿真验证了此种方案的可靠性.
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| 关 键 词： | 混沌 混合映射 混沌通信 小波降噪 |
| 文章编号： | 1006-7043(2005)05-0663-05 |
| 收稿时间： | 2004-11-12 |
| 修稿时间： | 2004-11-12 |
Performance analysis of de-noising and security for a chaotic communication system based on mixing several chaotic maps |
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| ZHANG Xing-zhou,CHEN Jian-guo,MOU Dong-ying,XIE Yao-ju,LUAN Yu. Performance analysis of de-noising and security for a chaotic communication system based on mixing several chaotic maps[J]. Journal of Harbin Engineering University, 2005, 26(5): 663-667 |
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| Authors: | ZHANG Xing-zhou CHEN Jian-guo MOU Dong-ying XIE Yao-ju LUAN Yu |
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| Affiliation: | School of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China |
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| Abstract: | A chaotic mixed map was constructed using logistic mapping and cube mapping.Properties of the mixed map were analyzed by Lyapunov exponent and correlation.A chaotic communication system of shifting parameter was also constructed by means of wavelet de-noising based on the chaotic mixed map that produced chaotic carrier wave signals.Analysis indicates that the system keeps transmittal signals secret.Otherwise,the performance of resisting noise is promoted.Finally,the security of the constructed system is specified from a phase space reconstruction point of view.Results of system simulation prove the feasibility of the scheme. |
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| Keywords: | chaos mixed map chaotic communication wavelet de-noising |
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