| 基于混沌参数切换逆映射的混沌通信系统 |
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| 引用本文： | 陈建国,张兴周. 基于混沌参数切换逆映射的混沌通信系统[J]. 应用科技, 2005, 32(4): 16-18 |
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| 作者姓名： | 陈建国 张兴周 |
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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 |
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| 摘 要： | 对一种采用Logistic逆映射的混沌数字调制通信系统输出的逆映射调制序列采用伯内廷法做了Lya punov指数谱的分析,发现其在较宽的参数范围内都是具有混沌性质的,从而解决精度有限使混沌序列呈现周期性的问题,同时还用取反变换和电平搬移的方法分别对此种通信系统的通信安全性与误码率做了改进,经过仿真验证了系统的可实现性和优越性.
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| 关 键 词： | 逆映射 Lyapunov指数 伯内廷法 电平搬移 取反变换 |
| 文章编号： | 1009-671X(2005)04-0016-03 |
| 修稿时间： | 2004-05-12 |
A chaotic communication based on the inverse mapping of the variable parameters |
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| CHEN Jian-guo,ZHANG Xing-zhou. A chaotic communication based on the inverse mapping of the variable parameters[J]. Applied Science and Technology, 2005, 32(4): 16-18 |
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| Authors: | CHEN Jian-guo ZHANG Xing-zhou |
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| Abstract: | The Lyapunov exponent analysis of inverse mapping modolation sequence,which is the output from the chaotic digital modulation communication system with logistic inverse mapping,reveals the chaotic properties in relatively wide parameter range,so the problem that the chaotic sequence presents periodicity is resolved.Meanwhile,communication security and BER are improved by using negative transformation and voltage movement.Simulation proves the feasibility and advantages of the system. |
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| Keywords: | inverse mapping lyapunov exponent bonneting method voltage movement negative transformation |
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