| 数字混沌扩频通信系统* |
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| 引用本文： | 王亥,胡健栋.数字混沌扩频通信系统*[J].北京邮电大学学报,1998,21(4):7-11. |
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| 作者姓名： | 王亥 胡健栋 |
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| 作者单位： | 北京邮电大学电信工程学院, 北京 100876 |
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| 基金项目： | 高等学校博士学科点专项科研基金和邮电部重点科研资助项目 |
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| 摘 要： | 系统地研究了Logistic-Map数字混沌序列, 及其“0”、 “1”等概率统计特性和相关特性, 提出了用它构成扩频通信系统的方案, 首次用高斯法导出了它的误码计算式. 并用SPW模型的测试进行验证.研究表明, 数字序列方案可降低运算量, 扩展序列周期, 有较好的效果.
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| 关 键 词： | 扩频通信 混沌 相关特性 误码率 |
| 收稿时间： | 1997-10-09 |
Digital Chaotic Spread Spectrum Communication Systems |
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| Wang Hai,Hu Jiandong.Digital Chaotic Spread Spectrum Communication Systems[J].Journal of Beijing University of Posts and Telecommunications,1998,21(4):7-11. |
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| Authors: | Wang Hai Hu Jiandong |
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| Affiliation: | School of Telecommunication Engineering,Beijing University of Posts and Telecommunications, Beijing 100876 |
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| Abstract: | The application of Logistic-Map in spread-spectrumcommunications is dealt with. The correlation characteristics of digital sequences of Logistic-Map and the statistical properties of the occurrence of “0” and “1” of the chaotic sequences are investigated. A novel analytic formula for calculating bit-error-rate of digital chaotic spread spectrum communicationsystem is obtained by using Gaussian method. Which is verified by measurements on SPW simulation system. As an economic way for chaotic spread-spectrum comminications, the cyclic period of the sequences can be expand, the complexity and time of its generation can be reduced. |
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| Keywords: | spread spectrum communications chaos correlation property error rate |
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