| 异步码分多址通信中混沌扩频序列的选择 |
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| 引用本文： | 张琪,郑君里.异步码分多址通信中混沌扩频序列的选择[J].电子学报,2001,29(7):865-867. |
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| 作者姓名： | 张琪 郑君里 |
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| 作者单位： | 清华大学电子工程系,北京 100084 |
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| 基金项目： | 国家自然科学基金，60072001， |
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| 摘 要： | 根据异步码分多址通信的特点,本文提出了扩频序列的优选准则,并给出了混沌序列的优选方法.计算结果表明,根据该方法优选的混沌序列伪随机特性得到了显著提高,与Gold序列相比较,更适于异步码分多址通信系统的应用.最后,对各种混沌码组的性能进行了比较.
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| 关 键 词： | 异步码分多址通信 混沌扩频序列 优选准则 |
| 文章编号： | 0372-2112 (2001) 07-0865-03 |
Choice of Chaotic Spreading Sequences for Asynchronous DS-CDMA Communication |
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| ZHANG Qi,ZHENG Jun-li.Choice of Chaotic Spreading Sequences for Asynchronous DS-CDMA Communication[J].Acta Electronica Sinica,2001,29(7):865-867. |
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| Authors: | ZHANG Qi ZHENG Jun-li |
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| Affiliation: | Department of Electronic Engineering,Tsinghua University,Beijing 100084,China |
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| Abstract: | This paper is devoted to the choice of chaotic spreading sequence for asynchronous DS-CDMA communication.Aiming at the characteristic of asynchronous DS-CDMA system,some criteria on optimizing spreading sequences are proposed.The method of choosing is also presented.According to the method,chaotic spreading sequences with better performance are obtained.Calculation shows that these optimized chaotic spreading sequences are much better than Gold sequences.At last,5 kinds of chaotic sequences' performance are compared. |
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| Keywords: | asynchronous DS-CDMA chaotic spreading sequences criteria |
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