| 改进型分段线性混沌序列用作DS-CDMA系统直扩码的分析 |
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| 引用本文： | 饶妮妮. 改进型分段线性混沌序列用作DS-CDMA系统直扩码的分析[J]. 电子学报, 2004, 32(10): 1684-1687 |
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| 作者姓名： | 饶妮妮 |
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| 作者单位： | 电子科技大学生命科学与技术学院,四川成都 610054 |
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| 摘 要： | 本文提出用改进型分段线性混沌映射来产生DS－CDMA系统的直扩码;分析了这类直扩码的特性以及两种量化函数对其特性的影响;计算机仿真结果表明,在适当的初值条件下这类序列具有周期长、平衡性好、自相关函数较尖锐、互关值较小以及线性复杂度高等特性,适合用作DS-CDMA系统直扩码.
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| 关 键 词： | 改进型分段线性混沌序列 直扩码 DS-CDMA 量化函数 |
| 文章编号： | 0372-2112(2004)10-1684-04 |
| 收稿时间： | 2002-12-13 |
Analysis of Improved Piecewise Linear Chaotic Sequences as Spreading Codes for DS-CDMA System |
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| RAO Ni-ni. Analysis of Improved Piecewise Linear Chaotic Sequences as Spreading Codes for DS-CDMA System[J]. Acta Electronica Sinica, 2004, 32(10): 1684-1687 |
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| Authors: | RAO Ni-ni |
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| Affiliation: | Institute of Life Science and Technology,UESTC,Chengdu 610054,China |
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| Abstract: | The improved piecewise linear chaotic mapping is presented to generate the spreading codes for DS-CDMA system in this paper.The spreading properties and the effects of two quantification functions on the spreading properties are analyzed.The simulation results show that the sequences have long period,good balance,δ-like auto-correlation and very small cross-correlation and great linear complexity under the condition of the proper initial values and are suitable to be used as the spreading codes for DS-CDMA. |
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| Keywords: | DS-CDMA |
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