| 混沌扩频序列的产生及其在CDMA中的应用 |
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| 引用本文： | 于银辉,王玥. 混沌扩频序列的产生及其在CDMA中的应用[J]. 吉林大学学报(信息科学版), 2004, 22(1): 23-26 |
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| 作者姓名： | 于银辉 王玥 |
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| 作者单位： | 吉林大学,综合信息矿产预测研究所,吉林,长春,130026;吉林大学,通信工程学院,吉林,长春,130021;吉林大学,通信工程学院,吉林,长春,130021 |
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| 基金项目： | 吉林大学校科研和教改项目 |
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| 摘 要： | 以改进型的Logisti-Map为基础,采用迭代法生成混沌序列.讨论了该序列的敏感性、遍历性、抗噪性和概率分布密度等特性,对混沌CDMA(Code Division Multiple Access)直扩多用户系统多址干扰进行了分析.仿真实验结果表明,混沌序列与传统的伪随机序列相比,具有产生简单、码源丰富、抗干扰能力强等特性,适合充当扩频通信中的扩频序列.
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| 关 键 词： | 混沌 逻辑斯谛映射 扩频序列 多址干扰 |
| 文章编号： | 1671-5896(2004)01-0023-04 |
| 修稿时间： | 2003-06-16 |
Generation of chaotic spread spectrum sequences and its application in CDMA system |
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| YU Yin-hui. Generation of chaotic spread spectrum sequences and its application in CDMA system[J]. Journal of Jilin University:Information Sci Ed, 2004, 22(1): 23-26 |
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| Authors: | YU Yin-hui |
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| Affiliation: | YU Yin-hui~ |
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| Abstract: | Chaotic spread spectrum sequences are created by iteration method based on Logistic-map. The sensitivity, ergodicuty, anti-interference and probability distribution density of the sequences are studied. MAI(Multiple Access Interference) of multiuser system in chaotic DS-CDMA is analyzed. Simulation results show that chaotic sequences have the properies of simple generation, rich code elements, ergodicuty and sensitivity compared with PN(Pseudo-random Number) sequences, It meets the demand of spread-spectrum sequence in the spread-spectrum communication system. |
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| Keywords: | chaos Logistic-Map spread spectrum sequences multiple access interference(MAI) |
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