| 关于准同步CDMA系统的广义正交扩频序列 |
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| 引用本文： | 曾凡鑫.关于准同步CDMA系统的广义正交扩频序列[J].重庆邮电大学学报(自然科学版),2003,15(4):1-4. |
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| 作者姓名： | 曾凡鑫 |
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| 作者单位： | 重庆通信学院,信息技术教研室,重庆,400035 |
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| 基金项目： | 国家自然科学基金，重庆市应用基础研究基金，60272083，7363，， |
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| 摘 要： | 给出了一种根据等距码构造具有零相关区或低相关区扩频序列的方法,这些扩频序列能应用于近似同步CDMA系统以删除系统的多址干扰.此外,这些序列相关函数的下界改善,对于那些不能达到下界的具有零相关区的序列,给出了一种新的下界.
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| 关 键 词： | CDMA AS-CDMA 多址干扰 零相关区 扩频序列 |
| 收稿时间： | 2003/5/13 0:00:00 |
On generalized orthogonal spreading sequences for quasi synchronous CDMA system |
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| ZENG Fan-xin.On generalized orthogonal spreading sequences for quasi synchronous CDMA system[J].Journal of Chongqing University of Posts and Telecommunications,2003,15(4):1-4. |
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| Authors: | ZENG Fan-xin |
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| Institution: | Graduate School of Information Technology, Chongqing Communication Institute, Chongqing 400035,P.R. China |
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| Abstract: | Based on equidistant code, a method for obtaining spreading sequences with zero correlation zone (ZCZ)or low correlation zone (LCZ) is proposed, these spreading sequences can be employed in approximatelysynchronized code division multiple access (AS-CDMA) system to eliminating multiple access interference. Inaddition, lower bounds on correlation function of such sequence set are improved, a new lower bound, for thoseZCZ sequences which don't meet lower bound, is presented. |
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| Keywords: | CDMA AS-CDMA multiple access interference zero correlation zone low correlation zone spreadingsequence |
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