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| 近互补序列理论上界强抗干扰能力的LS扩频码 | |
| 引用本文： | 余 政,杨 星,邹永忠,李道本,孙宇昊 .近互补序列理论上界强抗干扰能力的LS扩频码[J].北京邮电大学学报,2007,29(2):1-5. |
| 作者姓名： | 余 政 杨 星 邹永忠 李道本 孙宇昊 |
| 作者单位： | [1]北京邮电大学信息处理与智能技术重点实验室,北京100876 [2]国家安全生产应急救援指挥中心,北京100713 |
| 摘 要： | 设计了一种利用正交矩阵与零相关窗（ZCW）互补码Kronecker积的方法，构造了强抗干扰能力的loose synchronous（LS）ZCW组码，并证明了其ZCW特性。新组码增加了每个码字的理想互补码数目，扩大了组内码字的ZCW，使组内码字的自相关和互相关ZCW宽度完全相等，组间码字的最小ZCW与基本LS码的最小ZCW一致；构造的LS码字数目与理论上界的数目仅相差1。仿真结果与理论推导相符。 |
| 关 键 词： | LS扩频码 克罗内克积 零相关窗 |
| 文章编号： | 1007-5321（2007）02-0001-05 |
| 收稿时间： | 2006-04-18 |
| 修稿时间： | 2006年4月18日 |
Near Theoretical Upper Bound Interference Free Complementary Sequences: Improved LS Spreading Codes |
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| YU Zheng,YANG Xing,ZOU Yong-zhong,LI Dao-ben,SUN Yu-hao.Near Theoretical Upper Bound Interference Free Complementary Sequences: Improved LS Spreading Codes[J].Journal of Beijing University of Posts and Telecommunications,2007,29(2):1-5. | |
| Authors: | YU Zheng YANG Xing ZOU Yong-zhong LI Dao-ben SUN Yu-hao |
| Affiliation: | 1. Key Laboratory of Information Processing and Intelligent Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China;
2. National Work Place Emergency Management Center, Beijing 100713, China） Abstract: |
| Abstract: | A new class of loose synchronous(LS)spreading codes with zero correlation window(ZCW) was presented.It was constructed by making Kronecker product of orthogonal matrix and ZCW complementary codes.This new LS code increases the number of perfect complementary pair,and extends ZCW within the same group.Moreover,both auto correlation and cross correlation of ZCW in the same group remain identical.The minimum ZCW among different groups is the same as that of basic LS codes.The method for constructing these new codes is presented and the ZCW properties are also verified.The number of these new codes is only smaller than theoretical upper bound by one. |
| Keywords: | loose synchronous spreading code Kronecker product zero correlation window |
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