近互补序列理论上界强抗干扰能力的LS扩频码

doi:10.13190/jbupt.200702.1.106

北京邮电大学学报 ›› 2007, Vol. 30 ›› Issue (2): 1-5.doi: 10.13190/jbupt.200702.1.106

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近互补序列理论上界强抗干扰能力的LS扩频码

余政1 ，杨星1 ，邹永忠1，李道本1，孙宇昊2

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

收稿日期:2006-04-18 修回日期:1900-01-01 出版日期:2007-04-30 发布日期:2007-04-30
通讯作者: 余政

Near Theoretical Upper Bound Interference Free Complementary Sequences: Improved LS Spreading Codes

YU Zheng 1，YANG Xing 1，ZOU Yong-Zhong 1，LI Dao-ben 1，SUN Yu-hao 2

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:

Received:2006-04-18 Revised:1900-01-01 Online:2007-04-30 Published:2007-04-30
Contact: YU Zheng

摘要/Abstract

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

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.

Key words: loose synchronous spreading code, Kronecker product, zero correlation window

中图分类号:

TN914.53

余政1 ，杨星1 ，邹永忠1，李道本1，孙宇昊2. 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, 30(2): 1-5.

YU Zheng 1，YANG Xing 1，ZOU Yong-Zhong 1，LI Dao-ben 1，SUN Yu-hao 2
. Near Theoretical Upper Bound Interference Free Complementary Sequences: Improved LS Spreading Codes[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2007, 30(2): 1-5.

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近互补序列理论上界强抗干扰能力的LS扩频码

Near Theoretical Upper Bound Interference Free Complementary Sequences: Improved LS Spreading Codes

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