三元低相关区序列集的新构造  

New design of ternary low correlation zone sequence sets

作　　者：李胜强[1,2] 黄华伟[2] 张宁[2] 肖国镇[2] 

机构地区：[1]电子科技大学抗干扰技术国家重点实验室,四川成都610054 [2]西安电子科技大学综合业务网理论及关键技术国家重点实验室,陕西西安710071

出　　处：《西安电子科技大学学报》2008年第6期1100-1104,1126,共6页Journal of Xidian University

基　　金：国家自然科学基金资助(6077300360603010);"十一五"国家部委预研项目(1010××××××105)

摘　　要：利用Helleseth等人提出的周期为3m-1且具有理想自相关性质的三元序列,运用混淆和平衡的思想,构造出满足一定条件的周期为3m+1-1的列序列集,从而构造出周期为3n-1的三元低相关区序列集.其中m,n为正整数,且满足(m+1)|n.计算结果表明,依Tang-Fan-Matsufuji界,该低相关区序列集是最优的,可用于实际的准同步CDMA系统中.A column sequence set of period 3^m＋1-1 is devised by the idea of confusion and balance from the ternary sequences of period 3^m-1 with the ideal autocorrelation property proposed by Helleseth et al , and new ternary low correlation zone sequence sets of period 3^n-1 are constructed by using the column sequence set, where m and n are different positive integers with （m＋1）｜n. The conclusion shows that the low correlation zone sequence sets are optimal with respect to the Tang-Fan-Matsufuji bound and can be applied to practical quasi-synchronous（QS） CDMA systems.

关 键 词：低相关区序列 相关函数 d-form函数 差分平衡 移动通信系统 CDMA 

分 类 号：TN929.5[电子电信—通信与信息系统]