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三元低相关区序列集的新构造

李胜强1,2;黄华伟2;张宁2;肖国镇2
  

  1. (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)
  • 收稿日期:2007-12-20 修回日期:1900-01-01 出版日期:2008-12-20 发布日期:2008-12-20
  • 通讯作者: 李胜强

New design of ternary low correlation zone sequence sets

LI Sheng-qiang1,2;HUANG Hua-wei2;ZHANG Ning2;XIAO Guo-zhen2
  

  1. (1. National Key Lab. of Communication, UESTC, Chengdu 610054, China;
    2. State Key Lab. of Integrated Service Networks, Xidian Univ., Xi’an 710071, China)
  • Received:2007-12-20 Revised:1900-01-01 Online:2008-12-20 Published:2008-12-20
  • Contact: LI Sheng-qiang

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.

关键词: 低相关区序列, 相关函数, d-form 函数, 差分平衡

Abstract: A column sequence set of period 3m+1-1 is devised by the idea of confusion and balance from the ternary sequences of period 3m-1 with the ideal autocorrelation property proposed by Helleseth et al., and new ternary low correlation zone sequence sets of period 3n-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.

Key words: low correlation zone sequence, correlation function, d-form function, difference balance

中图分类号: 

  • TN914.4