一种新的广义正交码m-ZCZ序列集的构造方法  

Novel Code of ZCZ Based on m-Sequences

作　　者：刘丽[1] 李琦[1] 高军萍[1] 贾志成[1] 

机构地区：[1]河北工业大学,天津300401

出　　处：《微计算机信息》2010年第21期90-91,共2页Control & Automation

基　　金：国家自然科学基金项目;基金申请人:李琦;项目名称:阵列偶相关理论及其在扩频通信系统中的应用研究;基金颁发部门:国家自然科学基金委(60502016);河北省教育厅科研计划项目(2008318)资助课题

摘　　要：基于m序列的性质,给出了由m序列构造广义正交码m-ZCZ的方法,其ZCZ长度可任取,突破了2的整数次幂的限制,在此基础上,应用多个子码的方式,对m-ZCZ码集合进行扩展,突破了零相关区长度对码集合大小的限制,大大扩展了码集合的大小,可作为扩频序列应用于准同步CDMA系统中,以降低甚至消除信道干扰,从而提高系统容量。Based on the knowledge of m-sequences, a binary generalized orthogonal sequences （GOS）, called m-ZCZ code, is constructed. The value of ZCZ length breaks through the restriction, and can be flexibly chosen to match the practical channel in a high degree. Then a new method of extension to the m-ZCZ code set size which using more sub codes was defined. The new code breaks through the restriction of ZCZ to the size of code, greatly expanded the size of the code. The m-ZCZ sequence set can be applied to the quasi-synchronous CDMA system and reduce even eliminate co-channel interference, so increase the system capability.

关 键 词：广义正交序列 M序列 零相关区 准同步CDMA 

分 类 号：TN918[电子电信—通信与信息系统]