一种新的扩频序列偶的研究  

Research on a New Spread Spectrum Sequence Pairs

作　　者：李兆斌[1,2] 蒋挺[1] 邹卫霞[1] 周正[1] 

机构地区：[1]北京邮电大学无线网络实验室,北京100876 [2]北京电子科技学院,北京100070

出　　处：《电子与信息学报》2009年第4期889-892,共4页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(60432040,60772021);北京市自然科学基金(4052021);教育部博士点基金(20060013008);韩国仁荷大学IT研究中心(INHAUWB-ITRC);北京电子科技学院基金(YZDJ0709)资助课题

摘　　要：该文提出一种新的最佳相关信号,即伪随机屏蔽序列偶,研究了其变换性质和组合允许条件,运用这些性质和条件可以缩小伪随机屏蔽序列偶的搜索范围,提高计算机搜索的效率。在此基础上编写了计算机搜索算法,搜索出若干长度的伪随机屏蔽序列偶。对伪随机屏蔽序列偶扩频通信系统的性能进行了仿真,仿真结果表明伪随机屏蔽序列偶作为扩频码的性能在一些场合要优于同长度的m序列。A new perfect correlation signal is proposed, which can be called as Pseudorandom Punctured Sequence Pairs （PPSP）. The properties and combinatorial admissibility conditions of PPSP are studied. By making use of these properties and conditions, the efficiency of searching the PPSP can be improved significantly. As a computational illustration, a set of pseudorandom punctured sequence pairs are given. The performances of PPSP axe analyzed and compared with m sequence in spread spectrum communication. The simulation results show that the performances of PPSP are better than m sequence in some conditions.

关 键 词：扩频通信系统 最佳相关信号 序列偶 伪随机 误码率 

分 类 号：TN914.43[电子电信—通信与信息系统]