二元GMW序列Niho采样下的互相关性分析  

Niho Type Crosscorrelation Analysis of Binary GMW Sequences

作　　者：李嵩山[1] 邓印凯[1] 周亮[1] 

机构地区：[1]电子科技大学抗干扰国家级重点实验室,四川成都611731

出　　处：《通信技术》2012年第12期23-26,29,共5页Communications Technology

摘　　要：GMW序列是一种线性复杂度很高的非线性序列,在直接序列扩频系统中有着很好的应用前景。通过证明级联二元GMW序列与其采样序列的互相关性在特定条下和构造级联GMW序列的幂无关,将二元GMW序列与其采样序列的互相关性与m序列联系起来。通过现有二元m序列在Niho采样下的互相关性研究结论,分析证明了级联二元GMW序列在Niho采样下的互相关性具有四值、五值、六值特性。A criterion is proved that the crosscorrelation between a cascaded GMW sequence and its decimation is independent of all powers. Then, the crosscorrelation is associated with m sequences. By using the existed research results of binary m sequences based on Niho decimation, the 4-va,lued, 5-valued and 6-valued crosscorrelation of binary GMW sequences in Niho type decimation is analyzed and proved.

关 键 词：GMW序列 Niho采样 互相关性 

分 类 号：TN918[电子电信—通信与信息系统]