摘要
W CDMA系统中 ,各基站之间是异步时序关系 .为了快速识别基站 ,3GPP协议引入了三步同步的小区搜索算法 .第一步对主同步信道的搜索是极其重要的 .采用传统的匹配滤波器结构占用的硬件资源非常庞大 .主同步信道是由广义分层Golay序列构成的 ,根据其构造特性 ,我们提出一种新颖的广义分层Golay匹配滤波器 (简称GHGMF) .理论分析证明该结构大幅度降低了硬件实现的复杂度 ,对于工程应用具有重要价值 .
The timing relationship between base stations is asynchronous in W-CDMA system.So the three-step cell search algorithm is introduced in 3GPP protocols in order to fast identify the special base station.The first step,Primary Synchronous Channel(P-SCH) acquisition,is very important,but the conventional matched filter occupies much large hardware resources.Because the P-SCH is composed of the Generalised Hierarchical Golay(GHG) Sequence,we propose a novel GHG matched filter according to its structural property,which extremely reduces the hardware complexity.Generally speaking,such GHGMF structure is significant for engineering applications.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2002年第10期1474-1476,共3页
Acta Electronica Sinica
基金
国家自然科学基金重大项目 (No 698962 4 3)
