基于Golay互补序列的UWB同步和信道估计  

Synchronization and Channel Estimation for UWB based on Golay Complementary Sequences

作　　者：李小蓓[1,2] 张永顺[1] 赵岩[3] 

机构地区：[1]空军工程大学导弹学院,陕西三原713800 [2]空军工程大学电讯工程学院,西安710077 [3]海军通信应用研究所,北京100841

出　　处：《火力与指挥控制》2010年第5期121-123,131,共4页Fire Control & Command Control

基　　金：国家自然科学基金资助项目(60601016)

摘　　要：提出了一种基于Golay互补序列的UWB信道估计和同步方法。该方法利用了Golay互补序列所具有的互补的自相关特性。首先引出了Golay互补序列的插0序列的概念,并证明了这种插0序列也是Golay互补序列。通过依次发送Golay互补序列,在接收端采样后分别与相应Golay插0序列进行相关并求两者和,根据门限判别即可完成同步和信道估计,仿真结果表明了该方法是有效的。A scheme of channel estimation and synchronization for UWB based on Golay complementary sequences is proposed.The paper begins with an introduction of ＂insert zero Golay complementary sequences＂ concept,followed by a theorem that state this kind of insert zero sequences is also Golay Complementary Sequences.On the basis of above theorem,the acquisition scheme is studied in detail,in which,the technology used is based on the transmission of Golay Complementary Pair and their reception and detection using correlation with its ＂insert zero Golay complementary sequences＂,the synchronizing and channel estimation information are got from calculating the sum of the delay cross-correlation values by means of two correlation branches combined with threshold detection.This method has an advantage compared with those available;the channel delay spread can be longer than the frame duration so that the channel response to consecutive monocycles are overlapped.The simulation result shows the scheme is effective.

关 键 词：超宽带 格雷互补序列 同步 信道估计 

分 类 号：TN973.3[电子电信—信号与信息处理]