阵列天线下异步WCDMA信号的盲解码方法  

Blind Decoding Method of Asynchronous WCDMA Signals Under Array Antenna

作　　者：苗佳佳 沈雷[1] 郭婧婧 韩煜[2] MIAO Jiajia;SHEN Lei;GUO Jingjing;HAN Yu(School of Communication Engineering,Hangzhou Dianzi University,Hangzhou 310018,China;State Key Lab of Information Control Technology in Communication System, The 36th Research Institute of China Electronics Technology Group Corporation,Jiaxing,Zhejiang 314001,China)

机构地区：[1]杭州电子科技大学通信工程学院,杭州310018 [2]中国电子科技集团公司第三十六研究所通信系统信息控制技术国家级重点实验室,浙江嘉兴314001

出　　处：《计算机工程》2018年第10期107-111,共5页Computer Engineering

基　　金：国家自然科学基金(61401133);中国博士后科学基金(2014M562302)

摘　　要：为了估计多用户宽带码分多址(WCDMA)信号的信源信息,利用阵列天线空域滤波对多用户信号进行分离,提出载波调制WCDMA信号盲解码方法,基于主分量分析并结合锁相环技术,估计不同用户的信源信息。在载波频率未知的情况下,根据宽带码分多址信号中扰码和OVSF码叠加序列的帧重复性进行帧等间隔采样,通过构建载波调制的宽带码分多址信号模型进行盲解码。仿真结果表明,该方法可以对多用户WCDMA信号的信源信息进行有效盲解码。In order to estimate the source information of multi-user Wideband Code Division Multiple Access(WCDMA)signals,the multi-user signals are separated by array antenna airspace filtering first,and then the Principal Component Analysis(PCA)combined with the Phase Locked Loop(PLL)technology is used to estimate the source information of different users.In the case of unknown carrier frequency,this method utilizes the frame repetition of WCDMA signal scrambling code and OVSF code superposition sequence to construct a WCDMA signal model of the carrier modulation to perform blind decoding.Simulation results show that the method can effectively and blindly decode the source information of multi-user WCDMA signals.

关 键 词：宽带码分多址 独立分量分析 主分量分析 锁相环 盲解码 

分 类 号：TN911.7[电子电信—通信与信息系统]