MC-CDMA系统中基于EKF的载波同步方法(英文)  

The Carrier Synchronization Method Based on EKF in MC-CDMA Systems

作　　者：尹欣[1] 邵谦明[1] 

机构地区：[1]复旦大学通信科学与工程系,上海200433

出　　处：《复旦学报（自然科学版）》2003年第1期19-22,共4页Journal of Fudan University：Natural Science

基　　金：ShanghaiMunicipalEducationCommissionKeyDisciplineFund(B990 111)

摘　　要：针对多载波码分多址系统,提出一种基于扩展卡尔曼滤波器(EKF)的载波相位估计器.该技术不依赖于同步的采样速率,而且不需要传输导频信号.给出了相位误差的等效状态空间模型,并使用扩展卡尔曼滤波器方法进行跟踪.A carrier phase offset estimator is presented, which is based on extended Kalman filter (EKF) and for multi carrier code division multiple access (MC CDMA) systems. The proposed technique depends on non synchronized sampling rate while no pilot is required to transmit. An equivalent state space model is also derived for phase error and then extended Kalman filter method is used for tracking.

关 键 词：MC-CDMA 扩展卡尔曼滤波器 载波同步 多载波码分多址系统 相位误差 正交频分复用 

分 类 号：TN914.53[电子电信—通信与信息系统]