一种新颖的STBC-OFDM信道估计算法  

A Novel Channel Estimation Algorithm with STBC-OFDM System

作　　者：刘文珂[1] 马晨欣[1] 胡君杰[1] 

机构地区：[1]信息工程大学信息工程学院,河南郑州450002

出　　处：《信息工程大学学报》2005年第3期79-81,共3页Journal of Information Engineering University

摘　　要：在使用空时编码的OFDM系统中,接收端为正确解码需要精确的信道估计信息。本文给出了一种基于空时编码训练序列的信道估计算法,这种算法基于空时分组码的正交性。模拟实验证明该算法适用于慢变瑞利衰落信道和时不变频率选择性衰落信道,同时该算法优于基于LS的算法。Accurate channel estimation is needed in space-time coded OFDM systems for decoding purposes. In this paper, a novel channel tracking algorithm based on the orthogonality of space-time block codes is presented. The algorithm is tested via Monto Carlo computer simulations and it shows that the algorithm outperforms LS-based approach without additional complexity.

关 键 词：OFDM 空时分组码 信道估计 

分 类 号：TN911[电子电信—通信与信息系统]