OFDM信号在时变信道中的性能分析与改进接收算法  

Performance Analysis and an Improved Receive Algorithm of OFDM Signals in a Time-Varying Channel

作　　者：杨勇[1] 邹国良[1] 

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《上海大学学报（自然科学版）》2003年第3期210-212,220,共4页Journal of Shanghai University:Natural Science Edition

摘　　要：信道的时变性对OFDM信号的传输质量产生较大的影响.该文分析了在时变信道中OFDM系统的性能,并在此基础上提出了一种改进的接收算法.试验结果表明,改进算法的信噪比得到明显改善.Timevarying characteristic of channels has major effects on transmission quality of OFDM signals. The performance of an OFDM system in timevarying channel is analysed in this paper, and an improved receive algorithm proposed. Experimental results indicate a pronounced improvement in signaltonoise ratio by using the proposed algorithm.

关 键 词：信扰比 分段接收 时变信道 OFDM信号 传输质量 信噪比 

分 类 号：TN914.4[电子电信—通信与信息系统]