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一种OFDM系统中的频偏估计方法 被引量:1

A Kind of Frequency Offset Estimation in OFDM Systems
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摘要 OFDM系统中频偏估计方法是基于嵌入在数据帧中的循环前缀进行频偏估计,结果表明只利用一个符号的循环前缀误差较大,采取扩大符号范围,可以得到较满意的估计效果。提出一种将一个符号倒序后采取最大似然法进行估计。仿真结果表明,能显著提高精确度。 Synchronization schemes for orthogonal frequency-division multiplexing (OFDM) systems using prefix embedded in the frame to carry out frequency offset estimation, the result shows enlarging the search range can improve the accuracy. Present a synchronization scheme can get satisfied performance using the max likelyhood estimation method through inversing the symbol sequence.
作者 谭泽富
出处 《重庆三峡学院学报》 2006年第3期95-97,共3页 Journal of Chongqing Three Gorges University
基金 重庆市教委基金资助项目
关键词 频偏估计 正交频分复用 最大似然估计 同步 frequency offset estimation OFDM maximum-likelihood estimation synchronization
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参考文献8

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