| OFDM系统中简单高效的时间同步算法 |
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| 引用本文： | 谭泽富.OFDM系统中简单高效的时间同步算法[J].重庆大学学报(自然科学版),2006,29(8):106-110. |
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| 作者姓名： | 谭泽富 |
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| 作者单位： | 重庆三峡学院电子工程系,重庆万州404000 |
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| 摘 要： | 提出一种新的正交频分复用（OFDM）系统中的最大似然时偏估计算法．该算法在高斯加白噪声（AWGN）信道和多径衰落信道2种环境下与H．Minn的算法基于估计的均方误差进行了性能比较．提出的算法由于在高信噪比的情况下不存在性能下限，因而即便是在多径衰落环境下仍能保证较高的估计精度和较低的运算复杂度．
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| 关 键 词： | 同步 最大似然估计 信噪比 正交频分复用 |
| 文章编号： | 1000-582X（2006）08-0106-05 |
| 收稿时间： | 2006-04-08 |
| 修稿时间： | 2006-04-08 |
Simple and High Performance Timing Synchronization in OFDM System |
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| TAN Ze-fu.Simple and High Performance Timing Synchronization in OFDM System[J].Journal of Chongqing University(Natural Science Edition),2006,29(8):106-110. |
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| Authors: | TAN Ze-fu |
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| Institution: | Department of Electron Engineering, Chongqing Three Gorges College, Wanzhou 404000, China |
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| Abstract: | One ML timing offset estimation method for orthogonal frequency-division multiplexing(OFDM) systems is presented.The performance of our timing offset estimator are compared to that of H.Minn's estimator in terms of estimator variance error in both AWGN channel and multipath fading channel. Because no performance floor exists under high SNR condition,the new estimator can get more accurate estimation result with low computational complexity even under multipath fading environment. |
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| Keywords: | synchronization maximum likelihood estimation signal to noise ratio orthogonal frequency-division multiplexing |
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