| OFDM系统上行链路的一种载波偏差估计算法 |
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| 引用本文： | 边东明, 冉崇森, 仪新颖. OFDM系统上行链路的一种载波偏差估计算法[J]. 电子与信息学报, 2004, 26(6): 864-870. |
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| 作者姓名： | 边东明 冉崇森 仪新颖 |
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| 作者单位： | 解放军信息工程大学信息技术学院,郑州,45002;解放军理工大学工程兵学院,南京,210007 |
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| 摘 要： | 通过分析OFDM信号的特点,该文给出了OFDM系统上行链路的一种基于高倍钟采样的载波偏差估计算法.与采用循环前缀的载波偏差估计算法相比,该算法实现复杂度低,算法精度高,受用户子载波数目影响较小,适宜于多用户OFDM系统.计箅机仿真表明该算法具有优良的性能,优于采用循环前缀的载波偏差估计算法.
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| 关 键 词： | 载波偏差估计 载波同步 OFDM 上行链路 |
| 文章编号： | 1009-5896(2004)06-0864-07 |
| 收稿时间： | 2002-12-20 |
| 修稿时间： | 2002-12-20 |
A Carrier Frequency Offset Estimation Algorithm for Uplink of OFDM Systems |
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| A Carrier Frequency Offset Estimation Algorithm for Uplink of OFDM Systems[J]. Journal of Electronics & Information Technology, 2004, 26(6): 864-870. |
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| Affiliation: | PLA University of Informationand Engineering,Zhengzhou 45002, China;PLA University of Scienceand Technology,Nanjing 210007,China |
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| Abstract: | By analyzing the OFDM signal, a carrier frequency offset estimation algorithm for uplink of OFDM systems is proposed. The algorithm with high accuracy can be imple-mented easily, and the performance of the algorithm is almost not affected by the sub-carrier number per user, which makes the algorithm suit for the multi-user OFDM system. The simulation shows that the algorithm has a better performance than the algorithm based on cyclic prefix.
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| Keywords: | Carrier frequency offset estimation Carrier synchronization OFDM Uplink |
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