| OFDM系统定时与频率偏移估计 |
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| 引用本文： | 李伟华,章蓓蕾,吴伟陵. OFDM系统定时与频率偏移估计[J]. 北京邮电大学学报, 2004, 27(1): 36-39 |
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| 作者姓名： | 李伟华 章蓓蕾 吴伟陵 |
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| 作者单位： | 北京邮电大学信息工程学院, 北京100876 |
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| 摘 要： | 在分析现有算法的基础上,提出了一种新的算法,并对其进行了仿真。仿真结果表明,无论是在多径信道还是在AWGN信道,该算法的定时估计和频率偏移估计的均方差都要优于最大似然算法和“集相关”算法。
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| 关 键 词： | 后三代移动通信系统 定时恢复 频率偏移估计 |
| 文章编号： | 1007-5321(2004)01-0036-04 |
| 收稿时间： | 2002-09-12 |
| 修稿时间： | 2002-09-12 |
Timing Recovery and Frequency Offset Estimation for OFDM System |
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| LI Wei-hua,ZHANG Bei-lei,WU Wei-ling. Timing Recovery and Frequency Offset Estimation for OFDM System[J]. Journal of Beijing University of Posts and Telecommunications, 2004, 27(1): 36-39 |
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| Authors: | LI Wei-hua ZHANG Bei-lei WU Wei-ling |
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| Affiliation: | Information Engineering School, Beijing University of Posts and Telecommunications, Beijing 100876, China |
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| Abstract: | OFDM is sensitive to timing recovery and frequency offset estimation, current non-data-aided estimation methods don't work well on multipath channel. Based on the analysis of the current methods, a new method is proposed and simulated. The simulation results show that the mean square error of the timing and frequency offset estimation for proposed method is superior to that of the maximum likelihood and ensemble correlation methods. |
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| Keywords: | beyond 3G mobile systems timing recovery frequency offset estimation |
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