| OFDM系统中频率同步算法的研究 |
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| 引用本文： | 李松江.OFDM系统中频率同步算法的研究[J].数字社区&智能家居,2009(25). |
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| 作者姓名： | 李松江 |
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| 作者单位： | 贵州大学计算机科学与信息学院; |
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| 摘 要： | OFDM是B3G乃至4G系统中的一种关键技术。它的最大优点是对抗频率选择性衰落,同时又提高了频谱利用率。本文首先介绍了多载波传输与OFDM之间的关系以及OFDM系统的基本原理,接着对OFDM系统中的同步技术和载波同步算法进行了分析,最后对基于训练符号的时域相关算法做了详细的研究。
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| 关 键 词： | 正交频分复用 同步 频偏估计 训练序列 IEEE802.11a |
Study on Frequency Synchronization Algorithm of OFDM System |
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| LI Song-jiang.Study on Frequency Synchronization Algorithm of OFDM System[J].Digital Community & Smart Home,2009(25). |
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| Authors: | LI Song-jiang |
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| Affiliation: | LI Song-jiang (School of Computer Science , Information,Guizhou University,Guiyang 550025,China) |
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| Abstract: | OFDM is a key technology in B3G and even in 4G system.The great advantage of OFDM is that it is robust against frequency selective fading and that it improves frequency utilizing rate simultaneously.At first the paper introduces the relationship between multi-carrier transmission and OFDM,as well as basic principle of OFDM system,and then synchronization techniques and carrier synchronization algorithms in OFDM systems are analyzed.At last the paper makes a detailed study of time-domain correlation algorith... |
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| Keywords: | OFDM synchronization frequency offset training sequences IEEE 802 11a |
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