| OFDM定时同步算法 |
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| 引用本文： | 李彩霞,郑晓坤,韩晓霞,田晓燕,黄永平.OFDM定时同步算法[J].河北大学学报(自然科学版),2011,31(6):653-657. |
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| 作者姓名： | 李彩霞 郑晓坤 韩晓霞 田晓燕 黄永平 |
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| 作者单位： | 河北大学电子信息工程学院,河北保定,071002 |
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| 基金项目： | 河北省科技厅基金资助项目(10213560); 河北大学青年基金项目(2006Q24) |
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| 摘 要： | 为快速准确地对OFDM系统进行定时同步,对CAZAC序列进行研究,设计了一种包括3个OFDM符号的训练序列帧结构,采用接收到的序列和本地序列相关的方法进行粗略定时和精定时,提出并仿真了一种OFDM定时同步新算法,该算法在低信噪比下,多径衰落信道中能取得良好的效果.
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| 关 键 词： | OFDM CAZAC序列 定时同步 训练序列 |
Timing Synchronization Algorithm of OFDM |
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| LI Cai-xia,ZHENG Xiao-kun,HAN Xiao-xia,TIAN Xiao-yan,HUANG Yong-ping.Timing Synchronization Algorithm of OFDM[J].Journal of Hebei University (Natural Science Edition),2011,31(6):653-657. |
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| Authors: | LI Cai-xia ZHENG Xiao-kun HAN Xiao-xia TIAN Xiao-yan HUANG Yong-ping |
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| Institution: | LI Cai-xia,ZHENG Xiao-kun,HAN Xiao-xia,TIAN Xiao-yan,HUANG Yong-ping(Department of Electronic and Information Engineering,Hebei University,Baoding 071002,China) |
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| Abstract: | In order to timing synchronization quickly and accurately,the sequence of CAZAC was studied,a kind of training sequence frame structure including three OFDM symbols was designed by correlation computing of local training sequence and the received sequence to detect the correlation peaks,then the rough timing and precise timing.A new OFDM timing synchronization algorithm was proposed and simulated in low SNR,multipath fading channel and a good effect could be obtained. |
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| Keywords: | OFDM CAZAC sequence timing synchronization training sequence |
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