| 正交频分复用系统中的频域插入导频算法 |
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| 引用本文： | 曾浩,ZHU Yi-yi,李宜佳,LIU Di-jun.正交频分复用系统中的频域插入导频算法[J].通信技术,2008,41(8). |
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| 作者姓名： | 曾浩 ZHU Yi-yi 李宜佳 LIU Di-jun |
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| 作者单位： | 重庆邮电大学,重庆,400065 |
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| 摘 要： | OFDM(正交频分复用)技术是第三代、第四代移动通信的关键技术之一,而移动信道是极为复杂的一种信道,信号通过无线信道时,会遭受各种衰落的影响,信道估计技术就是使得信道对输入信号的影响减至最小化的估计算法.在介绍了OFDM系统相干检测下信道估计方法的基础上,着重讨论和仿真了利用导频插入的方式对OFDM系统进行信道估计的算法.
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| 关 键 词： | OFDM 相干检测 信道估计 导频 |
Interpolation Pilot Algorithm of Frequency Domain in OFDM System |
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| ZENG Hao,ZHU Yi-yi,LI Yi-jia,LIU Di-jun.Interpolation Pilot Algorithm of Frequency Domain in OFDM System[J].Communications Technology,2008,41(8). |
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| Authors: | ZENG Hao ZHU Yi-yi LI Yi-jia LIU Di-jun |
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| Affiliation: | ZENG Hao,ZHU Yi-yi,LI Yi-jia,LIU Di-jun(Chongqing University of Posts Telecommunications,Chongqing 400065,China,Southwest Communication Institute of China Electronic Technology Corporation,Chengdu Sichuan 610041,China) |
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| Abstract: | OFDM(orthogonal Frequency Division Multiplexing) is the key technology of the 3rd and 4th generation mobile communication systems.The transfer channel is very complex.The signal would fade as it passes through the wireless transfer channel.The channel estimation algorithm is for minimizing the influence of the transfer channel on the input signal.In the light of the basic channel estimation,the mathematical analysis and simulation is conducted to investigate the channel estimation for the OFDM system by usi... |
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| Keywords: | OFDM coherent detection channel estimation pilot |
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