| 过抽样OFDM信号的周期平稳特性分析 |
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| 引用本文： | 苏凯雄,郭里婷.过抽样OFDM信号的周期平稳特性分析[J].福州大学学报(自然科学版),2009,37(5). |
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| 作者姓名： | 苏凯雄 郭里婷 |
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| 作者单位： | 福州大学物理与信息工程学院; |
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| 基金项目： | 福建省自然科学基金资助项目(2009J05144); 福建省教育厅科研资助项目(JB06063); 福州大学人才基金资助项目(XRC-0641) |
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| 摘 要： | 基于无线移动衰落信道下的OFDM系统传输模型和信号周期平稳特性理论,通过计算接收序列的周期自相关函数,证明了过抽样的OFDM系统接收序列的周期平稳特性,为基于周期平稳特性的信号处理算法设计提供理论支持.理论分析和仿真结果显示,衰落信道下,过抽样的OFDM系统接收序列具有周期平稳特性,其循环周期为一个OFDM符号长度的Q倍,其中Q是过抽样因子.
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| 关 键 词： | 过抽样 OFDM序列 周期平稳特性 无线移动信道 |
Researches on the cyclostationarity of over-sampled OFDM siganls |
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| SU Kai-xiong,GUO Li-ting.Researches on the cyclostationarity of over-sampled OFDM siganls[J].Journal of Fuzhou University(Natural Science Edition),2009,37(5). |
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| Authors: | SU Kai-xiong GUO Li-ting |
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| Institution: | SU Kai-xiong,GUO Li-ting(College of Physics and Information Engineering,Fuzhou University,Fuzhou,Fujian 350108,China) |
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| Abstract: | Cyclostationarity of the over-sampled OFDM signal is examined based on the model of OFDM systems in the wireless communication channel and the theory of cyclostationarity.Mathematical deduction and simulation results are both shown that the received over-sampled OFDM sequence is cyclostationary in the wireless communication channel.And its cyclic period is Q times the OFDM symbol length. |
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| Keywords: | over-sampled OFDM sequence cyclostationarity wireless communication channel |
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