| 基于分数阶傅里叶变换的正交频分复用系统同步分析 |
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| 引用本文： | 王永学,陈芳炯,韦岗.基于分数阶傅里叶变换的正交频分复用系统同步分析[J].电子学报,2006,34(9):1690-1693. |
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| 作者姓名： | 王永学 陈芳炯 韦岗 |
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| 作者单位： | 深圳职业技术学院电信学院,广东深圳,518055;华南理工大学电子与信息学院,广东广州,510640 |
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| 基金项目： | 国家自然科学基金（No.60402014）;广东省自然科学基金（No.31390） |
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| 摘 要： | 在基于分数阶傅里叶变换的正交频分复用系统中,分析并讨论了载波频率误差、采样频率误差以及时间同步误差对系统性能的影响,并与传统的基于普通傅里叶变换的正交频分复用系统的同步性能进行了比较.仿真结果表明:当系统参数选择适当时,基于分数阶傅里叶变换的正交频分复用系统在载波频率误差方面具有较好的同步性能.
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| 关 键 词： | 正交频分复用 分数阶傅里叶变换 同步 |
| 文章编号： | 0372-2112（2006）09-1690-04 |
| 收稿时间： | 2005-05-16 |
| 修稿时间： | 2005-05-162006-02-18 |
Synchronization Analysis of OFDM System Based on Fractional Fourier Transform |
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| WANG Yong-xue,CHEN Fang-jiong,WEI Gang.Synchronization Analysis of OFDM System Based on Fractional Fourier Transform[J].Acta Electronica Sinica,2006,34(9):1690-1693. |
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| Authors: | WANG Yong-xue CHEN Fang-jiong WEI Gang |
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| Affiliation: | 1. College of Electronics and Information,Shenzhen Polytechnic,Shenzhen,Guangdong 518055,China;2. College of Electronics and Information,South China University of Technology,Guangzhou,Guangdong 510640,China |
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| Abstract: | The synchronization performance of OFDM system based on fractional Fourier transform is studied. The influences of the carder frequency offset, sample frequency offset and timing misalignment in the OFDM system with fractional Fourier transform are discussed and compared with traditional OFDM system with normal IFFt/FFT. Simulation results show that the OFDM system based on fractional Fourier transform with appropriate parameter has better synchronization performance when carder frequency offset is discussed. |
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| Keywords: | OFDM fractional Fourier transform synchronization |
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