| 相位噪声对OFDM系统性能影响分析 |
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| 引用本文： | 岳丽,赵旦峰,徐军.相位噪声对OFDM系统性能影响分析[J].应用科技,2007,34(1):5-8,50. |
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| 作者姓名： | 岳丽 赵旦峰 徐军 |
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| 作者单位： | 哈尔滨工程大学,信息与通信工程学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 作为继CDMA后的又一核心技术，OFDM在各种通信系统中得到了广泛的应用．然而，OFDM系统对相位噪声极其的敏感，会引入共同相位误差CPE（common phase error）和载波间干扰ICI（intercarrier interference），这将极大的降低系统性能．基于维纳相位噪声模型，分析了相位噪声对OFDM系统性能影响，并分别探讨了CPE和ICI对系统性能的影响，重点分析了ICI的相关性质，为OFDM系统中相位噪声消除技术的研究及系统参数设置提供理论参考．
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| 关 键 词： | 相位噪声 共同相位误差CPE 载波间干扰ICI |
| 文章编号： | 1009-671X（2007）01-0005-05 |
| 收稿时间： | 2006-10-08 |
| 修稿时间： | 2006-10-08 |
Analysis of effect of phase noise on the OFDM system performance |
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| YUE Li,ZHAO Dan-feng,XU Jun.Analysis of effect of phase noise on the OFDM system performance[J].Applied Science and Technology,2007,34(1):5-8,50. |
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| Authors: | YUE Li ZHAO Dan-feng XU Jun |
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| Institution: | College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China |
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| Abstract: | As another key technology after CDMA,OFDM has been adopted widely in many communication systems.However,the OFDM systems are very sensitive to the phase noise,causing a random rotation,called CPE(Common Phase Error), as well as ICI(Intercarrier Interference),which will degrade the system performance significantly.This paper analyzes the effect of the phase noise on OFDM systems based on the Wiener phase noise model.The effect of CPE and ICI is discussed respectively,and the properties of ICI are discussed in detail. |
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| Keywords: | OFDM |
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