| OFDM系统迭代相位噪声补偿算法 |
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| 引用本文： | 吴皓威,杨士中,欧静兰,杨力生.OFDM系统迭代相位噪声补偿算法[J].华南理工大学学报(自然科学版),2011(10):26-31. |
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| 作者姓名： | 吴皓威 杨士中 欧静兰 杨力生 |
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| 作者单位： | 重庆大学通信与测控中心;重庆大学通信工程学院; |
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| 基金项目： | 重庆市科技攻关计划项目(CSTC2009AB2167) |
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| 摘 要： | 为补偿正交频分复用(OFDM)系统中本振相位噪声引起的干扰,提出了一种基于公共相位误差(CPE)估计值插值的迭代相位噪声估计与均衡算法.该算法利用相邻符号间相位噪声的缓变特性,对CPE估计值进行插值,以获得相位噪声估计；将此相位噪声估计结果作为迭代过程相位噪声的初始值,通过多次迭代进行相位噪声与数据符号的联合估计,从而...
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| 关 键 词： | 正交频分复用 迭代 相位噪声 公共相位误差 均衡 |
Iterative Algorithm for Phase-Noise Compensation in OFDM Systems |
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| Wu Hao-wei Yang Shi-zhong Ou Jing-lan Yang Li-sheng.Iterative Algorithm for Phase-Noise Compensation in OFDM Systems[J].Journal of South China University of Technology(Natural Science Edition),2011(10):26-31. |
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| Authors: | Wu Hao-wei Yang Shi-zhong Ou Jing-lan Yang Li-sheng |
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| Institution: | Wu Hao-wei1 Yang Shi-zhong1 Ou Jing-lan2 Yang Li-sheng1(1.Center of Communication and Tracking Telemetering and Command,Chongqing University,Chongqing 400044,China,2.College of Communication Engineering,China) |
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| Abstract: | In order to compensate the interference from the phase noise(PHN) of local oscillators in orthogonal frequency division multiplexing(OFDM) systems,an iterative algorithm for PHN estimation and equalization is proposed based on the interpolation of estimated common phase error(CPE).In this algorithm,based on the slow-going characteristic of PHN between neighbor symbols,PHN is estimated by acquiring the interpolation of the CPE estimation.Then,with the estimated PHN as the initial value,the iterative estimati... |
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| Keywords: | orthogonal frequency division multiplexing iteration phase noise common phase error equalization |
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