| OFDM系统剩余载波频偏估计算法性能比较 |
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| 引用本文： | 行江涛,行明顺. OFDM系统剩余载波频偏估计算法性能比较[J]. 北京电子科技学院学报, 2009, 17(4): 49-54 |
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| 作者姓名： | 行江涛 行明顺 |
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| 作者单位： | 美国3DSP公司西安代表处,陕西,西安,710075;解放军西安通信学院,陕西,西安,710106 |
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| 摘 要： | 针对剩余载波频率偏移对OFDM系统性能的影响,分析了OFDM系统中常见的三种导频辅助剩余载波频率偏移的估计算法：SK算法、WJJW算法和SYJW算法,并比较了它们在多径衰落信道环境下的性能。仿真表明,SYJW算法的估计精度最高,在信道信噪比为20dB情况下,比SK算法高8倍,比WJJ算法高0.6倍。
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| 关 键 词： | 正交频分复用 多径衰落信道 剩余载波频偏 导频辅助 |
Performance Comparison of of DM Systems' RCFO Estimation Methods for OFDM Systems |
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| WING Jiang-tao,XING Ming-shun. Performance Comparison of of DM Systems' RCFO Estimation Methods for OFDM Systems[J]. Journal of Beijing Electronic Science & Technology Institute, 2009, 17(4): 49-54 |
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| Authors: | WING Jiang-tao XING Ming-shun |
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| Affiliation: | 1.American 3DSP Corporation Xi＇an Office,Xi＇an Shaanxi 710075,China;2.Xi＇an Communications Institute;Xi＇an Shaanxi 710106,China) |
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| Abstract: | Aiming at the effect of residual carrier frequency offset （RCFO） to OFDM systems,the paper analyzes three common estimation methods of pilot assisted （PTA） RCFO：SK method,WJJ method and SYJW method,and compares their function in multi-path fading channel.The result shows that the SYJW method performs best,and the estimate precision is 8 times than SK method and 0.6 times than WJJ method under the20dB＇ CSNR. |
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| Keywords: | OFDM multi-path fading channel RCFO PTA |
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