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相位噪声对多天线QAM性能影响分析 被引量：2

Analysis on Effect of Carrier Phase Noise on Performance of Multi-antenna QAM Systems
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摘要 正交幅度调制系统(QAM)对载波的相位噪声非常敏感,多天线技术的使用可以提高通信系统的性能。对QAM系统在当今通信系统中的应用及相位噪声对QAM系统性能影响进行介绍,对多天线QAM系统受相位噪声影响进行了理论分析及仿真验证,并给出了闭式误差向量幅度(EVM)表达式。给出的理论公式及仿真结果对多天线QAM系统相位噪声指标的确定及系统性能分析具有参考意义。 Multi-level quadrature amplitude modulation （QAM） is very sensitive to carrier phase noise. Muhi-antenna technique can be used to retain the system＇s performance. In this paper, the extensive application of QAM and the effect caused by phase noise are introduced. The analysis and simulation results are provided to illustrate the effect of phase noise on multi-antenna QAM systems. Besides, a close-form expression of the error vector magnitude （EVM） is provided, The analysis and simulation results can be used in the determination of phase noise specifications of multi-antenna QAM systems and the optimization of system performance.
作者 王学斌 李会勇 安琦 何子述
机构地区 电子科技大学电子工程学院
出处 《无线电通信技术》 2012年第1期46-47,80,共3页 Radio Communications Technology
关键词 相位噪声 正交振幅调制 多天线 误码率 phase noise QAM multi-antenna BER
分类号 TN914 [电子电信—通信与信息系统]
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参考文献5

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同被引文献20

  • 1李元杰,杨绿溪,何振亚.基于隐训练序列的信道估计与跟踪[J].通信学报,2004,25(12):1-7. 被引量：20
  • 2陆震,葛建华,王勇.基于PN序列的MIMO-OFDM系统信道估计[J].华中科技大学学报（自然科学版）,2007,35(4):44-47. 被引量：7
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无线电通信技术
2012年 第1期

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