| 相位噪声对数字电视QAM系统的影响分析 |
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| 引用本文： | 熊邦宏,李扬,朱红雷,邓涪军.相位噪声对数字电视QAM系统的影响分析[J].电子质量,2008(11). |
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| 作者姓名： | 熊邦宏 李扬 朱红雷 邓涪军 |
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| 作者单位： | 广东工业大学信息工程学院,广东,广州,510006 |
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| 摘 要： | 相位噪声是QAM系统的一个重要指标参数,它对QAM系统的性能有着严重的影响。文中首先介绍了相位噪声的概念、表征方法和对信号频谱的影响。重点详述了相位噪声对QAM系统的影响,从均方值的角度来考究相位噪声对系统的劣化。
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| 关 键 词： | 相位噪声 QAM 阿伦方差 相对单边带功率谱 |
Analysis of the Effect of Phase Noise on QAM System in Digital TV System |
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| Xiong Ban-ghong,LI Yang,Zhu Hong-lei,Deng Qing-jun.Analysis of the Effect of Phase Noise on QAM System in Digital TV System[J].Electronics Quality,2008(11). |
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| Authors: | Xiong Ban-ghong LI Yang Zhu Hong-lei Deng Qing-jun |
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| Abstract: | phase noise is a important technology parament in QAM system,and has a very bad effect on the system .the beginning part of article introduce the concept and the expression method of characterizing phase noise,and analyse its effect on the original signal spectrum. as a emphasis part, it is described detailedly the impact of phase noise on the QAM system, a study is done on the phase noise deteriorating the performance of system at the standpoint of meansquare value of phase noise. |
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| Keywords: | phase noise QAM Allen variance relative single side-band power spectrum |
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