| 宽带HFC网络回传通路噪声抑制的研究 |
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| 引用本文： | 景新幸,段晓雪,周萍.宽带HFC网络回传通路噪声抑制的研究[J].电子学报,2002,30(2):153-155. |
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| 作者姓名： | 景新幸 段晓雪 周萍 |
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| 作者单位： | 1. 华中科技大学光电子系,湖北武汉 430074;2. 桂林电子工业学院,广西桂林 541004 |
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| 摘 要： | 在HFC网络回传通路中有近70%的噪声是输入噪声,把输入噪声抽象为一个窄带干扰模型,对其采取非线性抑制措施,构造了一个非线性窄带干扰抑制器,在SCDMA系统下做了仿真;把非线性的DLMS2和DRLS2推广到QPSK调制系统,对其各项性能进行了仿真研究.
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| 关 键 词： | HFC回传系统 输入噪声 非线性 |
| 文章编号： | 0372-2112(2002)02-0153-03 |
| 收稿时间： | 2001-03-19 |
Study on Suppressing Noise on Upstream Channel in HFC Network |
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| JING Xin xing ,DUAN Xiao xue ,ZHOU Ping.Study on Suppressing Noise on Upstream Channel in HFC Network[J].Acta Electronica Sinica,2002,30(2):153-155. |
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| Authors: | JING Xin xing DUAN Xiao xue ZHOU Ping |
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| Affiliation: | 1. Department of Optoelectronic Engineering Huazhong University of Science & Technology,Wuhan,Hubei 430074,China;2. Guilin University of Electronic Technology,Guilin,Guangxi 541004,China |
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| Abstract: | Upstream channel noise consist of input noise in about 70%.Abstract the input noise in a model of narrow band interference and take a nonlinear suppression measure.Construct a nonlinear narrow band interference suppresser and simulate in the SCDMA system.Nonlinear DLMS2 and DRLS2 algorithms are extended to QPSK modem system and performances are analyzed. |
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| Keywords: | HFC upstream channel ingress noise nonlinear |
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