改善判决反馈均衡器性能的一种新方法被引量：3

A New Method to Improve the Performance of a Decision Feedback Equalizer

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摘要判决反馈均衡器是一种算法复杂度较低、性能也较好、并在实际中得到广泛应用的均衡器。它的一个内在的缺陷是错误判决结果反馈所引起的性能损失。利用判决反馈均衡器中前向滤波器输出中的信息,提出了一种改善判决反馈均衡器性能的方法,并给出改进后判决反馈均衡器的结构和实现方法。仿真结果证明了该方法的有效性。

作者张玉良吴伟陵田宝玉

机构地区北京邮电大学

出处《无线电通信技术》 2003年第5期22-24,共3页 Radio Communications Technology

关键词判决反馈均衡器最大似然序列估计 Bayesian判决准则前向滤波器

参考文献7

1Y H Gu and T L Ngoc. Adaptive Combined DFE/MLSE Techniques for ISI Channels [ J ]. IEEE Transactions on Commtmications, 1996, (7) : 847 - 857.
2G D Fomey, Jr. Maximum-likelihood Sequence Estimation of Digital Sequences in the Presence of Intersymbol Interference[J]. IEEE Transaction on Information Theory, 1970, (3):363 - 578.
3W U Lee and F S HilI.A Maximum-likelihood Sequence Estimator with Decision-feedback Equalization [J]. IEEE Transactions on Communications, 1977, (9) :971 - 979.
4K Abend, and B D Fritchman. Statistical Detection for Communication Channels with Intersymbol Interference [ J ]. Proc IEEE, 1970, (5) :779 - 785.
5S Chen, S Mclaughlin, B Muigrew and P M Grant. Adaptive Bayesian Decision Feedback Equalizer for Dispersive Mobile Radio Channels [ J ]. IEEE Transactions on Communications,1995, (5) : 1937 - 1946.
6S Chan, G J Gibson and C F N Cowan. Adaptive Channel Equalization Using a Polynomial Perceptron Structure [ J ]. IEE Proceedings, 1990(5), 257 - 264.
7J G Proakis. Digital Communications. New York: McGraw-Hill,1995.

1PROAKIS J G．数字通信[M]．力军，张宗橙，郑宝玉，等译．北京：电子工业出版社，2004：477—487．
2GITLIN R D, MEADORS H C J. Center-Tap Tracking Algorithms for Timing Recovery [ J]. AT&T TECHNICAL JOURNAL, 1987,66(6) :63 - 78.
3TRANTER W H, SHANMUGAN K S, RAPPAPORT T S.通信系统仿真原理与无线应用[M]．肖明波，杨光松译．北京：机械工业出版社，2004：33—55．
4Godard D.Self-recovering equalization and carrier tracking in two dimensional data communication systems [J].IEEE Transaction on Communication, 1980,28( 11 ): 1867-1875.
5Proakis J G.Adaptive equalization techniques for acoustic telemetry channels[ J ].IEEE J.Oceanic.Eng., 1991,16( 1 ) : 21-31.
6WidrowHoffBME,AdaptiveJR.Switching.Circuits[].IREWESCONCONVRec.
7WattersonCC,JuroshekJR,BensemaWD.ExpermentalConfirmationofanHFChannelModel[].IEEETransCommTech.1970
8朱小刚,诸鸿文,戎蒙恬.最小均方误差判决和自适应判决反馈均衡器的设计实现[J].上海交通大学学报,2001,35(6):897-901. 被引量：12
9徐明远,林华芳,邱恭安.基于LMS算法的自适应均衡系统的仿真研究[J].系统仿真学报,2003,15(2):176-178. 被引量：24

无线电通信技术

2003年第5期

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