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稀疏多径信道的T/2间隔CFE均衡器研究

陈韶华 相敬林 石杰

陈韶华, 相敬林, 石杰. 稀疏多径信道的T/2间隔CFE均衡器研究[J]. 电子与信息学报, 2006, 28(6): 1082-1085.
引用本文: 陈韶华, 相敬林, 石杰. 稀疏多径信道的T/2间隔CFE均衡器研究[J]. 电子与信息学报, 2006, 28(6): 1082-1085.
Chen Shao-hua, Xiang Jing-lin, Shi Jie. T/2 Fractionally-Spaced Complete Feedback Equalizer in Wireless Sparse Multi-path Channels[J]. Journal of Electronics & Information Technology, 2006, 28(6): 1082-1085.
Citation: Chen Shao-hua, Xiang Jing-lin, Shi Jie. T/2 Fractionally-Spaced Complete Feedback Equalizer in Wireless Sparse Multi-path Channels[J]. Journal of Electronics & Information Technology, 2006, 28(6): 1082-1085.

稀疏多径信道的T/2间隔CFE均衡器研究

T/2 Fractionally-Spaced Complete Feedback Equalizer in Wireless Sparse Multi-path Channels

  • 摘要: 完全反馈均衡器(Complete Feedback Equalizer, CFE)是判决反馈均衡器(DFE)的改进。该文提出了一种T/2分数间隔稀疏CFE(T/2 Sparse CFE, T/2-SCFE)结构,以避免接收机对于符号定时误差的敏感性,并有效利用长时延扩展多径信道的稀疏性来降低均衡器的复杂度。理论分析与基于实测信道的计算机仿真表明, T/2-SCFE均衡器对符号定时误差保持了稳健性,总体性能优于符号间隔CFE及分数间隔DFE。
  • Fevrier I J, Gelfand S B, et al.. Reduced complexity decision feedback equalization for multipath channels with large delay spreads [J].IEEE Trans. on Commun.1999, 47 (6):927-[2]Kocic M, Brady D, et al..Sparse equalization for real-time digital underwater acoustic communications[C][J].Proc. Oceans95 MTS/IEEE, San Diego, California.1995, vol.3:1417-[3]Berberidis K, Rontogiannis T A, et al.. Efficient block implementation of the DFE [J].IEEE Signal Processing Lett.1998, 5(6):129-[4]Dhahir N A, Sayed A H, et al.. Stable pole-zero modeling of long FIR filters with application to the MMSE-DFE [J].IEEE Trans. on Commun.1997, 45 (5):508-[5]Rontogiannis A A, Berberidis K. Efficient decision feedback equalization for sparse wireless channels [J].IEEE Trans. on Wireless Commun.2003, 2 (3):570-[6]Ariyavistakul S, Greenstein L J. Reduced-complexity equaliza- tion techniques for broadband wireless channels [J].IEEE J. on Select. Areas Commun.1997, 15 (1):5-[7]Ungerboeck G. Fractionally tap-spacing equalizer and consequen-ces for clock recovery in data modems [J].IEEE Trans. on Commun.1976, 24 (8):856-[8]Proakis J G. Digital Communications [M]. Beijing: Publishing House of Electronics Industry, 2002, chap.10, 11.[9]Al-Dhahir.N, Cioffi J MFast computation of channel-estimate based equalizers in packet data transmission [J].. IEEE Trans. on Signal Processing.1995, 43 (11):2462-
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出版历程
  • 收稿日期:  2004-10-18
  • 修回日期:  2005-06-21
  • 刊出日期:  2006-06-19

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