| 一种分数间隔MMSE块均衡器 |
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| 引用本文： | 陈雪冰,YANG Xi-gen,沈忠良.一种分数间隔MMSE块均衡器[J].系统仿真学报,2008,20(7):1786-1790. |
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| 作者姓名： | 陈雪冰 YANG Xi-gen 沈忠良 |
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| 作者单位： | 1. 解放军理工大学通信工程学院研四队,江苏,南京,210007
2. 解放军理工大学通信工程学院无线通信系,江苏,南京,210007 |
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| 摘 要： | 针对符号间隔块均衡器有着对定时误差非常敏感的缺点,提出了一种分数间隔MMSE块均衡器,包括线性均衡器和判决反馈均衡器.该均衡器可以用于非理想信道块通信系统中消除码间串扰,也可以应用在码分多址通信中进行联合检测.计算机仿真结果表明,与传统MMSE块均衡器相比,该均衡器在计算复杂度增加极小的情况下获得了较大的性能提升,而且对定时误差不敏感.
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| 关 键 词： | 块均衡器 分数间隔 线性均衡器 判决反馈均衡器 |
Fractionally-Spaced Minimum Mean-Square-Error Block Equalizer |
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| CHEN Xue-bing,YANG Xi-gen,SHEN Zhong-liang.Fractionally-Spaced Minimum Mean-Square-Error Block Equalizer[J].Journal of System Simulation,2008,20(7):1786-1790. |
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| Authors: | CHEN Xue-bing YANG Xi-gen SHEN Zhong-liang |
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| Abstract: | A block equalizer is suitable to overcome the intersymbol interference(ISI) for a block transmission system,in which the information symbols are arranged in the form of blocks separated by known symbols.It also can be used to perform joint detection for CDMA systems.Concerning that symbol-spaced block equalizer is sensitive to timing error,a fractionally-spaced Minimum-Mean-Square-Error block equalizer(FS-MMSE-BE) was proposed.Both linear equalizer(LE) and decision-feedback equalizer(DFE) algorithms were given.Performance simulations and comparisons were also presented The results show that they perform better than conventional block equalizers,while the complexity increasing is very small.Moreover,the proposed equalizer is not sensitive to timing error. |
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| Keywords: | MMSE |
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