| 最小均方误差判决和自适应判决反馈均衡器的设计实现 |
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| 引用本文： | 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. |
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| 作者姓名： | 朱小刚 诸鸿文 戎蒙恬 |
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| 作者单位： | 上海交通大学电子工程系, |
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| 摘 要： | 介绍了基于FIR和IIR的采用最小均方误差（MMSE）算法的判决反馈均衡器，针对该算法的缺点提出了两种采用自适应算法的判决反馈均衡器；LMS算法和CMA算法，对这些算法的仿真表明了各自的性能和优缺点，在此基础上提出了一种改进的混合算法，仿真表明，该算法只需要少量的训练序列，性能比CMA算法有明显的改进。
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| 关 键 词： | 判决反馈均衡器 常数模算法 波特间距均衡 分段均衡 最小均方误差算法 自适应算法 无线数字通信 |
| 文章编号： | 1006-2467(2001)06-0897-05 |
| 修稿时间： | 2000年6月20日 |
Design Realization of Adaptive andBlind Adaptive Decision Feedback Equalizer |
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| ZHU Xiao gang,ZHU Hong wen,RONG Meng tian.Design Realization of Adaptive andBlind Adaptive Decision Feedback Equalizer[J].Journal of Shanghai Jiaotong University,2001,35(6):897-901. |
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| Authors: | ZHU Xiao gang ZHU Hong wen RONG Meng tian |
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| Abstract: | This paper introduced the design realization of FIR and IIR based decision feedback equalizer which adopts MMSE algorithm. Aimed at its defaults, two adaptive decision feedback equalizers are brought forward, one adopts the LMS algorithm and the other adopts the CMA algorithm. The detailed simulation results of these algorithms were given and their performance was analyzed. Some improvement to these two algorithms was made by putting forward a hybrid algorithm. The simulation result illustrates it operates better than CMA algorithm. |
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| Keywords: | decision feedback equalizer constant modulus algorithm error propagation Baud spaced equalization fractionally spaced equalization symbol estimation error rate |
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