| 基于EVA的改进型盲均衡算法 |
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| 引用本文： | 白自权,李道本. 基于EVA的改进型盲均衡算法[J]. 北京邮电大学学报, 2005, 28(4): 10-13 |
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| 作者姓名： | 白自权 李道本 |
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| 作者单位： | 北京邮电大学,信息工程学院,北京,100876;北京邮电大学,信息工程学院,北京,100876 |
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| 摘 要： | 为解决盲均衡算法中的相位旋转问题，提出了一种基于特征向量算法(EVA)的改进型盲均衡算法，并与EVA算法进行了比较. 新算法通过构造包含信道相位信息的度量解决了EVA算法的相位旋转问题. 仿真结果表明，提出的算法与EVA算法相比在收敛速度方面提高约10%，抗噪声性能提高1?dB，减小残留干扰约10%，而且并未增大运算量.
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| 关 键 词： | 盲均衡 特征向量算法 相位旋转 |
| 文章编号： | 1007-5321（2005）04-0010-04 |
| 收稿时间： | 2004-06-14 |
| 修稿时间： | 2004-06-14 |
An Improved Blind Equalization Algorithm Based on EVA |
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| BAI Zi-quan,LI Dao-ben. An Improved Blind Equalization Algorithm Based on EVA[J]. Journal of Beijing University of Posts and Telecommunications, 2005, 28(4): 10-13 |
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| Authors: | BAI Zi-quan LI Dao-ben |
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| Affiliation: | School of Information Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China |
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| Abstract: | A new blind equalization algorithm based on eigenvector algorithm(EVA) was presented to solve the phase rotation problem by employing metric including phase information of the channel, and a comparison between new algorithm and EVA was also made. Simulation results show that the proposed algorithm will increase convergence rate by 10%, improve anti noise capability by 1?dB, and compress residual intersymbol interference(ISI) by 10% without increasing computational complexity with respect to EVA as well. |
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| Keywords: | blind equalization eigenvector algorithm phase rotation |
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