| 一种双模式盲均衡算法 |
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| 引用本文： | 潘立军,刘泽民.一种双模式盲均衡算法[J].北京邮电大学学报,2005,28(3):49-51. |
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| 作者姓名： | 潘立军 刘泽民 |
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| 作者单位： | 北京邮电大学 电信工程学院， 北京 100876 |
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| 摘 要： | 根据改进的恒模算法(MCMA)具有冷启动能力和判决导引最小均方误差(DD-LMS)算法剩余误差小的特性，对一种双模式盲均衡算法进行了研究. 该算法采用MCMA使眼图睁开，然后切换到DD-LMS以减小剩余误差. 算法根据判决条件在MCMA与DD-LMS之间自动切换. 均衡的输出可以不经过相位恢复直接由判决器判决，从而简化了系统设计，提高了系统效率.
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| 关 键 词： | 盲均衡 均方误差 误符号率 |
| 文章编号： | 1007-5321(2005)03-0049-03 |
| 修稿时间： | 2004年6月16日 |
A Dual-Mode Blind Equalization Algorithm |
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| PAN Li-jun,LIU Ze-min.A Dual-Mode Blind Equalization Algorithm[J].Journal of Beijing University of Posts and Telecommunications,2005,28(3):49-51. |
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| Authors: | PAN Li-jun LIU Ze-min |
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| Affiliation: | School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China |
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| Abstract: | According to the modified constant modulus algorithm (MCMA)'s cold start ability and decision directed least mean square (DD-LMS) algorithm's small residual error property, a dual-mode blind equalization algorithm was introduced. With MCMA, the channel eye diagram would be opened and then switched to DD-LMS algorithm to decrease the residual error after convergence. The algorithm could be switched between MCMA and DD-LMS automatically according to the decision rule. (Equalization) output would be sent directly to the decision device without phase recovery operation so that it can simplify system's design and promote system's efficiency. |
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| Keywords: | blind equalization mean square error symbol error rate |
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