| 基于新拟牛顿法的自适应均衡技术 |
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| 引用本文： | 时伟.基于新拟牛顿法的自适应均衡技术[J].北京邮电大学学报,2012,35(3):83-86. |
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| 作者姓名： | 时伟 |
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| 作者单位： | 中南大学航空航天学院,长沙410083;中南大学粉末冶金研究院,长沙410083 |
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| 基金项目： | 湖南省自然科学基金，中南大学中央高校基本科研业务费专项项目，湖南省博士后科研专项计划项目 |
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| 摘 要： | 为了解决现代通信信道的码间干扰问题,提出了一种基于新拟牛顿法的自适应均衡算法,该算法用对称正定Hesse矩阵代替传统LMS/Newton法自相关矩阵的逆估计,克服了传统自相关矩阵估计误差对算法收敛性能的影响.信道均衡仿真结果表明,该算法具有较快的收敛速度和较低的误码率.
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| 关 键 词： | 最小均方算法 新拟牛顿法 自适应均衡 误码率 |
| 收稿时间： | 2011-03-01 |
A New Adaptive Equalization Aimed at the Inter-Symbol Interference Based on New Quasi-Newton Algorithm |
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| SHI Wei.A New Adaptive Equalization Aimed at the Inter-Symbol Interference Based on New Quasi-Newton Algorithm[J].Journal of Beijing University of Posts and Telecommunications,2012,35(3):83-86. |
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| Authors: | SHI Wei |
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| Affiliation: | 1School of Aeronautics and Astranautics, Central South University, Changsha 410083, China;
2Powder Metallurgy Research Institute, Central South University, Changsha 410083, China |
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| Abstract: | Solving the problem of algorithm in modern communication channel,a new method of quasi-Newton least mean square adaptive equalization is proposed.By replacing inverse matrix calculation of LMS/Newton correlation function by symmetric positive-definite Hesse matrix,the proposed algorithm reduces the influence of traditional auto-correlation matrix estimate error for the algorithm convergence.Equalization simulation shows that higher convergence speed and lower bit error rate are obtained. |
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| Keywords: | least mean square algorithm new quasi-Newton algorithm adaptive equalization bit error rate |
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