| 基于二阶循环统计量的盲均衡算法 |
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| 引用本文： | 陈振江,张立毅,赵菊敏,李灯熬.基于二阶循环统计量的盲均衡算法[J].计算机工程与设计,2008,29(16). |
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| 作者姓名： | 陈振江 张立毅 赵菊敏 李灯熬 |
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| 作者单位： | 太原理工大学信息工程学院,山西,太原,030024 |
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| 摘 要： | 提出一种新的基于循环二阶统计量的盲均衡算法.通过对信道输出信号进行过采样,建立单输入多输出信道模型.由于过采样等效信道矩阵具有特殊结构,使得仅仅根据零延迟时的协方差矩阵所包含的信息就能实现信道估计,根据不同延迟下的协方差矩阵也可求得不同时延的均衡器矩阵,然后用最小均方误差MMSE准则来优化均衡器得到最佳延迟协方差矩阵.仿真结果表明了该算法的有效性.
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| 关 键 词： | 过采样 循环平稳 二阶统计量 单输入多输出模型 盲均衡 |
Blind equalization algorithm based on second-order statistics |
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| CHEN Zhen-jiang,ZHANG Li-yi,ZHAO Ju-min,LI Den-gao.Blind equalization algorithm based on second-order statistics[J].Computer Engineering and Design,2008,29(16). |
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| Authors: | CHEN Zhen-jiang ZHANG Li-yi ZHAO Ju-min LI Den-gao |
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| Affiliation: | CHEN Zhen-jiang,ZHANG Li-yi ,ZHAO Ju-min,LI Deng-ao(College of Information Engineering,Taiyuan University of Technology,Taiyuan 030024,China) |
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| Abstract: | A new blind equalization algorithm based on the second-order cycle statistics is presented.The equalization of the single input multiple output system which can be obtained by fractionally spaced sampling.Due to oversampling,the equivalent channel matrix pos-sesses a particular structure which enables us to estimate the channel based only on the information contained in the covariance matrix at zero delay.According to different delay the covariance matrix to seek delay equalizer different matrix,then a mini... |
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| Keywords: | oversampling cyclostationarity second-order statistic single input multiple output(SIMO) model blind equalization |
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