| 基于循环平稳二阶统计量的SUB-CMOE盲均衡算法 |
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| 引用本文： | 郭建华,张立毅,赵菊敏,李灯熬.基于循环平稳二阶统计量的SUB-CMOE盲均衡算法[J].计算机工程与设计,2008,29(24). |
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| 作者姓名： | 郭建华 张立毅 赵菊敏 李灯熬 |
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| 作者单位： | 太原理工大学,信息与通信工程系,山西太原030024 |
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| 基金项目： | 山西省青年科学基金项目
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| 摘 要： | 提出了一种新的利用循环二阶统计量估计信道的盲均衡算法.通过对信道输出信号进行过采样,建立单输入多输出(single input multiple output,SIMO)信道模型.传统的约束最小输出能量算法(constrained minimum output energy algorithm,CMOE)只研究了理想的无噪声状态,不考虑噪声对信道的影响.然而实际中噪声是不可避免的.为了使得约束最小能量算法可以适用于有噪声环境,利用子空间算法来消除噪声对算法的影响.仿真结果表明本算法可以克服噪声对信道的影响,收敛速度快.
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| 关 键 词： | 盲均衡 过采样 循环平稳 二阶统计量 子空间 最小输出能量算法 |
SUB-CMOE blind equalization algorithm using second-order statistics and being based on Cyclostationarity theory |
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| GUO Jian-hua,ZHANG Li-yi,ZHAO Ju-min,LI Deng-ao.SUB-CMOE blind equalization algorithm using second-order statistics and being based on Cyclostationarity theory[J].Computer Engineering and Design,2008,29(24). |
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| Authors: | GUO Jian-hua ZHANG Li-yi ZHAO Ju-min LI Deng-ao |
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| Affiliation: | GUO Jian-hua,ZHANG Li-yi,ZHAO Ju-min,LI Deng-ao(College of Information , Communication Engineering,Taiyuan University of Technology,Taiyuan 030024,China) |
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| Abstract: | A new blind equalization algorithm using second-order statistics and being based on Cyclostationarity theory is proposed.The equalization of the single input multiple output system which can be obtained by fractionally spaced sampling.Discussions on the traditional constrained minimum output energy algorithm are only in ideal condition without considering the effect of noise.But noise is everywhere.Noise is eliminated using subspace,so constrained minimum output energy algorithm can work in bad condition.Re... |
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| Keywords: | blind equalization cyclostationarity oversampling second-order statistic subspace CMOE |
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