| 基于实数编码遗传算法的盲信源分离方法 |
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| 引用本文： | 郑鹏,何同林,刘郁林,彭启琮,尤春艳.基于实数编码遗传算法的盲信源分离方法[J].电子科技大学学报（自然科学版）,2006,35(3):295-297,327. |
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| 作者姓名： | 郑鹏 何同林 刘郁林 彭启琮 尤春艳 |
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| 作者单位： | 重庆通信学院DSP实验室,重庆,沙坪坝区,400035;重庆工程职业技术学院计算机系,重庆,沙坪坝区,400035;电子科技大学通信与信息工程学院,成都,610054 |
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| 摘 要： | 提出了一种新的基于相关矩阵对角化的代价函数,该代价函数通过抑制分离信号的互相关性达到盲信源分离的目的。这种分离新方法可用于分离平稳或非平稳信号的瞬时或卷积混合。针对传统梯度搜索方法容易陷入局部收敛的问题,文章还提出利用实数编码遗传算法对代价函数进行最优化搜索。仿真实验表明,这种遗传算法具有快速收敛性能和高精确度等优点。
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| 关 键 词： | 盲信源分离 遗传算法 相关矩阵对角化 去相关 |
| 收稿时间： | 2005-11-13 |
| 修稿时间： | 2005-11-13 |
Blind Source Separation Method Based on Real Coded Genetic Algorithm |
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| ZHENG Peng,HE Tong-lin,LIU Yu-lin,PENG Qi-cong,YOU Chun-yan.Blind Source Separation Method Based on Real Coded Genetic Algorithm[J].Journal of University of Electronic Science and Technology of China,2006,35(3):295-297,327. |
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| Authors: | ZHENG Peng HE Tong-lin LIU Yu-lin PENG Qi-cong YOU Chun-yan |
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| Affiliation: | 1.DSP Lab,Chongqing Communication Institute Shapingba Chongqing 400035;2.Dept of Computer,Chongqing Polytechinc Institute Shapingba Chongqing 400035;3.School of Communication and Information Engineering,Univ. of Elec. Sci. & Tech. of China Chengdu 610054 |
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| Abstract: | In this paper, a new cost function based on the diagonalization of correlation matrices is proposed to perform blind source separation. This cost function can restrain cross-correlation of separated signals and be applicable to separate instantaneous or convolutive mixture of stationary or non-stationary signals. A real coded genetic algorithm is proposed to search the optimum solution. Computer simulation results demonstrate this algorithm has not only fast convergence performance but also high accuracy. |
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| Keywords: | blind source separation genetic algorithm diagonalization of correlation matrices decorrelation |
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