| 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(社会科学版),2006(3). |
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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(郑鹏，刘郁林，尤春艳)，重庆工程职业技术学院计算机系 重庆沙坪坝区400035(何同林)，电子科技大学通信与信息工程学院 成都610054(彭启琮) |
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| 基金项目： | 国家自然科学基金资助项目(60372012，60272083) |
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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 |
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(Social Sciences Edition),2006(3). |
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| Authors: | ZHENG Peng HE Tong-lin LIU Yu-lin PENG Qi-cong YOU Chun-yan |
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| Institution: | ZHENG Peng1,HE Tong-lin2,LIU Yu-lin1,PENG Qi-cong2,YOU Chun-yan1 |
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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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