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基于峭度的独立分量算法的性能分析研究 被引量:4
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作者 钟丽莉 熊兴中 《四川理工学院学报(自然科学版)》 CAS 2014年第4期43-47,共5页
独立分量算法是一种应用非常广泛的盲信号处理算法。而峭度作为一种重要的信号分析工具,可以有效地进行优化分析。然而,对于各种不同类型的算法的对比分析目前还少有介绍,所以有必要对基于峭度的FastICA和RobustICA两种独立分量算法进... 独立分量算法是一种应用非常广泛的盲信号处理算法。而峭度作为一种重要的信号分析工具,可以有效地进行优化分析。然而,对于各种不同类型的算法的对比分析目前还少有介绍,所以有必要对基于峭度的FastICA和RobustICA两种独立分量算法进行对比分析研究。理论分析及实验结果表明,鲁棒独立分量法RobustICA在鲁棒性、收敛性和复杂度方面整体优于快速定点独立分量法FastICA,从而为实际应用提供一定的参考价值。 展开更多
关键词 峭度 快速定点独立分量法 鲁棒独立分量法 鲁棒性 收敛 复杂度
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Speech Separation Based on Robust Independent Component Analysis 被引量:1
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作者 YAO Wen-po WU Min +2 位作者 LIU Tie-bing WANG Jun SHEN Qian 《Chinese Journal of Biomedical Engineering(English Edition)》 2013年第4期169-177,共9页
In this paper,we applied RobustICA to speech separation and made a comprehensive comparison to FastICA according to the separation results.Through a series of speech signal separation test,RobustICA reduced the separa... In this paper,we applied RobustICA to speech separation and made a comprehensive comparison to FastICA according to the separation results.Through a series of speech signal separation test,RobustICA reduced the separation time consumed by FastICA with higher stability,and speeches separated by RobustICA were proved to having lower separation errors.In the 14 groups of speech separation tests,separation time consumed by RobustICA was 3.185 s less than FastICA by nearly 68%.Separation errors of FastICA had a float between 0.004 and 0.02,while the errors of RobustICA remained around 0.003.Furthermore,compared to FastICA,RobustICA showed better separation robustness.Experimental results showed that RobustICA was successful to apply to the speech signal separation,and showed superiority to FastICA in speech separation. 展开更多
关键词 语音分离 独立分量分析 鲁棒性 FASTICA算法 分离试验 语音信号 分离时间 高稳定性
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