| 盲卷积信号的一种高效分离算法 |
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| 引用本文： | 何清波,孔凡让,冯志华,张志伟,朱忠奎.盲卷积信号的一种高效分离算法[J].系统仿真学报,2006,18(1):260-263,266. |
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| 作者姓名： | 何清波 孔凡让 冯志华 张志伟 朱忠奎 |
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| 作者单位： | 1. 中国科学技术大学精密机械与精密仪器系,安徽合肥,230026
2. 苏州大学机电工程学院,江苏苏州,215021 |
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| 摘 要： | 针对盲卷积信号提出一种高效分离算法，采用分段的思想，对每短时段信号通过检验分离效果而灵活选择是否需要重新训练分离矩阵参数，既考虑了混合模型的时变性，又大大提高了盲分离的效率。研究还提出并应用了限值检验控制准则，来有效进行迭代算法的控制和分离效果检验的判决，保证了算法的执行效率。仿真实验分析通过比较不分段盲分离算法和分段逐段盲分离算法，表明了该算法的高效性。
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| 关 键 词： | 盲分离 卷积模型 分段 限值检验控制准则 消噪 |
| 文章编号： | 1004-731X（2006）01-0260-04 |
| 收稿时间： | 2004-11-10 |
| 修稿时间： | 2004-11-102005-08-05 |
An Efficient Algorithm of Blind Source Separation for Convolved Signals |
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| HE Qing-bo,KONG Fan-rang,FENG Zhi-hua,ZHANG Zhi-wei,ZHU Zhong-kui.An Efficient Algorithm of Blind Source Separation for Convolved Signals[J].Journal of System Simulation,2006,18(1):260-263,266. |
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| Authors: | HE Qing-bo KONG Fan-rang FENG Zhi-hua ZHANG Zhi-wei ZHU Zhong-kui |
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| Institution: | 1 .University of Science and Technology of China, Hefei 230026, China; 2.Soochow University, Suzhou 215021, China |
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| Abstract: | An efficient algorithm of blind source separation for convolved signals with the blocking idea was proposed, which could decide whether a new separation matrix was trained or not after detecting the separation results for every short signal. It not only thinks about the time-varying of the mixture model but also greatly improves the efficiency of BSS. The detection and control criteria based on the threshold was also proposed and effectively applied to the control of the iterative algorithm and the judgment of the separation effect. The simulation experiment shows that this algorithm is more efficient than the other algorithms. |
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| Keywords: | blind source separation convolution mixtures blocking detection and control criteria based on the threshold noise reduction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
