| 非平稳卷积混合信号的盲分离 |
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| 引用本文： | 唐江波,郭威.非平稳卷积混合信号的盲分离[J].电声技术,2011,35(2):57-60. |
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| 作者姓名： | 唐江波 郭威 |
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| 作者单位： | 唐江波,TANG Jiangbo(广州工商职业技术学院,电子与电气工程系,广东,广州,510800);郭威,GUO Wei(广州日滨科技发展有限公司,广东,广州,510800) |
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| 基金项目： | 国家自然科学基金项目，广西科学基金项目 |
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| 摘 要： | 传感器采集到的信号是由多目标源、环境噪声等经多途径卷积混合的形武.为有效地去除环境因素如干扰、传输延迟等的影响,提出一种新的盲信号分离方法.利用非平稳信号的多重去相关和最小二乘准则来估计混合矩阵A或解混矩阵W以及信号和噪声功率.实验结果表明,该算法具有良好的分离效果.
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| 关 键 词： | 盲分离 卷积混合 代价函数 非平稳信号 |
Convolutive Blind Source Separation of Non-stationary Source |
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| TANG Jiangbo,GUO Wei.Convolutive Blind Source Separation of Non-stationary Source[J].Audio Engineering,2011,35(2):57-60. |
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| Authors: | TANG Jiangbo GUO Wei |
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| Affiliation: | 1.School of Electrical and Electronic Engineering,Guangzhou Vocational & Technical Institute of Industry & Commerce,Guangzhou 510800,China;2.Guangzhou Ropen Technology Co.,Ltd.,Guangzhou 510800,China) |
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| Abstract: | Signals obtained by sensor arrays are convolutive mixtures for multiple-sources and environment noises through multiple-paths.A novel approach of the blind source separation is proposed to remove the interferences of time-delay and environment noises.It takes up the multiple decorrelation approach assuming non-stationary signals and uses a least square optimization to estimate A or W as well as signal and noise powers.Experiment results illustrate the algorithm can get high separation performance for both non-stationary and convolved mixing signals. |
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| Keywords: | blind source separation convolutive mixture cost function non-stationary signal |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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