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Volume 32 Issue 5
May  2010
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Zhang Hua, Feng Da-zheng, Pang Ji-yong. A Time-Domain Blind Convolutive Separation Algorithm for Speech Signals Based on Second-Order Statistic[J]. Journal of Electronics & Information Technology, 2010, 32(5): 1083-1087. doi: 10.3724/SP.J.1146.2009.00574
Citation: Zhang Hua, Feng Da-zheng, Pang Ji-yong. A Time-Domain Blind Convolutive Separation Algorithm for Speech Signals Based on Second-Order Statistic[J]. Journal of Electronics & Information Technology, 2010, 32(5): 1083-1087. doi: 10.3724/SP.J.1146.2009.00574

A Time-Domain Blind Convolutive Separation Algorithm for Speech Signals Based on Second-Order Statistic

doi: 10.3724/SP.J.1146.2009.00574
  • Received Date: 2009-04-19
  • Rev Recd Date: 2009-11-10
  • Publish Date: 2010-05-19
  • For blind convolutive separation of speech signals, a cost function improved from the least squares fitting function is developed based on second-order statistic, which simplifies the quartic-function with respect to the mixture matrix into three quadratic functions. The iternative approach with three sub-steps is proposed to perform the non-unitary joint block-diagonalization. In each sub-step, a closed solution is derived by minimizing the cost function associated with one parameter-group while fixing the others. Furthermore, the feature of low computational complexity is analytically proven. Compared with ZJBD, the simulations illustrate that the proposed algorithm has the merits of robust initialization selection and better estimate accuracy.
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  • 马晓红, 梁丽丽, 殷福亮. 基于盲源分离理论的麦克风阵列信号有音/无音检测方法[J].电子与信息学报.2007, 29(3):589-592浏览Ma X H, Liang L L, and Yin F L. A voice activity detection method based on blind source separation for microphone array signals[J].Journal of Electronics Information Technology.2007, 29(3):589-592[2]党杰, 林秋华, 殷福亮. 基于盲源分离的多幅顺序图像加密方法[J].电子与信息学报.2007, 29(6):1471-1475浏览Dang J, Lin Q H, and Yin F L. Encryption of multiple sequential images using blind source separation[J].Journal of Electronics Information Technology.2007, 29(6):1471-1475[3]付卫红, 杨小牛, 刘乃安. 基于四阶累积量的稳健的通信信号盲分离算法[J].电子与信息学报.2008, 30(8):1853-1856浏览Fu W H, Yang X N, and Liu N A. Robust algorithm for communication signal blind separation fourth-order- cummulant-based[J].Journal of Electronics Information Technology.2008, 30(8):1853-1856[4]Fadaili E-M, Thirion-Moreau N, and Moreau E. Non-orthogonal joint diagonalization/zeros- diagonalization for source separation based on time-frequency distributions[J].IEEE Transactions on Signal Processing.2007, 55(5):1673-1687[5]徐舜, 刘郁林, 陈绍荣. 一种非平稳卷积混合信号的时域盲分离算法[J].电子与信息学报.2008, 30(3):589-592浏览Xu S, Liu Y L, and Chen S R. A time-domain algorithm for blind source separation of non-stationary convolutive mixtures[J].Journal of Electronics Information Technology.2008, 30(3):589-592[6]Bousbiah-Salah H, Belouchrani A, and Abed-Meraim K. Jacobi-like algorithm for blind signal separation of convolutive mixtures[J].Electronics Letters.2001, 37(16):1049-1050[7]Abed-Meraim K and Beloucharni A. Algorithms for joint block diagonalization[C]. Proc. EUSIPCO04, Vienna, Austria, Sept. 6-10, 2004: 209-212.[8]Ghennioui H, Fadaili E M, and Moreau N T, et al.. A nonunitary joint block diagonalization algorithm for blind separation of convolutive mixtures of sources[J].IEEE Signal Processing Letters.2007, 14(11):860-863[9]易克初, 田斌, 付强. 语音信号处理[M]. 北京: 国防工业出版社, 2001: 146-147.
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