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四阶累积量的fastICA算法稳定性分析 被引量:1

Stability Analysis on the Algorithm fastICA
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摘要 为验证基于四阶累积量的fastICA算法的稳定性,根据源信号的统计特性,对该算法进行理论分析,并利用仿真程序进行验证。得出算法在源信号具有相同四阶累积量的情况下,存在局部极值点,导致算法分离失败。 In practice,fastICA does not converge to the correct point for some special cases,so the stability of fastICA algorithm is analyzed.Theoretical analysis shows that local convergence points exist.Simulation results are given to prove the conclusion.
出处 《沈阳理工大学学报》 CAS 2014年第4期48-52,共5页 Journal of Shenyang Ligong University
关键词 ICA 四阶累积量 FASTICA 正交条件 ICA fourth-order statistics fastICA orthogonal condition
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  • 1Jutten C, Herault J. Blind separation of sources, part I : an adaptive algorithm based on neuromimetic architec- ture [ J ]. Signal Processing, 1991,24 ( 1 ) : 1 - 10.
  • 2Comon P, Jutten C, Herault J. Blind separation of source, part II : Problems statement [ J ]. Signal Pro- cessing, 1991,24 ( 1 ) : 11 - 20.
  • 3Bell A J, Sejnowski T J. An information maximization approach to blind separation and blind deconvolution[ J]. Neural computation, 1995,7 ( 6 ) : 1004 - 1034.
  • 4Gaeta M, Lacoume J L. Source separation without a priori knowledge: the maximum likelihood solution [ C ]. Proceeding of EUSIPCO ' 90,1990 : 621 - 624.
  • 5Amari S. Netural gradient works efficiently in learning [J].Neural Computation, 1998,10 ( 2 ) :251 - 276.
  • 6Hyvarinen A. A family of fixed point algorithms for independent compentent analysis [ C ]. Proceedings of ICASSP' 97,1997:3917 - 3920.
  • 7Theis F J. Uniqueness of complex and multidimension- al independent component analysis [ J ]. Signal Process- ing, 2004,84 ( 5 ) : 951 - 956.
  • 8Tsai D M, Tseng Y H, Chao S M, et al. Independent component analysis based filter design for defect detec- tion in low-contrast images [ C ]. Proceedings of the 18th International Conference on Pattern Recognition, 2006.231 - 234.
  • 9Masnadi-Shirazi A,Rao B. Independent vector analysis incorporating active and inactive states [ C ]. Proceed- ings of the 2009 IEEE International Conference on A- coustics,Speech, and Signal Processing,2009:1837 - 1840.
  • 10Cardoso J F. Estimating equations for source separation [ C]. Proceedings of ICASSP' 97,1997:3449 - 3452.

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