›› 2015, Vol. 28 ›› Issue (3): 79-.

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  1. (西安电子科技大学 数学与统计学院,陕西 西安 710071)
  • 出版日期:2015-03-15 发布日期:2015-03-12
  • 作者简介:邵莲莲(1987—),女,硕士研究生。研究方向:统计学习算法,盲信号与信息处理中的数学方法。E-mail:shaolianlian2012@163.com

Natural Gradient Algorithm for Blind Source Separation with Unknown Source Number

SHAO Lianlian   

  1. (School of Mathematics and Statistics,Xidian University,Xi'an 710071,China)
  • Online:2015-03-15 Published:2015-03-12



关键词: 盲信号分离, 自然梯度算法, 冗余分量, 指数分布


A summary of the natural gradient algorithm for blind source separation with an unknown number of sources is presented and the conclusion is drawn that it is the redundant movement of separating matrix in the zero space of the transpose of mixing matrix that causes the divergence.By the projected natural gradient algorithm,we theoretically prove that with the increase in the number of iterations,the norm of the redundant subjects to an exponential distribution.

Key words: blind source separation;natural gradient algorithm;the redundant;exponential distribution


  • TN911.7