独立成分分析(Independent Component Analysis，ICA)是近年来提出的非常有效的数据分析工具，它主要用来从混合数据中提取出原始的独立信号。它作为信号分离的一种有效方法而受到广泛的关注。-Independent component analysis (ICA) is proposed in recent years very effective tool for data analysis. It is mainly used to extract the original signal of independence　the mixed data. It is a effective method to signal separation has been widely concerned.