BSS信号盲分离，是指从若干观测到的混合信号中恢复出未知的源信号的方法。典型的观测到的混合信号是一系列传感器的输出，而每一个传感器输出的是一系列源信号经过不同程度的混合之后的信号。其中，“盲”有两方面的含义：（1）源信号是未知的；（2）混合方式也是未知的。-BSS blind source separation, it is to point to recover　a number of observations of mixed signal out of unknown source signals.Typical observed mixed signal is a series of the output of the sensor, and each of the sensor output is a series of source signals after different degrees of mixed signals.Among them, the　blind　has the meaning of two aspects: (1) the source signal is unknown (2) way is unknown.