基于独立分量的信息极大化法机械振动盲分离研究

基于最大信息化原理,建立了用独立分量分析方法估计分离矩阵的自适应算法.利用所建立的方法进行了数值仿真,分离后信号波形与源信号一致.对具有不同转速的调速电机进行了多传感器信号采集并进行盲分离,电机的频率被有效的区分开来.实例证明,该方法是分离机械振动信号的一种有效方法.

Study on blind source separation of mechanical vibration based on the independent component analysis of information

Based on the principle of maximization of information, a method of self-adapt that estimates the separation matrix by independent component analysis is established. Based upon the method, the numerical simulation is performed; the waveforms of separated signals are identical with source signals. This blind source separation method was applied to multisensor signals of two rotors, the frequency of the rotors are separated satisfactorily. The real example proves that separation of mechanical vibrationsignals is an effective method.