FIR 底通和带通滤波器和IIR 底通和带通滤波器，最小均方误差（MMSE）的算法，基于负熵最大的独立分量分析。- Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, Minimum mean square error (MMSE) algorithm, Based on negative entropy largest independent component analysis.