2.Adaptive Wiener Filter (AWF) Introduction The features of Wiener Filter: (1)Be suitable to process stationary random signals (2)The prior statistical properties for signals and noise is required (3)The parameters of filter system are fixed 33 2. Adaptive Wiener Filter (AWF) Introduction The features of Wiener Filter: (1) Be suitable to process stationary random signals (2) The prior statistical properties for signals and noise is required (3) The parameters of filter system are fixed