Title :
On linear phase MFIR filters approximation
Author :
Dovadola, M. ; Cortelazzo, G.
Author_Institution :
Dept. of Electron. & Inf., Padova Univ., Italy
fDate :
3/1/1990 12:00:00 AM
Abstract :
The approximations leading to linear-phase MFIR filters are analyzed. It is shown that the zero-phase nature of the IIR transfer functions to use as targets requires different approximation expressions for the poles inside and outside the unit circle and determines the presence of positive powers of z (anticipation) in the resulting MFIR filter expressions
Keywords :
digital filters; poles and zeros; transfer functions; IIR transfer functions; complex conjugate poles; different approximation expressions; digital filters; linear-phase MFIR filters; real poles; unit circle; zero-phase nature; Circuit testing; Equations; Extrapolation; Finite impulse response filter; IIR filters; Nonlinear filters; Sensor arrays; Signal processing algorithms; Speech processing; Transfer functions;
Journal_Title :
Acoustics, Speech and Signal Processing, IEEE Transactions on
