A new method of implementing efficient FIR filters is presented. It involves approximation of an equiripple FIR by a rounding operation and application of the derived impulse response by a simple recursive equation. The technique is extremely efficient for lowpass, highpass, bandpass, and bandstop filters with sharp transitions and low edge frequencies
Published in:
Signal Processing, IEEE Transactions on
(Volume:46
,
Issue:
8
)
Date of Publication: Aug 1998