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An efficient method of FIR filtering based on impulse response rounding

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4 Author(s)
Bartolo, A. ; Biomed. Eng. Center, Ohio State Univ., Columbus, OH, USA ; Clymer, B.D. ; Burgess, R.C. ; Turnbull, J.P.

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

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Signal Processing, IEEE Transactions on  (Volume:46 ,  Issue: 8 )