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Satisfying the Haar condition in halfband FIR filter design

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1 Author(s)
Ansari, R. ; Dept. of Electr. Eng., Pennsylvania Univ., Philadelphia, PA

A reformulation of the FIR symmetric halfband filter design problem is described that allows elimination of the constraints on coefficients from the design, thereby facilitating the direct use of the Parks-McClellan design procedure. In this procedure, it is only necessary to use a single-frequency care-band for approximation with about one-half the filter order of the halfband filter

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Acoustics, Speech and Signal Processing, IEEE Transactions on  (Volume:36 ,  Issue: 1 )