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Equiripple Approximation of Half-Band FIR Filters

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2 Author(s)
Zahradnik, P. ; Dept. of Telecommun. Eng., Czech Tech. Univ. in Prague, Prague, Czech Republic ; Vlcek, M.

A novel design procedure of equiripple (ER) half-band (HB) finite-impulse-response (FIR) filters is developed. A solution to the approximation problem in terms of generating function and zero-phase transfer function for the ER HB FIR filter is presented. The ER HB FIR filters are optimal in the Chebyshev sense. The closed-form solution provides an efficient computation of the impulse response of the filter. One example is included.

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Circuits and Systems II: Express Briefs, IEEE Transactions on  (Volume:56 ,  Issue: 12 )