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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.
Circuits and Systems II: Express Briefs, IEEE Transactions on (Volume:56 , Issue: 12 )
Date of Publication: Dec. 2009