A Design Technique for Half-band FIR Filters with Equi-ripple Passband Amplitude.
Mamoru Tsuchiya · The Journal of The Institute of Image Information and Television Engineers · 1995
A new algorithm for designing half-band FIR (Finite Impulse Response) filters with equiripple passband amplitude is developed.This algorithm is an analytical design method with which tap-gain coefficients of FIR filters are obtained by non-iterative calculation.The minimum stopband attenuation can be reduced within the limits of appropriate quantity by permitting equi-ripples in the passband without extending the transition width of FIR filters.A method to reduce the level of equi-ripples is also mentioned.1.