FINITE WORDLENGTH COEFFICIENT DESIGN OF DIGITAL FILTERS BASED ON ALLPASS NETWORKS
Alexander T. Mingazin · 1999
An algorithm using a variation of initial parameters for finite wordlength coefficient design of digital filters based on parallel connection of two allpass networks is proposed. At the first stage good starting points in an elliptic approximation initial parameter space are defined and on the second a local search of solutions in vicinities of these points is executed. A conventional and two special variants of filter design are considered. Some examples of the minimum coefficient wordlength or/and efficient multiplierless filter design are presented.