Title :
Isomorphic FIR digital filters
Author :
Martinelli, G. ; Orlandi, G. ; Rocchini, C.A. ; Salerno, M.
Author_Institution :
UniversitÃ\xa0 di Roma, FacoltÃ\xa0 di Ingegneria, Istituto di Comunicazioni Elettriche, Roma, Italy
Abstract :
A method is proposed for realising FIR digital filters with a very low computational cost by applying a modular arithmetic. The basis of the method is the choice of the two submoduli 2B and 2B + 1, with 2B + 1 equal to a prime, and the use of the isomorphism between multiplicative groups and additive groups both in the case of the modulus 2B and 2B + 1.
Keywords :
digital filters; isomorphic FIR digital filters; modular arithmetic;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19830052
