Title :
Reduction of computational cost in DFT implementation of FIR digital filters
Author :
Martinelli, Giovanni ; Orlandi, G. ; Burrascano, Pietro
Author_Institution :
Info-Com Department, Engineering Faculty of Roma, Roma, Italy
Abstract :
The influence on the computational cost of the transformation of a FIR digital filter into cyclic convolutions is analysed in the letter. An optimal choice of the length of the cyclic convolutions is suggested and illustrated.
Keywords :
digital filters; fast Fourier transforms; DFT implementation; FIR digital filter; computational cost; cyclic convolutions;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850260
