Title :
Explicit formula for filter function of maximally flat nonrecursive digital filters
Author :
Bromba, M.U.A. ; Ziegler, H.
Author_Institution :
Universitÿt Paderborn, Angewandte Physik, Paderborn, West Germany
Abstract :
A general formula for the filter function of maximally flat f.i.r. digital filters using modified Krawtchouk polynomials is presented. This formula permits a direct calculation of the filter weights. It is especially advantageous for either high or low passband/stopband width ratios.
Keywords :
digital filters; low-pass filters; polynomials; Krawtchouk polynomials; explicit formula; filter function; finite impulse response; maximally flat; nonrecursive digital filters; passband/stopband width ratios;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19800644
