Title :
Matrix approach for the coefficients of maximally flat FIR filter transfer functions expressed in powers of cos w
Author :
Rajagopal, L.R. ; Dutta Roy, Suhash C.
Author_Institution :
Department of Electrical Engineering, Indian Institute of Technology, New Delhi, India
Abstract :
A matrix approach is proposed for determining the coefficients of maximally flat FIR filter transfer functions expressed in powers of cos w. It is shown that the transformation matrix is a product of the well known Q-matrix and a diagonal matrix. Also, a property relating two Q-matrices of successive orders, N and N + 1, is pointed out.
Keywords :
digital filters; matrix algebra; transfer functions; Q-matrix; matrix approach; maximally flat FIR filter; transfer function coefficients; transformation matrix;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870286
