A matrix approach for the coefficients of maximally flat FIR filter transfer functions
L.R. Rajagopal, S. C. Dutta Roy · IEEE Transactions on Acoustics Speech and Signal Processing · 1988
A matrix approach is proposed for determining the coefficients of maximally flat FIR filter transfer function expressed in terms of the cosine of multiple angles. A transformation matrix maps a functional vector, the entries of which are either 0 or 1, into the coefficient vector of the transfer function. It is shown that the transformation matrix can be generated either directly or recursively.>