Title :
Improved weighted least squares minimax design of FIR filters specified in frequency and time domain
Author :
Marchesi, M.L. ; Witzgall, P.
Author_Institution :
Dipartimento di Ingegneria Biofisica e Elettronica, Genova Univ., Italy
fDate :
5/1/1993 12:00:00 AM
Abstract :
An improved weighted least-squares (LS) algorithm is presented for the design of minimax finite-impulse-response (FIR) digital filters specified both in frequency and time domain. The new technique is compared with traditional algorithms for linear-phase FIR filter design, demonstrating its speed and precision. It is then applied to the design of Nyquist filters with both null and non-null intersymbol interference, demonstrating its flexibility
Keywords :
digital filters; frequency-domain synthesis; intersymbol interference; least squares approximations; minimax techniques; time-domain synthesis; FIR filters; Nyquist filters; digital filters; frequency domain; intersymbol interference; precision; speed; time domain; weighted least squares minimax design; Algorithm design and analysis; Finite impulse response filter; Frequency domain analysis; Frequency response; Interference constraints; Intersymbol interference; Least squares methods; Linear programming; Minimax techniques; Nonlinear filters;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
