Title :
LS-minimax FIR filter design
Author_Institution :
KACST-RICE, Cambridge, MA, USA
Abstract :
In this paper, we present an algorithm for computing a linear-phase frequency-selective filter that minimizes the Chebyshev error in the passbands and the least-square error in the stopbands. It has been developed by utilizing the properties of Chebyshev-optimal filters. The algorithm is characterized by desirable convergence properties and yields substantially better filters than those designed using the Parks-McClellan method. Our algorithm is general-purpose, robust, easy to implement, and requires O(N3) computations to design a filter of size N
Keywords :
Chebyshev filters; FIR filters; circuit optimisation; delay circuits; least squares approximations; minimax techniques; Chebyshev error; Chebyshev-optimal filters; FIR filter; LS-minimax criterion; O(N3) computations; convergence properties; filter design; least-square error; linear-phase frequency-selective filter; Algorithm design and analysis; Band pass filters; Chebyshev approximation; Convergence; Design methodology; Finite impulse response filter; Frequency; Least squares methods; Passband; Robustness;
Conference_Titel :
Circuits and Systems, 1996., IEEE 39th Midwest symposium on
Conference_Location :
Ames, IA
Print_ISBN :
0-7803-3636-4
DOI :
10.1109/MWSCAS.1996.587808
