Title :
Half-band filter design with odd-polynomial Chebyshev approximation
Author :
Chang, W.-T. ; Lin, M.-S.
Author_Institution :
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
8/1/1991 12:00:00 AM
Abstract :
An efficient method for the design of the half-band filter is described. Both the characteristics of the time response and the frequency response of the half-band filter are fully utilised to reduce the computation time and to increase the computation accuracy. The algorithm is based on the Chebyshev approximation criterion and uses only odd-symmetry polynomials for frequency interpolation to meet the required frequency response of the half-band filter
Keywords :
Chebyshev approximation; digital filters; frequency response; polynomials; computation accuracy; computation time; frequency interpolation; frequency response; half-band filter; odd-polynomial Chebyshev approximation; odd-symmetry polynomials; time response;
Journal_Title :
Circuits, Devices and Systems, IEE Proceedings G
