Open Access

Chebyshev Functions-Based New Designs of Halfband Low/Highpass Quasi-Equiripple FIR Digital Filters

EURASIP Journal on Advances in Signal Processing20032003:573241

Received: 12 April 2002

Published: 13 March 2003


Chebyshev functions, which are equiripple in a certain domain, are used to generate equiripple halfband lowpass frequency responses. Inverse Fourier transformation is then used to obtain explicit formulas for the corresponding impulse responses. The halfband lowpass FIR digital filters designed in this way are quasi-equiripple, having performances very close to those of true equiripple filters, and are comparatively much simpler to design.


digital filtersFIRhalfbandequirippleChebyshev functions

Authors’ Affiliations

Department of Information and Media Sciences, The University of Kitakyushu, Kitakyushu, Japan
Collaboration Center, Kitakyushu Foundation for the Advancement of Industry, Science and Technology, Kitakyushu, Japan
Division of Applied Physics, Graduate School of Engineering, Hokkaido University, Sapporo, Japan


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