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Author Ghosh, P. ♦ Das, S. ♦ Zafar, H.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1998
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science ♦ Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Vectors ♦ Statistics ♦ Algorithm design and analysis ♦ Linear programming ♦ Filter banks ♦ Image reconstruction ♦ sub-band coding ♦ Differential evolution (DE) ♦ filter banks ♦ perfect reconstruction ♦ quadrature mirror filter (QMF)
Abstract This paper proposes an improved and adaptive variant of the differential evolution algorithm for the design of two-channel quadrature mirror filters with linear phase characteristics. To match the ideal system response characteristics, the algorithm is employed to optimize the values of the filter bank coefficients. The filter response is optimized in both passband and stopband. The overall filter bank response aims at minimizing objectives like reconstruction error, mean square error in passband, and mean square error in stopband. Effective designing can be achieved by efficiently minimizing the objective function. The proposed algorithm is able to perform better than the other existing design methods. Five different design examples are presented to validate the effectiveness of the proposed approach over other conventional design techniques, as well as state-of-the-art evolutionary algorithms found in the literature.
Description Author affiliation :: Electron. & Commun. Sci.Unit, Indian Stat. Inst., Kolkata, India
Author affiliation :: Dept. of Electron. & Telecommun. Eng., Jadavpur Univ., Kolkata, India
ISSN 10946977
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2012-11-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 42
Issue Number 6
Size (in Bytes) 668.53 kB
Page Count 11
Starting Page 1613
Ending Page 1623


Source: IEEE Xplore Digital Library