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Titolo:
Multiplierless perfect reconstruction modulated filter banks with sum-of-powers-of-two coefficients
Autore:
Chan, SC; Liu, W; Ho, KL;
Indirizzi:
Univ Hong Kong, Dept Elect & Elect Engn, Hong Kong, Hong Kong, Peoples R China Univ Hong Kong Hong Kong Hong Kong Peoples R China Kong, Peoples R China
Titolo Testata:
IEEE SIGNAL PROCESSING LETTERS
fascicolo: 6, volume: 8, anno: 2001,
pagine: 163 - 166
SICI:
1070-9908(200106)8:6<163:MPRMFB>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
FAST ALGORITHMS;
Keywords:
fast implementation; modulated filter bank; multiplierless; perfect reconstruction; sum-of-powers-of-two;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
--discip_EC--
Citazioni:
7
Recensione:
Indirizzi per estratti:
Indirizzo: Chan, SC Univ Hong Kong, Dept Elect & Elect Engn, Hong Kong, Hong Kong, Peoples R China Univ Hong Kong Hong Kong Hong Kong Peoples R China ples R China
Citazione:
S.C. Chan et al., "Multiplierless perfect reconstruction modulated filter banks with sum-of-powers-of-two coefficients", IEEE SIG PL, 8(6), 2001, pp. 163-166

Abstract

This paper proposes an efficient class of perfect reconstruction (PR) modulated filter banks (MFB) using sum-of-powers-of-two (SOPOT) coefficients, This is based on a modified factorization of the DCT-IV matrix and the lossless lattice structure of the prototype filter, which allows the coefficients to be represented in SOPOT form without affecting the PR condition. A genetic algorithm (GA) is then used to search for these SOPOT coefficients, Design examples show that SOPOT MFB with a good frequency characteristic can be designed with very low implementation complexity. The usefulness of the approach is demonstrated with a 16-channel design example.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/05/20 alle ore 17:09:23