An efficient algorithm to design weighted minimax perfect reconstruction quadrature mirror filters

Author

Goh, Chee-Kiang ; Lim, Yong-Ching

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore

Volume

4

fYear

1997

fDate

9-12 Jun 1997

Firstpage

2389

Abstract

An efficient algorithm is presented in this paper to design lattice-type perfect reconstruction quadrature mirror filters (PR-QMF). Our proposed iterative algorithm designs the lattice coefficients of the filter bank directly, with flexible control of the filters´ stop-band ripple profiles. Typically, only a few iterations of our algorithm are needed to converge to an optimal solution in the weighted minimax sense. A procedure to obtain the lattice coefficients of PR-QMF banks yielding near linear phase filters is presented

Keywords

band-stop filters; circuit optimisation; delay circuits; iterative methods; lattice filters; minimax techniques; quadrature mirror filters; iterative algorithm; lattice coefficients; lattice-type perfect reconstruction quadrature mirror filters; near linear phase filters; optimal solution; stop-band ripple profiles; weighted minimax sense; Algorithm design and analysis; Filter bank; Finite impulse response filter; Image coding; Image reconstruction; Iterative algorithms; Lattices; Minimax techniques; Mirrors; Nonlinear filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1997. ISCAS '97., Proceedings of 1997 IEEE International Symposium on

Print_ISBN

0-7803-3583-X

Type

conf

DOI

10.1109/ISCAS.1997.612804

Filename

612804