An iterative method for the design of FIR partial filter banks

Author

Mo, Y.S. ; Lu, W.-S. ; Antoniou, A.

Author_Institution

Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada

Volume

2

fYear

1997

fDate

3-6 Aug 1997

Firstpage

679

Abstract

An iterative algorithm for the design of FIR partial filter banks (PFBs) is described. The design problem is formulated as a 4th-order nonlinear optimization problem in which the objective function is a weighted sum of a reconstruction-error term and an aliasing-error term. The optimization problem is solved by iteratively minimizing a pair of quadratic functions. Explicit formulas for evaluating the minimums of these quadratic functions are derived, which lead to an efficient and fast algorithm. Two design examples are presented to illustrate the proposed algorithm. The PFBs obtained are then used to compress bathymetric signals and electrocardiograms

Keywords

FIR filters; band-pass filters; circuit optimisation; digital filters; iterative methods; FIR partial filter banks; aliasing-error term; bathymetric signals; electrocardiograms; iterative method; nonlinear optimization problem; objective function; quadratic functions; reconstruction-error term; weighted sum; Algorithm design and analysis; Channel bank filters; Design methodology; Design optimization; Filter bank; Finite impulse response filter; Image reconstruction; Iterative algorithms; Iterative methods; Speech analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1997. Proceedings of the 40th Midwest Symposium on

Conference_Location

Sacramento, CA

Print_ISBN

0-7803-3694-1

Type

conf

DOI

10.1109/MWSCAS.1997.662166

Filename

662166