NDLI: Optimal design of nonuniform multirate filter banks

Content Provider	IEEE Xplore Digital Library
Author	Mehr, A.S. Chen, T.
Copyright Year	1999
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta., Canada (Mehr, A.S.)
Abstract	The design of a general nonuniform filter banks is studied. Contrary to a uniform filter bank, in a nonuniform filter bank, it may not be possible to achieve perfect reconstruction, but in some cases by using optimization techniques, we are able to design acceptable filter banks. Here, the initial analysis filters are designed according to the characteristics of the input. By the design procedure, the analysis filters are first fixed and the FIR synthesis filters are found so that the /spl Hscr//sub 2/-norm of an error system is minimized. Then, the synthesis filters are fixed and the analysis filters are found similarly. By iteration, the /spl Hscr//sub 2/ norm of the error system is decreased until it converges to its final value. In each iteration, the analysis or synthesis filters are obtained by finding the least square solution of a system of linear equations.
Starting Page	667
Ending Page	668
File Size	152505
Page Count	2
File Format	PDF
ISBN	0780355792
ISSN	08407789
DOI	10.1109/CCECE.1999.807996
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-05-09
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Channel bank filters Filter bank Finite impulse response filter Switches Sampling methods Bandwidth Frequency Design optimization Signal synthesis Nonlinear filters
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Hardware and Architecture

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