DocumentCode
1101145
Title
Design of low-delay FIR QMF banks using the Lagrange-multiplier approach
Author
Abdel-Raheem, E. ; El-Guibaly, F. ; Antoniou, Athanasios
Author_Institution
Dept. of Electr. & Comput. Eng., Victoria Univ., BC
Volume
30
Issue
12
fYear
1994
fDate
6/9/1994 12:00:00 AM
Firstpage
924
Lastpage
926
Abstract
A new approach for the design of two-channel perfect reconstruction FIR filter banks with short reconstruction delays is presented. A low-order filter is first designed and the objective function of the filter bank is formulated as a quadratic programming problem with linear constraints. The Lagrange-multiplier method is then used to design a higher-order filter. The method is simple, efficient, and flexible and leads to a closed-form solution. A design example is included to illustrate the advantages of the method
Keywords
digital arithmetic; digital filters; filtering and prediction theory; quadratic programming; signal processing; Lagrange-multiplier method; closed-form solution; digital filters; filter design method; higher-order filter; linear constraints; low-delay FIR QMF banks; low-order filter; objective function; quadratic programming problem; quadrature mirror filter; short reconstruction delays; two-channel perfect reconstruction FIR filter;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19940629
Filename
293044
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