Design of Subband Filter Banks for Applications in Audio, Video, and Multimedia Signal Processing (1/3)
Date Issued
2003-07-31
Date
2003-07-31
Author(s)
DOI
912219E002046
Abstract
This project has accomplished research
work for the development of the theory and
system structure of FIR quadrature mirror
filter (QMF) banks with linear phase and low
group delay response. Utilizing an
approximation scheme and an iterative
algorithm, we have developed a method to
design a two-channel QMF bank with
continuous coefficients under the design
criteria, namely, least-squares reconstruction
error and least-squares stopband response for
analysis filters. It is shown that the optimal
filter coefficients can be obtained by solving
only linear equations. In conjunction with an
iterative algorithm, a method is then
presented to obtain the desired design result.
The effectiveness of the proposed design
technique is demonstrated by several
simulation examples.
Subjects
FIR Filters
Subband Filter
Banks
Banks
Publisher
臺北市：國立臺灣大學電機工程學系暨研究所
Type
report
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