Minimax design of IIR digital filters and filter banks with discrete coefficients
Date Issued
2006
Date
2006
Author(s)
Cheng, Tsai Hsu
DOI
zh-TW
Abstract
Owing to the increasing use of digital signal processing, the design of digital filters and filter banks plays an important role in this filed .In this thesis we present genetic algorithm and WLS algorithm with CORDIC algorithm for QMF banks and non-uniform division filter banks based on 1-D IIR all-pass filters with discrete coefficients .
The resulting two-channel QMF banks and non-uniform division filter banks can possess approximately linear phase response without magnitude distortion. The effectiveness of the proposed techniques is achieved by forming an appropriate Chebyshev approximation of a desired phase response .
In each chapter，we design some examples and the simulation examples are demonstrated and satisfy，
Subjects
正交鏡像濾波器組
非均勻濾波器組
基因演算法
QMF
NDF
GA,CORDIC
Type
thesis
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