Design of near perfect reconstruction oversampled filter banks for subband adaptive filters

被引:86
作者
Harteneck, M [1 ]
Weiss, S [1 ]
Stewart, RW [1 ]
机构
[1] Univ Strathclyde, Dept Elect & Elect Engn, Div Signal Proc, Glasgow G1 1XW, Lanark, Scotland
关键词
adaptive filtering; filter bank design; oversampled near-perfect; reconstruction filter banks;
D O I
10.1109/82.782056
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this brief, a design algorithm for real-valued and complex-valued oversampled filter banks which yield a low level of inband alias and enable simple subband adaptive structures is presented. The filter banks are either based on complex modulation of a real-valued low-pass prototype or on the direct or modulated setups of real-valued filter banks. If real-valued filter banks are required, then the different channels will have different subsampling ratios so that the bandpass sampling theorem is not violated. This brief also presents design examples of real-valued and complex-valued filter banks.
引用
收藏
页码:1081 / 1085
页数:5
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