文章基本信息

标题：Design of M-Channel IIR Uniform DFT Filter Banks Using Recursive Digital Filters
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作者：Dehghani, M.J. ; Aravind, R. ; Prabhu, K.M.M. 等
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2003
卷号：25
期号：5
页码：345-345
语种：English
出版社：Electronics and Telecommunications Research Institute
摘要：In this paper, we propose a method for designing a class of M-channel, causal, stable, perfect reconstruction, infinite impulse response (IIR), and parallel uniform discrete Fourier transform (DFT) filter banks. It is based on a previously proposed structure by Martinez et al. [1] for IIR digital filter design for sampling rate reduction. The proposed filter bank has a modular structure and is therefore very well suited for VLSI implementation. Moreover, the current structure is more efficient in terms of computational complexity than the most general IIR DFT filter bank, and this results in a reduced computational complexity by more than 50% in both the critically sampled and oversampled cases. In the polyphase oversampled DFT filter bank case, we get flexible stop-band attenuation, which is also taken care of in the proposed algorithm.
关键词：DFT filter bank;perfect reconstruction;IIR filter;FIR filter;prototype filter;causal and stable;polyphase;critically sampled;oversampled;computational complexity