A New Low Complexity Uniform Filter Bank Based on the Improved Coefficient Decimation Method
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Date
2013-04
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Advisor
Referee
Mark
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Volume Title
Publisher
Společnost pro radioelektronické inženýrství
Abstract
In this paper, we propose a new uniform filter bank (FB) based on the improved coefficient decimation method (ICDM). In the proposed FB’s design, the ICDM is used to obtain different multi-band frequency responses using a single lowpass prototype filter. The desired subbands are individually obtained from these multi-band frequency responses by using low order frequency response masking filters and their corresponding ICDM output frequency responses. We show that the proposed FB is a very low complexity alternative to the other FBs in literature, especially the widely used discrete Fourier transform based FB (DFTFB) and the CDM based FB (CDFB). The proposed FB can have a higher number of subbands with twice the center frequency resolution when compared with the CDFB and DFTFB. Design example and implementation results show that our FB achieves 86.59% and 58.84% reductions in resource utilizations and 76.95% and 47.09% reductions in power consumptions when compared with the DFTFB and CDFB respectively.
Description
Citation
Radioengineering. 2013, vol. 22, č. 1, s. 34-43. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2013/13_01_0034_0043.pdf
http://www.radioeng.cz/fulltexts/2013/13_01_0034_0043.pdf
Document type
Peer-reviewed
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Published version
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en