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On low-delay frequency-response masking FIR filters
Linköping University, The Institute of Technology. Linköping University, Department of Electrical Engineering, Electronics System.
Linköping University, The Institute of Technology. Linköping University, Department of Electrical Engineering, Electronics System.
2007 (English)In: Circuits, systems, and signal processing, ISSN 0278-081X, E-ISSN 1531-5878, Vol. 26, no 1Article in journal (Refereed) Published
Abstract [en]

This paper offers two main contributions to the theory of low-delay frequency-response masking (FRM) finite impulse response (FIR) filters. First, a thorough investigation of the low-delay FRM FIR filters and their subfilters or three different structures, referred to as narrow-, wide-, and middle-band filter structures, is given. The investigation includes discussions on delay distribution over the subfilters as well as estimation of the optimal periodicity of the periodic model filter. Second, systematic design procedures are given, with explicit formulas for distribution of the ripples and the delay to the subfilters. For each of the three structures, two design procedures are given that include joint optimization of the subfilters. The first proposal uses partly linear-phase FIR subfilters and partly low-delay FIR subfilters. Thus, it has a lower arithmetic complexity compared to the second proposal, which has exclusively low-delay FIR subfilters. The second proposal is instead more flexible and can handle a broader range of specifications. The design procedures result in low-delay FIR filters with a lower arithmetic complexity compared to previous results, for specifications with low delay and narrow transition band. © Birkhauser Boston 2007.

Place, publisher, year, edition, pages
2007. Vol. 26, no 1
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-37318DOI: 10.1007/s00034-005-0218-4Local ID: 34584OAI: oai:DiVA.org:liu-37318DiVA: diva2:258167
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2017-12-13

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Rosenbaum, LinneaJohansson, Håkan

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