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Single Filter Frequency Masking High-Speed Recursive Digital Filters
Linköping University, The Institute of Technology. Linköping University, Department of Electrical Engineering, Electronics System.ORCID iD: 0000-0003-3470-3911
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.
2003 (English)In: Circuits, systems, and signal processing, ISSN 0278-081X, E-ISSN 1531-5878, Vol. 22, no 2, 219-238 p.Article in journal (Refereed) Published
Abstract [en]

For recursive filter the maximal sample frequency is bounded by the recursive loops in the filter. [In this paper, it is understood that recursive filters are infinite-length impulse response (IIR) filters.] In this work, a filter structure based on the use of the frequency masking approach is presented that increases the maximal sample frequency for narrowband and wideband filters by introducing more delay elements in the recursive loops. By using identical subfilters (except for the periods), the subfilters can be mapped using folding to a single pipeline/interleaved arithmetic structure yielding an area-efficient implementation. The filters are potentially suitable for low-power implementation by using power supply voltage scaling techniques. In this work, the design of the filters is discussed and estimations of the ripples are derived. Two examples show the viability of the proposed method.

Place, publisher, year, edition, pages
2003. Vol. 22, no 2, 219-238 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-34597DOI: 10.1007/s00034-004-7028-yLocal ID: 22200OAI: oai:DiVA.org:liu-34597DiVA: diva2:255445
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2017-12-13

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Gustafsson, OscarJohansson, HåkanWanhammar, Lars

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