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A class of complementary IIR filters
Linköping University, Department of Electrical Engineering.
1999 (English)In: International symposium on circuits and systems,1999, 1999, 3/299- p.Conference paper (Refereed)
Abstract [en]

A class of complementary IIR filters is introduced. One of these filters can be realized as a tapped cascaded interconnection of identical allpass subfilters. The complementary filter is then obtained automatically by adding some extra allpass subfilters and a subtractor. The proposed filters are always allpass complementary and, under certain conditions, also magnitude complementary. Further, in terms of the frequency selectivity, they exhibit properties similar to those of complementary linear-phase FIR filters. These properties are retained also after coefficient quantization. The design of the filters is divided into the design of a prototype FIR filter and a prototype IIR filter being realizable as a parallel connection of two allpass filters. Design examples are included for demonstration.

Place, publisher, year, edition, pages
1999. 3/299- p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-34490Local ID: 21551OAI: diva2:255338
Available from: 2009-10-10 Created: 2009-10-10

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Johansson, Håkan
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Department of Electrical Engineering
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