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A Multimode Transmultiplexer Structure
Linköping University, Department of Electrical Engineering. 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. Linköping University, The Institute of Technology.
2008 (English)In: IEEE transactions on circuits and systems. 2, Analog and digital signal processing (Print), ISSN 1057-7130, Vol. 55, no 3, 279-283 p.Article in journal (Refereed) Published
Abstract [en]

This paper introduces a multimode transmultiplexer (TMUX) structure capable of generating a large set of user-bandwidths and center frequencies. The structure utilizes fixed integer sampling rate conversion (SRC) blocks, Farrow-based variable interpolation and decimation structures, and variable frequency shifters. A main advantage of this TMUX is that it needs only one filter design beforehand. Specifically, the filters in the fixed integer SRC blocks as well as the subfilters of the Farrow structure are designed only once. Then, all possible combinations of bandwidths and center frequencies are obtained by properly adjusting the variable delay parameter of the Farrow-based filters and the variable parameters of the frequency shifters. The paper includes examples for demonstration. It also shows that, using the rational SRC equivalent of the Farrow-based filters, the TMUX can be described in terms of conventional multirate building blocks which may be useful in further analysis of the overall system.

Place, publisher, year, edition, pages
Institutionen för systemteknik , 2008. Vol. 55, no 3, 279-283 p.
Keyword [en]
Multimode communications, Sampling rate conversion (SRC), Transmultiplexers (TMUXs)
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-11773DOI: 10.1109/TCSII.2008.918934OAI: oai:DiVA.org:liu-11773DiVA: diva2:18196
Note
Original publication: Amir Eghbali, Håkan Johansson and Per Löwenborg, A Multimode Transmultiplexer Structure, 2008, IEEE Transactions on Circuits and Systems II, (55), 3, 279-283. http://dx.doi.org/10.1109/TCSII.2008.918934. Copyright: IEEE, http://www.ieee.orgAvailable from: 2008-05-09 Created: 2008-05-09 Last updated: 2009-04-26

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Eghbali, AmirJohansson, HåkanLöwenborg, Per

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