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On fixed-point impl...
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Ingemarsson, Carl,1983-Linköpings universitet,Datorteknik,Tekniska fakulteten
(author)
On fixed-point implementation of symmetric matrix inversion
- Article/chapterEnglish2015
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Piscataway, NJ, USA :IEEE,2015
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electronicrdacarrier
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LIBRIS-ID:oai:DiVA.org:liu-124357
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-124357URI
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https://doi.org/10.1109/ECCTD.2015.7300068DOI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:kon swepub-publicationtype
Notes
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In this work we explore the trade-offs between established algorithms for symmetric matrix inversion for fixed-point hardware implementation. Inversion of symmetric positive definite matrices finds applications in many areas, e.g. in MIMO detection and adaptive filtering. We explore computational complexity and show simulation results where numerical properties are analyzed. We show that LDLT decomposition combined with equation system solving are the most promising algorithm for fixed-point hardware implementation. We further show that simply counting the number of operations does not establish a valid comparison between the algorithms as the required word lengths differ significantly.
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Gustafsson, Oscar,1973-Linköpings universitet,Datorteknik,Tekniska fakulteten(Swepub:liu)oscgu95
(author)
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Linköpings universitetDatorteknik
(creator_code:org_t)
Related titles
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In:Proceedings of the European Conference on Circuit Theory and Design (ECCTD)Piscataway, NJ, USA : IEEE, s. 440-4439781479998777
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