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Improved LMS Estimation via Structural Detection
University of Queensland, Australia.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology. Royal Institute of Technology, Sweden.
1995 (English)Report (Other academic)
Abstract [en]

In various adaptive estimation applications, the unknown channel is characterized by an impulse response which consists of extended regions of negligible response or `inactivity'. We consider the LMS estimation of a channel that may be well approximated by an FIR (filter) model with only a few nonzero tap coefficients within a given delay horizon or tap length n. When the number of nonzero tap coefficients m is small compared to the delay horizon n, the performance of the LMS estimator is greatly enhanced when this specific structure is exploited. We propose a consistent algorithm that performs identification of nonzero taps only

Place, publisher, year, edition, pages
1995. , 27 p.
Series
LiTH-ISY-R, ISSN 1400-3902 ; 1725
Keyword [en]
Least squares, Activity, Threshold, Asymptotic, Transient, Consistency
Keyword [sv]
Elektronik
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-55242ISRN: LITH-ISY-R-1725OAI: oai:DiVA.org:liu-55242DiVA: diva2:315895
Available from: 2010-04-29 Created: 2010-04-29 Last updated: 2014-08-22Bibliographically approved

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Gustafsson, Fredrik

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Automatic ControlThe Institute of Technology
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