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DSP-CIS Chapter-13: Least Mean Squares (LMS) Algorithm Marc Moonen Dept. E.E./ESAT-STADIUS, KU Leuven marc.moonen@esat.kuleuven.be www.esat.kuleuven.be/stadius/
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 2 Part-III : Optimal & Adaptive Filters : Optimal & Adaptive Filters - Intro General Set-Up Applications Optimal (Wiener) Filters – : Least Squares & Recursive Least Squares Estimation Least Squares Estimation Recursive Least Squares (RLS) Estimation Square-Root Algorithms – : Least Means Squares (LMS) Algorithm LMS/NLMS : Stochastic Gradient Algorithms LMS analysis LMS Family – : Fast Recursive Least Squares Algorithms : Kalman Filtering Chapter-11 Chapter-12 Chapter-13 Chapter-14 Chapter-15
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 3 Least Mean Squares (LMS) Algorithm
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 4 Least Mean Squares (LMS) Algorithm
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 5 Least Mean Squares (LMS) Algorithm (Widrow 1965 !!)
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 6 Least Mean Squares (LMS) Algorithm Bernard Widrow https://www.youtube.com/watch?v=hc2Zj55j1zU
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 7 Least Mean Squares (LMS) Algorithm
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 8 Least Mean Squares (LMS) Algorithm
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 9 Least Mean Squares (LMS) Algorithm large λ_max implies a small stepsize
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 10 Least Mean Squares (LMS) Algorithm
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 11 Least Mean Squares (LMS) Algorithm error vector projected onto eigenvectors initial error vector projected onto eigenvectors (=projection on i-th eigenvector) small λ_i implies slow convergence λ_min <<λ_max (hence small μ) implies *very* slow convergence
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 12 Least Mean Squares (LMS) Algorithm
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 13 Least Mean Squares (LMS) Algorithm
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 14 Least Mean Squares (LMS) Algorithm
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 15 Least Mean Squares (LMS) Algorithm
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 16 Least Mean Squares (LMS) Algorithm
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 17 Least Mean Squares (LMS) Algorithm
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 18 Least Mean Squares (LMS) Algorithm
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 19 Least Mean Squares (LMS) Algorithm Skip this slide
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 20 Least Mean Squares (LMS) Algorithm Skip this slide
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 21 Least Mean Squares (LMS) Algorithm Skip this slide
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 22 Least Mean Squares (LMS) Algorithm Skip this slide
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 23 Least Mean Squares (LMS) Algorithm Skip this slide
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 24 Least Mean Squares (LMS) Algorithm Skip this slide
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 25 Least Mean Squares (LMS) Algorithm Skip this slide
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 26 Least Mean Squares (LMS) Algorithm Skip this slide
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 27 Least Mean Squares (LMS) Algorithm Skip this slide
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 28 Least Mean Squares (LMS) Algorithm Skip this slide
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 29 Least Mean Squares (LMS) Algorithm
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 30 Least Mean Squares (LMS) Algorithm
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 31 Least Mean Squares (LMS) Algorithm
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 32 Least Mean Squares (LMS) Algorithm
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 33 Least Mean Squares (LMS) Algorithm
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DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014-2015 p. 34 Least Mean Squares (LMS) Algorithm
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