DSPCIS Chapter13 Least Mean Squares LMS Algorithm Marc

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DSP-CIS Chapter-13: Least Mean Squares (LMS) Algorithm Marc Moonen Dept. E. E. /ESAT-STADIUS, KU

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/

Part-III : Optimal & Adaptive Filters Chapter-11 : Optimal & Adaptive Filters - Intro

Part-III : Optimal & Adaptive Filters Chapter-11 : Optimal & Adaptive Filters - Intro • General Set-Up • Applications • Optimal (Wiener) Filters – : Least Squares & Recursive Least Squares Estimation Chapter-12 • Least Squares Estimation • Recursive Least Squares (RLS) Estimation • Square-Root Algorithms – : Least Means Squares (LMS) Algorithm Chapter-13 • LMS/NLMS : Stochastic Gradient Algorithms • LMS analysis • LMS Family Chapter-14 – : Fast Recursive Least Squares Algorithms Chapter-15 : Kalman Filtering DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 2

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 3

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 4

Least Mean Squares (LMS) Algorithm (Widrow 1965 !!) DSP-CIS / Chapter-13 : Least Mean

Least Mean Squares (LMS) Algorithm (Widrow 1965 !!) DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 5

Least Mean Squares (LMS) Algorithm Bernard Widrow https: //www. youtube. com/watch? v=hc 2 Zj

Least Mean Squares (LMS) Algorithm Bernard Widrow https: //www. youtube. com/watch? v=hc 2 Zj 55 j 1 z. U DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 6

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 7

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 8

Least Mean Squares (LMS) Algorithm large λ_max implies a small stepsize DSP-CIS / Chapter-13

Least Mean Squares (LMS) Algorithm large λ_max implies a small stepsize DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 9

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 10

Least Mean Squares (LMS) Algorithm error vector projected onto eigenvectors initial error vector projected

Least Mean Squares (LMS) Algorithm error vector projected onto eigenvectors initial error vector projected onto eigenvectors (=projection on i-th eigenvector) DSP-CIS small λ_i implies slow convergence / Chapter-13 Mean Squares (LMS)small Algorithm Version 2014 -2015 λ_min: Least <<λ_max (hence μ) /implies *very* slow convergence p. 11

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 12

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 13

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 14

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 15

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 16

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 17

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 18

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 19

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 20

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 21

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 22

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 23

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 24

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 25

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 26

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 27

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean

Skip this slide Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 28

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 29

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 30

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 31

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 32

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 33

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm

Least Mean Squares (LMS) Algorithm DSP-CIS / Chapter-13 : Least Mean Squares (LMS) Algorithm / Version 2014 -2015 p. 34