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Transient Performance Analysis of the L1-RLS

Authors :
Wei Gao
Qunfei Zhang
Cedric Richard
Jie Chen
Shi Wentao
JiangSu University
Northwestern Polytechnical University [Xi'an] (NPU)
Joseph Louis LAGRANGE (LAGRANGE)
Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS)
COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Observatoire de la Côte d'Azur
COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)
ANR-19-CE48-0002,DARLING,Adaptation et apprentissage distribués pour les signaux sur graphe(2019)
ANR-19-P3IA-0002,3IA@cote d'azur,3IA Côte d'Azur(2019)
Source :
IEEE Signal Processing Letters, IEEE Signal Processing Letters, Institute of Electrical and Electronics Engineers, In press, ⟨10.1109/LSP.2021.3127467⟩
Publication Year :
2021
Publisher :
HAL CCSD, 2021.

Abstract

The recursive least-squares algorithm with $\ell_1$-norm regularization ($\ell_1$-RLS) exhibits excellent performance in terms of convergence rate and steady-state error in identification of sparse systems. Nevertheless few works have studied its stochastic behavior, in particular its transient performance. In this letter, we derive analytical models of the transient behavior of the $\ell_1$-RLS in the mean and mean-square sense. Simulation results illustrate the accuracy of these models.<br />Comment: 5 pages, 2 figures

Details

Language :
English
ISSN :
10709908
Database :
OpenAIRE
Journal :
IEEE Signal Processing Letters, IEEE Signal Processing Letters, Institute of Electrical and Electronics Engineers, In press, ⟨10.1109/LSP.2021.3127467⟩
Accession number :
edsair.doi.dedup.....518c552aafe0141983660f53dc157e8c