Robust affine projection algorithm using selectively shrunk error component

Seung Hun Kim, Jae Jin Jeong, Gyogwon Koo, Sang Woo Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

A novel robust affine projection algorithm (APA) is proposed, which selectively shrinks error components in an error vector according to their individual possibilities of being interrupted by the impulsive noise. In existing robust APAs, if there exists only one error component interrupted by the impulsive noise, all error components of an error vector are shrunk using common step sizes which are inversely proportional to the norm of the error vector. This improper scaling results in performance degradation with a high impulsive noise probability and projection order. In this paper, we derive a modified minimization criterion considering the individual possibilities of error components from a geometric interpretation. For a wide range of impulsive noise probability and a high projection order, the performance of the proposed algorithm is verified in various system identification events including an abrupt system change. The proposed algorithm showed the fastest convergence rate and the lowest steady-state mean square deviation compared to the previous robust APAs and a recent variable step-size affine projection sign algorithm.

Original languageEnglish
Title of host publicationICINCO 2015 - 12th International Conference on Informatics in Control, Automation and Robotics, Proceedings
EditorsJoaquim Filipe, Joaquim Filipe, Kurosh Madani, Oleg Gusikhin, Jurek Sasiadek
PublisherSciTePress
Pages511-516
Number of pages6
ISBN (Electronic)9789897581229
DOIs
StatePublished - 2015
Event12th International Conference on Informatics in Control, Automation and Robotics, ICINCO 2015 - Colmar, Alsace, France
Duration: 21 Jul 201523 Jul 2015

Publication series

NameICINCO 2015 - 12th International Conference on Informatics in Control, Automation and Robotics, Proceedings
Volume1

Conference

Conference12th International Conference on Informatics in Control, Automation and Robotics, ICINCO 2015
Country/TerritoryFrance
CityColmar, Alsace
Period21/07/1523/07/15

Keywords

  • Adaptive filter
  • Affine projection sign algorithm
  • Impulsive noise
  • Variable step-size

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