Hankel Norm Performance of Digital Filters Associated with Saturation

Choon Ki Ahn, Peng Shi

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

This brief proposes a new approach to the examination and reduction of the undesired memory effect of digital filters joined with saturation, which is known as system ringing. A new criterion is established to ascertain the Hankel norm performance of digital filters joined with saturation. Using this criterion, it is possible to check the reduction of undesired responses of the filters to past excitations. The asymptotic stability for the digital filters is ensured without external input under the proposed criterion. Three improved criteria for the Hankel norm performance of digital filters are also presented based on the diagonally dominant matrix approach. A numerical simulation shows the usefulness of the developed method.

Original languageEnglish
Article number7544615
Pages (from-to)720-724
Number of pages5
JournalIEEE Transactions on Circuits and Systems II: Express Briefs
Volume64
Issue number6
DOIs
Publication statusPublished - 2017 Jun 1

Keywords

  • Digital filter
  • Hankel norm performance
  • memory effect
  • saturation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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