An Improved Local Stability Criterion for Digital Filters with Interference and Overflow Nonlinearity

Priyanka Kokil, Srinivasulu Jogi, Choon Ki Ahn, Haranath Kar

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This brief presents an improved local stability condition for digital filters with saturation overflow nonlinearities and external interference. This brief analyzes the local stability characteristics of digital filters with zero external interference and achieves the H∞ performance level with external interference. The proposed criterion is shown to be an improvement over an existing criterion in the literature. Numerical examples are provided to show the usefulness of the established criterion.

Original languageEnglish
Article number8721514
Pages (from-to)595-599
Number of pages5
JournalIEEE Transactions on Circuits and Systems II: Express Briefs
Volume67
Issue number3
DOIs
Publication statusPublished - 2020 Mar 1

Keywords

  • Asymptotic stability
  • external interference
  • linear matrix inequality (LMI)
  • overflow oscillation
  • saturation arithmetic

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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