Overflow oscillation elimination of 2-D digital filters in the roesser model with wiener process noise

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Abstract

Recently, Ahn's criteria were proposed for dealing with deterministic external interference with finite energy in two-dimensional (2-D) digital filters. However, these criteria fail for cases where the 2-D filters have stochastic noise. In this letter, we propose a new criterion for overflow oscillation elimination of 2-D digital filters in the Roesser model with Wiener process noise. The criterion guarantees the asymptotic stability as well as a 2-D expected power bound. Thus, it can ascertain the attenuation of the effect of Wiener process noise to a prescribed level. This criterion is also expressed by linear matrix inequality (LMI). A numerical example is provided to show the usefulness of the proposed result.

Original languageEnglish
Article number6844824
Pages (from-to)1302-1305
Number of pages4
JournalIEEE Signal Processing Letters
Volume21
Issue number10
DOIs
Publication statusPublished - 2014 Jan 1

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Signal Processing
  • Applied Mathematics

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