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Overflow Oscillation Elimination of 2-D Digital Filters in the Roesser Model with Wiener Process Noise

Authors
Ahn, Choon Ki
Issue Date
10월-2014
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Keywords
Finite wordlength effect; linear matrix inequality (LMI); two-dimensional (2-D) digital filter; Wiener process noise
Citation
IEEE SIGNAL PROCESSING LETTERS, v.21, no.10, pp.1302 - 1305
Indexed
SCIE
SCOPUS
Journal Title
IEEE SIGNAL PROCESSING LETTERS
Volume
21
Number
10
Start Page
1302
End Page
1305
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/97290
DOI
10.1109/LSP.2014.2333532
ISSN
1070-9908
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.
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Ahn, Choon ki
공과대학 (전기전자공학부)
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