Generalized Dissipativity Analysis of Digital Filters With Finite-Wordlength Arithmetic
- Authors
- Ahn, Choon Ki; Shi, Peng
- Issue Date
- 4월-2016
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Digital filter; feedback interconnection; finite-wordlength arithmetic; generalized dissipativity
- Citation
- IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, v.63, no.4, pp.386 - 390
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
- Volume
- 63
- Number
- 4
- Start Page
- 386
- End Page
- 390
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/89034
- DOI
- 10.1109/TCSII.2015.2503578
- ISSN
- 1549-7747
- Abstract
- This brief investigates the generalized dissipativity of digital filters with finite-wordlength arithmetic. First, a new sufficient condition is proposed to guarantee the generalized dissipativity of single digital filters with finite-wordlength arithmetic. Unlike the existing works in the literature, this brief presents criteria for H-infinity performance, l(2)-l(infinity) performance, passivity, and (Q, S, R)-alpha-dissipativity in a unified framework. Based on this result, we examine the generalized dissipativity of feedback interconnected digital filters as well as the asymptotic stability of unforced feedback interconnected digital filters. A numerical example demonstrates the effectiveness of the obtained approach.
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