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Commuting operations on signal-flow graphs for visualization of interconnected systems
LuleƄ University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
2011 (English)In: 4th IFAC Symposium on System, Structure and Control: Ancona Italy, 15-17 September 2010, New York: Curran Associates, Inc., 2011, 138-145 p.Conference paper (Refereed)
Abstract [en]

We explore the signal flow graph as a setup for visualizing and analyzing interconnected systems. Two operations for facilitating interpretation of signal flow graphs are defined. These are hiding of unimportant nodes and elimination of self-references and it is shown that the operations commute under some conditions and that the hiding operation preserves the physical structure of the system in a certain sense. Also, the Loop Gain Index (LGI) is introduced as a measure of the relative importance of the edges in terms of dynamic behavior of the interconnected system. The LGI isillustrated with a numerical example.

Place, publisher, year, edition, pages
New York: Curran Associates, Inc., 2011. 138-145 p.
, I F A C Workshop Series, ISSN 1474-6670
Research subject
Control Engineering
URN: urn:nbn:se:ltu:diva-29367DOI: 10.3182/20100915-3-IT-2017.00037Local ID: 2d22a9d0-84f3-11df-8806-000ea68e967bISBN: 9781617825545OAI: diva2:1002590
IFAC Symposium on System, Structure & Control : 15/09/2010 - 17/09/2010
Validerad; 2010; 20110310 (ysko)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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