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Browse Journals & Magazines > Education, IEEE Transactions ...> Volume:44 Issue:2 Help

Signal-flow graphs: direct method of reduction and MATLAB implementation

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3 Author(s)
Teixeira, M.C.M. ; Dept. of Electr. Eng., UNESP, Brazil ; Marchesi, H.F. ; Assuncao, E.

Block diagrams and signal-flow graphs are used to represent and to obtain the transfer function of interconnected systems. The reduction of signal-flow graphs is considered simpler than the reduction of block diagrams for systems with complex interrelationships. Signal-flow graphs reduction can be made without graphic manipulations of diagrams, and it is attractive for a computational implementation. In this paper, the authors propose a computational method for direct reduction of signal-flow graphs. This method uses results presented in this paper about the calculation of literal determinants without symbolic mathematics tools. The Cramer's rule is applied for the solution of a set of linear equations. A program in MATLAB language for reduction of signal-flow graphs with the proposed method is presented

Published in:
Education, IEEE Transactions on  (Volume:44 ,  Issue: 2 )

Date of Publication: May 2001

Page(s):
185 - 190
ISSN :
0018-9359
INSPEC Accession Number:
6980747
Digital Object Identifier :
10.1109/13.925833
Product Type:
Journals & Magazines
Date of Current Version :
07 August 2002
Issue Date :
May 2001
Sponsored by :
IEEE Education Society

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