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

被引:6
作者
Teixeira, MCM [1 ]
Marchesi, HF [1 ]
Assunçao, E [1 ]
机构
[1] Univ Estadual Paulista, UNESP, Fac Engn Ilha Solteira, Dept Elect Engn, BR-15385000 Ilha Solteira, SP, Brazil
关键词
Mason's rule; signal-flow graphs; symbolic calculations; transfer functions;
D O I
10.1109/13.925833
中图分类号
G40 [教育学];
学科分类号
040101 ; 120403 ;
摘要
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.
引用
收藏
页码:185 / 190
页数:6
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