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Signal Flow Graphs (SFG)

 
Mason’s Gain Formula

  • This formula determines the overall transmittance (gain) denoted by T, and is given as 592.png where 597.png is forward path transmittance of 602.pngpath from a specified input node to an output node. In asserting 607.png, no node should be encountered more than once.
    612.png, the graph determinant = 1 - (sum of all individual loop gains) + (sum of gain products of all possible combinations of two non-tounching loops) - (sum of gain products of all possible combinations of three non-tounching loops) + ....
    617.pngis the path factor associated with the concerned path & it involves all parts of SFG which are non-touching with 622.png forward path.

 





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