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表示为矩阵形式 (s)G2(S) (271) yn(s)」Gm(s)Gn2(s) (s)U,(s) Y2(s) Gm(s)Gn2(s)…Gnm(s) 则 S (272)表示为矩阵形式 ⚫ (2.71) 记 则 (2.72)                         =             ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) 2 1 1 2 2 1 2 2 2 1 1 1 2 1 2 1 U s U s U s G s G s G s G s G s G s G s G s G s Y s Y s Y s m m m r r r r m                    =             =             = ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) 1 2 2 1 2 2 2 1 1 1 2 1 2 1 2 1 G s G s G s G s G s G s G s G s G s G s U s U s U s U s Y s Y s Y s Y s m m m r r r m r         Y(s) = G(s)U(s)
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