5)*(s+3)]/((s+3)*(s+4)*(s+5)) Zero/pole/gain from input to output... 3 (s+12) #1: ----------------- (s+3) (s+4) (s+5) 4 (s+5) (s+3) #2: ----------------- (s+3) (s+4) (s+5) 1.3 给定系统的状态空间表达式, ?? 2.8 1.4 0 0 1 1.4 0 0 0 0 ( ) ( ) ( ) 1.8 0.3 1.4 0.6 1 0 0 0.6 0 0 ( ) 0 0 0 1 ( ) x t x t u t y t x t ?? ?? ????? ????? ???? ??? ???? ????? ????? ????????建立系统的状态空间模型。>> a=[-2.8,-1.4,0,0;1.4,0,0,0;-1.8,-0.3,-0.4,-0.6;0,0,0.6,0]; >> b=[1;0;1;0]; >> c=[0,0,0,1];d=zeros(1,1);g=ss(a,b,c,d) a=x1x2x3x4 x1 -2.8 -1.4 00 x21.4 000 x3 -1.8 -0.3 -0.4 -0.6 x4000.6 0 b=u1 x11x20x31x40c=x1x2x3x4 y10001
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