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I need to get the result for a unit step input at 0 s and a unit negative step disturbance at 25 s. But I am not understanding how to give the input

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Manideep Reddy
Manideep Reddy on 13 Jul 2020
Answered: Priyanshu Mishra on 28 Jul 2020
This is my code. I am not understanding how to give the step input at t=0 and the unit negative step disturbance at 25s.
s = tf('s');
Gc = 0.96*(1.+0.34*s);
Gc.InputName = 'e';
Gc.OutputName = 'u';
Gmleft1 = 1/s;
Gmleft1.Inputname = 'u';
Gmleft1.OutputName = 'a';
Gmleft2 = exp(-s);
Gmleft2.Inputname = 'a';
Gmleft2.OutputName = 'b';
Gmright1 = 1/s;
Gmright1.Inputname = 'f';
Gmright1.OutputName = 'g';
Gmright2 = exp(-s);
Gmright2.Inputname = 'g';
Gmright2.OutputName = 'y';
Gd = 0.96*(1.+0.34*s);
Gd.InputName = 'y1';
Gd.OutputName = 'y2';
d = 0;
S1 = sumblk('r1 = r - y1');
S2 = sumblk('e = r1 - a');
S3 = sumblk('c = u - y2');
S4 = sumblk('f = d + c');
S5 = sumblk('y1 = y - b');
T = connect(Gc,Gmleft1,Gmleft2,Gmright1,Gmright2,S1,S2,S3,S4,S5,{'r'},'y');

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