MATLAB: How to bode plot function.

bodecontroltheory

please help me bode plot this:

Best Answer

Option 1:

s=tf('s');
G = 200*(s+0.4)*exp(-0.1*s)/s/s/(s+10)^2;
bode(G)

Option 2:

G = tf(200*[1 0.4],conv(conv([1 10],[1 10]),[1 0 0]) );
G.InputDelay=0.1;
bode(G)

Related Solutions

MATLAB: Bode Plot – trasnfer function

Try this (your code slightly edited):

s = tf('s');
G = ((1+s*1E-3))/((s*1E-2)*(1+s*1E-1)*(1+s*1E-5));
bode(G)                                                 % Plot Only
[mag,phase,wout] = bode(G);                             % Information Only

See the documentation for the bode fucntion for details.

MATLAB: Error plotting bode diagram of a transfer function inside a matrix

That is not the error.

The error is that you are using the Symbolic Math Toolbox when you need to be using the Control System Toolbox.

Try this:

s = tf('s');
G11=s-1;G12=s;
G21=-6;G22=s-2;
den=1.25*(s+1).*(s+2);
G=[G11, G12;G21, G22]/den;
G1=G(1,1);
G2=G(1,2);
G3=G(2,1);
G4=G(2,2);
bode(G1)

Best Answer

Related Solutions

MATLAB: Bode Plot – trasnfer function

MATLAB: Error plotting bode diagram of a transfer function inside a matrix

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