Specifications

tf
16-221
Transfer function from input "current" to output...
p + 1
torque: -------------
p^2 + 2 p + 2
1
ang. velocity: -
p
Note how setting the 'variable' property to 'p' causes the result to be
displayed as a transfer function of the variable .
Example 2
To use a rational expression to create a SISO TF model, type
s = tf('s');
H = s/(s^2 + 2*s +10);
This produces the same transfer function as
h = tf([1 0],[1 2 10]);
Example 3
Specify the discrete MIMO transfer function
with common denominator and sample time of 0.2 seconds.
nums = {1 [1 0];[-1 2] 3}
Ts = 0.2
H = tf(nums,[1 0.3],Ts) % Note: row vector for common den. d(z)
Example 4
Computethetransferfunction ofthe state-spacemodel with thefollowing data.
p
Hz
()
1
z 0.3+
-----------------
z
z 0.3+
-----------------
z– 2+
z 0.3+
-----------------
3
z 0.3+
-----------------
=
dz
()
z 0.3+=