Hi.
I am trying to manually calculate the discrete time form of a continuous time system using the zero order hold method.
The continuous time transfer function is:
g(s) = 4
--------------
s^2 + 4.8s + 2
The sampling time I would like to consider is Ts= 0.01
The equation I believe that I need to use is:
g(z) =
z - 1 Z[g(s)/s]
-----
z
I had attempted to derive partial fractions and solve that way but was unable to factorise the denominator.
According to Matlab the final answer should be:
g(z) = 0.0001968z + 0.0001937
------------------------
z^2 - 1.953z + 0.9531
Any help would be much appreciated!