M4.2. Forming Discrete-Time Models
The formation of discrete-time models is the same as for continuous-time models, except that a sample time should also be specified. This sample time is simply the next argument in the function call statement,
sys = ss(a,b,c,d,Ts) % discrete state space sys = tf(num,den,Ts) % discrete transfer function sys = zpk(z,p,k,Ts) % discrete zero-pole-gain
where Ts is the sample time.
Discrete State Space Models
A discrete-time state space model has the form
where k represents the discrete-time step index. Consider the discrete state space model
with a sample time of Δt = 0.1 minutes. Please note that, if you need ...