Specifications

drss
16-63
16drss
Purpose Generate stable random discrete test models
Syntax sys = drss(n)
sys = drss(n,p)
sys = drss(n,p,m)
sys = drss(n,p,m,s1,...sn)
Description sys = drss(n) produces a random n-th orderstable model with one inputand
one output, and returns the model in the state-space object
sys.
drss(n,p) produces a random n-th order stable model with one input and p
outputs.
drss(n,m,p) generates a random n-th order stable model with m inputs and p
outputs.
drss(n,p,m,s1,...sn) generates a s1–by–sn array of random n-th order
stable model with
m inputs and p outputs.
In all cases, the discrete-time state-space model or array returned by
drss has
an unspecified sampling time. To generate transfer function or zero-pole-gain
systems, convert
sys using tf or zpk.
Example Generate a random discrete LTI system with three states, two inputs, and two
outputs.
sys = drss(3,2,2)
a =
x1 x2 x3
x1 0.38630 -0.21458 -0.09914
x2 -0.23390 -0.15220 -0.06572
x3 -0.03412 0.11394 -0.22618
b =
u1 u2
x1 0.98833 0.51551
x2 0 0.33395
x3 0.42350 0.43291