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Generate stable, random uss objects
Syntax
Description
usys = randuss(n)
generates an nth order single-input/single-output uncertain continuous-time system. randuss randomly selects from uncertain atoms of type 'ureal', 'ultidyn', and 'ucomplex'.
usys = randuss(n,p)
generates an nth order single-input uncertain continuous-time system with p outputs.
usys = randuss(n,p,m)
generates an nth order uncertain continuous-time system with p outputs and m inputs.
usys = randuss(n,p,m,Ts)
generates an nth order uncertain discrete-time system with p outputs and m inputs. The sample time is Ts.
usys = randuss
(without arguments) results in a 1-by-1 uncertain continuous-time uss object with up to four uncertain objects.
In general, both rand and randn are used internally. You can control the result of randuss by setting seeds for both random number generators before calling the function.
Example
The statement creates a fifth order, continuous-time uncertain system s1 of size 2-by-3. Note your display can differ because a random seed is used.
s1 = randuss(5,2,3) USS: 5 States, 2 Outputs, 3 Inputs, Continuous System CTPQV: 1x1 LTI, max. gain = 2.2, 1 occurrence IGDHN: real, nominal = -4.03, variability = [-3.74667 22.7816]%, 1 occurrence MLGCD: complex, nominal = 8.36+3.09i, +/- 7.07%, 1 occurrence OEDJK: complex, nominal = -0.346-0.296i, radius = 0.895, 1 occurrence
See Also
rand Generates uniformly distributed random numbers
randn Generates normally distributed random numbers
randatom Creates a random uncertain atom
randumat Creates a random uncertain matrix
ucomplex Creates an uncertain complex parameter
ultidyn Creates an uncertain linear time-invariant object
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