A controllability problem for a class of uncertain - parameters discrete - time linear dynamic systems

In the paper a controllability problem for a class of time invariant, discrete linear SISO systems with uncertain parameters is discussed. The system under consideration is described by a finite dimensional state - space equation with an interval diagonal state matrix, an interval control matrix, the know output matrix and the two - dimensional uncertain parameters space. From the considerations shown in the paper it turns out, that the general controllability conditions for the discussed discrete system are the same as for the analogical continuous systemwith uncertain parameters. As an example the controllability problem for an interval parabolic system is discussed, numerical examples are also presented.