Stability Analysis for Perturbed Discrete Dynamic Interval Systems with Time Delay

In this paper, the stability problem of perturbed discrete dynamic interval systems with time delay is considered, By using the properties of spectral radius and Lyapunov´s stability theory, some sufficient conditions are obtained which guarantee the robust stability of the perturbed discrete-delay dynamic interval systems. These conditions possess simple forms and provide useful tools to check stability of systems at first stage. Illustrate example is given, and the equivalent descriptions of interval matrices are also introduced.