Stability analysis for linear switched time-delay systems with unstable subsystems

This paper considers the problem of stabilization of linear switched time-delay systems which contain unstable subsystems. Stability conditions are derived by applying a model transformation and adopting the weighting matrix method in the derivative of the Lyapunov function, such that the system is asymptotically stable. The resulting delay dependent stability criteria are less conservative compared to the work in the literature. Simulation examples illustrate the effectiveness of the proposed method.