The application of different Lyapunov-like functionals and some aggregate norm approximations of the delayed states for finite-time stability analysis of linear discrete time-delay systems |
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| Authors: | Sreten B Stojanovic Dragutin Lj Debeljkovic Dragan S Antic |
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| Institution: | 1. University of Nis, Faculty of Technology, 16000 Leskovac, Serbia;2. University of Belgrade, Faculty of Mechanical Engineering, 11000 Belgrade, Serbia;3. University of Nis, Faculty of Electronic Engineering, 18000 Nis, Serbia |
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| Abstract: | In this paper, the problem of finite-time stability analysis for linear discrete time-delay systems is studied. By using the classical Lyapunov-like functional and Lyapunov-like functionals with power or exponential functions, some sufficient conditions for finite-time stability of such systems are proposed in the form of the linear matrix inequalities. The six aggregate norm approximations of the delayed states are introduced to establish the relations between the classical Lyapunov-like functional and its difference. To further reduce the conservatism of stability criteria, three inequalities with delayed states for the estimation of Lyapunov-like functional are proposed. A numerical example is included to illustrate the effectiveness and advantage of the proposed methods. |
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