نتایج جستجو برای: discrete time

تعداد نتایج: 2000351  

Journal: :Global Journal of Researches in Engineering 2018

In this paper, a chattering-free sliding-mode control is mainly proposed in a second-order discrete-time system. For achieving this purpose, firstly, a suitable control law would be derived by using the discrete-time Lyapunov stability theory and the sliding-mode concept. Then the input constraint is taken into account as a saturation function in the proposed control law. In order to guarantee ...

Journal: :Symmetry, Integrability and Geometry: Methods and Applications 2011

In this paper, Lagrange interpolation in Chebyshev-Gauss-Lobatto nodes is used to develop a procedure for finding discrete and continuous approximate solutions of a singular boundary value problem. At first, a continuous time optimization problem related to the original singular boundary value problem is proposed. Then, using the Chebyshev- Gauss-Lobatto nodes, we convert the continuous time op...

Journal: :Journal of Dynamic Systems, Measurement, and Control 1974

Journal: :international journal of mathematical modelling and computations 0
p. vijaya laxmi department of applied mathematics, andhra university, visakhapatnam 530003, india. k. jyothsna department of applied mathematics, andhra university, visakhapatnam 530003, india.

this paper investigates a discrete-time impatient customer queue with bernoulli-schedule vacation interruption. the  vacation times and the service times during regular busy period and during working vacation period are assumed to follow geometric distribution. we obtain the steady-state probabilities at arbitrary and outside observer's observation epochs using recursive technique. cost an...

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