Electrical and Electronic Engineering - Research Publications

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Author: Kameneva, Tatiana × Author: Nesic, Dragan × End date: 2010 × Start date: 2009 × Type: Journal Article ×

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    Robustness of nonlinear control systems with quantized feedback
    Kameneva, T ; Nesic, D (ELSEVIER SCI LTD, 2010-05-01)
    This paper analyzes the stability of nonlinear systems with quantized feedback in the presence of exogenous disturbances. This paper is an extension of [D. Liberzon, D. Nešić, Input-to-state stabilization of linear systems with quantized state measurements, IEEE Trans. Automat. Control 52 (2007), 413-436] to nonlinear systems. Under appropriate assumptions using a nonlinear modification of the scheme proposed in [D. Liberzon, D. Nešić, Input-to-state stabilization of linear systems with quantized state measurements, IEEE Transactions on Automat. Control 52 (2007), 413-436], it is shown here that it is possible to achieve input-to-state and nonlinear gain l 2 stability for nonlinear systems with quantized feedback.
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    Robustness of quantized control systems with mismatch between coder/decoder initializations
    Kameneva, T ; Nesic, D (PERGAMON-ELSEVIER SCIENCE LTD, 2009-03-01)
    This paper analyzes the stability of linear systems with quantized feedback in the presence of mismatch between the initial conditions at the coder and decoder. Under the assumption of the perfect channel, we show that using the scheme proposed in [Liberzon, D., & Nešić, D. (2007). Input-to-state stabilization of linear systems with quantized state measurements. Institute of Electrical and Electronic Engineers Transaction on Automatic Control, 52, 767-781] it is possible to achieve stability with exponential convergence of linear systems with quantized feedback when the coder and decoder are initialized at different initial conditions.