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作者:Zheng, Shiqi; Ahn, Choon Ki; Jiang, Xiaowei; Yan, Huaicheng; Shi, Peng
作者单位:China University of Geosciences; Korea University; East China University of Science & Technology; University of Adelaide
摘要:This article investigates the cooperative output regulation (COR) of nonlinear multiagent systems (MASs) with long input delay based on periodic event-triggered mechanism. Compared with other mechanisms, periodic event-triggered control can automatically guarantee a Zeno-free behavior and avoid the continuous monitoring of triggered conditions. First, a new periodic event-triggered distributed observer, which is based on the fully asynchronous communication data, is proposed to estimate the le...
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作者:Alsalti, Mohammad; Markovsky, Ivan; Lopez, Victor G.; Mueller, Matthias A.
作者单位:Leibniz University Hannover; Universitat Politecnica de Catalunya; Centre Internacional de Metodes Numerics en Enginyeria (CIMNE); ICREA
摘要:Nonparametric representations of dynamical systems based on the image of a Hankel matrix of data are extensively used for data-driven control. However, if samples of data are missing, obtaining such representations becomes a difficult task. By exploiting the kernel structure of Hankel matrices of irregularly measured data generated by a linear time-invariant system, we provide computational methods for which any complete finite-length behavior of the system can be obtained. For the special cas...
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作者:Luo, Shixian; Deng, Feiqi; Jiang, Yan
作者单位:Guangxi University; South China University of Technology
摘要:This article is devoted to stochastic convergence theorems for stochastic impulsive systems (SISs) and their application to discrete-time stochastic feedback control (DTSFC). A general stochastic Barb & abreve;lat's lemma, which only requires that the concerned stochastic processes are almost surely integrable rather than absolutely integrable in the sense of expectation, for piecewise continuous adapted processes is first proposed, which is truly parallel to the deterministic one. As an exten...
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作者:Ma, Ji; Yu, Xiao; Lan, Weiyao; Chen, Zhiyong
作者单位:Xiamen University; Xiamen University; University of Newcastle
摘要:This article investigates the output regulation problem of multi-input-multi-output (MIMO) linear stochastic systems and unstable linear exogenous systems. First, stochastic output regulator equations are constructed to characterize the solvability of the output regulation problem. Then, a necessary and sufficient condition on the solvability of the output regulator equation is established. Under this condition, not only the relationship between the output regulation of linear stochastic syste...
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作者:Shi, Xiongtao; Li, Yanjie; Du, Chenglong; Shi, Yang; Yang, Chunhua; Gui, Weihua
作者单位:Harbin Institute of Technology; Harbin Institute of Technology; Central South University; University of Victoria
摘要:This article addresses the consensus problem of a class of unknown nonlinear multiagent systems (MASs) under directed graphs via a novel model-free deep reinforcement learning (DRL) based fully distributed event-triggered control (ETC) method. First, the DRL-based feedback linearization approach is developed to learn an approximated linearized control protocol in a model-free manner. Then, a novel adaptive event-triggered mechanism is proposed to save more communication resources and reduce th...
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作者:Ammari, O.; Giri, F.; Krstic, M.; Benabdelhadi, A.; Chaoui, F. Z.; El Majdoub, K.
作者单位:Hassan II University of Casablanca; Universite de Caen Normandie; University of California System; University of California San Diego; Mohammed V University in Rabat
摘要:In this article, we consider the problem of observer design for heat diffusion-reaction partial differential equations (PDEs) that are monitored through delayed boundary sensor measurements. The novelty with respect to the existing observers lies in the fact that the PDE is subject to parameter uncertainties coming not only in the domain but also in the sensor. We develop an adaptive observer that provides online accurate estimates of both the state and parameter estimates. The observer design...
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作者:Bajodek, Mathieu; Lhachemi, Hugo; Valmorbida, Giorgio
作者单位:Universite Paris Saclay; Inria; Centre National de la Recherche Scientifique (CNRS)
摘要:This article reports necessary stability conditions for a parabolic partial differential equation (PDE) interconnected through the boundaries to an ordinary differential equation (ODE). We intend to propose numerical certificates for the instability of such interconnections. From one side, using spectral methods, we derive a necessary analytical condition based on root locus analysis, which can be tested in the parameters space. On the other side, using Lyapunov direct and converse approaches,...
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作者:Bistritz, Ilai; Bambos, Nicholas
作者单位:Tel Aviv University; Tel Aviv University; Stanford University; Stanford University
摘要:We consider open games where players arrive according to a Poisson process with rate lambda and stay in the game for an exponential random duration with rate mu. The game evolves in continuous time, where each player n sets an exponential random clock and updates his/her action an is an element of{0,...,K}when it expires. The players take independent actions according to local decision rules that, uninterrupted, are designed to converge to an equilibrium. When lambda is small, the game spends ...
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作者:Geromel, J. C.; Hsu, L.; Nunes, E. V. L.
作者单位:Universidade Estadual de Campinas; Universidade Federal do Rio de Janeiro
摘要:This article provides an linear matrix inequality (LMI)-based procedure for reaching time estimation of the multivariable super-twisting algorithm dealing with convex bounded parameter uncertainty and exogenous disturbances with norm-bounded time-derivative. For a class of Lyapunov functions, we are able to determine the optimal reaching time estimation that emerges from the solution of a surprisingly simple mathematical programming problem. As far as the reaching time estimation and validatio...
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作者:Moothedath, Shana; Sahabandu, Dinuka; Allen, Joey; Clark, Andrew; Bushnell, Linda; Lee, Wenke; Poovendran, Radha
作者单位:University of Washington; University of Washington Seattle; University System of Georgia; Georgia Institute of Technology; Washington University (WUSTL)
摘要:Advanced persistent threats (APTs) are stealthy attacks by intelligent adversaries. This article studies the detection of APTs that infiltrate cyber systems and compromise specifically targeted data and/or infrastructures. Dynamic information flow tracking is an information trace-based detection mechanism against APTs that tags suspicious information flows in the system and performs security analysis for unauthorized use of tagged data. In this article, we develop an analytical model for resou...