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作者：Zhao, Rui; Zuo, Zhiqiang; Shi, Yang; Wang, Yijing; Zhang, Wentao
作者单位：Tianjin University; University of Victoria; Nanyang Technological University; Nanyang Technological University
摘要：This article studies the security problem for switched systems when the sensor-to-controller and controller-to-actuator channels are compromised by cooperative attacks. The attack is expected to be as stealthy as possible, regardless of whether system mode is eavesdropped or not. The conditions that the attack sequence needs to meet are given, along with the stealthy guarantee when the attacker has access to system mode information. It is shown that whenever the mode is unknown, the correspond...
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作者：De Persis, Claudio; Postoyan, Romain; Tesi, Pietro
作者单位：University of Groningen; University of Groningen; Centre National de la Recherche Scientifique (CNRS); Universite de Lorraine; University of Florence
摘要：We present a data-based approach to design event-triggered state-feedback controllers for unknown continuous-time linear systems affected by disturbances. By an event, we mean state measurements transmission from the sensors to the controller over a digital network. By exploiting a sufficiently rich finite set of noisy state measurements and inputs collected off-line, we first design a data-driven state-feedback controller to ensure an input-to-state stability property for the closed-loop syst...
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作者：Zhang, Yuan; Xia, Yuanqing; Wang, Gang; Zhang, Jinhui
作者单位：Beijing Institute of Technology; Zhongyuan University of Technology
摘要：This article proposes a novel notion termed perturbation-tolerant structural controllability (PTSC) to study the generic property of controllability preservation/resilience of structured linear systems under structured perturbations. A structured system is said to be PTSC with respect to a perturbation structure if for almost all controllable realizations of this system, there are no complex-valued perturbations obeying the zero/nonzero pattern prescribed by the perturbation structure that can...
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作者：Zhang, Kai; Zhou, Bin; Hou, Mingzhe; Duan, Guang-Ren
作者单位：Harbin Institute of Technology; Harbin Institute of Technology
摘要：This article aims to solve the global practical prescribed-time stabilization problem of a class of nonlinear systems by bounded static and dynamic event-triggered control (ETC) and self-triggered control (STC) algorithms with a tradeoff performance. First, a static event-triggered mechanism is designed to update the control law based on the parametric Lyapunov equation containing a time-varying parameter that will approach to infinity at the prescribed settling time. This method can achieve t...
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作者：Nguyen, Hoai-Nam
作者单位：IMT - Institut Mines-Telecom; Institut Polytechnique de Paris; Telecom SudParis
摘要：Recently, a new Lyapunov function based on the convex hull of ellipsoids was introduced for the study of uncertain and/or time-varying linear discrete-time systems with/without constraints. The new Lyapunov function has many attractive features such as: 1) the associated ellipsoids are not required to be robustly invariant; 2) the design conditions are formulated as linear matrix inequality constraints. The control law is obtained by solving a convex optimization problem online. This optimizat...
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作者：Zhang, Zhengqiang; Fang, Qin; Chen, Xinkai
作者单位：Qufu Normal University; Shibaura Institute of Technology
摘要：This article focuses on the equilibrium regulation problem of a class of uncertain linear systems with stochastic input delay, where the delay is modeled as a Markov process with finite states. Our approach is based on the partial differential equation backstepping method. We first consider the Markov delay with finite known states. An adaptive controller is designed to achieve global almost sure asymptotic convergence. Then, the Markov delay with finite unknown states is discussed. Owing to t...
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作者：Chen, Yu-Jiao; Li, Xu-Guang; Fan, Gao-Xia; Zhang, Yingwei
作者单位：Northeastern University - China
摘要：This article considers the consensus of a general class of second-order multiagent systems (MASs) with time delays, where the controller is of the common proportional and derivative (PD) type. All the delay and the controller gains are treated as free parameters in this article, and our objective is to develop a parameter-space approach that has not been reported in the literature. First, we adopt the complete stability analysis w.r.t. delay under a given PD controller for the corresponding ch...
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作者：Dalin, Omri; Ofir, Ron; Bar-Shalom, Eyal; Ovseevich, Alexander; Bullo, Francesco; Margaliot, Michael
作者单位：Tel Aviv University; University of California System; University of California Santa Barbara
摘要：Compound matrices have found applications in many fields of science including systems and control theory. In particular, a sufficient condition fork-contraction is that a logarithmic norm (also called matrix measure)of the k-additive compound of the Jacobian is uniformly negative. However, this computation may be difficult to perform analytically and expensive numerically because the k-additive compound of an n x n matrix has dimensions((n)(k))x((n)(k)). This article establishes a duality rela...
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作者：Hu, Zhipei; Deng, Feiqi; Su, Yongkang; Luo, Shixian; Liu, Yu; Chen, Kai
作者单位：Shantou University; South China University of Technology; Guangxi University; South China University of Technology
摘要：In this article, we study the stability analysis and $H_\infty$ controller synthesis problems for networked systems with random transmission delays and packet dropouts that are subject to noisy sampling intervals. The sampling errors and transmission delays are described by an independent and identically distributed sequence of continuous random variables and the transmission delays are assumed to be smaller than the noisy sampling intervals. First, a closed-loop discrete-time stochastic frame...
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作者：Zhang, Ying; Su, Youfeng; Cai, He
作者单位：Fuzhou University; South China University of Technology
摘要：This article studies the sampled-data cooperative output regulation problem for linear multiagent systems. First, a novel adaptive distributed continuous-discrete observer is established to recover the leader's state, which, on one hand, only relies on the sampling output of the leader, and on the other hand, does not need to store the sampled message from neighbors. Second, by solely making use of the digital states of both the agent and the distributed observer, a certainty equivalence contr...
