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作者：Wang, Xiaoling; Su, Housheng; Zhang, Fan; Chen, Guanrong
作者单位：Nanjing University of Posts & Telecommunications; Nanjing University of Posts & Telecommunications; Huazhong University of Science & Technology; Sun Yat Sen University; City University of Hong Kong
摘要：In this article, the state estimation problem of a continuous-time linear time-invariant system is investigated for the situation with unknown external disturbance and measurement noise. A robust distributed interval observer is designed, which consists of a group of sensors communicating with others through a directed graph where each sensor can only access partial information from the output of the plant. The communication among the sensors together with the heterogeneity and undetectability...
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作者：Bisoffi, Andrea; De Persis, Claudio; Tesi, Pietro
作者单位：University of Groningen; University of Florence
摘要：For an unknown linear system, starting from noisy input-state data collected during a finite-length experiment, we directly design a linear feedback controller that guarantees robust invariance of a given polyhedral set of the state in the presence of disturbances. The main result is a necessary and sufficient condition for the existence of such a controller, and amounts to the solution of a linear program. The benefits of large and rich datasets for the solution of the problem are discussed. ...
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作者：Harandi, Mohammad Reza Jafari; Taghirad, Hamid D.
作者单位：K. N. Toosi University of Technology
摘要：Stabilization of an underactuated mechanical system may be accomplished via energy shaping. Interconnection and damping assignment passivity-based control is an approach based on total energy shaping by assigning desired kinetic and potential energy to the system. This method requires solving a partial differential equation (PDE) related to the potential energy shaping of the system. In this short article, we focus on reformulating this PDE in order to be solved easier. For this purpose, two s...
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作者：Li, Weijian; Chen, Zihan; Lou, Youcheng; Hong, Yiguang
作者单位：Southern University of Science & Technology; Huawei Technologies; Chinese Academy of Sciences; Tongji University
摘要：A weight-balanced network plays an important role in the exact convergence of a distributed optimization algorithm, but is not always satisfied in practice. Different from most of existing works focusing on designing distributed algorithms, in this article, we analyze the convergence of a well-known distributed projected subgradient algorithm over time-varying general graph sequences, i.e., the weight matrices of the network are only required to be row stochastic instead of doubly stochastic. ...
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作者：Liu, Fengjiao; Wang, Lili; Fullmer, Daniel; Morse, A. Stephen
作者单位：University System of Georgia; Georgia Institute of Technology; University of California System; University of California Irvine; Yale University
摘要：In this article it is established that any jointly controllable, jointly observable, multichannel, discrete or continuous time linear system with a strongly connected neighbor {communication} graph can be exponentially stabilized with any pre-specified convergence rate using a time-invariant distributed linear control. As an illustration of how this finding can be used to deal with certain distributed tracking problems, a solution is given to a distributed set-point control problem for a conti...
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作者：Liu, Shenyu; Martinez, Sonia; Cortes, Jorge
作者单位：University of California System; University of California San Diego; Beijing Institute of Technology; University of California System; University of California San Diego
摘要：This article studies cyber-physical systems modeled with linear dynamics subject to attacks on the parameters. The attacker knows at all times the defense employed and injects a destabilizing piecewise Lipschitz time-varying attack signal. The defender does not know the specific attack and aims to preserve system stability. We propose a partitioning strategy for the set of possible attacks that generates a finite collection of candidate defenses such that, for each member of the partition, the...
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作者：Mattioni, Andrea; Wu, Yongxin; Le Gorrec, Yann
作者单位：Communaute Universite Grenoble Alpes; Institut National Polytechnique de Grenoble; Universite Grenoble Alpes (UGA); Centre National de la Recherche Scientifique (CNRS)
摘要：In this technical note, we consider the stability properties of a viscously damped Timoshenko beam equations with spatially varying parameters. With the help of the port-Hamiltonian framework, we first prove the existence of solutions and show, by the use of an appropriate Lyapunov function, that the system is exponentially stable and has an explicit decay rate. The explicit exponential bound is computed for an illustrative example for which we provide some numerical simulations.
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作者：Wang, Mengzhi; Cheng, Peng; Zhang, Zhenyong; Wang, Mufeng; Chen, Jiming
作者单位：Zhejiang University; Guizhou University; Zhejiang University
摘要：This article is concerned with periodic event-triggering laws in robust model predictive control (MPC) for continuous-time constrained nonlinear systems. The online optimal control problem solved at triggering times is introduced. A periodic static event-triggering condition, in which a fixed sampling time interval plays an important role in avoiding Zeno behavior, is presented to alleviate continuous checking of event detections. Then, a periodic dynamic event-triggering condition is investig...
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作者：Zheng, Wei; Jung, Taeho; Lin, Hai
作者单位：University of Notre Dame; University of Notre Dame
摘要：The one-sided two-player zero-sum partially observable stochastic games (OTZ-POSG) have emerged as popular models recently, especially in the cyber-security literature. In this game, the state is hidden for one player but directly observed by the other player for whom we call the informed player. All existing OTZ-POSG models assumed that the observation space is discrete and the action of the informed player is private. However, these assumptions may become invalid in real applications. For ex...
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作者：Zou, Lei; Wang, Zidong; Shen, Bo; Dong, Hongli
作者单位：Donghua University; Brunel University; Northeast Petroleum University; Northeast Petroleum University
摘要：This article is concerned with the secure state estimation problem for a networked system with multirate measurements. The measurement data are transmitted to the estimator over a communication network, where an eavesdropper could intercept the transmitted information and generate the state estimates based on the overheard signals. In order to protect the privacy of the system state from information leakage, a novel encryptor is proposed to encrypt the measurement signals into codewords before...
