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作者：Fotiadis, Filippos; Vamvoudakis, Kyriakos. G.
作者单位：University System of Georgia; Georgia Institute of Technology
摘要：In this article, we consider a game-theoretic framework for cyber-physical systems, where a defender develops a mitigation strategy against an intelligent attacker who exploits the system's uncertainty to remain undetected. The goal of the defender is to optimize a performance cost constructed specifically to account for robustness against stealthy attacks so that the system is regulated. Conversely, the goal of the attacker is to disrupt the system's performance by leveraging its significant ...
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作者：Mulagaleti, Sampath Kumar; Bemporad, Alberto; Zanon, Mario
作者单位：IMT School for Advanced Studies Lucca
摘要：Linear models with additive unknown-but-bounded input disturbances are extensively used to model uncertainty in robust control system design. Typically, the disturbance set is either assumed to be known a priori or estimated from data through set-membership identification. However, the problem of computing a suitable input disturbance set in case the set of possible output values is assigned a priori has received relatively little attention. This problem arises in many contexts, such as in sup...
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作者：Varma, Vineeth Satheeskumar; Postoyan, Romain; Quevedo, Daniel E.; Morarescu, Irinel-Constantin
作者单位：Centre National de la Recherche Scientifique (CNRS); Universite de Lorraine; Queensland University of Technology (QUT)
摘要：We present an emulation-based controller and transmission policy design procedure for nonlinear wireless networked control systems. The objective is to ensure the stability of the closed-loop system, in a stochastic sense, together with given control performance, while minimizing the average power used for communications. The controller is designed by emulation, i.e., ignoring the network, and the transmission power is given by threshold policies. These policies involve waiting a given amount ...
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作者：Chapman, Margaret P. P.; Fauss, Michael; Smith, Kevin M. M.
作者单位：University of Toronto; Princeton University; Tufts University
摘要：The popularity of Conditional Value-at-Risk (CVaR), a risk functional from finance, has been growing in the control systems community due to its intuitive interpretation and axiomatic foundation. We consider a nonstandard optimal control problem in which the goal is to minimize the CVaR of a maximum random cost subject to a Borel-space Markov decision process. The objective represents the maximum departure from a desired operating region averaged over a given fraction of the worst cases. This ...
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作者：Tavazoei, Mohammad Saleh
作者单位：Sharif University of Technology
摘要：It is known that discrete-time controllers, whose state matrices have no noninteger element, are beneficial in homomorphic-based encrypted control systems. Nevertheless, it has been recently shown that possessing state matrices with integer elements usually yields unstable discrete-time controllers. In this article, we investigate the problem from a nonminimality perspective. It is shown that nonminimal realizations, in comparison to minimal ones, can theoretically provide a wider framework to...
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作者：Wang, Peng-Biao; Ren, Xue-Mei; Zheng, Dong-Dong
作者单位：Beijing Institute of Technology
摘要：This article investigates the event-triggered model predictive control (ETMPC) problem for nonlinear systems with the bounded disturbance. First, a novel adaptive event-triggered mechanism without Zeno behaviors, in which the triggering threshold can constantly be adjusted with the change of the system state, is proposed for computational load reduction. Then, an adaptive prediction horizon update strategy is proposed to further reduce the computational complexity of the optimization problem a...
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作者：Goebel, Rafal
作者单位：Loyola University Chicago
摘要：Nonlinear discrete-time switching systems under mode-dependent switching and dwell-time constraints are modeled by difference inclusions. Novel proofs of converse Lyapunov results are obtained for the switching systems as consequences of a converse Lyapunov result for a difference inclusion.
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作者：Li, Xiaoyu; Wu, Yuhu; Zhu, Jiandong
作者单位：Nanjing University of Posts & Telecommunications; Dalian University of Technology; Nanjing Normal University
摘要：In this article, we consider a rendezvous problem for the generalized Cucker-Smale model, which is a double-integrator multiagent system, on complete Riemannian manifolds. With the help of the covariant derivative, parallel transport, and logarithm map on the Riemannian manifold, we design a rendezvous feedback law that enables all agents to converge at a given target in the Riemannian manifold, under some a priori conditions. Furthermore, we consider three concrete complete Riemannian manifol...
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作者：Liu, Hao; Li, Yuzhe; Han, Qing-Long; Raissi, Tarek
作者单位：Shenyang Aerospace University; Northeastern University - China; Swinburne University of Technology; heSam Universite; Conservatoire National Arts & Metiers (CNAM)
摘要：In this article, a novel proactive attack defense strategy is proposed to deal with the secure remote estimation issue in cyber-physical systems with unknown-but-bounded noises in the presence of man-in-the-middle attacks. It is assumed that the residue calculated by the smart sensor is sent to the remote estimator and the abnormal intrusion detector via a wireless network, and the watermark is assumed to belong to a zonotope. In order to guarantee the detection rate, the data processes and th...
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作者：Merco, Roberto; Ferrante, Francesco; Sanfelice, Ricardo G.; Pisu, Pierluigi
作者单位：Clemson University; University of Perugia; University of California System; University of California Santa Cruz
摘要：feedback control design for linear time -invariant systems in the presence of sporadic measurements and exogenous perturbations is addressed. To cope with the sporadic availability of measurements of the output, a hybrid dynamic out-put feedback controller equipped with a holding device whose state is reset when a new measurement is available is designed. The closed-loop system, resulting from the interconnection of the controller and the plant, is augmented with a timer variable trig-gering t...
