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作者：Stewart, Jacob; Ioannou, Petros
作者单位：University of Southern California
摘要：In recent years, adaptive schemes have been developed to reject sinusoidal disturbances with unknown frequencies, phases, and amplitudes. However, the analysis methods typically used are only suitable for sinusoidal disturbances with piecewise constant frequencies, ignoring smooth continuous variations. This note proposes a robust adaptive scheme to reject output disturbances dominated by sinusoidal terms with unknown time-varying frequencies. The performance is first analyzed in the ideal cas...
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作者：Tai, Ruochen; Lin, Liyong; Zhu, Yuting; Su, Rong
作者单位：Nanyang Technological University
摘要：This article investigates the synthesis of distributed attackers for distributed discrete-event systems, where the distributed attackers could implement sensor insertion/deletion/replacement attacks and actuator enablement/disablement attacks. The distributed attackers to be synthesized should fulfill the following goals: 1) Each local sensor-actuator attacker needs to remain covert against all the distributed monitors, which are used to detect the existence of attacks; and 2) the distributed ...
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作者：Andritsch, Benedikt; Watermann, Lars; Koch, Stefan; Reichhartinger, Markus; Reger, Johann; Horn, Martin
作者单位：Graz University of Technology; Technische Universitat Ilmenau; Graz University of Technology
摘要：In this article, a novel discrete-time realization of the super-twisting controller is proposed. The closed-loop system is proven to converge to an invariant set around the origin in finite time. Furthermore, the steady-state error is shown to be independent of the controller gains. It only depends on the sampling time and the unknown disturbance. The proposed discrete-time controller is evaluated comparative to previously published discrete-time super-twisting controllers by means of the cont...
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作者：Animobono, Davide; Zattoni, Elena; Scaradozzi, David; Perdon, Anna Maria; Conte, Giuseppe
作者单位：Marche Polytechnic University; University of Bologna
摘要：Switching linear systems over the max-plus algebra can be used to model production plants where different choices in resource allocation are possible. In such a case, internal and external variables represent the time instants at which internal or external events occur. In particular, output variables represent the time instants at which lots of manufactured goods are released to the market. Here, we consider the problems of system synchronization and subsynchronization, which consist of forci...
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作者：Czornik, Adam; Makarov, Evgenii K.; Niezabitowski, Michal; Popova, Svetlana; Zaitsev, Vasilii
作者单位：Silesian University of Technology; National Academy of Sciences of Belarus (NASB); Institute of Mathematics of the National Academy of Sciences of Belarus; Udmurt State University
摘要：In this article, we consider a linear discrete time-invariant control system with linear time-varying state feedback. Our main goal is to determine what types of asymptotic dynamics are possible for this system. We introduce and investigate certain discrete-time analogs for notions of global attainability, global Lyapunov reducibility, and global assignability of Lyapunov invariants currently known in the continuous-time case. We prove that uniform complete controllability of the open-loop sys...
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作者：Wang, Yongqiang; Nedic, Angelia
作者单位：Clemson University; Arizona State University; Arizona State University-Tempe
摘要：Decentralized optimization enables a network of agents to cooperatively optimize an overall objective function without a central coordinator and is gaining increased attention in domains as diverse as control, sensor networks, data mining, and robotics. However, the information sharing among agents in decentralized optimization also discloses agents' information, which is undesirable or even unacceptable when involved data are sensitive. This article proposes two gradient-based decentralized o...
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作者：Xie, Yifan; Li, Shaoyuan; Yin, Xiang
作者单位：University of Stuttgart; Shanghai Jiao Tong University; Shanghai Jiao Tong University
摘要：In this article, we investigate both qualitative and quantitative synthesis of optimal privacy-enforcing supervisors for partially observed discrete-event systems. We consider a dynamic system whose information flow is partially available to an intruder, which is modeled as a passive observer. We assume that the system has a secret that does not want to be revealed to the intruder. Our goal is to synthesize a supervisor that controls the system in a least-restrictive manner such that the close...
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作者：Wolff, Tobias M.; Lopez, Victor G.; Mueller, Matthias A.
作者单位：Leibniz University Hannover
摘要：In this article, a robust data-driven moving horizon estimation (MHE) scheme for linear time-invariant discrete-time systems is introduced. The scheme solely relies on offline collected data without employing any system identification step. We prove practical robust exponential stability for the setting where both the online measurements and the offline collected data are corrupted by nonvanishing and bounded noise. The behavior of the novel robust data-driven MHE scheme is illustrated by mean...
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作者：Fan, Ziye; Wu, Xiaoqun; Mao, Bing; Lu, Jinhu
作者单位：Wuhan University; Shenzhen University; Beihang University; Zhongguancun Laboratory
摘要：The conditions under which topological variations in networked linear dynamical systems can be discerned from their outputs are investigated. The output-indiscernible space is completely characterized without conditions imposed on the topology matrix. It is demonstrated that a topological change can be output-indiscernible even if the original and the altered topology matrices share no common eigenvalues. Furthermore, the necessary and sufficient condition for output discernibility is proposed...
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作者：Pacula, Isabella; Oishi, Meeko
作者单位：University of New Mexico
摘要：While many techniques have been developed for chance constrained stochastic optimal control with Gaussian disturbance processes, far less is known about computationally efficient methods to handle non-Gaussian processes. In this article, we develop a method for solving chance constrained stochastic optimal control problems for linear time-invariant systems with general additive disturbances with finite moments and unimodal chance constraints. We propose an open-loop control scheme for multiveh...
