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作者：Markovsky, Ivan
作者单位：Universitat Politecnica de Catalunya; Centre Internacional de Metodes Numerics en Enginyeria (CIMNE); ICREA
摘要：Nonparameteric representations of linear time-invariant systems that use Hankel matrices constructed from data are the basis for data-driven simulation and control. This article extends the approach to data-driven simulation of a class of nonlinear systems, called generalized bilinear. The generalized bilinear class includes Hammerstein, finite-lag Volterra, and bilinear systems. The key step of the generalization is an embedding result that is of independent interest. The behavior of a nonlin...
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作者：Postoyan, Romain; Sanfelice, Ricardo G.; Heemels, W. P. M. H.
作者单位：Centre National de la Recherche Scientifique (CNRS); Universite de Lorraine; University of California System; University of California Santa Cruz; Eindhoven University of Technology
摘要：Motivated by scenarioswhere the communication or the computation resources are limited, event-triggered control consists of transmitting data between the plant and the controller according to the actual system needs and not the elapsed time since the last transmission instant as in traditional sampled-data control, so that the desired control objective is achieved. A range of techniques are nowadays available to design event-triggered controllers. However, we generally have only very little in...
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作者：Ha, Wonseok; Back, Juhoon
作者单位：Kwangwoon University
摘要：This article presents a robust output feedback stabilizer for multi-input-multi-output nonlinear systems subject to external disturbances and system uncertainties. We assume that the system has a well-defined vector relative degree and the zero dynamics is input-to-state stable. Based on the assumption that there exists a state feedback controller that makes the origin of the nominal closed-loop system asymptotically stable, we present an output feedback stabilizer that recovers the stability ...
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作者：Li, Dianqiang; Li, Tao
作者单位：East China Normal University; East China Normal University
摘要：We study cooperative output feedback tracking control of stochastic linear heterogeneous leader- following multiagent systems. Each agent has a conti- nuous-time linear heterogeneous dynamics with incompletely measurable state, and there are additive and multiplicative noises along with information exchange among agents. We propose a set of admissible distributed observation strategies for estimating the leader's and the followers' states and a set of admissible cooperative output feedback con...
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作者：Wang, Bohui; Chen, Weisheng; Zhang, Bin; Shi, Peng; Zhang, Huiyan
作者单位：Xidian University; University of South Carolina System; University of South Carolina Columbia; University of Adelaide; Victoria University; Chongqing Technology & Business University
摘要：This article proposes a nonlinear observer-based approach to address the robust cooperative tracking problem and application for heterogeneous spacecraft systems. By introducing appropriate assumptions, a weight average estimation is proposed to construct a class of distributed nonlinear observers for heterogeneous spacecraft systems with a target whose dynamics are available only to a few chasers. By synthesizing the observer dynamics among the neighbors, a novel cooperative tracking controll...
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作者：Cianfanelli, Leonardo; Como, Giacomo; Ozdaglar, Asuman E.; Parise, Francesca
作者单位：Polytechnic University of Turin; Massachusetts Institute of Technology (MIT); Cornell University
摘要：We study a network design problem (NDP) where the planner aims at selecting the optimal single-link intervention on a transportation network to minimize the travel time under Wardrop equilibrium flows. Our first result is that, if the delay functions are affine and the support of the equilibrium is not modified with interventions, the NDP may be formulated in terms of electrical quantities computed on a related resistor network. In particular, we show that the travel time variation correspondi...
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作者：Koga, Shumon; Krstic, Miroslav
作者单位：University of California System; University of California San Diego; University of California System; University of California San Diego
摘要：High-relative-degree control barrier functions play a prominent role in automotive safety and in robotics. In this article, we launch a generalization of this concept for PDE control, treating a specific, physically relevant model of thermal dynamics where the boundary of the PDE moves due to a liquid-solid phase change-the so-called Stefan model. The familiar quadratic programming (QP) design is employed to ensure safety but with CBFs that are infinite-dimensional (including one control barri...
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作者：Sibai, Hussein; Mitra, Sayan
作者单位：Washington University (WUSTL); University of Illinois System; University of Illinois Urbana-Champaign
摘要：In this article, we extend the notion of estimation entropy of autonomous dynamical systems proposed by Liberzon and Mitra to nonlinear dynamical systems with uncertain inputs with bounded variation. We call this new notion the epsilon-estimation entropy of the system and show that it lower bounds the bit rate needed for state estimation. epsilon-estimation entropy represents the exponential rate of the increase of the minimal number of functions that are adequate for epsilon-approximating any...
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作者：Wetzlinger, Mark; Kochdumper, Niklas; Bak, Stanley; Althoff, Matthias
作者单位：Technical University of Munich; State University of New York (SUNY) System; Stony Brook University
摘要：Reachability analysis is a formal method to guarantee safety of dynamical systems under the influence of uncertainties. A substantial bottleneck of all reachability algorithms is the necessity to adequately tune specific algorithm parameters, such as the time step size, which requires expert knowledge. In this work, we solve this issue with a fully automated reachability algorithm that tunes all algorithm parameters internally such that the reachable set enclosure respects a user-defined appro...
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作者：Wang, Bao; Zhu, Quanxin; Li, Subei
作者单位：Hunan Normal University; Xuzhou University of Technology; Xuzhou University of Technology
摘要：The stability and stabilization problems for discrete-time semi-Markov jump linear systems with time delay are discussed. By virtue of a novel Lyapunov-Krasovskill functional and the probability structure of semi-Markov switching signal, the sufficient stability conditions for the considered systems are presented in terms of a set of linear matrix inequalities and a proper semi-Markov switching condition. Based on such conditions, the time delay and mode dependent controller can be designed to...
