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作者：Pereira, Ricardo; Rocha, Paula; Ntogramatzidis, Lorenzo
作者单位：Universidade de Aveiro; Universidade do Porto; Curtin University
摘要：In this article, we study the problem of estimation in the presence of disturbances within the context of the behavioral approach developed by J.C. Willems. For this purpose, we use the behavioral theory of observers introduced by Valcher, Willems, Trentelman, and Trumpf, combined with the notions of behavioral invariance, conditioned invariance, and behavioral detectability subspaces. With these tools, we provide necessary and sufficient conditions for the solvability of the aforementioned pr...
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作者：Shen, Dong; Qu, Ganggui; Yu, Xinghuo
作者单位：Renmin University of China; Beijing University of Chemical Technology; Royal Melbourne Institute of Technology (RMIT)
摘要：With the wide use of networks in repetitive systems, channels between a plant and a controller may experience random fading, which is a common problem in long-distance wireless communication. However, the control problem over fading channels is far from resolved. In this article, we investigate learning control over fading channels to gradually improve tracking performance. We observe that the effect of fading on input transmission greatly compromises tracking ability in practical implementati...
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作者：Mei, Zhan-Dong; Zhou, Hua-Cheng
作者单位：Xi'an Jiaotong University; Central South University
摘要：In this article, we study the output feedback exponential stabilization of a one-dimensional wave equation with control matched nonlinear disturbance. The well posedness of the open-loop system, which is essentially important for the designs of observer and controller, is verified. By designing an infinite-dimensional unknown input state observer in place of the conventional extended state observer, we estimate the total disturbance in real time. Moreover, we prove the convergence of the distu...
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作者：Montijano, Eduardo; Oliva, Gabriele; Gasparri, Andrea
作者单位：University of Zaragoza; University Campus Bio-Medico - Rome Italy; Roma Tre University
摘要：Measures of node centrality that describe the importance of a node within a network are crucial for understanding the behavior of social networks and graphs. In this article, we address the problems of distributed estimation and control of node centrality in undirected graphs with asymmetric weight values. In particular, we focus our attention on alpha-centrality, which can be seen as a generalization of eigenvector centrality. In this setting, we first consider a distributed protocol where ag...
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作者：Pham Huu Anh Ngoc; Le Trung Hieu
作者单位：Vietnam National University Ho Chi Minh City (VNUHCM) System
摘要：We present a novel approach to the mean square exponential stability of stochastic delay differential equations. Consequently, some new explicit criteria for the mean square exponential stability of general nonlinear stochastic delay differential equations are derived. Both delay-independent and delay-dependent stability criteria are given, and illustrative examples are also provided.
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作者：Zhang, Zhaorong; Cai, Qianqian; Fu, Minyue
作者单位：University of Newcastle; Guangdong University of Technology
摘要：This article proposes a new distributed algorithm for solving linear systems associated with a sparse graph under a generalized diagonal dominance assumption. The algorithm runs iteratively on each node of the graph, with low complexities on local information exchange between neighboring nodes, local computation, and local storage. For an acyclic graph under the condition of diagonal dominance, the algorithm is shown to converge to the correct solution in a finite number of iterations, equalin...
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作者：Aliseyko, Alexey N.
作者单位：Saint Petersburg State University
摘要：One of the main problems in the application of the theory of Lyapunov-Krasovskii functionals is the construction of corresponding Lyapunov matrices. Recently, it was noted that systems with distributed delay and exponential kernel may be rewritten by the introduction of auxiliary variables as systems with one delay. A suggestion was made that one can use the Lyapunov matrix of the latter system to obtain the Lyapunov matrix of the original system. In this article, we establish precise relation...
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作者：Tang, Yutao; Wang, Xinghu
作者单位：Beijing University of Posts & Telecommunications; Chinese Academy of Sciences; University of Science & Technology of China, CAS
摘要：In this article, we investigate an optimal output consensus problem for heterogeneous uncertain nonlinear multiagent systems. The considered agents are described by high-order nonlinear dynamics subject to both static and dynamic uncertainties. A two-step design, comprising sequential constructions of optimal signal generator and distributed partial stabilization feedback controller, is developed to overcome the difficulties brought by nonlinearities, uncertainties, and optimal requirements. T...
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作者：Tzoumas, Vasileios; Carlone, Luca; Pappas, George J.; Jadbabaie, Ali
作者单位：Massachusetts Institute of Technology (MIT); University of Pennsylvania
摘要：We investigate a linear-quadratic-Gaussian (LQG) control and sensing codesign problem, where one jointly designs sensing and control policies. We focus on the realistic case where the sensing design is selected among a finite set of available sensors, where each sensor is associated with a different cost (e.g., power consumption). We consider two dual problem instances: sensing-constrained LQG control, where one maximizes a control performance subject to a sensor cost budget, and minimum-sensi...
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作者：Pakniyat, Ali; Caines, Peter E.
作者单位：University System of Georgia; Georgia Institute of Technology; McGill University
摘要：The hybrid minimum principle is presented for the optimal control of deterministic hybrid systems with both autonomous and controlled switchings and jumps where state jumps at the switching instants are permitted to be accompanied by changes in the dimension of the state space. A feature of particular importance is the explicit presentation of the boundary conditions on the Hamiltonians and the adjoint processes before and after switchings and jumps. The numerical benefit of these expressions ...
