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作者：Ma, Qichao; Qin, Jiahu; Yu, Xinghuo; Wang, Long
作者单位：Chinese Academy of Sciences; University of Science & Technology of China, CAS; Royal Melbourne Institute of Technology (RMIT); Peking University
摘要：In this article, we deal with the consensus problem of multiple partial-state coupled linear systems, which are neutrally stable. These systems communicate over dynamic undirected networks, which change continuously and can be disconnected at any time. We develop an analysis framework from uniform complete observability theory to work out the necessary and sufficient conditions for exponential consensus. It turns out that, with a suitably designed feedback matrix, exponential consensus can be ...
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作者：Meira-Goes, Romulo; Lafortune, Stephane; Marchand, Herve
作者单位：University of Michigan System; University of Michigan; Universite de Rennes; Inria
摘要：We consider feedback control systems where sensor readings may be compromised by a malicious attacker intending on causing damage to the system. We study this problem at the supervisory layer of the control system, using discrete event systems techniques. We assume that the attacker can edit the outputs from the sensors of the system before they reach the supervisory controller. In this context, we formulate the problem of synthesizing a supervisor that is robust against the class of edit atta...
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作者：Boutselis, George, I; Theodorou, Evangelos
作者单位：University System of Georgia; Georgia Institute of Technology; General Electric
摘要：We develop a discrete-time optimal control framework for systems evolving on Lie groups. Our article generalizes the original differential dynamic programming method, by employing a coordinate-free, Lie-theoretic approach for its derivation. A key element lies, specifically, in the use of quadratic expansion schemes for cost functions and dynamics defined on Lie groups. The obtained algorithm iteratively optimizes local approximations of the control problem, until reaching a (sub)optimal solut...
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作者：Lee, Chang-Shen; Michelusi, Nicolo; Scutari, Gesualdo
作者单位：Purdue University System; Purdue University; Arizona State University; Arizona State University-Tempe; Purdue University System; Purdue University
摘要：This article proposes the first distributed algorithm that solves the weight-balancing problem using only finite rate and simplex communications among nodes, compliant with the directed nature of the graph edges. It is proved that the algorithm converges to a weight-balanced solution at sublinear rate. The analysis builds upon a new metric inspired by positional system representations, which characterizes the dynamics of information exchange over the network, and on a novel step-size rule. Bui...
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作者：Liu, Xinghua; Mo, Yilin; Garone, Emanuele
作者单位：Xi'an University of Technology; Tsinghua University; Tsinghua University; Universite Libre de Bruxelles
摘要：This article is concerned with the secure state estimation problem of a linear discrete-time Gaussian system in the presence of sparse integrity attacks. m sensors are deployed to monitor the state and p of them can potentially be compromised by an adversary, whose data can be arbitrarily manipulated by the attacker. We show that the optimal Kalman estimate can be decomposed as a weighted sum of local state estimates. Based on these local estimates, we propose a convex optimization based appro...
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作者：Ma, Aoyun; Liu, Kun; Zhang, Qirui; Liu, Tao; Xia, Yuanqing
作者单位：Beijing Institute of Technology; Beijing Wuzi University
摘要：This article presents an event-triggered distributed model predictive control with variable prediction horizon strategy for spatially interconnected systems with input and state constraints. Each subsystem compares the error between actual state and optimal state with a triggering level, and cooperates with other subsystems to determine the triggering time and the corresponding prediction horizon. A shrinking constraint related to the bounds of errors between the predicted states and the optim...
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作者：Sayin, Muhammed O.; Basar, Tamer
作者单位：Massachusetts Institute of Technology (MIT); University of Illinois System; University of Illinois Urbana-Champaign
摘要：We introduce a robust sensor design framework to provide persuasion-based defense in stochastic control systems against an unknown type attacker with a control objective exclusive to its type. We design a robust linear-plus-noise signaling strategy in order to persuade the attacker to take actions that lead to minimum damage with respect to the system's objective. The specific model we adopt is a Gauss-Markov process driven by a controller with a (partially) unknown malicious/benign control ob...
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作者：Gafni, Tomer; Cohen, Kobi
作者单位：Ben-Gurion University of the Negev
摘要：We consider a class of restless multiarmed bandit (RMAB) problems with unknown arm dynamics. At each time, a player chooses an arm out of N arms to play, referred to as an active arm, and receives a random reward from a finite set of reward states. The reward state of the active arm transits according to an unknown Markovian dynamics. The reward state of passive arms (which are not chosen to play at time t) evolves according to an arbitrary unknown random process. The objective is an arm-selec...
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作者：Ren, Wei; Xiong, Junlin
作者单位：Chinese Academy of Sciences; University of Science & Technology of China, CAS
摘要：In this article, we study the robust filtering problem for 2-D switched systems with convex-bounded uncertainties. The studied switched system is formulated by Fornasini-Marchesini local state-space model, and system matrices depend affinely on convex-bounded uncertain parameters. We first derive synthesis results for 2-D switched systems, which extends the existing results and lays a foundation for the robust filter design. To design the robust filter, we transform the 2-D switched system int...
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作者：Li, Jingqi; Chen, Ximing; Pequito, Sergio; Pappas, George J.; Preciado, Victor M.
作者单位：University of California System; University of California Berkeley; University of Pennsylvania; Delft University of Technology
摘要：In this article, we study the target controllability problem of networked dynamical systems,in which we are tasked to steer a subset of network nodes toward a desired objective. More specifically, we derive necessary and sufficient conditions for the structural target controllability of linear time-invariant (LTI) systems with symmetric state matrices, such as those representing undirected dynamical networks with unknown link weights. To achieve our goal, we first characterize the generic rank...
