-
作者：Behrendt, Gabriel; Longmire, Matthew; Bell, Zachary I.; Hale, Matthew
作者单位：University System of Georgia; Georgia Institute of Technology; State University System of Florida; University of Florida
摘要：In this article, we present an algorithm that drives the outputs of a network of agents to jointly track the solution of a time-varying, strongly convex optimization problem. This algorithm is robust to asynchrony in the agents' operations, namely, first, computations of control inputs, second, linear measurements of network outputs, and third, communications of agents' inputs and outputs. We first show that our distributed asynchronous algorithm converges to the solution of a time-invariant f...
-
作者：Fauser, Moritz; Zhang, Ping
作者单位：RPTU University Kaiserslautern
摘要：Recently, the so-called resilient homomorphic encryption (RHE) scheme has been proposed by Fauser and Zhang (2021). Different from the existing homomorphic encryption schemes, the RHE scheme is able to neutralize the effect of an attack injected into the ciphertexts. Thus, a control system can still operate even if an attack takes place. In this article, the RHE scheme is further developed so that it can not only neutralize additive attacks but also satisfy the security requirement of indistin...
-
作者：Liu, Siyuan; Yin, Xiang; Dimarogonas, Dimos V.; Zamani, Majid
作者单位：Royal Institute of Technology; Shanghai Jiao Tong University; University of Colorado System; University of Colorado Boulder; University of Munich
摘要：This article investigates an important class of information-flow security property called opacity for stochastic control systems. Opacity captures whether a system's secret behavior (a subset of the system's behavior that is considered to be critical) can be kept from outside observers. Existing works on opacity for control systems only provide a binary characterization of the system's security level by determining whether the system is opaque or not. In this work, we introduce a quantifiable ...
-
作者：Xu, Jiapeng; Chen, Xiang; Tan, Ying; Zhou, Kemin
作者单位：University of Windsor; University of Melbourne; Nanjing University
摘要：This article proposes a novel multiobjective control framework for linear time-invariant systems in which performance and robustness can be achieved in a complementary way instead of a tradeoff. In particular, a state-space solution is first established for a new stabilizing control structure consisting of two independently designed controllers coordinated with a Youla-type operator Q. It is then shown by performance analysis that these two independently designed controllers operate in a natur...
-
作者：Kanakis, George S.; Rovithakis, George A.
作者单位：Aristotle University of Thessaloniki
摘要：In this article we consider the motion planning problem in an n-dimensional Euclidean space, n >= 2, containing finitely many obstacles with boundaries possessing a smooth structure. Obstacle boundaries are assumed to be compact and connected embedded submanifolds of the ambient Euclidean space of codimension 1. The proposed solution guarantees both global asymptotic stability of a target configuration and avoidance of the obstacles. The controller is based on a switching scheme between two mo...
-
作者：Lin, Lin; Lam, James; Shi, Peng; Ng, Michael K.; Lam, Hak-Keung
作者单位：University of Hong Kong; Adelaide University; University of Adelaide; Obuda University; Hong Kong Baptist University; University of London; King's College London
摘要：This article studies controllability and observability problems for a class of mixed-valued probabilistic logical control networks (PLCNs). First, PLCN is transformed into the algebraic state-space representation (ASSR)-form by resorting to the semitensor product method. Then, the formulas are presented to calculate the lower and upper bounds of the transition probability matrix, which further derive the controllability and observability criteria. Furthermore, the ASSR-form of a PLCN can be re...
-
作者：Mao, Bing; Wu, Xiaoqun; Fan, Ziye; Lu, Jinhu; Chen, Guanrong
作者单位：Shenzhen University; Wuhan University; Beihang University; City University of Hong Kong
摘要：The problem of achieving performance-guaranteed finite-time exact tracking for uncertain strict-feedback nonlinear systems with unknown control directions is addressed. A novel logic switching mechanism with monitoring functions is designed to deal with unknown control directions. This approach is different from existing methods, such as the Nussbaum gain technique and smooth orientation functions, which are inapplicable to finite-time exact tracking. The main challenge lies in designing monit...
-
作者：Lu, Jieying; Li, Junhui; Su, Weizhou
作者单位：South China University of Technology; South China University of Technology; Peking University
摘要：This work mainly investigates the mean-square stability for a single-input single-output networked linear feedback system. The control signal in the networked system is transmitted over an unreliable channel with data transmission delays and packet dropouts. The transmission delays and packet dropouts are modeled by an independent and identically distributed random process with a known probability mass function. At the channel terminal, a linear receiving strategy is adopted. Based on the unit...
-
作者：Zhou, Shijie; Yang, Luan; Qian, Xuzhe; Lin, Wei
作者单位：Fudan University; Fudan University; Fudan University; Fudan University
摘要：Investigating network stability and synchronization of multiagent systems (MASs) with time delays is crucial in real-world applications. This often involves solving transcendental characteristic equations (TCEs) from system linearization. While stability results for TCEs with real-valued coefficients induced by symmetric networks are well-studied, there is a gap for complex-valued coefficients arising from asymmetric networks. To bridge this gap, we propose a geometric approach by studying sta...
-
作者：Chen, Ci; Zheng, Zhiyang; Lewis, Frank L.; Xie, Kan; Xie, Shengli
作者单位：Guangdong University of Technology; Guangdong University of Technology; University of Texas System; University of Texas Arlington; Guangdong University of Technology; Guangdong University of Technology
摘要：We study a solo adaptation-based protocol design problem for distributed synchronization of event-triggered linear multiagent systems (MASs) over general directed graphs. We show that a solo adaptive gain, a locally static control gain matrix, and a distributed state measurement are sufficient for obtaining adaptive distributed synchronization of linear MAS over directed graphs without any prior knowledge of the global communication network. We then extend the solo adaptation structure to form...
