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作者：Liu, Tao; Huang, Jie
作者单位：Southern University of Science & Technology; Chinese University of Hong Kong
摘要：This article proposes an output-based adaptive distributed observer for a class of discrete-time uncertain linear leader systems. The leader system is neutrally stable with unknown parameters in its system matrix. Such a leader system can produce discrete-time multitone sinusoidal signals with arbitrary magnitudes, arbitrary phases, and unknown frequencies. The adaptive distributed observer for the uncertain leader system is obtained via a two-step design. In the first step, both the state and...
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作者：Zhang, Yu-Long; Liu, Shaojie; Wang, Zhaohui; Wang, Jun-Min; Li, Donghai; Zhu, Min
作者单位：Beijing Institute of Technology; Tsinghua University; Tsinghua University
摘要：In this article, we consider the stabilization of combustion oscillations in the Rijke tube, which is modeled by a linearized wave equation with heat release fluctuation ordinary differential equation (ODE) acting as a point source term. A boundary proportional-integral (PI) feedback controller is designed to suppress the combustion oscillations. The Nyquist criterion is applied to prove that eigenvalues of the operator of the close-loop system are all located on the left-hand side of the comp...
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作者：Bahreinian, Mahroo; Kermanshah, Mehdi; Tron, Roberto
作者单位：Boston University; Boston University; Boston University
摘要：We consider the problem of designing output feedback controllers that use measurements from a set of landmarks to navigate through a cell-decomposable environment using duality, control Lyapunov function and control barrier function, and linear programming. We propose two objectives for navigating in an environment, one to traverse the environment by making loops and one by converging to a stabilization point while smoothing the transition between consecutive cells. We test our algorithms in a...
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作者：Su, Yanxu; Wang, Qingling; Sun, Changyin
作者单位：Anhui University; Southeast University - China
摘要：This article concentrates on distributed optimization over networks with communication delays. Each subsystem in the network performs its local updates by using the information received from its neighbors, be it possibly outdated. The communication delays with respect to different neighbors are assumed to be arbitrary but bounded. The objective function consists of a twice differentiable coupling term and an aggregated private term. The private function of each subsystem is the sum of two poss...
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作者：Sun, Libei; Song, Yongduan; Lv, Maolong
作者单位：Chongqing University; Air Force Engineering University
摘要：This study addresses the intricate challenge of decentralized output-feedback control for stochastic non-triangular nonlinear interconnected systems with unknown time-varying sensor sensitivity in a dynamic event-triggered context. The presence of stochastic disturbances, non-triangular structural uncertainties, and evolving sensor sensitivity distinguishes this problem of global asymptotic stability from conventional event-triggered control scenarios. Existing event-triggered control approach...
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作者：Xu, Haoyuan; Yang, Yake; Yang, Nachuan; Tan, Cheng; Li, Yuzhe
作者单位：Northeastern University - China; Southwestern Institute of Physics - China; Hong Kong University of Science & Technology; Qufu Normal University
摘要：This article studies the security issue of malicious attackers degrading remote estimation by injecting false data into sensors in cyber-physical systems. The typical attacks involve initially proposing a parameterized pattern, such as a linear one, then optimizing parameters according to system performance. The parameterized model limits the destructivity because it cannot cover all patterns. To overcome this, we investigate a generalized deception attack model with an unparameterized form. T...
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作者：Zhang, Xu; Vasconcelos, Marcos M.
作者单位：Xidian University; State University System of Florida; Florida A&M University; Florida State University
摘要：Networked multiagent systems often communicate information over low-power shared wireless networks in unlicensed spectrum, which are prone to denial-of-service attacks. An instance of this scenario is considered: multiple pairs of agents, each pair consisting of a transmitting sensor and a receiver acting as an estimator, communicate strategically over shared communication networks in the presence of a jammer who may launch a denial-of-service attack in the form of packet collisions. Using the...
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作者：Eldesoukey, Asmaa; Georgiou, Tryphon T.
作者单位：University of California System; University of California Irvine
摘要：The problem of reconciling a prior probability law on paths with data was introduced by Schrodinger in 1931 and 1932. It represents an early formulation of a maximum likelihood problem. This specific formulation can also be seen as the control problem to modify the law of a diffusion process so as to match specifications on marginal distributions at given times. Thereby, in recent years, this so-called Schrodinger's bridge problem has been at the center of the uncertainty control development. ...
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作者：Lupien, Jean-Luc; Shames, Iman; Lesage-Landry, Antoine
作者单位：Universite de Montreal; Polytechnique Montreal; Mila Quebec Artificial Intelligence Institute; Universite de Montreal; Australian National University
摘要：An important challenge in the online convex optimization (OCO) setting is to incorporate generalized inequalities and time-varying constraints. The inclusion of constraints in OCO widens the applicability of such algorithms to dynamic and safety-critical settings such as the online optimal power flow (OPF) problem. In this work, we propose the first projection-free OCO algorithm admitting time-varying linear constraints and convex generalized inequalities: the online interior-point method for ...
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作者：Wang, Jiwei; Baldi, Simone; van Waarde, Henk J.
作者单位：Southeast University - China; University of Groningen; Southeast University - China
摘要：The objective of model reference control is to design a controller that regulates the system's behavior so as to match a specified reference model. This article investigates necessary and sufficient conditions for model reference control from a data-driven perspective, when only a set of data generated by the system is utilized to directly accomplish the matching. Noiseless and noisy data settings are both considered. Notably, all methods we propose build on the concept of data informativity a...
