11期

最新文章

• Communication Efficient Curvature Aided Primal-Dual Algorithms for Decentralized Optimization AI翻译
  作者：Li, Yichuan; Voulgaris, Petros G.; Stipanovic, Dusan M.; Freris, Nikolaos M.
  作者单位：University of Illinois System; University of Illinois Urbana-Champaign; University of Illinois System; University of Illinois Urbana-Champaign; Nevada System of Higher Education (NSHE); University of Nevada Reno; Chinese Academy of Sciences; University of Science & Technology of China, CAS
  摘要：This article presents a family of algorithms for decentralized convex composite problems. We consider the setting of a network of agents that cooperatively minimize a global objective function composed of a sum of local functions plus a regularizer. Through the use of intermediate consensus variables, we remove the need for inner communication loops between agents when computing curvature-guided updates. A general scheme is presented, which unifies the analysis for a plethora of computing choi...
• Maximal Admissible Disturbance Constraint Set for Tube-Based Model Predictive Control AI翻译
  作者：Xie, Huahui; Dai, Li; Sun, Zhongqi; Xia, Yuanqing
  作者单位：Beijing Institute of Technology
  摘要：Tube-based model predictive control (TMPC) is an outstanding control technique in robust control realms. However, the existing works are generally based on a priori known admissible sets of disturbances, i.e., disturbance constraint sets, the sizes of which are by default small enough such that the region of attraction is nonempty. If the size of the disturbance constraint set specified is too large, or even oversized in some particular direction, TMPC may not be capable of handling it and los...
• Brunovsky Decomposition for Dynamic Interval Localization AI翻译
  作者：Rohou, Simon; Jaulin, Luc
  作者单位：Institut Polytechnique de Paris; ENSTA Paris; Universite de Bretagne Occidentale
  摘要：This article proposes a new set-membership method for estimating the trajectories of dynamical systems, when the states are completely unknown and only nonlinear observations are available. The first part of the proposed method is symbolic and follows the decomposition of Brunovsky, i.e., it decomposes the set of differential equations describing the dynamical system into two blocks of constraints: one block gathers nonlinear analytical equations that do not involve differential operators, whi...
• Algorithmic Minimization of Uncertain Continuous-Time Markov Chains AI翻译
  作者：Cardelli, Luca; Grosu, Radu; Larsen, Kim Guldstrand; Tribastone, Mirco; Tschaikowski, Max; Vandin, Andrea
  作者单位：University of Oxford; Technische Universitat Wien; Aalborg University; IMT School for Advanced Studies Lucca; Scuola Superiore Sant'Anna; Technical University of Denmark
  摘要：The assumption of perfect knowledge of rate parameters in continuous-time Markov chains (CTMCs) is undermined when confronted with reality, where they may be uncertain due to lack of information or because of measurement noise. Here, we consider uncertain CTMCs (UCTMCs), where rates are assumed to vary nondeterministically with time from bounded continuous intervals. A UCTMC can be, therefore, seen as a specific type of Markov decision process for which the analysis is computationally difficul...
• Synchronization of Spin-Torque Oscillators via Continuation Method AI翻译
  作者：Nikitin, Denis; Canudas-de-Wit, Carlos; Frasca, Paolo; Ebels, Ursula
  作者单位：Communaute Universite Grenoble Alpes; Institut National Polytechnique de Grenoble; Universite Grenoble Alpes (UGA); Centre National de la Recherche Scientifique (CNRS); Inria; Communaute Universite Grenoble Alpes; Institut National Polytechnique de Grenoble; Universite Grenoble Alpes (UGA); CEA; Centre National de la Recherche Scientifique (CNRS)
  摘要：In this article, we study synchronization phenomena of spin-torque oscillators coupled on a ring. Spin-torque oscillators are nanoelectronic devices that promise efficient microwave generation provided they are synchronized in large arrays. Due to their nonlinear and nonisochronous nature, their synchronization properties are difficult to analyze explicitly. To address this challenge, we employ a recently developed continuation method and transform the network of coupled oscillators (each desc...
• Stability Analysis of Discrete-Time Semi-Markov Jump Linear Systems With Time Delay AI翻译
  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...
• Quadratic Programming for Continuous Control of Safety-Critical Multiagent Systems Under Uncertainty AI翻译
  作者：Wu, Si; Liu, Tengfei; Egerstedt, Magnus; Jiang, Zhong-Ping
  作者单位：Northeastern University - China; University of California System; University of California Irvine; New York University
  摘要：This article studies the control problem for safety-critical multiagent systems based on quadratic programming (QP). Each controlled agent is modeled as a cascade connection of an integrator and an uncertain non-linear actuation system. In particular, the integrator represents the position-velocity relation, and the actuation system describes the dynamic response of the actual velocity to the velocity reference signal. The notion of inputto-output stability is employed to characterize the esse...
• Data-Based Control of Feedback Linearizable Systems AI翻译
  作者：Alsalti, Mohammad; Lopez, Victor G.; Berberich, Julian; Allgoewer, Frank; Mueller, Matthias A.
  作者单位：Leibniz University Hannover; University of Stuttgart
  摘要：In this article, we present an extension of Willems' Fundamental Lemma to the class of multi-input-multi-output discrete-time feedback linearizable nonlinear systems, thus providing a data-based representation of their input-output trajectories. Two sources of uncertainty are considered. First, the unknown linearizing input is inexactly approximated by a set of basis functions. Second, the measured output data is contaminated by additive noise. Furthermore, we propose an approach to approximat...
• Lyapunov Functions for Linear Hyperbolic Systems AI翻译
  作者：Atamas, Ivan; Dashkovskiy, Sergey; Slynko, Vitalii
  作者单位：University of Wurzburg
  摘要：In this article, we develop new methods to construct a Lyapunov function for 1-D linear hyperbolic equations with variable coefficients. The main focus is on the nonstrictly hyperbolic case for which we give an example demonstrating that existing approaches cannot provide sufficient conditions for the asymptotic stability, but our approach does. Sufficient conditions for exponential L-2-stability for a connected 2 x 2 system of linear 1-D hyperbolic systems are obtained. By means of examples, ...
• Finite-Time Control of Markov Jump Lur'e Systems With Singular Perturbations AI翻译
  作者：Cheng, Jun; Park, Ju H.; Wu, Zheng-Guang
  作者单位：Guangxi Normal University; Yeungnam University; Hunan University
  摘要：This article investigates the asynchronous controller design issue for Markov jump Lur'e systems with singular perturbations within a fixed time interval. For broader practical applications, the variation of system modes is regulated by a switched nonhomogeneous Markov process that corresponded to both lower level nonhomogeneous stochastic jumping and higher level deterministic switching. By resorting to the hidden nonhomogeneous-Markov model, an asynchronous control law that relies on the det...