2期

最新文章

• On Globalized Robust Kalman Filter Under Model Uncertainty AI翻译
  作者：Xu, Yang; Xue, Wenchao; Shang, Chao; Fang, Haitao
  作者单位：Chinese Academy of Sciences; Academy of Mathematics & System Sciences, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Tsinghua University
  摘要：This article proposes a novel state estimation strategy with globalized robustness for a class of systems under uncertainty. Departing from the classical minimax estimation, this article focuses on the globalized robust estimation (GRE), which minimizes the estimator's fragility to attain an acceptable loss compared with the nominal model. The GRE problem has an easily specified hyperparameter as compared to the maximal radius in the classical minimax estimation. Besides, it considers all poss...
• Parameter-Dependent Robust Control Invariant Sets for LPV Systems With Bounded Parameter-Variation Rate AI翻译
  作者：Mulagaleti, Sampath Kumar; Mejari, Manas; Bemporad, Alberto
  作者单位：University of Trento; Universita della Svizzera Italiana; IMT School for Advanced Studies Lucca
  摘要：Real-time measurements of the scheduling parameter of linear parameter-varying (LPV) systems enable the synthesis of robust control invariant (RCI) sets and parameter-dependent controllers inducing invariance. We present a method to synthesize parameter-dependent RCI (PD-RCI) sets for LPV systems with bounded parameter variation, in which invariance is induced using PD-vertex control laws. The PD-RCI sets are parameterized as configuration-constrained polytopes that admit a joint parameterizat...
• Once Upon a Time Step: A Closed-Loop Approach to Robust MPC Design AI翻译
  作者：Parsi, Anilkumar; Bartos, Marcell; Srivastava, Amber; Gros, Sebastien; Smith, Roy S.
  作者单位：Swiss Federal Institutes of Technology Domain; ETH Zurich; Swiss Federal Institutes of Technology Domain; ETH Zurich; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Delhi; Norwegian University of Science & Technology (NTNU)
  摘要：A novel robust model predictive control (MPC) algorithm is presented, whereby closed-loop constraint satisfaction is ensured using recursive feasibility of the MPC optimization. The proposed strategy considers the effects of model perturbations and disturbances occurring at only one time step. This is in contrast to existing formulations, which compute control policies that are feasible under the worst-case realizations of all model perturbations and exogenous disturbances in the MPC predictio...
• Decentralized and Distributed Control of Large-Scale Interconnected Multiagent Systems in Prescribed Time AI翻译
  作者：Ye, Hefu; Wen, Changyun; Song, Yongduan
  作者单位：Chongqing University; Nanyang Technological University
  摘要：Interactions and communication between individuals and individuals, individuals and groups, as well as groups and groups are common in both the natural and applied sciences. In this article, we investigate the control problem of large-scale systems composed of multiple individuals and groups, where there are interactions among these individuals and groups, as well as potential communication exchanges. Each plant is modeled as a high-order mismatched uncertain nonlinear system, and only a subse...
• A Novel Mixture Least Squares Approach for Simultaneous Parameter/State and Unknown Input Estimation AI翻译
  作者：Ding, Bo; Wei, Yuanchu; Zhang, Yong; Yang, Wu
  作者单位：Yangzhou University; Wuhan University of Science & Technology; Guangxi University
  摘要：In this article, we introduce a novel mixture least squares (MLSs) algorithm to deal with the problems of simultaneous parameter/state and unknown input estimation. First, the MLSs algorithm is derived to estimate the desired parameter and unknown input, which can be regarded as a unified framework for deterministic least squares and stochastic least squares. The unbiasedness and optimality of the MLSs estimators are further verified. Then, based on the established MLSs algorithm, a new soluti...
• Distributed Optimization With Asynchronous Computation and Event-Triggered Communication AI翻译
  作者：Dong, Ziwei; Jin, Yaochu; Mao, Shuai; Ren, Wei; Du, Wei; Tang, Yang
  作者单位：East China University of Science & Technology; Westlake University; Nantong University; University of California System; University of California Riverside
  摘要：The implementation of distributed optimization, depending on the application, imposes escalating demands on communication and computational synchronization, with the general desire for the robust performance in the face of computationally slow agents and the avoidance of unnecessary communication. In this article, we propose a distributed algorithm with asynchronous computation and event-triggered communication (DAAET) that enables the nodes to flexibly determine their update and information t...
• Event-Triggered Sampling Problem for Exponential Stability of Stochastic Nonlinear Delay Systems Driven by Levy Processes AI翻译
  作者：Zhu, Quanxin
  作者单位：Hunan Normal University
  摘要：This article mainly discusses the stabilization issue for a class of stochastic nonlinear delay systems driven by Levy processes. Based on a novel event-triggered strategy and stochastic analysis techniques, we solve the practically pth moment exponential stability problem of the considered system. Comparing with those previous results, we do not require the global Lipschitz condition and do not use the linear matrix inequality method. Also, different from many results for stochastic systems i...
• Decay Rate Assignment Through Multiple Spectral Values in Delay Systems AI翻译
  作者：Boussaada, Islam; Mazanti, Guilherme; Niculescu, Silviu-Iulian; Michiels, Wim
  作者单位：Universite Paris Saclay; Inria; Centre National de la Recherche Scientifique (CNRS); KU Leuven
  摘要：This article focuses on a spectral property for linear time-invariant dynamical systems represented by delay-differential equations (DDEs) entitled multiplicity-induced-dominancy (MID), which consists, roughly speaking, in the spectral abscissa of the system being defined by a multiple spectral value. More precisely, we focus on the MID property for spectral values with overorder multiplicity, i.e., a multiplicity larger than the order of the DDE. We highlight the fact that a root of overorder...
• Robustness of Strictly Positive Real Matrix Transfer Functions Under Small Perturbations AI翻译
  作者：Falconi, Lucia; Ferrante, Augusto
  作者单位：University of Padua
  摘要：In this article, we analyze strictly positive real and regular multiple-input-multiple-output (MIMO) systems. We consider small perturbations of such systems and characterize the perturbations' structure for which the perturbed system remains strictly positive real and regular. Both static and dynamical perturbation are considered. The general case where both the system and the perturbation are not necessarily rational is considered.
• Averaging-Based Stability of Discrete-Time Delayed Systems via a Novel Delay-Free Transformation AI翻译
  作者：Jbara, Adam; Katz, Rami; Fridman, Emilia
  作者单位：Tel Aviv University; University of Trento
  摘要：In this article, we study, for the first time, the stability of linear delayed discrete-time systems with small parameter epsilon > 0 and rapidly varying coefficients. Recently, an efficient constructive approach to averaging-based stability via a novel delay-free transformation was introduced for continuous-time systems. Our paper extends this approach to discrete-time systems. We start by introducing a discrete-time change of variables that leads to a perturbed averaged system. By employing ...