2022

最新文章

• Stability of Discrete-Time Systems Under Restricted Switching via Logic Dynamical Generator and STP-Based Mergence of Hybrid States AI翻译
  作者：Guo, Yuqian; Wu, Yuhu; Gui, Weihua
  作者单位：Central South University; Dalian University of Technology; Dalian University of Technology
  摘要：In this article, we propose a novel technique for the stability analysis of discrete-time switched systems under constrained switching based on the semitensor product (STP) of matrices and vector-representation of logic. We assume that the admissible switching signals are generated by a logic dynamical system, referred to as the logic dynamical generator (LDG) of the admissible switching. We demonstrate that switching with minimum dwell-time and restricted successors represent two special case...
• Robust Output Regulation: Optimization-Based Synthesis and Event-Triggered Implementation AI翻译
  作者：Sarafraz, Mohammad Saeed; Proskurnikov, Anton, V; Tavazoei, Mohammad Saleh; Esfahani, Peyman Mohajerin
  作者单位：Sharif University of Technology; Polytechnic University of Turin; Russian Academy of Sciences; Delft University of Technology
  摘要：In this article, we investigate the problem of practical output regulation, i.e., to design a controller that brings the system output in the vicinity of a desired target value while keeping the other variables bounded. We consider uncertain systems that are possibly nonlinear and the uncertainty of their linear parts is modeled element wise through a parametric family of matrix boxes. An optimization-based design procedure is proposed that delivers a continuous-time control and estimates the ...
• Compressed Positive Quadrature Filter AI翻译
  作者：Wang, Zhong; Li, Yan
  作者单位：Northwestern Polytechnical University
  摘要：A compressed positive quadrature filter (CPQF) is proposed in this technical note. Accuracy, efficiency, and numerical stability are the main concerns for quadrature-based nonlinear Gaussian filtering, but desirable performance in all these three aspects can hardly be simultaneously achieved in previously proposed nonlinear Gaussian filters, such as unscented Kalman filter, Gauss-Hermite quadrature filter (GHQF), and sparse grid quadrature filter. To improve the overall capacity of nonlinear G...
• A Low Complexity Robust Output Synchronization Protocol With Prescribed Performance for High-Order Heterogeneous Uncertain MIMO Nonlinear Multiagent Systems AI翻译
  作者：Katsoukis, Ilias; Rovithakis, George A.
  作者单位：Aristotle University of Thessaloniki
  摘要：We consider the problem of synchronizing, with prescribed transient and steady-state performance guarantees, the output of high-order, nonlinear, multiagent systems in a leader-following scenario. The agent dynamics are MIMO in lower triangular form and uncertain, as all nonlinearities are unknown and moreover they are perturbed by external additive disturbances. Furthermore, no knowledge is provided regarding bounds or functions bounding the actual system nonlinearities. In addition, the dyna...
• Exponential Stabilization of Reaction-Diffusion Systems Via Intermittent Boundary Control AI翻译
  作者：Liu, Xiao-Zhen; Wu, Kai-Ning; Li, Ze-Tao
  作者单位：Harbin Institute of Technology
  摘要：Exponential stabilization is studied for reaction-diffusion systems (RDSs) with a reaction term satisfying the global Lipschitz condition by means of intermittent boundary control.First, a state-dependent intermittent boundary controller is designed when system states are available. By employing the spatial integral functional method and Poincare's inequality, a sufficient condition ensuring exponential stability of RDSs is presented. Then, an observer is presented to estimate the system state...
• Analysis of Positive Systems With Input Saturation: Invariant Hyperpyramids and Hyperrectangles AI翻译
  作者：Shen, Jun; Lam, James
  作者单位：Nanjing University of Aeronautics & Astronautics; University of Hong Kong
  摘要：This article addresses the problem of estimating the domain of attraction of positive systems under a saturated linear feedback. Compared with the analysis of general saturated linear systems, one remarkable difference is that only the domain of attraction inside the first orthant is of interest. Hence, we tackle this problem by exploiting different shapes of invariant sets confined in the first orthant, including hyperpyramids and hyperrectangles, which are, respectively, the level sets of su...
• Robust Output Feedback Stabilization of MIMO Invertible Nonlinear Systems With Output-Dependent Multipliers AI翻译
  作者：Wang, Lei; Kellett, Christopher M.
  作者单位：University of Newcastle; Zhejiang University; Australian National University
  摘要：This article studies the robust output feedback stabilization problem for multi-input-multi-output (MIMO) invertible nonlinear systems with output-dependent multipliers. An ideal state feedback is first designed under certain mild assumptions. Then, a set of extended low-power high-gain observers is systematically designed, providing a complete estimation of the ideal feedback law. This yields a robust output feedback stabilizer such that the origin of the closed-loop system is semiglobally as...
• Stabilization and H2 Static Output-Feedback Control of Discrete-Time Positive Linear Systems AI翻译
  作者：Spagolla, Amanda; Morais, Cecilia F.; Oliveira, Ricardo C. L. F.; Peres, Pedro L. D.
  作者单位：Universidade Estadual de Campinas; Pontificia Universidade Catolica de Campinas
  摘要：This article investigates the problem of designing H-2 robust (or gain-scheduled) static output-feedback (or state-feedback) controllers for discrete-time positive linear systems affected by time-invariant (or time-varying) parameters belonging to a polytope. For this purpose, an iterative procedure based on robust (parameter-dependent) linear matrix inequalities (LMI) is proposed. Unlike most approaches, where the controller is obtained by means of a change of variables, the synthesis conditi...
• Stochastic Control With Affine Dynamics and Extended Quadratic Costs AI翻译
  作者：Barratt, Shane; Boyd, Stephen
  作者单位：Stanford University
  摘要：An extended quadratic function is a quadratic function plus the indicator function of an affine set, i.e., a quadratic function with embedded linear equality constraints. In this article, we show that, under some technical conditions, random convex extended quadratic functions are closed under addition, composition with an affine function, expectation, and partial minimization, i.e., minimizing over some of its arguments. These properties imply that dynamic programming can be tractably carried...
• An Analytic Interpolation Approach to Stability Margins With Emphasis on Time Delay AI翻译
  作者：Ringh, Axel; Karlsson, Johan; Lindquist, Anders
  作者单位：Hong Kong University of Science & Technology; Royal Institute of Technology; Shanghai Jiao Tong University; Royal Institute of Technology
  摘要：Unlike the situation with gain and phase margins in robust stabilization, the problem to determine an exact maximum delay margin is still an open problem, although extensive work has been done to establish upper and lower bounds. The problem is that the corresponding constraints in the Nyquist plot are frequency dependent, and encircling the point s = -1 has to be done at sufficiently low frequencies, as the possibility to do so closes at higher frequencies. In this article, we present a new m...