2021

最新文章

• Marking Estimation in Petri Nets Using Hierarchical Basis Reachability Graphs AI翻译
  作者：Ma, Ziyue; Zhu, Guanghui; Li, Zhiwu
  作者单位：Xidian University; Macau University of Science & Technology
  摘要：In this article, we propose a two-layer-structure called hierarchical basis reachability graph that is useful for marking estimation in Petri nets that contain unobservable transitions. On the basis of a hierarchical partition of the set of observable transitions, a hierarchical basis reachability graph consists of a primary and a secondary structures. Simulation shows that the time-consumption to compute a hierarchical basis reachability graph is in general much less than that of computing th...
• Reduced Order LQG Control Design for Infinite Dimensional Port Hamiltonian Systems AI翻译
  作者：Wu, Yongxin; Hamroun, Boussad; Le Gorrec, Yann; Maschke, Bernhard
  作者单位：Universite Marie et Louis Pasteur; Universite Marie et Louis Pasteur; Centre National de la Recherche Scientifique (CNRS); CNRS - Institute for Engineering & Systems Sciences (INSIS); Universite Claude Bernard Lyon 1
  摘要：This article proposes a method that combines linear quadratic Gaussian (LQG) control design and structure preserving model reduction for the reduced order control of infinite dimensional port Hamiltonian systems (IDPHS).For that purpose the weighting operators used in LQG control design are chosen such that the resulting dynamic controller is passive and the closed-loop system equivalent to control by interconnection. The method of Petrov-Galerkin is then used to approximate the balanced reali...
• Remote State Estimation in the Presence of an Active Eavesdropper AI翻译
  作者：Ding, Kemi; Ren, Xiaoqiang; Leong, Alex S.; Quevedo, Daniel E.; Shi, Ling
  作者单位：Hong Kong University of Science & Technology; Shanghai University; University of Paderborn; Queensland University of Technology (QUT)
  摘要：We consider remote state estimation in the presence of an active eavesdropper. A sensor forward local state estimates to a remote estimator over a network, which may be eavesdropped by an intelligent adversary. Aiming at improving the eavesdropping performance efficiently, the adversary may adaptively alternate between an eavesdropping and an active mode. In contrast to eavesdropping, the active attack enables the adversary to sabotage the data transfer to the estimator, and improve the data r...
• New Results on the Characterization of Strictly Positive Real Matrix Transfer Functions AI翻译
  作者：Hakimi-Moghaddam, Mojtaba; Ferrante, Augusto
  作者单位：Quchan University of Technology; University of Padua
  摘要：In this article, we analyze the high-frequency condition that discriminates strictly positive real systems from weakly strictly positive real ones. Different versions of this condition have been proposed in the literature. We consider the general case of multi-input-multi-output (MIMO) systems and derive new equivalent conditions. A graphic interpretation is also presented. In comparison to the existing literature, the conditions derived here are easier to check, especially for large dimension...
• Randomized Greedy Sensor Selection: Leveraging Weak Submodularity AI翻译
  作者：Hashemi, Abolfazl; Ghasemi, Mahsa; Vikalo, Haris; Topcu, Ufuk
  作者单位：University of Texas System; University of Texas Austin; University of Texas System; University of Texas Austin; University of Texas System; University of Texas Austin
  摘要：We study the problem of estimating a random process from the observations collected by a network of sensors that operate under resource constraints. When the dynamics of the process and sensor observations are described by a state-space model and the resource are unlimited, the conventional Kalman filter provides the minimum mean square error (MMSE) estimates. However, at any given time, restrictions on the available communications bandwidth and computational capabilities and/or power impose a...
• Boundary Delayed Observer-Controller Design for Reaction-Diffusion Systems AI翻译
  作者：Katz, Rami; Fridman, Emilia; Selivanov, Anton
  作者单位：Tel Aviv University; University of Sheffield
  摘要：We consider delayed boundary stabilization of a one-dimensional reaction-diffusion equation under boundary delayed measurements. We design an observer-based control law via the modal decomposition approach. The observer is governed by a partial differential equation, which leads to separation of the observer and the controller design. We suggest a network-based implementation of the controller in the presence of two networks: from sensor to controller, and from the controller to actuator. To r...
• Invariance Principles and Observability in Switched Systems With an Application in Consensus AI翻译
  作者：Lee, Ti-Chung; Tan, Ying; Su, Youfeng; Mareels, Iven
  作者单位：National Sun Yat Sen University; University of Melbourne; Fuzhou University; International Business Machines (IBM); IBM Australia; IBM Research - Australia
  摘要：Using any nonnegative function with a nonpositive derivative along trajectories to define a virtual output, the classic LaSalle invariance principle can be extended to switched nonlinear time-varying (NLTV) systems, by considering the weak observability associated with this output. The concept of weak observability reflects the information of the limiting behavior of state trajectories hidden in the zero locus of the output. In the context of switched NLTV systems, weak observability can be ex...
• Characterizing PID Controllers for Linear Time-Delay Systems: A Parameter-Space Approach AI翻译
  作者：Li, Xu-Guang; Niculescu, Silviu-Iulian; Chen, Jun-Xiu; Chai, Tianyou
  作者单位：Northeastern University - China; Northeastern University - China; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS)
  摘要：We focus on the proportional-integral-derivative (PID) controller design for linear time-delay systems. All the controller gains (k(P), k(I,) and k(D)) and the delay (t) are treated as free parameters and no particular constraints are imposed on the controlled plants. Such a problem (involving totally four free parameters) is of theoretical as well as practical importance, but, to the best of the authors' knowledge, it has not been fully explored. First, we will develop an algebraic algorithm ...
• Cooperative Output Regulation of Heterogeneous Multiagent Systems: A Global Distributed Control Synthesis Approach AI翻译
  作者：Koru, Ahmet Taha; Sarsilmaz, Selahattin Burak; Yucelen, Tansel; Johnson, Eric Norman
  作者单位：Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; University of Washington; University of Washington Seattle; State University System of Florida; University of South Florida
  摘要：Agent-wise local design methods to synthesize distributed control gains focus on the individual dynamics of each agent to guarantee the overall stability of the system. They are powerful tools due to their scalability. However, the agent-wise local design methods are incapable of maximizing the overall system performance through, for example, decay rate assignment. On the other hand, design methods, which are predicated on a global condition, leads to nonconvex optimization problems. This arti...
• Sliding-Mode-Observer-Based Time-Varying Formation Tracking for Multispacecrafts Subjected to Switching Topologies and Time-Delays AI翻译
  作者：Yuan, Yuan; Wang, Yingjie; Guo, Lei
  作者单位：Northwestern Polytechnical University; Beihang University
  摘要：In this article, the time-varying practical formation problem is investigated for a group of spacecrafts subjected to switching topologies, and time-delays. First, a sliding mode observer is designed to estimate the derivatives of time-varying delays. In virtue of the self-stable region, the sufficient condition is provided to guarantee that the error dynamics of the super-twisting sliding mode observer is convergent. Then, the sliding-mode-observer-based formation tracking protocol is designe...