IEEE Transactions on Automatic Control

最新文章

• 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...
• Output Feedback Constrained Regulation of Linear Systems via Controlled-Invariant Sets AI翻译
  作者：Almeida, Tiago A.; Dorea, Carlos E. T.
  作者单位：Universidade Federal do Rio Grande do Norte
  摘要：Design of output feedback controllers applied to the regulation problem for constrained linear discrete-time systems via set-invariance techniques is studied. Output feedback controlled-invariant (OFCI) polyhedra are used to ensure that state and input constraints are satisfied even in the presence of additive disturbances and measurement noise. Necessary and sufficient conditions for a polyhedral set to be OFCI are presented. A dynamic output feedback compensator is proposed through the const...
• Computing Probabilistic Controlled Invariant Sets AI翻译
  作者：Gao, Yulong; Johansson, Karl Henrik; Xie, Lihua
  作者单位：Royal Institute of Technology; Nanyang Technological University
  摘要：This article investigates stochastic invariance for control systems through probabilistic controlled invariant sets (PCISs). As a natural complement to robust controlled invariant sets (RCISs), we propose finite-, and infinite-horizon PCISs, and explore their relation to RICSs. We design iterative algorithms to compute the PCIS within a given set. For systems with discrete spaces, the computations of the finite-, and infinite-horizon PCISs at each iteration are based on linear programming, and...
• State-Space Realization of Periodic i/o Behaviors AI翻译
  作者：Aleixo, Jose Carlos; Rocha, Paula
  作者单位：Universidade da Beira Interior; Universidade da Beira Interior; Universidade do Porto; Universidade do Porto
  摘要：This article addresses the realization of linear periodic input/output (i/o) behaviors. Given a periodic behavior, we obtain its lifted time-invariant version, and construct a behavioral time-invariant (state-space) realization of the lifted behavior. Finally, we recover a periodic (state-space) realization of the periodic behavior based on the obtained time-invariant realization.