IEEE Transactions on Automatic Control

最新文章

• An Adaptive Kalman Filter With Inaccurate Noise Covariances in the Presence of Outliers AI翻译
  作者：Zhu, Hao; Zhang, Guorui; Li, Yongfu; Leung, Henry
  作者单位：Chongqing University of Posts & Telecommunications; University of Calgary
  摘要：In this article, a novel variational Bayesian (VB) adaptive Kalman filter with inaccurate nominal process and measurement noise covariances (PMNC) in the presence of outliers is proposed. The probability density functions of state transition and measurement likelihood are modeled as Gaussian-Gamma mixture distributions. The VB inference is used to perform the state and PMNC simultaneously. Simulations show that the effectiveness of the proposed method with inaccurate noise covariances in the p...
• Linearization-Based Quantized Stabilization of Nonlinear Systems Under DoS Attacks AI翻译
  作者：Kato, Rui; Cetinkaya, Ahmet; Ishii, Hideaki
  作者单位：Institute of Science Tokyo; Tokyo Institute of Technology; Research Organization of Information & Systems (ROIS); National Institute of Informatics (NII) - Japan
  摘要：Motivated by the recent security issues in cyber-physical systems, this article studies the stabilization problem of networked control systems under denial-of-service (DoS) attacks. In particular, we consider to stabilize a nonlinear system with limited data rate via linearization. We employ a deterministic DoS attack model constrained in terms of attacks' frequency and duration, allowing us to cover a large class of potential attacks. To achieve asymptotic stabilization, we propose a resilien...
• Ellipsoid-Based Interval Estimation for Lipschitz Nonlinear Systems AI翻译
  作者：Zhang, Wenhan; Wang, Zhenhua; Raissi, Tarek; Shen, Yi
  作者单位：Harbin Institute of Technology
  摘要：This article proposes an intervalestimation method for discrete-time Lipschitz nonlinear systems via observer design and ellipsoidal analysis. A robust observer with novel structure is presented, which provides more degrees of design freedom and can be applied to enhance the interval estimation performance. To handle the nonlinear term in Lipschitz systems, we use the reformulated Lipschitz property to transform the nonlinear error dynamics into a linear parameter-varying form. After the trans...
• Exact Detectability of Discrete-Time and Continuous-Time Linear Stochastic Systems: A Unified Approach AI翻译
  作者：Dragan, Vasile; Costa, Eduardo Fontoura; Popa, Ioan-Lucian; Aberkane, Samir
  作者单位：Institute of Mathematics of the Romanian Academy; Romanian Academy; Academy of Romanian Scientists (AOSR); Universidade de Sao Paulo; 1 Decembrie 1918 University Alba Iulia; Universite de Lorraine; Centre National de la Recherche Scientifique (CNRS); CNRS - Institute for Information Sciences & Technologies (INS2I); Centre National de la Recherche Scientifique (CNRS); CNRS - Institute for Information Sciences & Technologies (INS2I); Universite de Lorraine
  摘要：This article is devoted to the problem of detectability of a large class of linear stochastic systems with time varying coefficients simultaneously affected by state multiplicative white noise perturbations and Markovian switching. The main contribution of this article is to propose a Popov-Belevich-Hautus-type test, which is equivalent to the detectability of the considered stochastic systems in the sense that all unstable modes produce some nonzero output. The proposed setting unifies in som...
• Combining Online Diagnosis and Prognosis for Safe Controllability AI翻译
  作者：Watanabe, Ana T. Y.; Leal, Andre B.; Cury, Jose E. R.; de Queiroz, Max H.
  作者单位：Universidade do Estado de Santa Catarina; Universidade Federal de Santa Catarina (UFSC)
  摘要：In this article, we combine fault diagnosis and prognosis to generalize the notion of safe controllability of discrete-event systems. To do so, we reformulate the notions of safe diagnosability, prognosability, safe controllability by diagnosis, and safe controllability by prognosis in the context of strings. Moreover, we combine these notions to introduce the concept of safe controllability by diagnosis or prognosis, or simply DP-safe controllability. We show that a language can be DP-safe co...
• Secondary Frequency Control of Microgrids: An Online Reinforcement Learning Approach AI翻译
  作者：Adibi, Mahya; van der Woude, Jacob
  作者单位：Delft University of Technology
  摘要：In this article, we present a reinforcement learning-based scheme for secondary frequency control of lossy inverter-based microgrids. Compared with the existing methods in the literature, we relax the common restrictions on the system, i.e., being lossless, and the transmission lines and loads to have known constant impedances. The proposed secondary frequency control scheme does not require a priori information about system parameters and can achieve frequency synchronization within an ultima...
• Finite-Time Stabilization for Continuous Triangular Systems via Vector Lyapunov Function Approach AI翻译
  作者：Ye, Huawen
  作者单位：Central South University
  摘要：This article provides finite-time stabilizing control laws for the continuous triangular systems, in which the nominal dynamics is the chain of power integrators with the power of a positive odd rational number. For a class of continuous lower-triangular systems, the linear controllers are designed. By invoking a vector Lyapunov function theory, there is no need to use the usual back-stepping technique and a quite number of inequality computations are avoided. For a class of continuous upper-t...
• Lie Algebraic Unscented Kalman Filter for Pose Estimation AI翻译
  作者：Sjoberg, Alexander Meyer; Egeland, Olav
  作者单位：Norwegian University of Science & Technology (NTNU)
  摘要：An unscented Kalman filter (UKF) for matrix Lie groups is proposed where the time propagation of the state is formulated on the Lie algebra. This is done with the kinematic differential equation of the logarithm, where the inverse of the right Jacobian is used. The sigma points can then be expressed as logarithms in vector form, and time propagation of the sigma points and the computation of the mean and the covariance can be done on the Lie algebra. The resulting formulation is to a large ext...
• Lyapunov-Krasovskii Characterizations of Integral Input-to-State Stability of Delay Systems With Nonstrict Dissipation Rates AI翻译
  作者：Chaillet, Antoine; Goksu, Gokhan; Pepe, Pierdomenico
  作者单位：Universite Paris Saclay; Institut Universitaire de France; Istanbul Technical University; University of L'Aquila
  摘要：In this article, we provide several characterizations of integral input-to-state stability (iISS) of time-delay systems. These characterizations differ in the way the considered Lyapunov-Krasovskii functionals (LKFs) dissipate along the solutions of the system. This dissipation can involve the LKF itself, as in existing iISS characterizations, but can alternatively involve the instantaneous value of the solution's norm (pointwise dissipation), the supremum norm of the state history (historywis...
• Optimal Repair Policies for Systems Deteriorating After Disruptions AI翻译
  作者：Gehlot, Hemant; Sundaram, Shreyas; Ukkusuri, Satish
  作者单位：Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Kanpur; Purdue University System; Purdue University; Purdue University System; Purdue University
  摘要：We consider a scenario where a system experiences a disruption, and the states (representing health values) of its components continue to reduce over time, unless they are acted upon by a controller. Given this dynamical setting, we consider the problem of finding an optimal control (or switching) sequence to maximize the sum of the weights of the components, whose states are brought back to the maximum value. We first provide several characteristics of the optimal policy for the general (full...