IEEE Transactions on Automatic Control

最新文章

• Linear Quadratic Control Using Model-Free Reinforcement Learning AI翻译
  作者：Yaghmaie, Farnaz Adib; Gustafsson, Fredrik; Ljung, Lennart
  作者单位：Linkoping University
  摘要：In this article, we consider linear quadratic (LQ) control problem with process and measurement noises. We analyze the LQ problem in terms of the average cost and the structure of the value function. We assume that the dynamics of the linear system is unknown and only noisy measurements of the state variable are available. Using noisy measurements of the state variable, we propose two model-free iterative algorithms to solve the LQ problem. The proposed algorithms are variants of policy iterat...
• Tracking Control for Nonlinear Nonparametric Systems Based on the Stochastic Approximation Algorithm AI翻译
  作者：Feng, Wenhui; Zhao, Shixin
  作者单位：Shijiazhuang Tiedao University
  摘要：In this article, we study the tracking control problem for nonlinear nonparametric systems, and additive random observation noise is also taken into account. The dynamical function is allowed to be time varying and possess an arbitrary growth rate at control input. The control algorithm is designed on the basis of the stochastic approximation algorithm with expanding truncations, and it is found that there is a tradeoff between the growth rate of the dynamical function at control input and tha...
• Remote Estimation for Energy Harvesting Systems Under Multiplicative Noises: A Binary Encoding Scheme With Probabilistic Bit Flips AI翻译
  作者：Liu, Qinyuan; Wang, Zidong; Dong, Hongli; Jiang, Changjun
  作者单位：Tongji University; Tongji University; Brunel University; Northeast Petroleum University; Northeast Petroleum University
  摘要：In this article, we investigate the state estimation problem for a class of networked systems with energy harvesting technologies, where the sensor is capable of replenishing energy from the environment. The underlying system is subject to both additive and multiplicative stochastic noises, and the measurement is transmitted to the remote estimator only when the current energy storage is larger than the transmission energy consumption. A binary encoding scheme is utilized in the communication ...
• Stochastic MPC With Robustness to Bounded Parameteric Uncertainty AI翻译
  作者：Arcari, Elena; Iannelli, Andrea; Carron, Andrea; Zeilinger, Melanie N.
  作者单位：Swiss Federal Institutes of Technology Domain; ETH Zurich; University of Stuttgart
  摘要：In this article, we present a stochastic model predictive control approach for discrete-time LTI systems subject to bounded parameteric uncertainty and potentially unbounded stochastic additive noise. The proposed scheme makes use of homothetic tubes along the prediction horizon for a robust treatment of parameteric uncertainty. Stochastic noise is handled by tightening constraints using the concept of probabilistic reachable sets (PRS), which are typically constructed offline by exploiting no...
• Bounding the Distance to Unsafe Sets With Convex Optimization AI翻译
  作者：Miller, Jared; Sznaier, Mario
  作者单位：Northeastern University
  摘要：This work proposes an algorithm to bind the minimum distance between points on trajectories of a dynamical system and points on an unsafe set. Prior work on certifying safety of trajectories includes barrier and density methods, which do not provide a margin of proximity to the unsafe set in terms of distance. The distance estimation problem is relaxed to a Monge-Kantorovich-type optimal transport problem based on existing occupation-measure methods of peak estimation. Specialized programs may...
• Convergence Rate of Accelerated Average Consensus With Local Node Memory: Optimization and Analytic Solutions AI翻译
  作者：Yi, Jing-Wen; Chai, Li; Zhang, Jingxin
  作者单位：Wuhan University of Science & Technology; Zhejiang University; Swinburne University of Technology
  摘要：Previous research works have shown that adding local memory can accelerate the consensus. It is natural to question what is the fastest rate achievable by the M-tap memory acceleration, and what are the corresponding control parameters. This article introduces a set of effective and previously unused techniques to analyze the convergence rate of accelerated consensus with M-tap memory of local nodes and to design the control protocols. These effective techniques, including the Kharitonov stabi...
• Chaos and Order in Event-Triggered Control AI翻译
  作者：Gleizer, Gabriel de Albuquerque; Mazo, Manuel, Jr.
  作者单位：Delft University of Technology
  摘要：Event-triggered control (ETC) is claimed to provide significant reductions in sampling frequency when compared to periodic sampling, but little is formally known about its generated traffic. This work shows that ETC can exhibit very complex, even chaotic traffic, especially when the triggering condition is aggressive in reducing communications. First, by looking at the map dictating the evolution of states sampled, we characterize limit traffic patterns by observing invariant lines and planes ...
• Grid-Free Computation of Probabilistic Safety With Malliavin Calculus AI翻译
  作者：Cosentino, Francesco; Oberhauser, Harald; Abate, Alessandro
  作者单位：University of Oxford; Alan Turing Institute; University of Oxford
  摘要：This article concerns continuous-time, continuous-space stochastic dynamical systems described by stochastic differential equations (SDE). It presents a new approach to compute probabilistic safety regions, namely sets of initial conditions of the SDE associated to trajectories that are safe with a probability larger than a given threshold. The approach introduces a functional that is minimized at the border of the probabilistic safety region, then solves an optimization problem using techniqu...
• On Contraction Analysis of Switched Systems With Mixed Contracting-Noncontracting Modes via Mode-Dependent Average Dwell Time AI翻译
  作者：Yin, Hao; Jayawardhana, Bayu; Trenn, Stephan
  作者单位：University of Groningen
  摘要：This article studies contraction analysis of switched systems that are composed of a mixture of contracting and noncontracting modes. The first result pertains to the equivalence of the contraction of a switched system and the uniform global exponential stability of its variational system. Based on this equivalence property, sufficient conditions for a mode-dependent average dwell/leave-time based switching law to be contractive are established. Correspondingly, linear matrix inequality (LMI) ...
• Adaptive Containment Control for Heterogeneous MIMO Nonlinear Multiagent Systems With Unknown Direction Actuator Faults AI翻译
  作者：Guo, Xiaoyu; Wang, Chenliang; Dong, Zhen; Ding, Zhengtao
  作者单位：University of Manchester; Beihang University
  摘要：In this article, a novel output-feedback adaptive containment control scheme is proposed for a class of heterogeneous multiagent systems, where the agents are nonlinear multi-input multi-output systems whose relative degrees are allowed to be different. Unlike existing results, we only require the leading principal minors of agents' control gain matrices (CGMs) to be nonzero and take into account unknown direction actuator faults, which relaxes the restrictions on CGMs and enhances system reli...