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作者：Hara, Shinji; Kao, Chung-Yao; Khong, Sei Zhen; Iwasaki, Tetsuya; Hori, Yutaka
作者单位：Institute of Science Tokyo; Tokyo Institute of Technology; National Sun Yat Sen University; University of California System; University of California Los Angeles; Keio University
摘要：This article is concerned with a new optimization problem named phase change rate maximization for single-input-single-output linear time-invariant systems. The problem relates to two control problems, namely robust instability analysis against stable perturbations and minimum-norm strong stabilization. We define an index of the instability margin called robust instability radius (RIR) as the smallest -norm of a stable perturbation that stabilizes a given unstable system. This article has two ...
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作者：Tao, Yue-Yue; Wu, Zheng-Guang
作者单位：City University of Hong Kong; Zhejiang University
摘要：This article aims to study the asynchronous static output-feedback (S-OF) stabilization problem for discrete-time Markovian jump linear systems (MJLSs) with nonideal state and mode detection. Since the system state and mode cannot always be obtained ideally, an asynchronous S-OF controller is designed whose mode can be estimated from the system mode via a hidden Markovian model (HMM). A system augmentation approach is used to obtain an equivalent augmented system, in which the input and (contr...
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作者：Li, Xuefang; Huang, Deqing
作者单位：Sun Yat Sen University; Sun Yat Sen University; Southwest Jiaotong University
摘要：This work concerns adaptive iterative learning control (AILC) for nonsquare multiple-input--multiple-output (MIMO) nonlinear systems. With newly introduced techniques in dealing with the nonsquare input distribution matrix, a novel robust AILC (RAILC) approach is proposed. The method is not only effective to address the perfect trajectory tracking problem for both underactuated or overactuated systems, but also shows impressive robustness and adaptiveness to various system uncertainties and ex...
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作者：Li, Xuerong; Zhang, Ping; Dong, Hongli
作者单位：Northeast Petroleum University; Northeast Petroleum University
摘要：The widespread use of the network in control systems significantly increases the risk of cyber attacks. As a kind of cyber attacks, covert attack has attracted much attention in recent years. In a covert attack, the adversary can control the plant arbitrarily through the communication network without being detected by the monitoring system. This article is concerned with a new covert attack strategy called the robust covert attack on the cyber-physical systems. Different from the standard cove...
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作者：Falconi, Lucia; Ferrante, Augusto; Zorzi, Mattia
作者单位：University of Padua
摘要：This article deals with the dynamic factor analysis problem for an ARMA process. To robustly estimate the number of factors, we construct a confidence region centered in a finite sample estimate of the underlying model, which contains the true model with a prescribed probability. In this confidence region, the problem, formulated as a rank minimization of a suitable spectral density, is efficiently approximated via a trace norm convex relaxation. The latter is addressed by resorting to the Lag...
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作者：Hu, Zhongyao; Chen, Bo; Wang, Rusheng; Yu, Li
作者单位：Zhejiang University of Technology
摘要：In this article, the authors aim to study the state estimation problem under the stochastic event-triggered (SET) schedule. A posterior-based SET mechanism is proposed, which determines whether to transmit data by the effect of the measurement on the posterior estimate. Since this SET mechanism considers the whole posterior probability density function, it has better information screening capability and utilization than the existing SET mechanisms that only consider the first-order moment info...
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作者：Polyakov, Andrey
作者单位：Centre National de la Recherche Scientifique (CNRS); Universite de Lille; Centrale Lille; Inria
摘要：The methodology of the unit sliding mode control design (known since 1970s) for linear systems is revised based on the concept of the generalized homogeneity. The restriction about a consistency of the number of control inputs with the dimension of the sliding surface is eliminated. A simple procedure of control parameters tuning based on a known maximal magnitude of matched perturbations is developed. To deal with perturbations of unknown magnitude, a homogeneous sliding mode control with int...
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作者：Lu, Quoc-Hung; Fergani, Soheib; Jauberthie, Carine
作者单位：Centre National de la Recherche Scientifique (CNRS); Universite de Toulouse; Universite Toulouse III - Paul Sabatier
摘要：This article is concerned with analytical developments of results first introduced by Lu et al. (2019). These developments are devoted to the optimization of upper bounds of the interval covariance matrices appearing in the interval Kalman filter. The proposed study is mainly highlighted through two aspects. First, the optimization is further performed by considering a class of upper bounds and minimizing the traces of these bounds in two stages (in terms of a gain matrix and then with respect...
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作者：Samanipour, Pouya; Poonawala, Hasan A.
作者单位：University of Kentucky
摘要：This article presents algorithms to solve analysis and controller synthesis problems for dynamical systems modeled as a recurrent single-hidden-layer rectified linear unit neural network (ReLU NN), or equivalently, a piecewise affine dynamical system. Such models are interesting since they may arise through the use of modern machine learning methods for system identification, or as closed-loop solutions in certain classes of model predictive control (MPC) problems. A key idea in the proposed a...
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作者：Takakura, Shokichi; Sato, Kazuhiro
作者单位：University of Tokyo
摘要：In this article, we consider the static output feedback control for linear quadratic regulator problems with structured constraints under the assumption that system parameters are unknown. To solve the problem in the model free setting, we propose the policy gradient algorithm based on the gradient projection method and show its global convergence to epsilon-stationary points. In addition, we introduce a variance reduction technique and show both theoretically and numerically that it significa...
