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作者：Zhang, Jin-Xi; Ding, Jinliang; Chai, Tianyou
作者单位：Northeastern University - China
摘要：This article is concerned with the trajectory tracking control problem for the wheeled mobile robots (WMRs) subject to actuator faults. The challenge lies in the partial loss of effectiveness of the actuated wheels which results in the loss of strong controllability of the WMR, rendering the classical fault-tolerant control methods infeasible. To overcome this obstacle, a novel mixed-gain adaption technique is put forward and is skillfully combined with the robust prescribed performance contro...
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作者：Hua, Changchun; Tian, Wei; Li, Qidong
作者单位：Yanshan University; Hebei University of Science & Technology
摘要：This article investigates event-based fixed-time control problem for a class of uncertain high-order nonlinear systems. Different from existing event-triggered results, which can only achieve bounded or finite-time stability, this article studies on fixed-time stability, and unknown control coefficients are allowed in the system. To compensate uncertainties, an adaptive controller is designed with a switching parameter by utilizing adding a power integrator method. A logic switching rule is co...
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作者：Tabuada, Paulo; Gharesifard, Bahman
作者单位：University of California System; University of California Los Angeles
摘要：This brief note corrects the statements of Theorem 5.1 and Corollary 5.2 in (Tabuada and Gharesifard, 2023). The main consequence of these corrections is that the width of residual neural networks that suffices for universal approximation changes from n+1 to 2n+1. This is consistent with recent observations made in (Hwang, 2023) regarding the use of neural networks to approximate functions by diffeomorphisms.
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作者：Deutscher, Joachim; Gehring, Nicole; Jung, Nick
作者单位：Ulm University; Johannes Kepler University Linz
摘要：This article considers the backstepping state feedback and observer design for hyperbolic and parabolic PDEs, which are bidirectionally interconnected in a general coupling structure. Both PDE subsystems consist of coupled scalar PDEs with the heterodirectional hyperbolic PDE subsystem subject to actuation and sensing. By making use of a multistep approach to construct the transformation into a stable target system, it is shown that a backstepping state feedback and observer design only requir...
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作者：Wang, San; Wu, Zheng-Guang
作者单位：Zhejiang University
摘要：This article focuses on settling the energy-to-peak filtering problem for Markov jump systems subject to multiple constraints. The transition probabilities (TPs) are assumed to be nonhomogeneous. Incessantly changed TPs are governed by upper-level transition probabilities (UTPs) belonging to a homogeneous Markov chain. First, a novel dual hidden Markov model is constructed to characterize the mismatched phenomena when asynchronizations occur to the system mode and the TP mode. Second, followin...
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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...
