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作者：Wang, Jian; Zimenko, Konstantin; Polyakov, Andrey; Efimov, Denis
作者单位：Hangzhou Dianzi University; ITMO University; Universite de Lille; Inria; Centrale Lille; Centre National de la Recherche Scientifique (CNRS); CNRS - Institute for Information Sciences & Technologies (INS2I)
摘要：A linear time-varying state observer is presented for a chain of integrators having bounded disturbances in the last equation. It is demonstrated that in the noise-free setting, for the continuous-time realization, the estimation error converges to zero with a hyperexponential rate (faster than any exponential) uniformly in the disturbance. An implicit discretization scheme of the observer is proposed, which in the discrete time preserves all the main properties of the continuous-time counterp...
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作者：Eising, Jaap; Cortes, Jorge
作者单位：Swiss Federal Institutes of Technology Domain; ETH Zurich; University of California System; University of California San Diego
摘要：This article introduces a notion of data informativity for stabilization tailored to continuous-time signals and systems. We establish results comparable to those known for discrete-time systems with sampled data. We justify that additional assumptions on the properties of the noise signals are needed to understand when sampled versions of continuous-time signals are informative for stabilization, thereby introducing the notions of square Lipschitzness and total bounded variation. This allows ...
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作者：Goel, Raghavv; Roy, Sayan Basu
作者单位：Carnegie Mellon University
摘要：This article proposes a composite adaptive control architecture using dual adaptation scheme for dynamical systems comprising time-varying uncertain parameters. While majority of the adaptive control schemes in literature address the case of constant parameters, recent research has conceptualized improved adaptive control techniques for time-varying systems with rigorous stability proofs. The proposed work is an effort toward a similar direction, where a novel dual adaptation mechanism is intr...
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作者：Dolk, V. S.; Scheres, K. J. A.; Postoyan, R.; Heemels, W. P. M. H.
作者单位：Eindhoven University of Technology; Centre National de la Recherche Scientifique (CNRS); Universite de Lorraine
摘要：We present a framework for the design of time- and event-triggered communication schemes for a broad class of multiagent systems (MAS). The framework is general in the sense that we consider a class of heterogeneous nonlinear MAS with directed communication graphs subject to disturbances and the inevitable imperfections induced by packet-based networked communication, such as time-varying transmission delays and intervals. Under suitable conditions, the designed distributed time- or event-trig...
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作者：Xing, Wei; Zhao, Xudong; Li, Yuzhe; Liu, Le
作者单位：Hainan University; Dalian University of Technology; Northeastern University - China
摘要：This article concentrates on the linear quadratic control of cyber-physical systems subject to denial-of-service attacks. A Stackelberg game framework is proposed to analyze the strategic interaction between a sensor and an attacker considering a standard block fading wireless communication channel. The reward function composing of the linear quadratic control consumption and the power consumption is provided on account of energy constraints of the sensor and the attacker. To proactively overc...
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作者：Gallegos, Javier A.; Barbosa, Karina A.
作者单位：Pontificia Universidad Catolica de Chile; Universidad de Santiago de Chile
摘要：A set-theoretical approach based on Minkowski-Lyapunov functions is proposed to study the stability of polytopic systems in the linear parameter-varying (LPV) form. In contrast to the one based on quadratic Lyapunov functions, the proposed approach provides necessary and sufficient conditions for stability in both discrete and continuous time. Remarkably, the resulting conditions are computationally tractable and can be verified using algorithms with guaranteed convergence, in contrast to othe...
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作者：Wan, Fangzhe; Zhao, Xueyan; Deng, Feiqi; Huang, Yongjia
作者单位：South China University of Technology
摘要：In this article, the design of periodically intermittent controller (PIC) using sampled-data feedback for hybrid stochastic delay systems (SDSs) with asynchronous switching is studied. This article can be divided into two parts. First, the design of sampled-data-based controllers (SDBCs) via lifting technique (LT) for SDSs with asynchronous switching is discussed. Then, for SDSs with SDBCs, this article takes a further step to design sampled-data-based PIC, which is also based on the LT. For S...
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作者：Liu, Yueyang; Hu, Qinglei; Feng, Gang
作者单位：Beihang University; City University of Hong Kong
摘要：This article concerns the construction of a scalar valued analytic map, which we term as the navigation function, on three-manifold with boundary as a disjoint union of Hopf tori. Although it is well known that the existence of smooth navigation functions is guaranteed on any smooth manifold, the exact form of the navigation function on three-manifold with a disjoint union of Hopf tori as its boundary is yet to be explored. To bridge this gap, we propose a novel scalar map on the specified man...
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作者：Chen, Xiuqiong; Sun, Zeju; Tao, Yangtianze; Yau, Stephen S. -T.
作者单位：Renmin University of China; Tsinghua University; Tsinghua University
摘要：In numerous application areas, high-dimensional nonlinear filtering is still a challenging problem. The introduction of deep learning and neural networks has improved the efficiency of classical algorithms and they perform well in many practical tasks. However, a theoretical interpretation of their feasibility is still lacking. In this article, we exploit the representational ability of recurrent neural networks (RNNs) and provide a computationally efficient and optimal framework for nonlinear...
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作者：Moreschini, Alessio; Bin, Michelangelo; Astolfi, Alessandro; Parisini, Thomas
作者单位：Imperial College London; University of Bologna; University of Cyprus; University of Rome Tor Vergata; Aalborg University; University of Trieste
摘要：Passivity is a well-established concept for continuous-time systems. Yet, its application to discrete time, delay, or other classes of systems is somewhat limited, leading to inconsistencies and disparities. In this article, we study a new notion, $\varrho$-passivity, which reduces to standard passivity in the continuous-time case but addresses some of the aforementioned limitations when applied to other classes of systems. In particular, in an abstract input-output setting, we show that $\var...
