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作者：De Persis, Claudio; Gadginmath, Darshan; Pasqualetti, Fabio; Tesi, Pietro
作者单位：University of Groningen; University of California System; University of California Riverside; University of Florence
摘要：Controlling nonlinear systems is challenging, especially when data are used to address model uncertainties. By contrast, linear systems are well understood. Thus, a common strategy is to transform the nonlinear system into a linear one through a change of coordinates and feedback-a technique known as feedback linearization. Here, we consider the feedback linearization problem of an unknown system when the solution must be found using experimental data. We propose a new method that learns the c...
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作者：Wang, Yunan; Hu, Chuxiong; Lin, Yujie; Li, Zeyang; Lin, Shize; He, Suqin
作者单位：Tsinghua University; Tsinghua University; Tsinghua University
摘要：Most existing necessary conditions for optimal control based on adjoining methods require both state and costate information, yet the unobservability of costates for a given feasible trajectory impedes the determination of optimality in practice. This article establishes a novel theoretical framework for time-optimal control of controllable linear systems with a single input, proposing the augmented switching law (ASL) that represents the input control and the feasibility in a compact form. Gi...
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作者：Cecilia, Andreu; Zoboli, Samuele; Astolfi, Daniele; Serres, Ulysse; Andrieu, Vincent
作者单位：Universitat Politecnica de Catalunya; Centre National de la Recherche Scientifique (CNRS); Communaute d'universites et etablissements de Toulouse (Comue); Centre National de la Recherche Scientifique (CNRS); Universite Lyon 1; CNRS - Institute for Engineering & Systems Sciences (INSIS)
摘要：Recently, the concept of $\mathit {k}$-contraction has been introduced as a promising generalization of contraction for dynamical systems. However, the study of $\mathit {k}$-contraction properties has faced significant challenges due to the reliance on complex mathematical objects called matrix compounds. As a result, related control design methodologies have yet to appear in the literature. In this article, we overcome existing limitations and propose new sufficient conditions for $\mathit {...
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作者：Niu, Mengfei; Wen, Guanghui; Zheng, Wei Xing; Ge, Quanbo
作者单位：Southeast University - China; Southeast University - China; Western Sydney University; Nanjing University of Information Science & Technology
摘要：This article is concerned with the issue of distributed hierarchical secure estimation over wireless cluster networks under denial-of-service (DoS) attacks. Here, communication interactions rely on hierarchical networks with local wireless sensor networks in the first layer and wireless cluster networks in the second layer. To reduce communication consumption over local wireless sensor networks, recursive event-triggered sequential local estimators are first proposed in each cluster head (CH) ...
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作者：Doan, Thinh T.
作者单位：University of Texas System; University of Texas Austin
摘要：This article proposes to develop a new variant of the two-time-scale stochastic approximation to find the roots of two coupled nonlinear operators, assuming that only noisy samples of these operators can be observed. Our key idea is to leverage the classic Polyak-Ruppert averaging technique to dynamically estimate the operators through their samples. The estimated values of these averaging steps will then be used in the two-time-scale stochastic approximation updates to find the desired soluti...
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作者：Astolfi, Alessandro; Bhattacharjee, Debraj; Manca, Giorgio; Sassano, Mario
作者单位：King Abdullah University of Science & Technology; Imperial College London; Politecnico di Bari; University of Rome Tor Vergata
摘要：The steady-state optimal filtering problem for linear systems is revisited with the objective of establishing further insights on the structure of the underlying solution. It is shown that, in addition to the invariance property of a suitably defined hyperplane, the optimal filter is related to a triangularizing change of coordinates for certain Hamiltonian dynamics associated to the filtering problem. The implication of the above observation is twofold. First, the novel interpretation admits ...
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作者：John, Varkey M.; Vamvoudakis, Kyriakos G.
作者单位：University System of Georgia; Georgia Institute of Technology; University System of Georgia; Georgia Institute of Technology
摘要：In this article, we explore deception mechanisms in the context of game-theoretic learning. We first examine a scenario where certain agents, referred to as intelligent players (IPs), given that they have increased intelligence, attempt to discern the scores of the learning mechanisms used by agents of lower intelligence, referred to as agents. To counteract this, agents alter the values of the score function to mislead IPs, thus obstructing the ability to learn the learning parameters of agen...
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作者：Yuan, Liwei; Ishii, Hideaki
作者单位：Shanghai Jiao Tong University; University of Tokyo
摘要：We study the problem of resilient leader-follower consensus of multiagent systems in the presence of adversarial agents, where agents' communication is modeled by time-varying topologies. The objective is to develop distributed algorithms for the nonfaulty/normal follower agents to track an arbitrary reference value propagated by a set of leaders while they are in interaction with the unknown adversarial agents. Our approaches are based on the weighted mean subsequence reduced algorithms with ...
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作者：Mao, Xin; Chen, Can
作者单位：University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina; University of North Carolina Chapel Hill
摘要：Model reduction plays a critical role in system control, with established methods, such as balanced truncation, widely used for linear systems. However, extending these methods to nonlinear settings, particularly polynomial dynamical systems that are often used to model higher order interactions in physics, biology, and ecology, remains a significant challenge. In this article, we develop a novel model reduction method for homogeneous polynomial dynamical systems (HPDSs) with linear input and ...
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作者：Huang, Qinbo; Sun, Jitao
作者单位：Tongji University; Nantong University
摘要：This note studies the stability problem for homogeneous impulsive systems with a fixed sequence of impulse times. We prove that the local stability can be extended globally for such systems with degree pair (0, 0). Moreover, by homogeneity-based methods, finite-time (exponential or nearly fixed-time) stability criteria are established for homogeneous impulsive systems, along with the estimate of the settling-time. It is shown that the convergence rate of homogeneous impulsive systems is determ...
