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作者:Zhang, Shuyuan; Wang, Lei; Xue, Bai; Meng, Deyuan; Wang, Qing-Guo
作者单位:Beihang University; Beihang University; Chinese Academy of Sciences; Chinese Academy of Sciences; Institute of Software, CAS; Beihang University; Beijing Normal University; Beijing Normal-Hong Kong Baptist University
摘要:This article is concerned with consensus for heterogeneous multiagent systems under distributed nonlinear control protocol. Based on general Lyapunov functions beyond the quadratic form, a less conservative consensus criterion is proposed in the presence of only a directed spanning tree. Then, the consensus problem for polynomial systems can be converted into a sum-of-squares programming problem, yielding polynomial Lyapunov functions efficiently to realize the consensus criterion verification...
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作者:Zhu, Lijun; Chen, Zhiyong
作者单位:Huazhong University of Science & Technology; Huazhong University of Science & Technology; University of Newcastle
摘要:In this article, we study a data-driven control method for the robust output regulation problem. The method exploits the parameterization property of a system from the observed data that do not necessarily satisfy the persistently exciting condition for system identification. It is based on a data informativity theory, which infers a system property for designing a controller for a whole family of systems (including the true system) that can generate the same observed data. The new idea is to ...
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作者:Zhu, Shuaibing; Zhou, Jin; Lu, Jinhu; Lu, Jun-An
作者单位:Hunan Normal University; Wuhan University; Beihang University; Chinese Academy of Sciences; Academy of Mathematics & System Sciences, CAS
摘要:In recent years, the synchronization problem of dynamical networks under adaptive intermittent control has been extensively studied, but it has not been well solved up to now. In this article, we further investigate this problem. The updating laws adopted here is simpler than that in much of the literature. First, boundedness of the adaptive control gain is proved to ensure practicality of adaptive control. Then, synchronization criteria for dynamical networks under adaptive intermittent contr...
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作者:Adelirad, Masoud; Afzalian, Ali A.
作者单位:Shahid Beheshti University; Shahid Beheshti University
摘要:A novel model predictive control strategy is proposed to determine an optimal control signal, which steers the states of a constraint piecewise affine system to a desired target point through suboptimal state trajectories, based on quadratic performance criteria. In piecewise affine systems, the number of possible switching sequences grows exponentially with the length of the prediction horizon that leads to multiple trajectories in the receding horizon strategy; and should be considered in ca...
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作者:Hakobyan, Astghik; Yang, Insoon
作者单位:Seoul National University (SNU); Seoul National University (SNU)
摘要:Distributionally robust control (DRC) aims to effectively manage distributional ambiguity in stochastic systems. While most existing works address inaccurate distributional information in fully observable settings, we consider a partially observable DRC problem for discrete-time linear systems using the Wasserstein metric. For a tractable solution, we propose a novel approximation method exploiting the Gelbrich bound of the Wasserstein distance. Using techniques from modern distributionally ro...
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作者:Sakhaei, Negar; Maleki, Zeinab; Ramazi, Pouria
作者单位:Isfahan University of Technology; Brock University
摘要:Whether a population of decision-makers reach a state of satisfactory decisions is a fundamental problem in studying collective behaviors. In the framework of evolutionary game theory, researchers used potential functions to establish equilibration under best-response and imitation update rules by imposing conditions on the individuals' utility functions, and in turn to control the population toward a desired equilibrium. Nevertheless, finding a potential function is often daunting, if not nea...
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作者:Zhang, Jing; Lu, Jianquan; Hadjicostis, Christoforos N.
作者单位:Southeast University - China; Southeast University - China; University of Cyprus
摘要:In this article, we study the problem of privacy-preserving average consensus from a different perspective. Previous research has mainly focused on designing privacy augmentation mechanisms for classical average consensus algorithms, which can lead to overhead (in the form of parameters exchanged between agents or extra privacy operations). Motivated by the framework of expressed and private opinions within social networks, we propose an alternative iterative algorithm to simultaneously update...
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作者:Wang, Le Yi; Yin, George; Lin, Feng; Polis, Michael P.; Chen, Wen
作者单位:Wayne State University; University of Connecticut; Oakland University; Wayne State University
摘要:This article investigates state feedback design for achieving almost-sure robust stabilization of randomly switched linear systems whose subsystems are uncontrollable and whose models are subject to nonlinear modeling errors due to, for example, linearization. Complex systems are often uncontrollable under a fixed configuration from a single control input. However, when control actions can be used sequentially and collaboratively through different system configurations, stabilization can be po...
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作者:Fotiadis, Filippos; Rovithakis, George A.
作者单位:University System of Georgia; Georgia Institute of Technology; Aristotle University of Thessaloniki
摘要:For a class of uncertain, multiple-input-multiple-output nonlinear systems, we consider the problem of prescribed performance tracking control under strict control input constraints. By prescribed performance, we mean that outputs of the system should track the given reference signals, with tracking errors confined within a user-specified performance envelope. However, as the controller imposing this desirable behavior is subject to inelastic control input constraints, the reference signals ar...
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作者:Zhao, Ren-Xi; Guo, Bao-Zhu
作者单位:Chinese Academy of Sciences; Academy of Mathematics & System Sciences, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; North China Electric Power University
摘要:In this article, the output regulation for a 1-D wave equation where the disturbances generated from an unknown finite-dimensional exosystem appear in all possible channels is studied. The system is first transformed into a new system for which the disturbance appears in tracking error only. An adaptive observer approach is adopted in investigation to estimate all possible unknown frequencies that have entered into a transformed new system. By the estimates of the unknown frequencies, we are a...