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作者:Cheng, Xiaoxiao; Tan, Ying; Mareels, Iven
作者单位:Imperial College London; University of Melbourne
摘要:Vibrational control seeks to stabilize an unstable system by judiciously injecting a state-free high-frequency dither. This article presents some robustness properties of vibrational control with respect to additive disturbances in a nonlinear system. We assume that, without disturbances, the appropriately averaged system is regionally asymptotically stable. Using perturbation techniques, our first result shows that the stabilization realized through vibrational control is robust with respect ...
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作者:Hanan, Avi; Levant, Arie; Jbara, Adam
作者单位:Tel Aviv University
摘要:The proposed simple modification of discrete homogeneous sliding-mode-based differentiators improves the accuracy and significantly lowers the output chattering in the absence of noises, while preserving the differentiation accuracy in their presence. The approach is extended to general discretely sampled homogeneous discontinuous systems. Numeric experiments confirm the theoretical results.
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作者:Wang, Pengfei; Guo, Wenya; Su, Huan
作者单位:Harbin Institute of Technology
摘要:This article is concerned with the input-to-state stability (ISS) and stochastic input-to-state stability (SISS) of impulsive stochastic nonlinear systems. By constructing a general SISS-Lyapunov function, which takes the exponential SISS-Lyapunov function as a special case, the ISS criteria are obtained, respectively, for destabilizing and stabilizing impulses. It should be stressed that we impose the average dwell-time (ADT) condition for destabilizing impulses and reverse average dwell-time...
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作者:Wang, Zhiguo; Shen, Xiaojing; Liu, Haiqi; Meng, Fanqin; Zhu, Yunmin
作者单位:Sichuan University
摘要:In this article, we propose a dual set membership filter for nonlinear dynamic systems with additive unknown but bounded noises, and it has three distinct advantages. First, the nonlinear system is translated into the linear system by leveraging a semi-infinite programming, rather than linearizing the nonlinear function. The semi-infinite programming is to find an ellipsoid bounding the nonlinear transformation of an ellipsoid, which aims to compute a tight ellipsoid to cover the state. Second...
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作者:Han, Zhiji; Liu, Zhijie; Kang, Wen; He, Wei
作者单位:University of Science & Technology Beijing; University of Science & Technology Beijing
摘要:This article studies a vibration and disturbance rejection problem of a wind turbine tower under exogenous perturbations. The tower dynamics is captured by a nonhomogeneous Euler-Bernoulli beam model. The dissipativity of the system is realized by a boundary feedback control solution with a multivalued symbolic function. A Lyapunov-based stability analysis is established to assess the deflection of the tower is uniformly bounded even subject to exogenous disturbances. The extended Filippov fra...
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作者:Liu, Kun-Zhi; Teel, Andrew R.; Sun, Xi-Ming
作者单位:Dalian University of Technology; University of California System; University of California Santa Barbara
摘要:The event-triggered control problem for stochastic nonlinear systems is addressed in the presence of stochastic transmission protocols. A stochastic event-triggered transmission strategy is first proposed, which implies that the triggering condition is detected at stochastically distributed detecting instants. The entire system is modeled as a stochastic hybrid system and a new Lyapunov function is constructed to analyze stability of the resulting system. Stability conditions are derived and e...
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作者:Mellone, Alberto; Scarciotti, Giordano
作者单位:Imperial College London
摘要:We address the output regulation problem for a general class of linear stochastic systems. Specifically, we formulate and solve the ideal full-information and output-feedback problems, obtaining perfect, but noncausal, asymptotic regulation. A characterization of the problem solvability is deduced. We point out that the ideal problems cannot be solved in practice because they unrealistically require that the Brownian motion affecting the system is available for feedback. Drawing from the ideal...
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作者:Sayin, Muhammed O.; Basar, Tamer
作者单位:Massachusetts Institute of Technology (MIT); University of Illinois System; University of Illinois Urbana-Champaign
摘要:In this article, we address Bayesian persuasion between a sender and a receiver with state-dependent quadratic cost measures for general classes of distributions. The receiver seeks to make mean-square-error estimate of a state based on a signal sent by the sender while the sender signals strategically in order to control the receiver's estimate in a certain way. Such a scheme could model, e.g., deception and privacy, problems in multiagent systems. Existing solution concepts are not viable si...
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作者:Tzoumas, Vasileios; Jadbabaie, Ali; Pappas, George J.
作者单位:University of Michigan System; University of Michigan; Massachusetts Institute of Technology (MIT); Massachusetts Institute of Technology (MIT); University of Pennsylvania
摘要:Emerging applications of control, estimation, and machine learning, from target tracking to decentralized model fitting, pose resource constraints that limit which of the available sensors, actuators, or data can be simultaneously used across time. Therefore, many researchers have proposed solutions within discrete optimization frameworks where the optimization is performed over finite sets. By exploiting notions of discrete convexity, such as submodularity, the researchers have been able to p...