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作者:Xiao, Feng; Shi, Yang; Chen, Tongwen
作者单位:North China Electric Power University; North China Electric Power University; University of Victoria; University of Alberta
摘要:This article presents a unified framework for the stability and performance analysis of networked linear control systems with asynchronous continuous-time or discrete-time event-triggering. In the networked system, the multiple outputs of the plant and the controller are independently transmitted via a single shared or multiple channels based on local event-triggering conditions. Regarding the restrictions of physical devices, in the event-checking procedure, an inactive period of time is allo...
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作者:Jia, Jiajia; van Waarde, Henk J.; Trentelman, Harry L.; Camlibel, M. Kanat
作者单位:University of Groningen
摘要:This article deals with strong structural controllability of linear systems. In contrast to the existing work, the structured systems studied in this article have a so-called zero/nonzero/arbitrary structure, which means that some of the entries are equal to zero, some of the entries are arbitrary but nonzero, and the remaining entries are arbitrary (zero or nonzero). We formalize this in terms of pattern matrices, whose entries are either fixed zero, arbitrary nonzero, or arbitrary. We establ...
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作者:Halperin, Ido; Agranovich, Grigory; Lew, Beni
作者单位:Ariel University; Ariel University; VOLCANI INSTITUTE OF AGRICULTURAL RESEARCH
摘要:Bilinear state-space models, a type of simple nonlinear model, have different applications. Optimal control of such models is often used for performance improvement. A solution for a new class of optimization problem, which is defined as inhomogeneous discrete-time bilinear plant with control trajectory constraints and a biquadratic performance index, is presented. Krotov's method is used for computing a candidate solution for this problem. A suitable sequence of improving functions, which are...
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作者:Jonker, Jonathan; Zheng, Peng; Aravkin, Aleksandr Y.
作者单位:University of Washington; University of Washington Seattle; University of Washington; University of Washington Seattle
摘要:Dynamic inference problems in autoregressive (AR/ARMA/ARIMA), exponential smoothing, and navigation are often formulated and solved using state-space models (SSMs), which allow a range of statistical distributions to inform innovations and errors. In many applications, the main goal is to identify not only the hidden state, but also additional unknown model parameters (e.g., AR coefficients or unknown dynamics). We show how to efficiently optimize over model parameters in SSM that use smooth p...
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作者:Ortega, Romeo; Nuno, Emmanuel; Bobtsov, Alexey
作者单位:Instituto Tecnologico Autonomo de Mexico; ITMO University; Universidad de Guadalajara
摘要:A novel approach to solve the problem of distributed state estimation of linear time-invariant systems is proposed in this article. It relies on the application of parameter-estimation-based observers, where the state observation task is reformulated as a parameter estimation problem. In contrast with existing results, our solution achieves convergence in finite time, without injection of high gain, and imposes very weak assumptions on the communication graph-namely, the existence of an open H...
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作者:Shao, Jinliang; Zheng, Wei Xing; Shi, Lei; Cheng, Yuhua
作者单位:University of Electronic Science & Technology of China; Shenzhen Institute of Artificial Intelligence & Robotics for Society; Western Sydney University
摘要:In this article, we investigate leader-follower flocking for the Cucker-Smale model with lossy links and general weight functions. Here, the loss phenomenon of the control packages from the controller to the actuator is characterized by a Bernoulli stochastic variable and the edge weights of the interaction network are determined by a general update rule based on the distance between agents. A method based on the products of substochastic matrices is developed to analyze the flocking behavior ...
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作者:Sun, Jiwei; Lin, Wei
作者单位:Dongguan University of Technology; University System of Ohio; Case Western Reserve University
摘要:This article addresses the problem of global state regulation with stability by delay-free feedback for feedforward systems with large delays in both state and input. A gain-based nested saturation control strategy is developed to treat delays in the chain of integrators, state, and input simultaneously. It is shown that global state regulation with stability is possible by a delay-free, gain-based nested saturation compensator whose gain is updated dynamically. The effectiveness of the gain-b...
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作者:Kang, Yunyi; Mathesen, Logan; Pedrielli, Giulia; Ju, Feng; Lee, Loo Hay
作者单位:Arizona State University; Arizona State University-Tempe; National University of Singapore
摘要:Recent advances in sensing, data analytics, and manufacturing technologies (e.g., 3-D printing, soft robotics, nanotechnologies, etc.) provide the potential to produce highly customized products by allowing flexible system design, endless device configurations, and unprecedented information flows. These opportunities also increase the complexity of controlling such systems optimally, which typically requires fast exploration of an increasingly large number of alternative operation strategies. ...
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作者:Rubagotti, Matteo; Incremona, Gian Paolo; Raimondo, Davide M.; Ferrara, Antonella
作者单位:Nazarbayev University; Polytechnic University of Milan; University of Pavia
摘要:In this article, a discrete-time sliding mode control law is proposed for nonlinear (possibly multiinput) systems, in the presence of mixed input-state constraints and additive bounded disturbances. The control law is defined by formulating a nonlinear predictive control problem aimed at generating a control input that imitates an unconstrained discrete-time sliding mode law. In addition to satisfying input and state constraints, the resulting control law has all the properties of discrete-tim...
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作者:Ha, Seung-Yeal; Kim, Doheon; Schloder, Franz Wilhelm
作者单位:Seoul National University (SNU); Seoul National University (SNU); Korea Institute for Advanced Study (KIAS); University of Milano-Bicocca
摘要:In this article, we present a new Cucker-Smale model on smooth Riemannian manifolds using the concepts of covariant derivative and parallel transport, and we also study its emergent dynamics under an a priori assumption on the energy functional. For Euclidean space, our proposed model coincides with the original Cucker-Smale model. As concrete examples, we consider three Riemannian manifolds: the unit 2-sphere, the unit circle, and the Poincare half-plane, and provide explicit reductions from ...