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作者:Li, Wuquan; Krstic, Miroslav
作者单位:Ludong University; University of California System; University of California San Diego
摘要:We present mean-nonovershooting tracking control designs for stochastic strict-feedback nonlinear systems. Compared with the existing stochastic nonlinear tracking designs, the advantage of our design is that arbitrary reference trajectories can be tracked from below. We first consider a special class of stochastic nonlinear systems where the diffusion terms satisfy the linear growth condition and the drift terms are in special triangular forms. A new controller is designed to guarantee that t...
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作者:Yue, Zuogong; Thunberg, Johan; Ljung, Lennart; Yuan, Ye; Goncalves, Jorge
作者单位:University of Luxembourg; Halmstad University; Linkoping University; Huazhong University of Science & Technology
摘要:Network reconstruction of dynamical continuous-time (CT) systems is motivated by applications in many fields. Due to experimental limitations, especially in biology, data can be sampled at low frequencies, leading to significant challenges in network inference. We introduce the concept of system aliasing and characterize the minimal sampling frequency that allows reconstruction of CT systems from low sampled data. A test criterion is also proposed to detect the presence of system aliasing. Wit...
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作者:Laurini, Mattia; Consolini, Luca; Locatelli, Marco
作者单位:University of Parma
摘要:In this article, we consider a finite-elementapproximation of the Bellman equation for the optimal control of switched systems. We show that the problem belongs to a special class that we studied in a previous work, for which we developed an efficient solution algorithm. As an application, we present the problem of generating parking maneuvers for self-driving vehicles on two typical urban parking scenarios. The vehicle is described by four different switched systems in which every switching i...
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作者:Rezaee, Hamed; Parisini, Thomas; Polycarpou, Marios M.
作者单位:Imperial College London; University of Trieste; University of Cyprus; University of Cyprus
摘要:The resilient consensus problem over a class of discrete-time linear multiagent systems is addressed. Because of external cyber-attacks, some agents are assumed to be malicious and not following a desired cooperative behavior. Thus, the objective consists in designing a control strategy for the healthy agents to reach consensus upon their state vectors, whereas due to interaction among the agents, the malicious agents try to prevent them to achieve consensus. Although this problem has been inv...
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作者:Guo, Baiwei; Karaca, Orcun; Summers, Tyler; Kamgarpour, Maryam
作者单位:Swiss Federal Institutes of Technology Domain; Ecole Polytechnique Federale de Lausanne; Swiss Federal Institutes of Technology Domain; ETH Zurich; University of Texas System; University of Texas Dallas; University of British Columbia
摘要:Actuator placement is an active field of research, which has received significant attention for its applications in complex dynamical networks. In this article, we study the problem of finding a set of actuator placements minimizing the metric that measures the average energy consumed for state transfer by the controller, while satisfying a structural controllability requirement and a cardinality constraint on the number of actuators allowed. As no computationally efficient methods are known t...
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作者:Hota, Ashish R.; Sundaram, Shreyas
作者单位:Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Kharagpur; Purdue University System; Purdue University
摘要:We consider a game-theoretic model where individuals compete over a shared failure-prone system or resource. We investigate the effectiveness of a taxation mechanism in controlling the utilization of the resource at the Nash equilibrium when the decision-makers have behavioral risk preferences, captured by prospect theory. We first observe that heterogeneous prospect-theoretic risk preferences can lead to counter-intuitive outcomes. In particular, for resources that exhibit network effects, ut...
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作者:Aguado-Rojas, Missie; Hoang, Trong Bien; Pasillas-Lepine, William; Loria, Antonio; Respondek, Witold
作者单位:Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); Universite de Rouen Normandie
摘要:We present a switching observer for a class of nonuniformly observable systems that are affine in the unmeasured states and nonlinear in the measured output. Using a singular time-rescaling, the dynamics of the estimation error is transformed into that of a bimodal switched linear system. Sufficient conditions that guarantee the observer's uniform asymptotic stability are provided; these are stated in terms of persistency of excitation and dwell-time of the (output-dependent) time-scaling func...
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作者:Bin, Michelangelo; Marconi, Lorenzo
作者单位:Imperial College London; University of Bologna
摘要:In this article, we consider the joint problems of state estimation and model identification for a class of continuous-time nonlinear systems in the output-feedback canonical form. An adaptive observer is proposed that combines an extended high-gain observer and a discrete-time identifier. The extended observer provides the identifier with a dataset permitting the identification of the system model and the identifier adapts the extended observer according to the new estimated model. The design...
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作者:Gentile, Basilio; Paccagnan, Dario; Ogunsula, Bolutife; Lygeros, John
作者单位:Imperial College London; Bloomberg L.P.; Swiss Federal Institutes of Technology Domain; ETH Zurich
摘要:In the traditional game-theoretic set up, where agents select actions and experience corresponding utilities, a Nash equilibrium is a configuration where no agent can improve their utility by unilaterally switching to a different action. In this article, we introduce the novel notion of inertial Nash equilibrium to account for the fact that in many practical situations switching action does not come for free. Specifically, we consider a population game and introduce the coefficients c(ij) desc...
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作者:Hadjicostis, Christoforos N.; Dominguez-Garcia, Alejandro D.
作者单位:University of Cyprus; University of Illinois System; University of Illinois Urbana-Champaign
摘要:In this article, we consider a flow network that is described by a digraph, each edge of which can admit a flow within a certain interval, with non-negative end points that correspond to lower and upper flow limits. We propose and analyze a distributed iterative algorithm for solving the so-called feasible circulation problem, which consists of computing flows that are within the given intervals at each edge and balance the total inflow and the total outflow at each node. Unlike previously pro...