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作者:Boskos, Dimitris; Cortes, Jorge; Martinez, Sonia
作者单位:Delft University of Technology; University of California System; University of California San Diego
摘要:This article builds Wasserstein ambiguity sets for the unknown probability distribution of dynamic random variables leveraging noisy partial-state observations. The constructed ambiguity sets contain the true distribution of the data with quantifiable probability and can be exploited to formulate robust stochastic optimization problems with out-of-sample guarantees. We assume the random variable evolves in discrete time under uncertain initial conditions and dynamics, and that noisy partial me...
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作者:Ding, Haijin; Zhang, Guofeng
作者单位:Hong Kong Polytechnic University; Universite Paris Saclay; Hong Kong Polytechnic University
摘要:The purpose of this article is to study two-photon dynamics induced by the coherent feedback control of a cavity quantum electrodynamics (cavity-QED) system coupled to a waveguide. In this setup, the two-level system in the cavity can work as a photon source, and the photon emitted into the waveguide can reinteract with the cavity-QED system many times after the transmission and reflection in the waveguide, during which the feedback can tune the number of the photons in and out of the cavity. ...
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作者:Rivera, Phillip; Kobilarov, Marin; Diaz-Mercado, Yancy
作者单位:Johns Hopkins University; Johns Hopkins University Applied Physics Laboratory; Johns Hopkins University; University System of Maryland; University of Maryland College Park
摘要:Scalable pursuer coordination for reach-avoid games against a fast evader are developed leveraging coverage control over manifolds. The maintenance of a manifold, termed defense surface, prevents the evader and its target from occupying the same half-space and shown sufficient as a cooperative capture strategy. Nonlinear control synthesis continually reconfigures the pursuers to enable a defense surface via coverage. Simulation results empirically validate that the proposed condition serves as...
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作者:Rezaee, Hamed; Parisini, Thomas; Polycarpou, Marios M.
作者单位:Imperial College London; Imperial College London; University of Trieste; University of Cyprus; University of Cyprus
摘要:Cooperative adaptive cruise control (CACC) in leaderless scenario is addressed in this article. The common idea in CACC is that a leader vehicle determines the steady-state speed of the platoon without considering feedback from other vehicles. The main contribution of this article is to propose a control strategy such that each vehicle in a leaderless platoon keeps a desired distance from its preceding vehicle, determined based on the constant time-gap spacing policy, and simultaneously, all t...
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作者:Strecker, Timm; Cantoni, Michael; Aamo, Ole Morten
作者单位:University of Melbourne; Norwegian University of Science & Technology (NTNU)
摘要:In this article, we present an event-triggered boundary control scheme for hyperbolic systems. The trigger condition is based on predictions of the state on determinate sets, and the control input is updated only when the predictions deviate from the reference by a given margin. Nominal closed-loop stability, the absence of Zeno behavior, and robustness to uncertainty and disturbances, are all established analytically. For the special case of linear systems, the trigger condition can be expres...
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作者:Fioravanti, Camilla; Makridis, Evagoras; Oliva, Gabriele; Vrakopoulou, Maria; Charalambous, Themistoklis
作者单位:University Campus Bio-Medico - Rome Italy; University of Cyprus
摘要:This article considers a strongly connected network of agents, each capable of partially observing and controlling a discrete-time linear time-invariant (LTI) system that is jointly observable and controllable. Additionally, agents collaborate to achieve a shared estimated state, computed as the average of their local state estimates. Recent studies suggest that increasing the number of average consensus steps between state estimation updates allows agents to choose from a wider range of state...
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作者:Hosseinzadeh, Mehdi
作者单位:Washington State University
摘要:The explicit reference governor (ERG) is an add on unit that provides the constraint handling capability to a prestabilized system by providing the system with an applied reference which is the best approximation of the desired reference at any time and converges to the desired reference. One of the main strengths of ERG is that it does not make use of any online optimization, which makes it an appropriate solution for real-time applications; in particular, it has been shown that ERG has poten...
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作者:Koehler, Matthias; Mueller, Matthias A.; Allgoewer, Frank
作者单位:University of Stuttgart; Leibniz University Hannover
摘要:In this article, we present a sequential distributed model predictive control (MPC) scheme for cooperative control of multiagent systems with dynamically decoupled heterogeneous nonlinear agents subject to individual constraints. In the scheme, we explore the idea of using tracking MPC with artificial references to let agents coordinate their cooperation without external guidance. Each agent combines a tracking MPC with artificial references, the latter penalized by a suitable coupling cost. T...
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作者:Sahabandu, Dinuka; Moothedath, Shana; Allen, Joey; Bushnell, Linda; Lee, Wenke; Poovendran, Radha
作者单位:University of Washington; University of Washington Seattle; Iowa State University; University System of Georgia; Georgia Institute of Technology
摘要:Stochastic games model the strategic interactions between two or more players that occur in a sequence of stages. In this article, we focus on computing the average reward Nash equilibrium (ARNE) of a nonzero-sum stochastic game when the transition probabilities of the game and reward structure of the players are unknown. We note that the current state-of-the-art reinforcement learning (RL) algorithms that compute the ARNE of nonzero-sum stochastic games require solving a matrix game correspon...
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作者:Wilhelmsen, Nils Christian A.; Di Meglio, Florent
作者单位:Universite PSL; MINES ParisTech
摘要:We propose an output feedback controller to stabilize thermoacoustic instabilities in a duct with variable cross section, by actuating and sensing the acoustic boundary opposite from the flame. A linear parametric state-space model, taking into account both time-delay effects from the classical n - tau model and low-pass filtering effects, models the flame subsystem. For the acoustics, a distributed model taking into account variations in the cross-sectional area along the duct is developed an...