Letteratura scientifica selezionata sul tema "Ensemble controllability"

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Articoli di riviste sul tema "Ensemble controllability":

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Kuritz, Karsten, Shen Zeng e Frank Allgower. "Ensemble Controllability of Cellular Oscillators". IEEE Control Systems Letters 3, n. 2 (aprile 2019): 296–301. http://dx.doi.org/10.1109/lcsys.2018.2870967.

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Agrachev, Andrei, Yuliy Baryshnikov e Andrey Sarychev. "Ensemble controllability by Lie algebraic methods". ESAIM: Control, Optimisation and Calculus of Variations 22, n. 4 (5 agosto 2016): 921–38. http://dx.doi.org/10.1051/cocv/2016029.

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Li, Jr-Shin, Wei Zhang e Lin Tie. "On Separating Points for Ensemble Controllability". SIAM Journal on Control and Optimization 58, n. 5 (gennaio 2020): 2740–64. http://dx.doi.org/10.1137/19m1278648.

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Danhane, Baparou, e Jérôme Lohéac. "Ensemble controllability of parabolic type equations". Systems & Control Letters 183 (gennaio 2024): 105683. http://dx.doi.org/10.1016/j.sysconle.2023.105683.

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Gharesifard, Bahman, e Xudong Chen. "Structural Averaged Controllability of Linear Ensemble Systems". IEEE Control Systems Letters 6 (2022): 518–23. http://dx.doi.org/10.1109/lcsys.2021.3082762.

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Beauchard, Karine, Jean-Michel Coron e Pierre Rouchon. "Controllability Issues for Continuous-Spectrum Systems and Ensemble Controllability of Bloch Equations". Communications in Mathematical Physics 296, n. 2 (21 febbraio 2010): 525–57. http://dx.doi.org/10.1007/s00220-010-1008-9.

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Chen, Xudong. "Structure theory for ensemble controllability, observability, and duality". Mathematics of Control, Signals, and Systems 31, n. 2 (giugno 2019): 1–40. http://dx.doi.org/10.1007/s00498-019-0237-5.

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Zeng, Shen, e Frank Allgöwer. "A moment-based approach to ensemble controllability of linear systems". Systems & Control Letters 98 (dicembre 2016): 49–56. http://dx.doi.org/10.1016/j.sysconle.2016.09.020.

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Chen, Xudong. "Controllability of continuum ensemble of formation systems over directed graphs". Automatica 108 (ottobre 2019): 108497. http://dx.doi.org/10.1016/j.automatica.2019.108497.

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Chen, Xudong. "Controllability Issues of Linear Ensemble Systems over Multidimensional Parameterization Spaces". SIAM Journal on Control and Optimization 61, n. 4 (8 agosto 2023): 2425–47. http://dx.doi.org/10.1137/21m1418691.

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Tesi sul tema "Ensemble controllability":

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Owrutsky, Philip. "Periodic Pulsed Controllability with Applications to NMR". Thesis, Harvard University, 2012. http://dissertations.umi.com/gsas.harvard:10655.

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Abstract (sommario):
In this thesis we study a class of problems that require simultaneously controlling a large number of dynamical systems, with varying system dynamics, using the same control signal. We call such problems ensemble control problems, as the goal is to simultaneously steer the entire ensemble of systems. These problems are motivated by many physical systems and we will be particularly interested in the manipulation of nuclear spins in Nuclear Magnetic Resonance (NMR) experiments. System dispersion arise from imprecise magnets for controls, or from disruptive intermolecular interactions. In all cases, the aim is to attenuate the aspects fo the dynamics that correspond to noise or errors, while perserving the aspects that contain the quantities of interest. In liquid NMR experiments this could correspond to preserving Larmor frequency in the presence of inhomogeneities of the strength of the applied radio frequency (RF) field. In solid state NMR, reducing or eliminating orientation dependent magnetic fields is of key concern, so that a precise spectrum can be observed. We approach the problem from the standpoint of mathematical control theory in which the challenge is to simultaneously steer a continuum of systems between points of interest with the same control signal. At the heart of this problem is finding ways for the nonlinearity of the system to be used to our advantage, so that while all members of the ensemble will be driven with the same controls, their final orientations can be orchestrated to arbitrary precision. This thesis develops the methods necessary for two such ensemble control problems arising in NMR, RF (control) amplitude inhomogeneity and systems with periodic drifts that exhibit dispersions in their amplitude and phase. In both cases, robust controls will rely on the non-commutativity of the system's dynamics enabling the generation of alternative and more robust control elements.
Engineering and Applied Sciences
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Danhane, Baparou. "Contrôlabilité en sortie". Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0246.

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Abstract (sommario):
Les travaux de cette thèse portent sur la contrôlabilité de la sortie des systèmes linéaires. En général, le concept de contrôlabilité lorsqu'il est évoqué, fait référence à l'état du système. Plus précisément la question principale est de savoir s'il est possible ou non d'envoyer (en temps fini) le système d'un état initial arbitrairement choisi vers un état final prescrit. Cependant, dans certaines situations, on peut être intéressé par le contrôle d'une variable autre que l'état (par exemple une combinaison entre l'état du système et l'entrée du système). C'est le cas par exemple si l'on veut contrôler la différence de position entre deux voitures ou encore si on a des équations différentielles couplées et qu'on veut contrôler certaines variables du système.Le concept de contrôlabilité de la sortie à été introduit dans les années 60 par J. Bertram et P. Sarachick pour tenir compte de ce genre de besoin. Dans ce cadre, au lieu de contrôler l'état, l'idée est de contrôler une variable appelée sortie qui est une combinaison entre l'état et l'entrée du système. Malheureusement ce concept n'a pas connu le même engouement que celui de l'état. De ce fait, il y'a très peu de résultats dans la littérature à ce sujet et des critères de contrôlabilité bien connus dans le cadre de l'état pour les systèmes linéaires n'ont pas connu d'extension au cadre de la sortie.L'objectif premier de cette thèse sera de compléter et d'affiner les résultats existant dans la littérature pour les systèmes linéaires. Nous établirons des conditions nécessaires et suffisantes de contrôlabilité de la sortie en temps fini et lorsque le système est contrôlable en sortie, nous montrerons comment construire les entrées adéquates pour atteindre les valeurs de sortie désirées en temps fini. La deuxième partie de cette thèse est consacrée à la contrôlabilité de la sortie de systèmes linéaires dont la dynamique dépend d'un paramètre. Ce genre de systèmes apparait fréquemment dans la vie courante. Par exemple dans le cadre des voitures mentionnées un peu plus haut, leur dynamique dépend de leur masse qui elles varient en fonction du nombre d'individus transportés. On peut penser, de façon générale, à tout système physique dont la dynamique dépend d'un paramètre qui lui est inhérent et dont on ne connaît pas avec précision. L'objectif de cette dernière partie sera d'établir les conditions pour lesquelles on peut "atteindre" n'importe quelle trajectoire de sortie (trajectoire ici fait allusion a une fonction du paramètre) en temps fini avec des entrées indépendantes du paramètre. Des conditions nécessaires et/ou suffisantes seront établies et une application avec des applications à la contrôlabilité en moyenne
This thesis focuses on the output controllability of linear systems. In general, the concept of controllability when mentioned, refers to the state of the system. More precisely, the main question is whether or not it is possible to send (in finite time) the system from an arbitrarily chosen initial state to a prescribed final state. However, in some situations, one may be interested in controlling a variable other than the state (e.g. a combination of the system state and the system input). This is the case, for example, if one wants to control the difference in position between two cars, or if one has coupled differential equations and aims to control certain variables of the system.The concept of output controllability was introduced in the 60's by J. Bertram and P. Sarachick to address this kind of problem. In this framework, instead of controlling the state, the idea is to control a variable called output which is a combination of the state and the input of the system. Unfortunately, this concept did not get the same infatuation as that of the state. Consequently, there are very few results in the literature on this subject and well-known controllability criteria in the state framework for linear systems have not been extended to the output framework.The first goal of this thesis will be to complete and refine the existing results in the literature for linear systems. We will establish necessary and sufficient conditions for finite-time controllability of the output and when the system is output controllable, we will show how to construct the appropriate inputs to achieve the desired output values in finite time.The second part of this thesis is devoted to the output controllability of linear systems whose dynamics depend on a parameter. Such systems frequently appear in practical life.For example, in the case of the cars mentioned above, their dynamics depend on their mass, which varies according to the number of people carried. We can think, in a general way, of any physical system whose dynamics depend on a parameter which is inherent to it and which is not precisely known.The purpose of this last part will be to establish conditions for which any output trajectory (trajectory here refers to a function of the parameter) can be "reached" in finite time with parameter independent inputs. Necessary and/or sufficient conditions will be established with applications to averaged controllability

Atti di convegni sul tema "Ensemble controllability":

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Li, Jr-Shin, e Navin Khaneja. "Ensemble Controllability of the Bloch Equations". In Proceedings of the 45th IEEE Conference on Decision and Control. IEEE, 2006. http://dx.doi.org/10.1109/cdc.2006.377454.

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Qi, Ji, e Shin Li. "Controllability characterization of linear ensemble systems". In 2014 IEEE 53rd Annual Conference on Decision and Control (CDC). IEEE, 2014. http://dx.doi.org/10.1109/cdc.2014.7040188.

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Ji Qi e Jr-Shin Li. "Ensemble controllability of time-invariant linear systems". In 2013 IEEE 52nd Annual Conference on Decision and Control (CDC). IEEE, 2013. http://dx.doi.org/10.1109/cdc.2013.6760292.

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Zhang, Wei, Lin Tie e Jr-Shin Li. "Controllability of Sobolev-Type Linear Ensemble Systems". In 2021 60th IEEE Conference on Decision and Control (CDC). IEEE, 2021. http://dx.doi.org/10.1109/cdc45484.2021.9683659.

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Miao, Wei, Gong Cheng e Jr-Shin Li. "On Numerical Examination of Uniform Ensemble Controllability for Linear Ensemble Systems". In 2021 American Control Conference (ACC). IEEE, 2021. http://dx.doi.org/10.23919/acc50511.2021.9482706.

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Chen, Xudong. "Structure theory for ensemble controllability, observability, and duality". In 2020 Information Theory and Applications Workshop (ITA). IEEE, 2020. http://dx.doi.org/10.1109/ita50056.2020.9244972.

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Tie, Lin, e Jr-Shin Li. "On weak ensemble controllability with applications to a chain of integrators". In 2016 12th World Congress on Intelligent Control and Automation (WCICA). IEEE, 2016. http://dx.doi.org/10.1109/wcica.2016.7578826.

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Tie, Lin, Wei Zhang e Jr-Shin Li. "Controllability of linear ensemble systems with constant drift and linear parameter variation". In 2017 IEEE Conference on Control Technology and Applications (CCTA). IEEE, 2017. http://dx.doi.org/10.1109/ccta.2017.8062610.

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Tie, Lin, e Jr-Shin Li. "On controllability of discrete-time linear ensemble systems with linear parameter variation". In 2016 American Control Conference (ACC). IEEE, 2016. http://dx.doi.org/10.1109/acc.2016.7526669.

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Chambrion, Thomas. "A sufficient condition for partial ensemble controllability of bilinear schrödinger equations with bounded coupling terms". In 2013 IEEE 52nd Annual Conference on Decision and Control (CDC). IEEE, 2013. http://dx.doi.org/10.1109/cdc.2013.6760454.

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