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作者：Li, Jueyou; Li, Chaojie; Fan, Jing; Huang, Tingwen
作者单位：Chongqing Normal University; North China Electric Power University; Central South University
摘要：This article examines an online distributed optimization problem over an unbalanced digraph, in which a group of nodes in the network tries to collectively search for a minimizer of a time-varying global cost function while data are distributed among computing nodes. As the problem size becomes large, it will inevitably suffer from the communication bottleneck since each node that exchanges messages potentially transmits large amounts of information to its neighbors. To handle the issue, we de...
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作者：Mapurunga, Eduardo; Gevers, Michel; Bazanella, Alexandre S.
作者单位：Universidade Federal do Rio Grande do Sul; Universite Catholique Louvain
摘要：The article (Bazanella et al., 2019) presented the first results on generic identifiability of dynamic networks with partial excitation and partial measurements. All previous papers assumed that either all nodes are excited or all nodes are measured. One key contribution of that paper was to establish a set of necessary conditions on the excitation and measurement pattern (EMP) that guarantee generic identifiability: all sources must be excited and all sinks measured, and all other nodes must ...
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作者：Cheddour, Ayoub; Elazzouzi, Abdelhai; Ouzahra, Mohamed
作者单位：Sidi Mohamed Ben Abdellah University of Fez; Sidi Mohamed Ben Abdellah University of Fez
摘要：This work is concerned with the feedback stabilization of a class of semilinear system with distributed delay. We consider an observation condition in terms of the semigroup solution of the linear part of the considered system and parameterized by a positive constant. Some sufficient conditions are given with respect to this parameter and the bounded feedback control to guarantee the feedback stabilization of the semilinear system with distributed delay. Moreover, when this parameter is greate...
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作者：Ferrara, Antonella; Incremona, Gian Paolo; Vecchio, Claudio
作者单位：University of Pavia; Polytechnic University of Milan
摘要：The problem of stabilizing a class of nonholonomic systems in a chained form affected by both matched and unmatched uncertainties is addressed in this article. The proposed design methodology is based on a discontinuous transformation of the perturbed nonholonomic system to which an adaptive multiple-surface sliding mode technique is applied. The generation of a sliding mode allows to eliminate the effect of matched uncertainties, while a suitable function approximation technique enables to de...
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作者：Chekan, Jafar Abbaszadeh; Langbort, Cedric
作者单位：University of Illinois System; University of Illinois Urbana-Champaign; University of Illinois System; University of Illinois Urbana-Champaign
摘要：Overactuated systems often make it possible to achieve specific performances by switching between different subsets of actuators. However, when the system parameters are unknown, transferring authority to different subsets of actuators is challenging due to stability and performance efficiency concerns. This article presents an efficient algorithm to tackle the so-called learn and control while switching between different actuating modes problem in the linear quadratic setting. Our proposed st...
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作者：Lu, Xiujuan; Chen, Ying; Zhu, Bohao; Shen, Jun; Du, Baozhu; Chen, Yonghua; Lam, James
作者单位：University of Hong Kong; Nanjing University of Aeronautics & Astronautics; Hainan University
摘要：This article presents a new version of the Kalman-Yakubovich-Popov lemma for linear systems with their states constrained in proper cones. Based on this lemma, two important applications are introduced. One is the stabilization controller design to satisfy the spectral radius performance while preserving cone invariance. The other is to obtain an H-infinity state-feedback controller such that both H-infinity performance and cone invariance are guaranteed. Moreover, to address these two problem...
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作者：Rathnayake, Bhathiya; Diagne, Mamadou
作者单位：University of California System; University of California San Diego; University of California System; University of California San Diego
摘要：This article introduces the first observer-based periodic event-triggered control (PETC) and self-triggered control (STC) for boundary control of a class of parabolic partial differential equations (PDEs) using PDE backstepping control. We introduce techniques to convert a certain class of continuous-time event-triggered control into PETC and STC, eliminating the need for continuous evaluation of the triggering function. For the PETC, the triggering function requires only periodic evaluations ...
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作者：Koehler, Andreas; Marijan, Pascal; Zhang, Ping
摘要：This article proposes a new approach for the enforcement of current-state opacity in signal interpreted Petri nets (SIPN). In order to enforce current-state opacity in SIPNs, the properties of iterative firing and simultaneous firing of transitions are considered. To prevent the intruder from inferring the current marking, signals associated with the secret marking are compared to signals associated with alternative markings. This allows to determine which signals need to be encrypted to confu...
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作者：Wang, Guangchen; Wang, Wencan
作者单位：Shandong University; Wuhan Textile University
摘要：In this article, we consider a linear-quadratic optimal control problem of mean-field stochastic differential equation with jump diffusion, which is also called as an mean-field linear-quadratic problem with jump diffusion (MF-LQJ) problem. Here, cost functional is allowed to be indefinite. We use an equivalent cost functional method to deal with the MF-LQJ problem with indefinite weighting matrices. Some equivalent cost functionals enable us to establish a bridge between indefinite and positi...
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作者：Chen, Guoyuan
作者单位：Zhejiang University of Finance & Economics
摘要：For an infinite-horizon control problem, the optimal control can be represented by the stable manifold of the characteristic Hamiltonian system of Hamilton-Jacobi-Bellman (HJB) equation in a semiglobal domain. In this article, we first theoretically prove that if an approximation is sufficiently close to the exact stable manifold of the HJB equation in a certain sense, then the control derived from this approximation stabilizes the system and is nearly optimal. Then, based on the theoretical r...
