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作者：Wang, Guoqing; Zhang, Yonggang; Wang, Xiaodong
作者单位：China University of Mining & Technology; China University of Mining & Technology; China University of Mining & Technology; Harbin Engineering University; Columbia University
摘要：We propose a new robust recursive fixed-interval smoother for nonlinear systems under non-Gaussian process and measurement noises, i.e., the nominal Gaussian noise is polluted by large noise from unknown distributions. Taking advantage of correntropy in handling non-Gaussian noise, a robust Rauch-Tung-Striebel smoother is derived according to the maximum-correntropy-criterion-based cost functions with nonlinear functions linearized by their first-order Taylor series expansions, where two weigh...
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作者：Xu, Juanjuan; Wang, Wei; Zhang, Huanshui
作者单位：Shandong University
摘要：In this article, we will study a class of forward and backward stochastic difference equations (discrete-time FBSDEs) with time delay. By establishing a nonhomogeneous relationship between the forward and backward stochastic processes, we give the explicit solution of the discrete-time FBSDEs with time delay in terms of a class of Riccati-like equations. The explicit solution is of great significance in solving the stochastic control problem. To show this point, we study a stochastic leader-fo...
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作者：Zhang, Ying; Su, Youfeng; Wang, Xinghu
作者单位：Fuzhou University; Chinese Academy of Sciences; University of Science & Technology of China, CAS
摘要：In this article, we present a novel distributed adaptive output feedback control for the cooperative output regulation problem of linear multiagent systems. The agent plant is general in the sense that those interesting practical issues such as unknown dynamics, directed network graph, and agents with nonidentical relative degrees are taken into account simultaneously. The obtained controller consists of the reduced-order observer, the internal model, as well as the adaptive control law, all o...
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作者：Pan, Lulu; Shao, Haibin; Mesbahi, Mehran; Xi, Yugeng; Li, Dewei
作者单位：Shanghai Jiao Tong University; University of Washington; University of Washington Seattle
摘要：This article examines the consensus problem on matrix-weighted undirected switching networks. First, we introduce the matrix-weighted integral network for analyzing such networks. Under mild assumptions on the switching pattern of a sequence of networks, conditions under which average consensus can be achieved are then provided. It is shown that for matrix-weighted switching networks, the existence of a positive spanning tree in the associated integral network plays a crucial role in achieving...
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作者：Chrysafi, Katerina; Tsinias, John
作者单位：National Technical University of Athens
摘要：Several important contributions toward sampled-data and hybrid feedback stabilization have appeared in the literature. This article extends recent results by second author concerning sampled-data feedback stabilization for affine in the control of nonlinear systems with a nonzero drift term, under the presence of a generalized control Lyapunov function associated with appropriate Lie algebraic hypotheses concerning the dynamics of the system. The main results of this article constitute a gener...
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作者：Dixit, Rishabh; Bedi, Amrit Singh; Rajawat, Ketan
作者单位：Rutgers University System; Rutgers University New Brunswick; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Kanpur
摘要：We consider the problem of tracking the minimum of a time-varying convex optimization problem over a dynamic graph. Motivated by target tracking and parameter estimation problems in intermittently connected robotic and sensor networks, the goal is to design a distributed algorithm capable of handling nondifferentiable regularization penalties. The proposed proximal online gradient descent algorithm is built to run in a fully decentralized manner and utilizes consensus updates over possibly dis...
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作者：Franci, Barbara; Grammatico, Sergio
作者单位：Delft University of Technology
摘要：We consider the stochastic generalized Nash equilibrium problem (SGNEP) with expected-value cost functions. Inspired by Yi and Pavel (2019), we propose a distributed generalized Nash equilibrium seeking algorithm based on the preconditioned forward-backward operator splitting for SGNEPs, where, at each iteration, the expected value of the pseudogradient is approximated via a number of random samples. Our main contribution is to show almost sure convergence of the proposed algorithm if the pseu...
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作者：Lawrence, Liam S. P.; Simpson-Porco, John W.; Mallada, Enrique
作者单位：University of Toronto; University of Toronto; Johns Hopkins University
摘要：We consider the problem of designing a feedback controller for a multivariable linear time-invariant system, which regulates a system output to the solution of an equality-constrained convex optimization problem despite unknown constant exogenous disturbances; we term this the linear-convex optimal steady-state (OSS) control problem. We introduce the notion of an optimality model, and show that the existence of an optimality model is sufficient to reduce the OSS control problem to a stabilizat...
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作者：Lhachemi, Hugo; Shorten, Robert
作者单位：Universite Paris Saclay; Imperial College London; University College Dublin
摘要：Stability of retarded differential equations is closely related to the existence of Lyapunov-Krasovskii functionals. Even if a number of converse results have been reported regarding the existence of such functionals, there is a lack of constructive methods for their selection. For certain classes of time-delay systems for which such constructive methods are lacking, it was shown that Lyapunov-Krasovskii functionals that are also allowed to depend on the time-derivative of the state-trajectory...
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作者：Ma, Jun; Cheng, Zilong; Zhang, Xiaoxue; Tomizuka, Masayoshi; Lee, Tong Heng
作者单位：National University of Singapore; University of California System; University of California Berkeley; National University of Singapore
摘要：The H-2-guaranteed cost decentralized control problem is investigated in this article. More specifically, on the basis of an appropriate H-2 reformulation that we put in place, the optimal control problem in the presence of parameter uncertainties is then suitably characterized by convex restriction and solved in parameter space. It is shown that a set of stabilizing decentralized controller gains for the uncertain system is parameterized in a convex set through appropriate convex restriction,...
