IEEE Transactions on Automatic Control

最新文章

• Consensus on Matrix-Weighted Switching Networks AI翻译
  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...
• A General Class of Control Lyapunov Functions and Sampled-Data Stabilization AI翻译
  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...
• Online Learning Over Dynamic Graphs via Distributed Proximal Gradient Algorithm AI翻译
  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...
• A Distributed Forward-Backward Algorithm for Stochastic Generalized Nash Equilibrium Seeking AI翻译
  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...
• Linear-Convex Optimal Steady-State Control AI翻译
  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...
• On the Derivation of Stability Properties for Time-Delay Systems Without Constraint on the Time-Derivative of the Initial Condition AI翻译
  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...
• Optimal Decentralized Control for Uncertain Systems by Symmetric Gauss-Seidel Semi-Proximal ALM AI翻译
  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,...
• Randomized Block Proximal Methods for Distributed Stochastic Big-Data Optimization AI翻译
  作者：Farina, Francesco; Notarstefano, Giuseppe
  作者单位：GlaxoSmithKline; Glaxosmithkline United Kingdom; University of Bologna
  摘要：In this article, we introduce a class of novel distributed algorithms for solving stochastic big-data convex optimization problems over directed graphs. In the addressed set-up, the dimension of the decision variable can be extremely high and the objective function can be nonsmooth. The general algorithm consists of two main steps: a consensus step and an update on a single block of the optimization variable, which is then broadcast to neighbors. Three special instances of the proposed method,...
• Resilient Actuator Fault Estimation for Discrete-Time Complex Networks: A Distributed Approach AI翻译
  作者：Liu, Yang; Wang, Zidong; Zhou, Donghua
  作者单位：Shandong University of Science & Technology; Brunel University; Tsinghua University
  摘要：This article is concerned with the resilient fault diagnosis (FD) problem for a class of complex networks subject to possible loss of the actuator effectiveness and random variation of the filter gain. An unknown diagonal matrix is employed to characterize the multiplicative loss of actuator effectiveness for each node. The proposed filter utilizes the information from only the local node and the neighboring nodes. Since there is no need to have a center node receiving global information from ...
• Delay Consensus Margin of First-Order Multiagent Systems With Undirected Graphs and PD Protocols AI翻译
  作者：Ma, Dan; Chen, Jianqi; Lu, Renquan; Chen, Jie; Chai, Tianyou
  作者单位：Northeastern University - China; Northeastern University - China; City University of Hong Kong; Guangdong University of Technology; Guangdong University of Technology
  摘要：In this article, we study robust consensus problems for continuous-time first-order multiagent systems (MASs) with time delays. We assume that the agents input is subject to an uncertain constant delay, which may arise due to interagent communication or additionally, also by self-delay in the agent dynamics. We consider dynamic feedback control protocol in the form of proportional and derivative (PD) control, and seek to determine the delay consensus margin (DCM) achievable by PD feedback prot...