10期

最新文章

• Improved Independent and Uniform Multivariable Gain and Phase Margins in H∞/LTR Control AI翻译
  作者：Ferreira, Luis H. C.; Guaracy, Fernando H. D.
  作者单位：Universidade Federal de Itajuba
  摘要：In this article, we presented guaranteed independent and uniformmultivariable stabilitymargins for the H-infinity/LTR control, both in continuous and discrete time. In previous works, it was shown that the H-infinity/LTR control generalizes the linear quadratic Gaussian (LQG)/LTR setup, allowing the designer to better impose bounds on the complementary sensitivity frequency peak in the loop-shaping procedure. In this article, we extend this result by showing that H-infinity/LTR control is able...
• Existence of Team-Optimal Strategies in Teams With Countable Observation Spaces AI翻译
  作者：Gupta, Abhishek
  作者单位：University System of Ohio; Ohio State University
  摘要：Team problems, in which multiple agents act to minimize a common expected cost function, are generally intractable. The problem of establishing the existence of team-optimal strategies has received significant attention in the past decade. In this article, we present a proof of the existence of team-optimal strategies in a class of teams in which observations are realized in a countable set and are shared among the agents and the action sets are noncompact. We derive sufficient conditions unde...
• State Estimation of Kermack-McKendrick PDE Model With Latent Period and Observation Delay AI翻译
  作者：Sano, Hideki; Wakaiki, Masashi
  作者单位：Kobe University
  摘要：In this article, we study the problem of estimating the state of the linearized Kermack-McKendrick partial differential equation (PDE) model in real time. Especially, we assume that the model contains two kinds of delays. One of them is contained in the nonlocal boundary condition, which expresses the latent period of infection. The other is an observation delay, which corresponds to the time needed for counting the number of infected people at an infection elapsed time. The element of time la...
• Structural Robustness to Noise in Consensus Networks: Impact of Degrees and Distances, Fundamental Limits, and Extremal Graphs AI翻译
  作者：Yazcoglu, Yasin; Abbas, Waseem; Shabbir, Mudassir
  作者单位：University of Minnesota System; University of Minnesota Twin Cities; Vanderbilt University
  摘要：We investigate how the graph topology influences the robustness to noise in undirected linear consensus networks. We measure the structural robustness by using the smallest possible value of steady-state population variance of states under the noisy consensus dynamics with edge weights from the unit interval. We derive tight upper and lower bounds on the structural robustness of networks based on the average distance between nodes and the average node degree. Using the proposed bounds, we char...
• Distributed Bandit Online Convex Optimization With Time-Varying Coupled Inequality Constraints AI翻译
  作者：Yi, Xinlei; Li, Xiuxian; Yang, Tao; Xie, Lihua; Chai, Tianyou; Johansson, Karl Henrik
  作者单位：Royal Institute of Technology; Nanyang Technological University; Northeastern University - China
  摘要：Distributed bandit online convex optimization with time-varying coupled inequality constraints is considered, motivated by a repeated game between a group of learners and an adversary. The learners attempt tominimize a sequence of global loss functions and at the same time satisfy a sequence of coupled constraint functions, where the constraints are coupled across the distributed learners at each round. The global loss and the coupled constraint functions are the sum of local convex loss and c...
• Adaptive Fixed-Lag Smoothing Algorithms Based on the Variational Bayesian Method AI翻译
  作者：Xu, Hong; Duan, Keqing; Yuan, Huadong; Xie, Wenchong; Wang, Yongliang
  作者单位：Wuhan Naval University of Engineering; Sun Yat Sen University; Air Force Early Warning Academy
  摘要：In this article, we address the adaptive fixed-lag smoothing (FLS) problem in the presence of unknown and slowly time-varying measurement noise covariance matrix (MNCM). Based on the variational Bayesian (VB) method, we use the VB inference to jointly estimate the system state and the unknown MNCM. According to different implementation methods, we propose two adaptive FLS algorithms: One is based on the augmented state-space models and another one is based on a sliding Rauch-Tung-Striebel smoo...
• H∞ Functional Filtering for Linear Systems With Unknown Inputs AI翻译
  作者：Darouach, Mohamed; Fernando, Tyrone
  作者单位：Universite de Lorraine; University of Western Australia
  摘要：A new method for H-infinity functional filtering for systems with unknown inputs is presented. First, a functional filtering technique is presented, then we show that the dynamic of estimation error can be modeled in the descriptor system form, this formulation makes it possible to describe the dynamic estimation error free of the derivative of the disturbances. The filter parameters are obtained from the bounded real lemma of descriptor systems. The developed approach unifies the design of fu...
• Characterizing PID Controllers for Linear Time-Delay Systems: A Parameter-Space Approach AI翻译
  作者：Li, Xu-Guang; Niculescu, Silviu-Iulian; Chen, Jun-Xiu; Chai, Tianyou
  作者单位：Northeastern University - China; Northeastern University - China; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS)
  摘要：We focus on the proportional-integral-derivative (PID) controller design for linear time-delay systems. All the controller gains (k(P), k(I,) and k(D)) and the delay (t) are treated as free parameters and no particular constraints are imposed on the controlled plants. Such a problem (involving totally four free parameters) is of theoretical as well as practical importance, but, to the best of the authors' knowledge, it has not been fully explored. First, we will develop an algebraic algorithm ...
• Invariance Properties of Controlled Stochastic Nonlinear Systems Under Information Constraints AI翻译
  作者：Kawan, Christoph; Yuksel, Serdar
  作者单位：University of Munich; Queens University - Canada
  摘要：Given a stochastic nonlinear system controlled over a possibly noisy communication channel, the article studies the largest class of channels for which there exist coding and control policies so that the closed-loop system is stochastically stable. The stability criterion considered is asymptotic mean stationarity (AMS). In this article, we develop a general method based on ergodic theory and probability to derive fundamental bounds on information transmission requirements leading to stabiliza...
• Zero-Determinant Strategies in Repeated Multiplayer Social Dilemmas With Discounted Payoffs AI翻译
  作者：Govaert, Alain; Cao, Ming
  作者单位：University of Groningen
  摘要：In two-player repeated games, zero-determinant (ZD) strategies enable a player to unilaterally enforce a linear payoff relation between her own and her opponent's payoff irrespective of the opponent's strategy. This manipulative nature of the ZD strategies attracted significant attention from researchers due to their close connection to controlling distributively the outcome of evolutionary games in large populations. In this article, necessary and sufficient conditions are derived for a payof...