-
作者:Fei, Zhongyang; Chen, Weizhong; Yang, Hao; Sun, Xi-Ming
作者单位:Dalian University of Technology; Dalian University of Technology; Xi'an Polytechnic University; Harbin Institute of Technology; Nanjing University of Aeronautics & Astronautics
摘要:This article investigates the dynamic output feedback control for switched positive systems with mode-dependent persistent dwell time (MPDT) switching and unmeasurable disturbances. Unlike the previous results, in this article, we propose a radius analysis-based control method. By constructing the time-varying state zonotope and guaranteeing its dual convergence, dynamic output feedback controllers are designed, and then the stability of the closed-loop system and convergent state boundaries a...
-
作者:Li, Huaqing; Ran, Liang; Zheng, Lifeng; Li, Zhe; Hu, Jinhui; Li, Jun; Huang, Tingwen
作者单位:Southwest University - China; Central South University; City University of Hong Kong; Shenzhen University of Advanced Technology
摘要:This article considers a class of noncooperative games in which the feasible decision sets of all players are coupled together by a coupled inequality constraint. Adopting the variational inequality formulation of the game, we first introduce a new local edge-based equilibrium condition with full information. Considering challenges when communication delays occur, we then devise an asynchronous distributed algorithm to seek a generalized Nash equilibrium. This asynchronous scheme arbitrarily a...
-
作者:Mao, Qi; Xu, Yong; Chen, Jianqi; Chen, Jie; Georgiou, Tryphon T.
作者单位:Nanjing Normal University; City University of Hong Kong; Guangdong University of Technology; Nanjing University; City University of Hong Kong; University of California System; University of California Irvine
摘要:Proportional-integral-derivative (PID) control has been the workhorse of control technology for about a century. Yet to this day, designing and tuning PID controllers relies mostly on either tabulated rules (Ziegler-Nichols) or on classical graphical techniques (Bode). Our goal in this article is to take a fresh look on PID control in the context of optimizing stability margins for low-order (first- and second-order) linear time-invariant systems. Specifically, we seek to derive explicit expre...
-
作者:Singh, Nitesh Kumar; Necoara, Ion
作者单位:National University of Science & Technology POLITEHNICA Bucharest
摘要:In this work, we consider convex optimization problems with smooth objective function and nonsmooth functional constraints. We propose a new stochastic gradient algorithm, called the stochastic halfspace approximation method (SHAM), to solve this problem, where at each iteration we first take a gradient step for the objective function and then we perform a projection step onto one halfspace approximation of a randomly chosen constraint. We propose various strategies to create this stochastic h...
-
作者:Wang, Jian; Zimenko, Konstantin; Polyakov, Andrey; Efimov, Denis
作者单位:Hangzhou Dianzi University; ITMO University; Universite de Lille; Centre National de la Recherche Scientifique (CNRS); Inria; Centrale Lille; CNRS - Institute for Information Sciences & Technologies (INS2I)
摘要:A linear time-varying state observer is presented for a chain of integrators having bounded disturbances in the last equation. It is demonstrated that in the noise-free setting, for the continuous-time realization, the estimation error converges to zero with a hyperexponential rate (faster than any exponential) uniformly in the disturbance. An implicit discretization scheme of the observer is proposed, which in the discrete time preserves all the main properties of the continuous-time counterp...
-
作者:Liu, Yuxuan; Ye, Maojiao; Ding, Lei; Han, Qing-Long
作者单位:Nanjing University of Science & Technology; Nanjing University of Posts & Telecommunications; Nanjing University of Posts & Telecommunications; Swinburne University of Technology
摘要:The article studies a distributed online optimization problem over partially free-in and free-out networks, in which a set of unfixed agents cooperate to minimize the sum of a group of time-varying functions over a time horizon. To be specific, the agents are divided into static agents and dynamic agents. The static agents are those who remain in the network during the whole time horizon, while the dynamic agents are allowed to join and leave the network freely. Based on the dual averaging tec...
-
作者:Gao, Xinzhou; Shu, Zhan; Liu, Jason J. R.
作者单位:University of Alberta; University of Macau
摘要:In this article, we address the distributed source seeking (DSS) problem using model predictive control (MPC). In our approach, the signal field is modeled as a weighted combination of convex functions, and we employ a distributed set-membership estimation to gain a global exploration of the field. This estimated field is then treated as the output of the resulting connected system, enabling the DSS problem to be formulated as an output tracking problem that can be solved using a distributed a...
-
作者:Grontas, Panagiotis D.; Tsiamis, Anastasios; Lygeros, John
作者单位:Swiss Federal Institutes of Technology Domain; ETH Zurich
摘要:We consider finite Markov decision processes (MDPs) with convex constraints and known dynamics. In principle, this problem is amenable to off-the-shelf convex optimization solvers, but typically this approach suffers from poor scalability. In this work, we develop a first-order algorithm, based on the Douglas-Rachford splitting, that allows us to decompose the dynamics and constraints. Thanks to this decoupling, we can incorporate a wide variety of convex constraints. Our scheme consists of si...
-
作者:Luan, Xiaoli; Qing, Nengneng; Liu, Fei
作者单位:Jiangnan University
摘要:The ring-patterned control is studied for a class of multiagent systems (MASs) under directed ring interactions with time-varying weights, further accommodating increasing scales and achieving hyperexponential consensus with the dynamic weighted average steady state. For both MAS of scalar-agent and multivariable-agent, ring-patterned control is proposed by encoding the corresponding matrices into respective time-varying polynomials of the time-invariant ring-patterned base matrix. With these ...
-
作者:Abudia, Moad; Channagiri, Tejasvi; Rosenfeld, Joel A.; Kamalapurkar, Rushikesh
作者单位:Texas Tech University System; Oklahoma State University System; Texas Tech University; Oklahoma State University - Stillwater; Harvard University; Harvard T.H. Chan School of Public Health; State University System of Florida; University of South Florida; State University System of Florida; University of Florida
摘要:This manuscript presents an algorithm for obtaining an approximation of a nonlinear high order control affine dynamical system. Controlled trajectories of the system are leveraged as the central unit of information via embedding them in vector-valued reproducing kernel Hilbert space (vvRKHS). The trajectories are embedded as the so-called higher order control occupation kernels, which represent an operator on the vvRKHS corresponding to iterated integration after multiplication by a given cont...