4期

最新文章

• From Partial and Horizontal Contraction to k-Contraction AI翻译
  作者：Wu, Chengshuai; Dimarogonas, Dimos V.
  摘要：A geometric generalization of contraction theory called k-contraction was recently developed using k-compound matrices. In this article, we focus on the relations between k-contraction and two other generalized contraction frameworks: partial contraction (also known as virtual contraction) and horizontal contraction. We show that in general these three notions of contraction are different. We here provide new sufficient conditions guaranteeing that partial contraction implies horizontal contra...
• Generalized Dixon Resultant for Strong Delay-Independent Stability of Linear Systems With Multiple Delays AI翻译
  作者：Cai, Jiazhi; Gao, Qingbin; Liu, Yifan; Wu, Aiguo
  作者单位：Harbin Institute of Technology
  摘要：The strong delay-independent stability (DIS) of linear time-invariant-retarded multiple time-delay systems (MTDSs) is studied in the entire delay space. We develop a new one-step discriminant approach utilizing the generalized Dixon resultant, which unveils the necessary and sufficient algebraic condition for the upper frequency bound. The lower frequency bound is rigorously ascertained by further inspecting the zero spectrum. Then, we raise seven postulates concerning the system stability sta...
• Asymptotical Controllability of Continuous-Time Probabilistic Logic Control Systems AI翻译
  作者：Li, Zhitao; Guo, Yuqian; Gui, Weihua
  作者单位：Central South University
  摘要：Herein, we investigate the asymptotical controllability of continuous-time probabilistic logic control systems (CT-PLCSs) under piecewise constant and right continuous controls (PCRCCs). The theory of an invariant subset for a CT-PLCS controlled by a PCRCC is developed. Based on this theory, we prove that a state is asymptotically reachable from another state under a PCRCC if and only if it is asymptotically reachable under a simple periodic PCRCC; in other words, the control values are pairwi...
• Sufficient Conditions for Uniform Asymptotic Stability and Input-to-State Stability Using High-Order Control Barrier Functions AI翻译
  作者：Marley, Mathias; Skjetne, Roger; Teel, Andrew R.
  作者单位：Norwegian University of Science & Technology (NTNU); University of California System; University of California Santa Barbara
  摘要：Control barrier functions (CBFs) ensure the safety of controlled dynamical systems by enforcing forward invariance of safe subsets of the state space. First-order CBFs are applicable for systems where the control input appears in the first time derivative of the controlled output. High-order CBFs (HOCBFs) extend the notion of CBFs to systems of any order, following a procedure reminiscent of the recursive design of a control Lyapunov function in backstepping. Asymptotic stability of compact sa...
• Dynamic Regret of Distributed Online Saddle Point Problem AI翻译
  作者：Zhang, Wentao; Shi, Yang; Zhang, Baoyong; Yuan, Deming; Xu, Shengyuan
  作者单位：Nanjing University of Science & Technology; University of Victoria
  摘要：This article is concerned with the distributed online saddle point problem for multiagent networks over time-varying graphs. The objective is to design distributed online algorithms for optimizing the accumulation of the time-varying loss functions, and further to analyze the efficiency of the algorithms by utilizing the so-called dynamic regret as a performance measure. To this end, two kinds of distributed online optimization algorithms are developed by considering full-information feedback ...
• Event-Triggered Reference Governors for Collisions-Free Leader-Following Coordination Under Unreliable Communication Topologies AI翻译
  作者：An, Liwei; Yang, Guang-Hong; Deng, Chao; Wen, Changyun
  作者单位：Northeastern University - China; Northeastern University - China; Nanjing University of Posts & Telecommunications; Nanyang Technological University
  摘要：Reference governors are add-on control schemes, which enforce state constraints on prestabilized systems by modifying, whenever necessary, the reference. This article studies the design schemes of reference governors for collisions-free leader-following coordination (CF-LFC) of nonlinear multiagent systems under unreliable communications. The unreliability is characterized as irregular topology switchings (e.g., due to communication failures, adversarial attacks, or other agents' blockages), w...
• Security Strategy Against Location-Varying Sparse Attack on Distributed State Monitoring AI翻译
  作者：Lei, Xuqiang; Wen, Guanghui; Zheng, Wei Xing; Fu, Junjie
  作者单位：Southeast University - China; Western Sydney University
  摘要：Secure state monitoring is mainly concerned with the problem of estimating the state of cyber-physical systems from a set of compromised attacked measurements. Compared with the case of fixed location attacks, a smart attacker who appropriately changes the attack target location can effectively resist intelligent defense detection and enhance the damage effect. To address this erratic attack, this article develops a distributed secure state monitoring protocol for a class of homogeneous cyber-...
• Optimal Tracking of Networked Control Systems Over the Fading Channel With Packet Loss AI翻译
  作者：Jiang, Xiaowei; Yan, Huaicheng; Li, Bo; Zheng, Shiqi; Huang, Tingwen; Shi, Peng
  作者单位：China University of Geosciences; East China University of Science & Technology; Hubei University of Technology; Anhui University of Finance & Economics; Qatar Foundation (QF); Texas A&M University Qatar; University of Adelaide; Obuda University
  摘要：For networked systems, the communication processes between sensors, actuators, and controllers pose many challenges such as instability and performance degradation that may result from bandwidth limitations, signal-to-noise ratio constraints, and frequent occurrences of packet loss. The constraints of these elements can negatively affect the performance of control systems. In this study, we used a fading channel model to analyze the fundamental tracking performance of a networked control syste...
• Generalized Nash Equilibrium Seeking for Noncooperative Games With Heterogeneous Individual Dynamics AI翻译
  作者：Liu, Pin; Xiao, Feng; Wei, Bo; Yu, Mei
  作者单位：North China Electric Power University; North China Electric Power University
  摘要：This article investigates the constrained noncooperative game problems where players with individual dynamics are subject to local strategy set constraints and global nonlinear inequality constraints. The cost function of each player depends on the strategies of all players and is only locally accessible to the player. With only the local information, players estimate all others' strategies and deal with coupled constraints by communicating with their neighbors in a graph. To avoid the usage o...
• Practical State Estimation With Event-Triggered Sliding Mode Observer AI翻译
  作者：Mondal, Saikat; Behera, Abhisek K.
  作者单位：Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Roorkee
  摘要：This article deals with the practical state estimation for an uncertain dynamical system under feedback constraints. We propose an event-triggered sliding mode observer to estimate the states in the practical sense, i.e., arbitrary steady-state bound can be achieved for the estimation error irrespective of the disturbance signal. A new sliding mode observer is proposed with the discontinuous output error injection vector of the same order as that of the disturbance vector; therefore the observ...