2期

最新文章

• Differentially Private Distributed Optimization via State and Direction Perturbation in Multiagent Systems AI翻译
  作者：Ding, Tie; Zhu, Shanying; He, Jianping; Chen, Cailian; Guan, Xinping
  作者单位：Shanghai Jiao Tong University
  摘要：This article studies the problem of distributed optimization in multiagent systems where each agent seeks to minimize the sum of all agents' objective functions using only local information. Under the requirement of security, each agent needs to keep its objective function private from other agents and potential eavesdroppers. We first prove the impossibility of guaranteeing convergence and differential privacy simultaneously by perturbing states in exact distributed optimization algorithms. M...
• Fixed-Time Stabilization of Linear Delay Systems by Smooth Periodic Delayed Feedback AI翻译
  作者：Zhou, Bin; Michiels, Wim; Chen, Jie
  作者单位：Harbin Institute of Technology; KU Leuven; City University of Hong Kong
  摘要：This article studies fixed-time stabilization (FxTS) of a general controllable linear system with an input delay tau. It is shown that such a problem is not solvable if the prescribed convergence time T-tau is smaller than 2(tau). For T-tau >= 3 tau, a solution based on linear periodic delayed feedback (PDF) without any distributed delay is established. For T-tau > 2 tau, a solution based on linear predictor-based PDF containing a distributed delay is proposed. For both cases, the gains of the...
• Robust Coordinated Hybrid Source Seeking With Obstacle Avoidance in Multivehicle Autonomous Systems AI翻译
  作者：Poveda, Jorge, I; Benosman, Mouhacine; Teel, Andrew R.; Sanfelice, Ricardo G.
  作者单位：University of Colorado System; University of Colorado Boulder; University of California System; University of California Santa Barbara; University of California System; University of California Santa Cruz
  摘要：In multivehicle autonomous systems that operate under unknown or adversarial environments, it is a challenging task to simultaneously achieve source seeking and obstacle avoidance. Indeed, even for single-vehicle systems, smooth time-invariant feedback controllers based on navigation or barrier functions have been shown to be highly susceptible to arbitrarily small jamming signals that can induce instability in the closed-loop system, or that are able to stabilize spurious equilibria in the op...
• Output Feedback Synthesis of Multiagent Systems With Jointly Connected Switching Networks: A Separation Principle Approach AI翻译
  作者：Su, Youfeng; Lee, Ti-Chung
  作者单位：Fuzhou University; National Sun Yat Sen University
  摘要：The article presents distributed output feedback synthesis for both leaderless consensus and leader-follower consensus of linear multiagent systems subject to jointly connected switching networks. Luenberger type distributed observers are proposed based on the neighborhood output estimation error, and distributed output feedback controllers are developed according to the certainty equivalence principle. To show uniform global exponential stability of the switched closed-loop system, a separati...
• Anti-Unwinding Sliding Mode Attitude Maneuver Control for Rigid Spacecraft AI翻译
  作者：Dong, Rui-Qi; Wu, Ai-Guo; Zhang, Ying
  作者单位：Harbin Institute of Technology
  摘要：In this article, anti-unwinding attitude maneuver control for rigid spacecraft is considered. First, in order to avoid the unwinding phenomenon when the system states are restricted to the switching surface, a novel switching function is designed by a hyperbolic sine function such that the switching surface contains the two equilibriums. Then, a sliding mode attitude maneuver controller is developed based on the proposed switching function to ensure the robustness of the closed-loop system to ...
• Stabilization in Distribution by Delay Feedback Control for Hybrid Stochastic Differential Equations AI翻译
  作者：You, Surong; Hu, Liangjian; Lu, Jianqiu; Mao, Xuerong
  作者单位：Donghua University; University of Strathclyde
  摘要：This article is concerned with the design of a feedback control based on past states in order to make a given unstable hybrid stochastic differential equation (SDE) to be stable in distribution (stabilization in distribution). This is the first article in this direction. Under the global Lipschitz condition on the coefficients of the given unstable hybrid SDE, we will show that the stabilization in distribution can be achieved by linear delay feedback controls. In particular, we discuss how to...
• PID Control of Biochemical Reaction Networks AI翻译
  作者：Whitby, Max; Cardelli, Luca; Kwiatkowska, Marta; Laurenti, Luca; Tribastone, Mirco; Tschaikowski, Max
  作者单位：University of Oxford; IMT School for Advanced Studies Lucca; Aalborg University
  摘要：Principles of feedback control have been shown to naturally arise in biological systems and have been applied with success to build synthetic circuits. Here, we present an implementation of a proportional-integral-derivative (PID) controller as a chemical reaction network with mass-action kinetics. This makes the controller synthesizable in vitro using DNA strand displacement technology, owing to its demonstrated capability of realizing arbitrary reaction-network designs as interacting DNA mol...
• Nonexistence of the Asymptotic Flocking in the Cucker-Smale Model With Short Range Communication Weights AI翻译
  作者：Yin, Xiuxia; Gao, Zhiwei; Chen, Zili; Fu, Yichuan
  作者单位：Nanchang University; Northumbria University
  摘要：For the long range communicated Cucker-Smale model, the asymptotic flocking exists for any initialcondition. It is noted that, for the short range communicated Cucker-Smale model, the asymptotic flocking only holds for very restricted initial conditions. In this case, the nonexistence of the asymptotic flocking has been frequently observed in numerical simulations, however, the theoretical results are far from perfect. In this note, we first point out that the nonexistence of the asymptotic fl...