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作者:Li, Yuzhe; Yang, Yake; Zhao, Zhengen; Zhou, Jing; Quevedo, Daniel E.
作者单位:Northeastern University - China; Nanjing University of Aeronautics & Astronautics; University of Alberta; Queensland University of Technology (QUT)
摘要:The problem of deception attacks utilizing both disclosure and disruption resources in the multiple types of sensors setting against remote state estimation is investigated in this article. A group of sensors, including reliable and unreliable ones, measure system states and transmit innovations to a remote fusion center via wireless channels, wherein a malicious attacker can modify the data packets of unreliable sensors. By virtue of disclosure resources of reliable sensors and disruption res...
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作者:Katiyar, Atul; Roy, Sayan Basu; Bhasin, Shubhendu
作者单位:Mahatma Jyotiba Phule Rohilkhand University; Indraprastha Institute of Information Technology Delhi; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Delhi
摘要:This article addresses the problem of adaptive observer design for multi-input multioutput linear time-invariant plants, under the effects of bounded disturbances in the system dynamics and the output, without requiring the persistence of excitation (PE) condition for parameter convergence. A switched robust adaptive observer is proposed, based on initial excitation, a milder condition as compared to PE in terms of excitation requirement and online verifiability. The unknown initial condition ...
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作者:Limebeer, David J. N.; Farshi, Farhang Haddad; Ober-Blobaum, Sina
作者单位:University of Witwatersrand; Autonomous University of Barcelona; University of Paderborn
摘要:In previous work a variational integration scheme for mechanical systems containing linear dissipation was developed (Limebeer et al., 2020). The key idea is to use a transmission line as the solution to a power-balancing control problem-in the physics literature controllers of this type are known as heat baths. The power-balanced closed-loop system is thereby made amenable to analysis with Hamilton's principle. As a consequence, variational principles can be used to find symplectic integratio...
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作者:Di Ferdinando, Mario; Pepe, Pierdomenico; Gennaro, Stefano Di
作者单位:University of L'Aquila
摘要:In this article, the stability preservation problem for locally Lipschitz nonlinear time-delay systems, by emulation of continuous-time dynamic output feedback controllers, is studied. Sufficient Lyapunov-like conditions are provided such that, by suitably fast sampling, the Euler emulation of continuous-time dynamic output feedback controllers ensures the semiglobal exponential stability of the related sampled-data closed-loop system. If other emulation schemes than the Euler one are used, pr...
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作者:Hmedi, Hassan; Carroll, Johnson; Arapostathis, Ari
作者单位:University of Texas System; University of Texas Austin; University of Johannesburg
摘要:Motivated by various distributed control applications, we consider a linear system with Gaussian noise observed by multiple sensors which transmit measurements over a dynamic lossy network. We characterize the stationary optimal sensor scheduling policy for the finite horizon, discounted, and long-term average cost problems and show that the value iteration algorithm converges to a solution of the average cost problem. We further show that the suboptimal policies provided by the rolling horizo...
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作者:Jiang, Yi; Shi, Dawei; Fan, Jialu; Chai, Tianyou; Chen, Tongwen
作者单位:Northeastern University - China; Northeastern University - China; City University of Hong Kong; Beijing Institute of Technology; University of Alberta
摘要:In this work, we develop an event-triggered adaptive control approach for solving the state tracking problem of linear partially time-variant continuous-time systems with the nonlinear state-dependent matched parametric uncertainty under unknown system dynamics. First, an event-triggered model reference adaptive controller is designed, which is composed of event-triggered adaptive laws based on the event-updated information and an event-triggering condition depending on the state tracking erro...
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作者:Li, Jun-Yi; Wang, Zidong; Lu, Renquan; Xu, Yong
作者单位:Guangdong University of Technology; Guangdong University of Technology; Brunel University
摘要:This article is concerned with the distributed filtering issue for linear discrete-time systems under bounded noises and constrained bit rate over wireless sensor networks. The communication between different sensor nodes is implemented via a wireless digital communication network with limited bandwidth. A bit rate constraint, which is subject to the so-called bandwidth allocation strategy, is placed to quantify the effect of the network bandwidth on the distributed filtering performance. An i...
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作者:Gomez, Marco A.; Cruz-Ancona, Christopher D.; Fridman, Leonid
作者单位:Universidad de Guanajuato; Universidad Nacional Autonoma de Mexico
摘要:We present a new continuous Lyapunov redesign (LR) methodology for the robust stabilization of a class of uncertain time-delay systems that is based on the so-called super twisting algorithm. The main feature of the proposed approach is that allows one to simultaneously adjust the chattering effect and achieve asymptotic stabilization of the uncertain system, which is lost when continuous approximation of the unit control is considered. At the basis of the super twisting based LR methodology i...
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作者:Sarkka, Simo; Garcia-Fernandez, Angel F.
作者单位:Aalto University; University of Liverpool
摘要:This article proposes a general formulation for temporal parallelization of dynamic programming for optimal control problems. We derive the elements and associative operators to be able to use parallel scans to solve these problems with logarithmic time complexity rather than linear time complexity. We apply this methodology to problems with finite state and control spaces, linear quadratic tracking control problems, and to a class of nonlinear control problems. The computational benefits of t...
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作者:Wang, Le Yi; Yin, George; Lin, Feng; Polis, Michael P.; Chen, Wen
作者单位:Wayne State University; University of Connecticut; Oakland University; Wayne State University
摘要:This article investigates observability and observer design for randomly switched linear systems (RSLSs) whose subsystems are all unobservable. Conditions for determining the analog state uniquely during operation, defined as stochastic observability, are studied. This article establishes probabilistic descriptions of stochastic observability for fast switching RSLSs. Design methods for subsystem observers and their organization for estimating the entire state are introduced. Convergence prope...