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作者：Zhao, Dong; Polycarpou, Marios M.
作者单位：University of Cyprus; University of Cyprus
摘要：This article considers the design and analysis of a distributed sensor fault accommodation scheme for a class of nonlinear systems, modeled as interconnected subsystems. Each subsystem is subject to possible local sensor faults or may be impacted by a sensor fault in a neighboring subsystem due to the exchange of information between neighboring controllers. The proposed adaptive approximation-based distributed fault accommodation scheme is triggered in the event that a sensor fault is detected...
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作者：Chaudhari, Aditya; Chakraborty, Debraj
作者单位：Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Bombay
摘要：In this article, a computationally efficient time-optimal feedback solution to the game of two cars, for the case where the pursuer is faster and more agile than the evader, is presented. The concept of continuous subsets of the reachable set is introduced to characterize the time-optimal pursuit-evasion game under feedback strategies. Using these subsets, it is shown that, if initially the pursuer is distant enough from the evader, then the feedback saddle point strategies for both the pursue...
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作者：Shang, Jun; Yu, Hao; Chen, Tongwen
作者单位：University of Alberta
摘要：This article considers the worst-case stealthy attack strategies on stochastic event-based state estimation. Smart sensors equipped with local event-triggered Kalman filters are used to transmit innovations. Contrary to classic Kalman filters, the transmitted innovation screened by the stochastic decision rule does not follow a Gaussian distribution. A type of distribution called complete Gaussian crater is defined and analyzed, which is essential for designing stealthy attacks. The evolution ...
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作者：Chen, Wu-Hua; Deng, Xiaoqing; Zheng, Wei Xing
作者单位：Guangxi University; Guangxi University; Western Sydney University
摘要：This article addresses the problem of sliding-mode control (SMC) of linear uncertain systems with impulse effects. The difficulty in solving such problem lies in that the continuity property of the well-used linear sliding function is lost under the intermittent impulsive action. In order to overcome this difficulty, a piecewise linear sliding function considering the dynamics properties of impulses is introduced, which turns out to be continuous along the trajectories of the impulsive system....
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作者：Li, Dongyu; Ge, Shuzhi Sam; Lee, Tong Heng
作者单位：Beihang University; National University of Singapore
摘要：In this article, simultaneous arrival to origin (SATO) convergence is defined-all state elements arriving at the origin at the same time. Accordingly, a relevant sufficient condition is proposed for SATO convergence. Based on this formulation of SATO convergence, the classical and norm-normalized (NN) sign functions are revisited. Their differences are studied with applications in sliding-mode control design. Both functions (expectedly when properly invoked) contribute to system stability, whi...
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作者：Como, Giacomo; Maggistro, Rosario
作者单位：Polytechnic University of Turin; University of Trieste
摘要：We study transportation networks controlled by dynamic feedback tolls. We focus on a multiscale model, whereby the dynamics of the traffic flows are intertwined with those of the routing choices. The latter are influenced by the current traffic state of the network as well as by dynamic tolls controlled in feedback by the system planner. We prove that a class of decentralized monotone flow-dependent tolls allows for globally stabilizing the transportation network around a generalized Wardrop e...
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作者：Ohta, Yoshito; Rapisarda, Paolo
作者单位：Kyoto University; University of Southampton
摘要：We establish formulas relating the state of a continuous-time system with that of the transformed one in a Takenaka-Malmquist-Kautz orthogonal basis. We use such relation to give a simple proof that if the original system is dissipative, then the transformed one is also dissipative with the same storage function. We apply our results to continuous-time subspace system identification.
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作者：Tie, Lin
作者单位：Beihang University
摘要：In this article, we consider controllability of discrete-time bilinear systems. A classical sufficient condition was obtained in this journal in 1973, which, unfortunately, is not algebraically verifiable, and the required control inputs to achieve state transition are unknown. However, based on a recently established notion, near-controllability, we propose a seeking nonzero entries approach to derive fully algebraically verifiable controllability criteria for discrete-time bilinear systems. ...
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作者：Yin, He; Seiler, Peter; Arcak, Murat
作者单位：University of California System; University of California Berkeley; University of Michigan System; University of Michigan
摘要：A method is presented to analyze the stability of feedback systems with neural network controllers. Two stability theorems are given to prove asymptotic stability and to compute an ellipsoidal innerapproximation to the region of attraction (ROA). The first theorem addresses linear time-invariant systems, and merges Lyapunov theory with local (sector) quadratic constraints to bound the nonlinear activation functions in the neural network. The second theorem allows the system to include perturba...
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作者：Ye, Mengbin; Liu, Ji; Anderson, Brian D. O.; Cao, Ming
作者单位：Curtin University; Curtin University; State University of New York (SUNY) System; Stony Brook University; Australian National University; University of Groningen
摘要：This article focuses on properties of equilibria and their associated regions of attraction for continuous-time nonlinear dynamical systems. The classical Poincare-Hopf theorem is used to derive a general result providing a sufficient condition for the system to have a unique equilibrium. The condition involves the Jacobian of the system at possible equilibria and ensures that the system is in fact locally exponentially stable. We apply this result to the susceptible-infected-susceptible (SIS)...
