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作者：Latosinski, Pawel; Bartoszewicz, Andrzej
作者单位：Lodz University of Technology
摘要：Reaching-law-based discrete sliding mode controllers are well known to be easy to tune and robust with respect to disturbance. In recent years, it has been demonstrated that their robustness can be further enhanced with the use of arbitrary relative degree sliding variables. However, reaching laws using such variables only ensure a good sliding mode performance of the system when the perturbations affecting the plant are matched, which is a very restrictive assumption. To address this issue an...
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作者：Linsenmayer, Steffen; Hertneck, Michael; Allgower, Frank
作者单位：University of Stuttgart
摘要：This article considers the stabilization of linear control systems under weakly hard real-time (WHRT) constraints. In the context of networked control systems, such WHRT constraints allow us to specify packet loss properties of a communication network over windows of a given length, e.g., at least n consecutive transmissions in every window of m consecutive transmission attempts are successful. Time- and event-triggered stabilization results are derived. The control design exploits a graph tha...
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作者：Xu, Juanjuan; Zhang, Zhaorong; Wang, Wei
作者单位：Shandong University; University of Newcastle
摘要：In this article, we are concerned with the consensus problem of multiagent system where the channels from each agent's control input to the plant are fading nonidentically. Two problems have been extensively studied. One is the consentable problem when the current state information is available for the controller. The other is that the state information is delayed for the controller in which we propose a novel predictorlike control protocol. It is obtained that the multiagent system with syste...
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作者：Jones, Morgan; Peet, Matthew M.
作者单位：Arizona State University; Arizona State University-Tempe
摘要：We consider a general class of dynamic programming (DP) problems with nonseparable objective functions. We show that for any problem in this class, there exists an augmented-state DP problem that satisfies the principle of optimality and the solutions to which yield solutions to the original problem. Furthermore, we identify a subclass of DP problems with naturally forward separable objective functions for which this state-augmentation scheme is tractable. We extend this framework to stochasti...
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作者：Li, Xianwei; Sun, Zhiyong; Tang, Yang; Karimi, Hamid Reza
作者单位：Shanghai Jiao Tong University; Lund University; Eindhoven University of Technology; East China University of Science & Technology; Polytechnic University of Milan
摘要：This article systematically studies consensus of linear multiagent systems (MASs) on directed graphs through adaptive event-triggered control. It presents innovative adaptive event-triggered state-feedback protocols with novel composite event-triggering conditions. Two specific designs in terms of different event-triggering conditions and laws of adaption are first discussed for linear MASs on strongly connected directed graphs, which are then extended to general directed graphs that contain a...
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作者：Mohsenipour, Reza; Agathoklis, Panajotis
作者单位：University of Victoria
摘要：The stability of two-dimensional (2-D) linear systems, continuous, discrete, and mixed (hybrid) cases with real or complex coefficients, is considered in this article using a single formalism. Algebraic necessary and sufficient conditions for testing the stability of these systems are developed. The conditions are based on the characteristic polynomial to be void of zero in the stability region which depends on the case being considered. These conditions consist of the stability test of few re...
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作者：Mi, Wen; Zheng, Wei Xing
作者单位：University of Electronic Science & Technology of China; Western Sydney University
摘要：In this article, we present two algorithms for identification of continuous-time linear time-invariant systems in frequency domain. These algorithms are constructed in terms of continuous rational orthogonal basis functions. First, a two-stage algorithm is developed through one-by-one selection of poles for the basis functions, and such consecutive selection is easy to realize. Next, a direct algorithm is proposed to select poles for the rational orthogonal basis functions. Different poles res...
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作者：Koppel, Alec; Warnell, Garrett; Stump, Ethan; Stone, Peter; Ribeiro, Alejandro
作者单位：United States Department of Defense; United States Army; US Army Research, Development & Engineering Command (RDECOM); US Army Research Laboratory (ARL); University of Texas System; University of Texas Austin; University of Pennsylvania
摘要：We consider policy evaluation in infinite-horizon discounted Markov decision problems with continuous compact state and action spaces. We reformulate this task as a compositional stochastic program with a function-valued decision variable that belongs to a reproducing kernel Hilbert space (RKHS). We approach this problem via a new functional generalization of stochastic quasi-gradient methods operating in tandem with stochastic sparse subspace projections. The result is an extension of gradien...
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作者：Wang, Yuan; Liu, Yungang
作者单位：Shandong University
摘要：This article investigates global practical output tracking via adaptive output feedback for a class of uncertain nonlinear systems. Remarkably, the control problem under investigation is in the context of unknown control directions and output feedback, which severely restricts the system nonlinearities. Nevertheless, the growth on the unknown system nonlinearities in this article is extended from polynomial (of output) to arbitrary function, and meanwhile no further a priori information is req...
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作者：Ouyang, Yi; Asghari, Seyed Mohammad; Nayyar, Ashutosh
作者单位：University of Southern California
摘要：We consider a decentralized networked control system (DNCS) consisting of a remote controller and a collection of linear plants, each associated with a local controller. Each local controller directly observes the state of its colocated plant and can inform the remote controller of the plant's state through an unreliable uplink channel. The downlink channels from the remote controller to local controllers were assumed to be perfect. The objective of the local controllers and the remote control...
