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作者：Nie, Rong; Du, Wenli; Li, Zhongmei; He, Shuping
作者单位：East China University of Science & Technology; Anhui University; East China University of Science & Technology
摘要：This study focuses on the finite-time consensus tracking problem for multi-agent systems (MASs) subject to random abrupt changes via distributed asynchronous sliding mode control (SMC). In particular, Markov jump model is exploited to describe the random abrupt changes in MASs parameters caused by external factors. Moreover, considering the nonsynchronization between the controller mode and the system mode caused by the delayed measurements between agents, a continuous-time hidden Markov model...
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作者：Hua, Chang-Chun; Li, Hao; Li, Kuo; Ning, Pengju
作者单位：Yanshan University; Hebei University of Science & Technology; University of Duisburg Essen
摘要：This article studies the adaptive prescribed-time control problem for a class of nonlinear systems with unknown time-varying control coefficients. Existing methods for unknown control direction problems can only achieve asymptotic stability based on Barbalat's lemma. Different from these results, we present a new theorem in conjunction with Nussbaum functions to achieve the prescribed-time stability. Meanwhile, the conservative condition of Nussbaum parameters is relaxed under time-varying con...
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作者：Emzir, Muhammad F.; Zhao, Zheng; Cheded, Lahouari; Sarkka, Simo
作者单位：King Fahd University of Petroleum & Minerals; Uppsala University; Aalto University
摘要：The automatic projection filter is a recently developed numerical method for projection filtering that leverages sparse-grid integration and automatic differentiation. However, its accuracy is highly sensitive to the accuracy of the cumulant-generating function computed via the sparse-grid integration, which in turn is also sensitive to the choice of the bijection from the canonical hypercube to the state space. In this article, we propose two new adaptive parametric bijections for the automat...
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作者：Han, Chunyan; Wang, Zidong; Zhang, Huanshui; Date, Paresh
作者单位：University of Jinan; Brunel University; Shandong University of Science & Technology; Brunel University
摘要：This article investigates the stabilization and optimal control problems for Markov jump linear system (MJLS) with multiplicative noises and input delays. By overcoming the substantive difficulty resulting from the invalidity of the separation principle, we provide a complete solution to the addressed problems by means of 1) necessary and sufficient solvability, and the analytical formula on optimal finite horizon control in line with a generalized coupled difference Riccati equation; and 2) n...
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作者：Li, Bin; Guan, Tao; Dai, Li; Duan, Guang-Ren
作者单位：Sichuan University; Beijing Institute of Technology; Harbin Institute of Technology
摘要：An output feedback stochastic model predictive control is proposed in this article for a class of stochastic linear discrete-time systems, in which the uncertainties from external disturbance, measurement noise, and initial state estimation error are all considered. Particularly, the support sets of the uncertainties are unbounded and the distributions are not exactly known. Based on distributionally robust optimization, a deterministic convex reformulation is derived for handling chance const...
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作者：Li, Haomin; Nahid-Mobarakeh, Babak; Emadi, Ali
作者单位：McMaster University
摘要：We show that the pair (speed, rotor position) of interior permanent magnet synchronous motors is not globally observable, and the number of all indistinguishable pairs is at most four, an invariant independent of any parameter. This result follows as a corollary by virtue of characterizing the observability condition as a special restricted form of the injectivity of a family of polynomials via immersion. The field-oriented control (FOC), which causes the collapse of at most two indistinguisha...
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作者：Liu, Di; Besselink, Bart; Baldi, Simone; Yu, Wenwu; Trentelman, Harry L.
作者单位：Southeast University - China; University of Groningen; Technical University of Munich; Southeast University - China
摘要：This work proposes a reachability approach to characterize how disturbances and safety propagate in a mixed platoon, i.e., a platoon with human-driven vehicles followed by a single automated vehicle. We look at the behavior of the leading vehicle as a unit-energy disturbance and study how this energy propagates along the states and the outputs of the system. To describe the propagation, we make use of ellipsoidal sets, and give conditions based on linear matrix inequalities to describe inclusi...
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作者：Zhang, Chencheng; Yang, Hao; Jiang, Bin; Cao, Ming
作者单位：Nanjing University of Aeronautics & Astronautics; University of Groningen
摘要：This article investigates the flocking control of a swarm with a malicious agent that falsifies its controller parameters to cause collision, division, and escape of agents in the swarm. A novel geometric flocking condition is established by designing the configuration of the malicious agent and its neighbors, under which we propose a hierarchical geometric configuration-based flocking control method. To help detect the malicious agent, a parameter estimate mechanism is also provided. The prop...
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作者：Chen, Shixiang; Garcia, Alfredo; Hong, Mingyi; Shahrampour, Shahin
作者单位：Chinese Academy of Sciences; University of Science & Technology of China, CAS; Texas A&M University System; Texas A&M University College Station; University of Minnesota System; University of Minnesota Twin Cities; Northeastern University
摘要：Coordinated group behavior arising from purely local interactions has been successfully modeled with distributed consensus-seeking dynamics, where the local behavior is aimed at minimizing the disagreement with neighboring peers. However, it has been recently shown that when constrained by a manifold geometry, distributed consensus-seeking dynamics may ultimately fail to converge to a global consensus state. In this article, we study discrete-time consensus-seeking dynamics on the Stiefel mani...
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作者：Deng, Chao; Xu, Lei; Yang, Tao; Yue, Dong; Chai, Tianyou
作者单位：Nanjing University of Posts & Telecommunications; Northeastern University - China
摘要：In this article, we investigate the distributed cooperative optimization problem for heterogeneous uncertain high-order nonlinear multi-agent systems with an intermittent communication network, where each agent can only share information with its neighbors in some disjoint time intervals. To address this problem, the design process consists of constructing a distributed optimization algorithm and designing a decentralized tracking controller. To design a distributed optimization algorithm, vir...
