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作者：Sun, Dawei; Shao, Haoyuan; Li, Daochun; Xiang, Jinwu
作者单位：Beihang University
摘要：For switched systems, it is often crucial to identify which mode is currently activated. To achieve this, one could design specific control inputs, known as discerning controls, that force the system to reveal its active mode through its measured outputs. A system is said to be controlled mode discernible if such an input exists. Controlled mode discernibility for switched systems with unknown inputs has rarely been discussed, but it has important applications in active fault diagnosis. The ob...
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作者：Sun, Jintao; Cantoni, Michael
作者单位：University of Melbourne
摘要：Standard formulations of prescribed worst-case disturbance energy-gain control policies for linear time-varying systems depend on all forward model data. In discrete time, this dependence arises through a backward Riccati recursion. This article is about the infinite-horizon l(2) gain performance of state feedback policies with only finite receding-horizon preview of the model parameters. The proposed synthesis of controllers subject to such a constraint leverages the strict contraction of lif...
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作者：Han, Shibo; Hou, Bonan; Zhang, Yuhao; Shi, Xiaotong; Zhao, Xingwei
作者单位：Hubei University; National University of Singapore; Singapore University of Technology & Design; Huazhong University of Science & Technology
摘要：In this article, a model predictive control (MPC) method is proposed for constrained linear systems to track bounded references generated by linear exosystems with arbitrary Lyapunov stable dynamics. In the proposed method, sudden changes in reference are taken into account and are addressed by introducing an artificial reference as an additional decision variable. The cost function penalizes both the artificial state error and the reference error, while the terminal constraint is imposed on t...
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作者：Tao, Qianle; Liu, Yongfang; Zhao, Yu; Xian, Chengxin; Wen, Guanghui; Chen, Guanrong
作者单位：Northwestern Polytechnical University; City University of Hong Kong; Southeast University - China; City University of Hong Kong
摘要：This article addresses specified-time distributed Nash equilibrium seeking (ST-DNES) problems for aggregative games over unbalanced directed communication networks. Each player's cost function is influenced by both its own strategy and an aggregate of all other players' strategies. First, a new research framework is developed, named specified-time collaborative planning and seeking. Under this framework, a class of ST-DNES algorithms is designed with a specified-time distributed average estima...
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作者：Wang, Zhanxiu; Li, Huanhuan; Jin, Zhenghong; Jiang, Yi
作者单位：Yancheng Teachers University; Henan University of Technology; Zhejiang University; Nanyang Technological University; Huazhong University of Science & Technology; Huazhong University of Science & Technology; Huazhong University of Science & Technology
摘要：This article investigates the asymptotic state agreement problem for discrete-time multiagent systems with time-varying communication delays under directed and flexible topologies. A nonlinear distributed scheme is proposed for dynamic agents modeled by first-order integrators. Based on the proposed scheme, necessary and sufficient conditions are derived to guarantee the asymptotic state agreement, provided that the directed switching network topology satisfies a mild joint connectivity assump...
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作者：Xiao, Shuixin; Liang, Weichao; Dong, Daoyi; Petersen, Ian R.; Ugrinovskii, Valery
作者单位：University of New South Wales Sydney; Australian National University; University of Melbourne; Xi'an Jiaotong University; University of Technology Sydney
摘要：The coherent equalization problem involves designing a quantum system that serves as a mean-square near-optimal filter for a given quantum communication channel. Previous work on coherent equalization has typically assumed that the system parameters are known without uncertainty. In this work, we address the problem of coherent passive equalization with uncertainty in the Hamiltonian. Utilizing an S-procedure method, we remodel the passive quantum system with uncertainty as a scaled closed-loo...
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作者：Gakis, Grigorios; Smith, Malcolm C.
作者单位：University of Cambridge
摘要：This article derives a filtering and a smoothing algorithm for simultaneous input and state estimation for linear discrete-time systems of any inherent delay. The exogenous input is assumed to be completely unknown and the only stochastic assumptions are on the output measurements and the initial state. The algorithm includes the Kalman filter which is itself a special case of a system with an inherent delay of zero. The derived recursions take a similar form to the Kalman filter, and are stra...
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作者：Teter, Alexis M. H.; Wang, Wenqing; Halder, Abhishek
作者单位：University of California System; University of California Santa Cruz; Iowa State University
摘要：Schrodinger bridge is a diffusion process that steers a given distribution to another in a prescribed time while minimizing the effort to do so. It can be seen as the stochastic dynamical version of the optimal mass transport, and has growing applications in generative diffusion models and stochastic optimal control. We say a Schr & ouml;dinger bridge is exactly solvable if the associated uncontrolled Markov kernel is available in closed form, since then the bridge can be numerically computed ...
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作者：Chen, Lujing; Chen, Tianshi; Andersen, Martin S.
作者单位：Technical University of Denmark; The Chinese University of Hong Kong, Shenzhen; Shenzhen Research Institute of Big Data; The Chinese University of Hong Kong, Shenzhen
摘要：This article proposes a scalable, matrix-free approach to kernel-based regularization for finite impulse response estimation. Our methodology is based on Bayesian optimization, a gradient-free global optimization strategy that can handle noisy objective function evaluations and is suitable for indirect or stochastic hyperparameter estimation. A key assumption is that the kernel function only has a small number of parameters and that matrix-vector products with the kernel matrix are inexpensive...
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作者：Peng, Dongxue; Yang, Hao; Jiang, Bin; Ellinas, Georgios; Polycarpou, Marios M.
作者单位：Nanjing University of Aeronautics & Astronautics; University of Cyprus; Nanjing University of Aeronautics & Astronautics
摘要：This work extends the distributed Nash equilibrium seeking algorithm to address multiagent games under time-varying, signed, and undirected communication networks. Initially, based on uniform complete observability for linear time-varying systems, a new analytical framework is developed to determine the necessary and sufficient condition for achieving globally uniformly exponential stability of the error dynamics of the distributed estimator. It is shown that exponential stability is realized ...
