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作者：Glushchenko, Anton; Lastochkin, Konstantin
作者单位：V.A. Trapeznikov Institute of Control Sciences, Russian Academy of Sciences
摘要：Existing online continuous-time parameter estimation laws provide exact (asymptotic/exponential or finite/fixed time) identification of dynamical linear/nonlinear systems parameters only if the external perturbations are vanishing to zero or independent with the regressor of the system. However, in real systems the disturbances are almost always nonvanishing and dependent with the regressor. In the presence of perturbations with such properties the abovementioned identification approaches ensu...
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作者：Guo, Jia; Zhang, Fumin
作者单位：Cornell University; Hong Kong University of Science & Technology
摘要：Parameterization is a necessary step for learning unstructured unknown dynamical systems. In this article, we aim to balance the tradeoff between expressiveness and complexity when selecting models for parameterizing unstructured dynamics using universal regression models. Rather than using a fixed set of basis functions in the regression model, we introduce the event-triggered basis augmentation (ETBA) technique for adaptive estimation, which gradually builds up an expressive regression model...
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作者：Kim, Junsoo; Lee, Jin Gyu; Sandberg, Henrik; Johansson, Karl H.
作者单位：Seoul National University of Science & Technology; Seoul National University (SNU); Royal Institute of Technology
摘要：A resilient state estimation scheme for uniformly observable nonlinear systems, based on a method for local identification of sensor attacks, is presented. The estimation problem is combinatorial in nature, and so many methods require substantial computational and storage resources as the number of sensors increases. To reduce the complexity, the proposed method performs the attack identification with local subsets of the measurements, not with the set of all measurements. A condition for nonl...
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作者：Miller, Jared; Dai, Tianyu; Sznaier, Mario
作者单位：Swiss Federal Institutes of Technology Domain; ETH Zurich; Northeastern University; MathWorks
摘要：This article presents a sum of squares (SOS)-based framework to perform data-driven stabilization and robust control tasks on discrete-time linear systems where the full-state observations are corrupted by & ell;(infinity )bounded input, measurement, and process noise (error in variable setting). Certificates of full-state-feedback robust performance, superstabilization or quadratic stabilization of all plants in a consistency set are provided by solving a feasibility program formed by polynom...
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作者：Shinohara, Takumi; Namerikawa, Toru
作者单位：Keio University; Keio University
摘要：In this article, we deal with the optimal security investment problem for secure state estimation on cyber-physical systems. Toward effective secure state estimation, we aim to determine an optimal security investment that maximizes cost-effectiveness between the cost of the countermeasures and the effect of reinforcing the system resilience. Specifically, for each sensor, we decide whether to take costly security-aware action or inexpensive nonsecurity-aware action. In this article, we call t...
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作者：Toller, Daniele; Tribastone, Mirco; Tschaikowski, Max; Vandin, Andrea
作者单位：Aalborg University; IMT School for Advanced Studies Lucca; Technical University of Denmark
摘要：The ability to control complex networks is of crucial importance across a wide range of applications in natural and engineering sciences. However, issues of both theoretical and numerical nature introduce fundamental limitations to controlling large-scale networks. In this article, we cope with this problem by introducing a coarse-graining algorithm. It leads to an aggregated network which satisfies control equivalence, i.e., such that the optimal control values for the original network can be...
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作者：Yan, Rui; Mi, Shuai; Duan, Xiaoming; Chen, Jintao; Ji, Xiangyang
作者单位：Beihang University; Tsinghua University; Shanghai Jiao Tong University
摘要：This article studies a multiplayer reach-avoid differential game in the presence of general polygonal obstacles that block the players' motions. The pursuers cooperate to protect a convex region from the evaders who try to reach the region. We propose a multiplayer onsite and close-to-goal (MOCG) pursuit strategy that can tell and achieve an increasing lower bound on the number of guaranteed defeated evaders. This pursuit strategy fuses the subgame outcomes for multiple pursuers against one ev...
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作者：Chen, Ge; Su, Wei; Mei, Wenjun; Bullo, Francesco
作者单位：Chinese Academy of Sciences; Beijing Jiaotong University; Peking University; University of California System; University of California Santa Barbara
摘要：The Deffuant-Weisbuch (DW) model is a well-known bounded confidence opinion dynamics that has attracted wide interest. Although the heterogeneous DW model has been studied via simulations over 20 years, its convergence proof is open. Our previous paper (Chen et al., 2020) solves the problem for the case of uniform weighting factors greater than or equal to 1/2, but the general case remains unresolved. This article considers the DW model with heterogeneous confidence bounds and heterogeneous (u...
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作者：Jafarpour, Saber; Coogan, Samuel
作者单位：University of Colorado System; University of Colorado Boulder; University System of Georgia; Georgia Institute of Technology
摘要：In this note, we study monotone dynamical systems with respect to polyhedral cones. Using the half-space representation and the vertex representation, we propose three equivalent conditions to certify monotonicity of a dynamical system with respect to a polyhedral cone. We then introduce the notion of gauge norm associated with a cone and provide closed-from formulas for computing gauge norms associated with polyhedral cones. A key feature of gauge norms is that contractivity of monotone syste...
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作者：Liang, Jiajin; Zhao, Di; Qiu, Li
作者单位：Tongji University; Tongji University; Hong Kong University of Science & Technology; The Chinese University of Hong Kong, Shenzhen
摘要：In this study, we investigate the robust feedback stability problem for multiple-input-multiple-output linear time-invariant systems involving sectored-disk uncertainty, namely, dynamic uncertainty subject to simultaneous gain and phase constraints. This problem is thereby called a sectored-disk problem. Employing a frequency-wise analysis approach, we derive a fundamental static matrix problem that serves as a key component in addressing the feedback stability. The study of this matrix proble...
