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作者:Yang, Yize; Chen, Yang-Yang; Li, Shihua
作者单位:Southeast University - China; Southeast University - China
摘要:This article addresses the multigroup consensus problem with signed networks, where a set of agents with positive-weight edges is treated as a group, and the edges among groups are negative weights. Based on group homomorphism theory, each group can be mapped as a virtual node, called the group representative node. Consequently, the signed networks can be represented by the homomorphic mapping graph with only negative weight edges. The definition of structural balance has been extended, elimin...
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作者:Li, Lili; Guo, Qingjun; Fu, Jun; Rong, Di
作者单位:Dalian Maritime University; Northeastern University - China
摘要:The secure output regulation (OR) problem is formulated for networked switched systems (SSs) with severely unstable dynamics that are subjected to long-duration zero-value (LDZV) attacks. For these systems, well-defined switching rules enable the severely unstable dynamics to achieve stability and OR by allowing each subsystem to dwell for a short period. However, during LDZV attacks, the system's external variables (inputs and outputs) are set to zero for a long period. Given the presence of ...
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作者:Qian, Chen; Fang, Yongchun
作者单位:Nankai University; Nankai University
摘要:The objective of this article is to derive the essential invariance and contraction properties for the geometric periodic systems, which can be formulated as a category of differential inclusions, and primarily rendered in the phase coordinate, or the cycle coordinate. First, we introduce the geometric averaging method for this category of systems, and also analyze the accuracy of its averaging approximation. Specifically, we delve into the details of the geometrically periodic system through ...
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作者:Zhu, Shaoqin; Ji, Xiaoqiang; Longman, Richard W.; Xu, Yangsheng
作者单位:The Chinese University of Hong Kong, Shenzhen; Shenzhen Institute of Artificial Intelligence & Robotics for Society; Columbia University
摘要:Feedforward control demonstrates the capacity of precision tracking in applications, typically necessitating the solution of the inverse model. For nonminimum phase systems with unstable internal dynamics, the inverse model yields unbounded inputs, impeding the implementation of the feedforward control method. Existing stable inversion leverages noncausal input and initial state transition to achieve exact tracking with an infinite time preview of the output. However, a limited preview window ...
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作者:Kang, Jiayi; Jiao, Xiaopei; Yau, Stephen S. -T.
作者单位:Tsinghua University
摘要:In this article, an optimal transportation particle method has been proposed to deal with the data fusion problem. The proposed method can handle prediction, filtering, and smoothing problems uniformly more robustly and stably than traditional algorithms. Our main idea is to approximate the trajectory in Wasserstein space, which is the set of probability distributions equipped with the Wasserstein metric. Recent literature has demonstrated the successful application of optimal transportation f...
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作者:Dehnert, Robert; Rosik, Michelle; Lerch, Sabine; Rauh, Andreas; Tibken, Bernd
作者单位:University of Wuppertal; Carl von Ossietzky Universitat Oldenburg
摘要:This work is dedicated to a less conservative observer-based controller design method using linear matrix inequality (LMI) for discrete-time quasi-linear systems with polynomial parameter dependencies subject to stochastic noise. While robust closed loop stability of the deterministic part of the closed loop is guaranteed by a Lyapunov-based approach, the performance is improved by a separate D-R eigenvalue region for the controller and observer. In addition, input, process, and sensor noise i...
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作者:Sang, Hong; Cui, Chongyi; Wang, Peng; Liu, Yi; Huang, Chuangxia; Cao, Jinde
作者单位:Dalian Maritime University; Fuzhou University; Changsha University of Science & Technology; Southeast University - China; Purple Mountain Laboratories
摘要:Sampled-data-based event-triggered (SDET) communication techniques have found extensive applications in the research of synchronization and consensus in directed networks (DNs). However, as the quantity of nodes in a network expands, existing investigations encounter difficulties in obtaining solutions within finite computation times due to computational complexity. For coping with this scenario, a novel event-triggered pinning quasi-synchronization approach is explored in this research for a ...
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作者:Chen, Guoliang; Liu, Xinru; Ren, Xiaoqiang; Xia, Jianwei; Park, Ju H.
作者单位:Liaocheng University; Shanghai University; Yeungnam University
摘要:This article investigates the design and countermeasure for a class of stealthy attack, called zero-dynamics attack, targeting aperiodic sampled-data control systems. From the viewpoint of attackers, the attack design strategy against aperiodic sampled-data control systems is proposed. The strategy ensures that the detection signal at sampling instants consistently remains zero, allowing the designed zero-dynamics attack to achieve stealthiness. From the perspective of defenders, asynchronous ...
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作者:Kuntz, Steven J.; Rawlings, James B.
作者单位:University of California System; University of California Santa Barbara
摘要:This article addresses the maximum likelihood identification of models for offset-free model predictive control, where linear time-invariant models are augmented with (fictitious) uncontrollable integrating modes, called integrating disturbances. The states and disturbances are typically estimated with a Kalman filter. The disturbance estimates effectively provide integral control, so the quality of the disturbance model (and resulting filter) directly influences the control performance. We im...
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作者:Wang, Zhi-Min; Liu, Kun-Zhi; Cheng, Xiao-Lin; Sun, Xi-Ming
作者单位:Dalian University of Technology
摘要:In this article, we consider the stabilization problem of switched systems consisting of a limited number of unknown linear subsystems regulated by unknown switching signals. To this end, we first develop a data-driven model predictive control (MPC) scheme with the online input-output trajectory of switched linear systems. Considering the mismatch of the data during the switching interval, the slack variable is introduced to ensure the feasibility of the algorithm. Then, the stability of the s...