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作者：Wu, Jenq-Lang
作者单位：National Taiwan Ocean University
摘要：This note considers the design of static output feedback mixed H-2/H-infinity controllers for linear control systems with certain equality and inequality constraints imposed directly on the feedback matrix. Based on the barrier method, we solve an auxiliary minimization problem to obtain an approximate solution to the original nonconvex-constrained optimization problem. The necessary conditions for the optimal solution of the auxiliary minimization problem are derived using the Lagrange multip...
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作者：Liu, Rongjian; Lu, Jianquan; Hadjicostis, Christoforos N.
作者单位：Chongqing Normal University; Southeast University - China; Southeast University - China; University of Cyprus
摘要：The enforcement of opacity, a security property concerning information-flow, has been investigated using edit functions, which are capable of manipulating the output of the system via insertion, replacement, and erasure operations on its symbols, in order to ensure that an outside observer (the intruder) does not gain access to critical system information. In this article, we consider situations where an intended receiver may be present and develop attribute-based edit functions, which not onl...
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作者：Nguyen, Hoai-Nam
作者单位：IMT - Institut Mines-Telecom; Institut Polytechnique de Paris; Telecom SudParis
摘要：The purposes of this paper are twofold. The first is to derive a convex formulation for optimizing the fictitious dynamics of the extended command governor strategy recently proposed in Gilbert and Ong (2011). The second purpose is to provide an efficient procedure to solve online the optimization problem of the ellipsoidal set-based command governor or the extended command governor. Two numerical examples with comparison to earlier solutions from the literature illustrate the effectiveness of...
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作者：Lopez, Victor G.; Lewis, Frank L.; Liu, Mushuang; Wan, Yan
作者单位：Leibniz University Hannover; University of Texas System; University of Texas Arlington; University of Texas System; University of Texas Arlington
摘要：Differential graphical games model the interaction between networked dynamical agents that do not possess global state information available. In general, this lack of global information prevents the agents from playing their optimal Nash strategies. In this article, two different solution concepts for graphical games are proposed as practical alternatives when Nash equilibrium is not attainable among the players. The proposed solutions consider the case on which the players make optimistic ass...
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作者：Yin, Xiuxia; Yue, Dong; Han, Qing-Long
作者单位：Nanchang University; Nanjing University of Posts & Telecommunications; Swinburne University of Technology
摘要：When the communication weight has a short range, the distance between agents could tend to infinity for some initial conditions, which leads to the nonexistence of well-studied flocking behavior in the Cucker-Smale model with (or without) nonlinear velocity couplings. To control the distance, it is natural to consider this model with pairwise attractive potentials. Therefore, this note investigates the Cucker-Smale model with nonlinear velocity couplings and attractive potentials. When the att...
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作者：Demetriou, Michael A.
作者单位：Worcester Polytechnic Institute
摘要：The regression-based reconstruction of spatial fields by static sensors requires the number of measurements be at least equal to the number of unknown parameters in order to provide a unique solution. Improvements include the use of mobile sensor networks to arrive at higher accuracy estimates. An alternate approach utilizes adaptive techniques to update the parameter estimates online. Such adaptive techniques need persistence of excitation to ensure convergence of the parameter and function e...
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作者：Feng, Yu; Sun, Hongda
作者单位：Zhejiang University of Technology
摘要：Unlike the traditional point-to-point control structure, control system design through network media introduces additional constraints due to limited capacities of the used communication channels. In this article, we address the optimal performance control problem for linear uncertain discrete-time systems over multiple additive white Gaussian noise channels, where mean power constraints are imposed on the actuator side. The desired controller is aimed to robustly stabilize the plant, to minim...
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作者：Proskurnikov, Anton V.; Calafiore, Giuseppe Carlo
作者单位：Polytechnic University of Turin
摘要：Consensus among autonomous agents is a key problem in multiagent control. In this article, we consider averaging consensus policies over time-varying graphs in presence of unknown but bounded communication delays. It is known that consensus is established (no matter how large the delays are) if the graph is periodically, or uniformly quasi-strongly connected (UQSC). The UQSC condition is often believed to be the weakest sufficient condition under which consensus can be proved. We show that the...
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作者：Wang, Huanqing; Xu, Ke; Zhang, Huaguang
作者单位：Bohai University; Beijing Jiaotong University; Northeastern University - China
摘要：In this article, the problem of adaptive backstepping finite-time tracking control is investigated for a class of strict-feedback nonlinear systems with unmodeled dynamics and dynamic disturbances. A modified finite-time dynamic signal is first introduced to dominate the dynamic disturbance. By using the adaptive control, backstepping technique, and finite-time stability theory, an adaptive finite-time tracking controller is developed. Under the proposed control scheme, the finite-time trackin...
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作者：Wu, Haiwen; Jayawardhana, Bayu; de Marina, Hector Garcia; Xu, Dabo
作者单位：University of Groningen; Chinese University of Hong Kong; University of Granada; South China University of Technology
摘要：This article addresses the problem of achieving and maintaining the 2-D/3-D formation shape of networked manipulator end effectors. We first present a distributed formation controller for manipulators whose system parameters are perfectly known. The formation control objective is achieved by assigning virtual springs between end effectors and by adding damping terms at joints, which provides a clear physical interpretation of the proposed solution. Subsequently, we extend it to the case where ...
