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作者：Nozari, Erfan; Cortes, Jorge
作者单位：University of Pennsylvania; University of California System; University of California San Diego
摘要：Goal-driven selective attention (GDSA) is a remarkable function that allows the complex dynamical networks of the brain to support coherent perception and cognition. Part I of this two-part article proposes a new control-theoretic framework, termed hierarchical selective recruitment (HSR), to rigorously explain the emergence of GDSA from the brain's network structure and dynamics. This part completes the development of HSR by deriving conditions on the joint structure of the hierarchical subne...
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作者：Yu, Huan; Diagne, Mamadou; Zhang, Liguo; Krstic, Miroslav
作者单位：University of California System; University of California San Diego; Rensselaer Polytechnic Institute; Beijing University of Technology
摘要：We develop backstepping state feedback control to stabilize a moving shockwave in a freeway segment under bilateral boundary actuations of traffic flow. A moving shockwave, consisting of light traffic upstream of the shockwave and heavy traffic downstream, is usually caused by changes of local road situations. The density discontinuity travels upstream and drivers caught in the shockwave experience transitions from free to congested traffic. Boundary control design in this article brings the s...
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作者：Xu, Xiangru; Acikmese, Behcet; Corless, Martin J.
作者单位：University of Wisconsin System; University of Wisconsin Madison; University of Washington; University of Washington Seattle; Purdue University System; Purdue University
摘要：Robust global stabilization of nonlinear systems by observer-based feedback controllers is a challenging task. This article investigates the problem of designing observer-based stabilizing controllers for incrementally quadratic nonlinear systems with external disturbances. The nonlinearities considered in the system model satisfy the incremental quadratic constraints, which are characterized by incremental multiplier matrices and encompass many common nonlinearities. The simultaneous search f...
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作者：Dey, Priyanka; Balachandran, Niranjan
作者单位：Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Bombay; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Bombay
摘要：This article deals with computational complexity of various problems related to the zero controllability of a discrete-time linear time-invariant system, assuming that purely structural conditions at the level of the connections between the system states (i.e., state-connections) and the connections from the inputs to the states (i.e., input-connections) are known. Given a generically zero controllable system, we consider the following problems: i) find a minimal set of input-connections whose...
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作者：Sanjari, Sina; Yuksel, Serdar
作者单位：Queens University - Canada
摘要：We study stochastic static teams with countably infinite number of decision makers (DMs), with the goal of obtaining (globally) optimal policies under a decentralized information structure. We present sufficient conditions to connect the concepts of team optimality and person-byperson optimality for static teams with countably infinite number of DMs. We show that under uniform integrability and uniform convergence conditions, an optimal policy for static teams with countably infinite number of...
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作者：Sanjeevini, Sneha; Bernstein, Dennis S.
作者单位：University of Michigan System; University of Michigan
摘要：Transmission zeros can be counted by using the Smith-McMillan form, pole/zero modules, or the dimension of the largest output-nulling invariant subspace. This article provides an alternative approach by showing that the number of transmission zeros of a multiple-input-multiple-output (MIMO) transfer function is given in terms of the defect of a block Toeplitz matrix and the defect of an augmented matrix consisting of an observability matrix and the block Toeplitz matrix. It is also shown that ...
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作者：Koch, Anne; Montenbruck, Jan Maximilian; Allgower, Frank
作者单位：University of Stuttgart
摘要：Due to their relevance in controller design, we consider the problem of determining the L-2-gain, passivity properties, and conic relations of an input-output system. While, in practice, the input-output relation is often undisclosed, input-output data tuples can be sampled by performing (numerical) experiments. Hence, we present sampling strategies for discrete time and continuous time linear time-invariant systems to iteratively determine the L-2-gain, the shortage of passivity and the cone ...
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作者：Min, Huifang; Xu, Shengyuan; Zhang, Zhengqiang
作者单位：Nanjing University of Science & Technology
摘要：In this article, the adaptive finite-time tracking control is studied for state constrained stochastic nonlinear systems with parametric uncertainties and input saturation. To this end, a definition of semiglobally finite-time stability in probability (SGFSP) is presented and a related stochastic Lyapunov theorem is established and proved. To alleviate the serious uncertainties and state constraints, the adaptive backstepping control and barrier Lyapunov function are combined in a unified fram...
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作者：Mousavi, Shima Sadat; Haeri, Mohammad; Mesbahi, Mehran
作者单位：Sharif University of Technology; Swiss Federal Institutes of Technology Domain; ETH Zurich; University of Washington; University of Washington Seattle
摘要：This article investigates the robustness of strong structural controllability for linear time-invariant and linear time-varying directed networks with respect to structural perturbations, including edge deletions and additions. In this direction, we introduce a new construct referred to as a perfect graph associated with a network with a given set of control nodes. The tight upper bounds on the number of edges that can be added to, or removed from a network, while ensuring strong structural co...
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作者：Yang, Xuefei; Zhou, Bin; Mazenc, Frederic; Lam, James
作者单位：Harbin Institute of Technology; University of Hong Kong; Harbin Institute of Technology; Centre National de la Recherche Scientifique (CNRS); CNRS - Institute for Information Sciences & Technologies (INS2I); Universite Paris Saclay
摘要：This article studies the problem of global stabilization of discrete-time linear systems subject to input saturation and time delay. The considered time-delay systems are first transformed into delay-free systems based on prediction technique. Then, by utilizing saturation functions technique, the corresponding global stabilizing controllers are proposed for two special discrete-time linear systems-a chain of integrators and oscillators, and explicit conditions guaranteeing stability are also ...
