-
作者：Henry, David
作者单位：Universite de Bordeaux
摘要：This article establishes the explicit formulas for the equivalence between fault detection filters and observers. The method relies on solving a Sylvester equation, the Schur decomposition, and algebraic manipulations. The equivalence being demonstrated valid from a generic point of view, it is shown that H-infinity,H_,H-2,and H-2g robust residual generators and H-infinity\mu fault estimators are particular cases. A numerical example and a realistic satellite's example illustrate the equivalen...
-
作者：Maghenem, M.; Pasillas-Lepine, W.; Loria, A.; Aguado-Rojas, M.
作者单位：Centre National de la Recherche Scientifique (CNRS); Communaute Universite Grenoble Alpes; Universite Grenoble Alpes (UGA); Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS)
摘要：We analyze a case study of output-feedback stabilization of an unobservable equilibrium. The problem involves achieving two conflicting goals: to estimate the unmeasured states, for which the system must a priori operate in an oscillatory regime, and to stabilize an equilibrium asymptotically. To overcome this quandary we propose a novel hybrid controller that generates a piecewise constant dwindling reference designed to make the system operate in an oscillatory, yet asymptotically stable, re...
-
作者：Wang, Liqing; Wu, Zheng-Guang
作者单位：Zhejiang Sci-Tech University; Shenzhen Polytechnic University; Zhejiang University
摘要：Synchronization of large-scale Boolean networks (BNs) is studied in this article. Using semi-tensor product of matrices, the algebraic structure of all subnetworks' relationships is constructed. A necessary and sufficient condition is obtained for synchronization of large-scale BNs. For those asynchronous large-scale BNs, pinning control is first applied to achieve the control objective, including choosing the subnetworks to be controlled, by designing the corresponding feedback control accord...
-
作者：Baranwal, Mayank; Budhraja, Param; Raj, Vishal; Hota, Ashish R.
作者单位：Tata Sons; Tata Consultancy Services Limited (TCS); Boston University; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Kharagpur
摘要：Gradient-based first-order convex optimization algorithms find widespread applicability in a variety of domains, including machine learning tasks. Motivated by the recent advances in fixed-time stability theory of continuous-time dynamical systems, we introduce a generalized framework for designing accelerated optimization algorithms with strongest convergence guarantees that further extend to a subclass of nonconvex functions. In particular, we introduce the GenFlow algorithm and its momentum...
-
作者：Dibo, Aline; Oliveira, Tiago Roux
作者单位：Universidade do Estado do Rio de Janeiro
摘要：Extremum seeking control aims at determining and keeping the output of a nonlinear static or dynamic map on its unknown extremum point. In the literature, despite considering an unknown objective function in the real-time optimization problem, it is mandatory to know whether the extremum point is a maximum or a minimum, which is characterized by means of the Hessian sign of the nonlinear scalar map. This article proposes that the process of extremum seeking occurs independently of the Hessian ...
-
作者：Liu, Shenyu
作者单位：Beijing Institute of Technology
摘要：This technical note studies characterizations and stability criteria for the 2-mode Markovian switched nonlinear systems. A Markovian switched nonlinear system is a switched system where its switching signal is induced by a continuous-time Markov chain. Two random processes-telegraph process and counting process-are defined on the stochastic switching signal. The evolution of the joint probability density functions of the two random processes conditional on the initial values of the switching ...
-
作者：Chang, Taige; Cao, Xianghui; Zheng, Wei Xing
作者单位：Southeast University - China; Western Sydney University
摘要：This article investigates the problem of sensor scheduling for remotely estimating the states of heterogeneous dynamical systems over resource-limited and lossy wireless channels. Considering the low time complexity and high versatility requirements of schedulers deployed on the transport layer, we propose a lightweight scheduler based on an Age of Information function built with the tight scalar upper bound of the remote estimation error. We show that the proposed scheduler is indexable and s...
-
作者：Moreschini, Alessio; Monaco, Salvatore; Normand-Cyrot, Dorothee
作者单位：Imperial College London; Sapienza University Rome; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS)
摘要：This article discusses the Dirac structure and the state-space representation of a class of port-Hamiltonian systems that evolve in discrete time. The characterization of the underlying Dirac structure depends on separating the stored energy associated with the system into two distinct components. Moreover, it is shown that power-preserving interconnection and negative output feedback maintain the port-Hamiltonian structure while increasing the dimension of the Dirac structure. Finally, the pr...
-
作者：El-Kebir, Hamza; Pirosmanishvili, Ani; Ornik, Melkior
作者单位：University of Illinois System; University of Illinois Urbana-Champaign; University of Illinois System; University of Illinois Urbana-Champaign
摘要：This article presents a method of efficiently computing inner and outer approximations of forward reachable sets for nonlinear control systems with changed dynamics and control authority, given an a priori computed reachable set for the nominal system. The method functions by shrinking or inflating a precomputed reachable set based on prior knowledge of the system's trajectory deviation growth dynamics, depending on whether an inner approximation or outer approximation is desired. These dynami...
-
作者：Krishnamurthy, Prashanth; Khorrami, Farshad
作者单位：New York University; New York University Tandon School of Engineering
摘要：We develop a general matrix pencil-based approach for efficient nonconservative realization of dual dynamic high-gain scaling-based control designs for a class of uncertain feedforward-like nonlinear systems. It is shown that the control design can be cast into a set of matrix pencil-based subproblems capturing the detailed system structure, state dependence structure of uncertain terms, and precise roles of design freedoms in the context of detailed structures of Lyapunov inequalities. The de...
