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作者:Chen, Yonggang; Wang, Zidong
作者单位:Henan Institute of Science & Technology; Henan Polytechnic University; Shandong University of Science & Technology; Brunel University
摘要:This article is concerned with the local stabilization problem for discrete-time systems with both distributed state delay and fast-varying input delay under actuator saturations. By introducing some terms concerning the distributedly delayed state and the current state, a novel polytopic model is first proposed to characterize the delayed saturation nonlinearity. Then, by incorporating a piecewise Lyapunov functional and some summation inequalities, a sufficient condition is established by me...
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作者:Kosaraju, Krishna Chaitanya; Cucuzzella, Michele; Scherpen, Jacquelien M. A.; Pasumarthy, Ramkrishna
作者单位:University of Notre Dame; University of Groningen; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Madras; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Madras
摘要:This article deals with a class of resistive-inductive-capacitive (RLC) circuits and switched RLC (s-RLC) circuits modeled in the Brayton-Moser framework. For this class of systems, new passivity properties using a Krasovskii-type Lyapunov function as storage function are presented, where the supply rate is function of the system states, inputs, and their first time derivatives. Moreover, after showing the integrability property of the port-variables, two simple control methodologies called ou...
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作者:Wang, Yongqing; Liu, Haibo; Li, Xu
作者单位:Dalian University of Technology; Key Laboratory Precision & Non-traditional Machining Technology
摘要:The Lyapunov-Krasovskii functional (LKF) method is an effective tool to obtain delay-dependent stability criteria of time-varying delay systems. However, in the method, the requirement that there must exist an appropriate LKF for a system with a delay varying in a delay interval is too strict and may lead to considerable conservativeness. In order to get less conservative stability criteria, a novel stability analysis method called a delay-mode-based LKF (DMBLKF) method is first presented for ...
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作者:Delimpaltadakis, Giannis; Mazo, Manuel, Jr.
作者单位:Delft University of Technology
摘要:In this article, we propose a region-based self-triggered control (STC) scheme for nonlinear systems. The state space is partitioned into a finite number of regions, each of which is associated to a uniform interevent time. The controller, at each sampling time instant, checks to which region does the current state belong, and correspondingly decides the next sampling time instant. To derive the regions along with their corresponding interevent times, we use approximations of isochronous manif...
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作者:Qi, Tian; Lu, Renquan; Chen, Jie
作者单位:South China University of Technology; Guangdong University of Technology; Guangdong University of Technology; City University of Hong Kong
摘要:This article studies the consensus problem for continuous-time linear time-invariant multiagent systems, in which the agents exchange information through delayed communication channels in a fixed undirected topology. Our primary objective is to characterize explicitly the delay effect on consensus in the framework of distributed dynamic output feedback control and its implication on the graph network connectivity. For this purpose, we tackle and solve the consensus problem in the spirit of gai...
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作者:Winterer, Leonore; Junges, Sebastian; Wimmer, Ralf; Jansen, Nils; Topcu, Ufuk; Katoen, Joost-Pieter; Becker, Bernd
作者单位:University of Freiburg; University of California System; University of California Berkeley; University of Freiburg; Radboud University Nijmegen; University of Texas System; University of Texas Austin; RWTH Aachen University
摘要:We study synthesis problems with constraints in partially observable Markov decision processes (POMDPs), where the objective is to compute a strategy for an agent that is guaranteed to satisfy certain safety and performance specifications. Verification and strategy synthesis for POMDPs are, however, computationally intractable in general. We alleviate this difficulty by focusing on planning applications and exploiting typical structural properties of such scenarios; for instance, we assume tha...
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作者:Liu, Junwei; Huang, Jie
作者单位:Chinese University of Hong Kong
摘要:The existing results on the leader-following consensus problem for linear discrete-time multiagent systems over jointly connected switching digraphs only apply to systems without exponentially unstable modes. In this article, we will remove this restriction by employing a more general class of distributed control laws which includes a set of weight coefficients. By introducing the average radius for a switched matrix which is determined by the Laplacian matrix of the switching digraph of the m...
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作者:Pruher, Jakub; Karvonen, Toni; Oates, Chris J.; Straka, Ondrej; Sarkka, Simo
作者单位:University of West Bohemia Pilsen; Aalto University; Alan Turing Institute; Newcastle University - UK
摘要:The sigma-point filters, such as the unscented Kalman filter, are popular alternatives to the ubiquitous extended Kalman filter. The classical quadrature rules used in the sigma-point filters are motivated via polynomial approximation of the integrand; however, in the applied context, these assumptions cannot always be justified. As a result, a quadrature error can introduce bias into estimated moments, for which there is no compensatory mechanism in the classical sigma-point filters. This can...
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作者:Gundes, A. N.
作者单位:University of California System; University of California Davis
摘要:In the standard linear, time-invariant feedback system, controllers that achieve diagonal decoupling and closed-loop stability exist if and only if the plant satisfies the diagonal denominator condition or has no coinciding poles and zeros in the region of instability. A simple and systematic decoupling design procedure is presented under each of these conditions. The closed-loop poles can be placed at any desired points, and free parameters are included for satisfying additional design object...
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作者:He, Shaoming; Shin, Hyo-Sang; Tsourdos, Antonios
作者单位:Cranfield University
摘要:This article proposes a novel information-theoretic joint probabilistic data association filter for tracking unknown number of targets. The proposed information-theoretic joint probabilistic data association algorithm is obtained by the minimization of a weighted reverse Kullback-Leibler divergence to approximate the posterior Gaussian mixture probability density function. Theoretical analysis of mean performance and error covariance performance with ideal detection probability is presented to...