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Showing papers in "Systems & Control Letters in 2014"


Journal ArticleDOI
TL;DR: The aim of this paper is to address consensus and bipartite consensus for a group of homogeneous agents, under the assumption that their mutual interactions can be described by a weighted, signed, connected and structurally balanced communication graph.

341 citations


Journal ArticleDOI
TL;DR: A novel discretized Lyapunov functional method is introduced to utilize the upper bound of the derivative of the delays no matter how large it is, which leads to a better result on the allowed upper boundOf the delays to ensure containment control.

195 citations


Journal ArticleDOI
TL;DR: It is shown that every level set of the infinite horizon optimal value function is contained in the basin of attraction of the asymptotically stable equilibrium for sufficiently large optimization horizon N .

124 citations


Journal ArticleDOI
TL;DR: The results of the paper are sufficient conditions which guarantee a suboptimal H ∞ level of consensus between observers with sampled interconnections over a network with directed topology involving continuous time observers.

122 citations


Journal ArticleDOI
TL;DR: This work presents a form of extremum seeking in which the unknown function being mini- mized enters the system's dynamics as the argument of a cosine or sine term, thereby guaranteeing known bounds on update rates and control efforts.

110 citations


Journal ArticleDOI
TL;DR: The new theory enables us to observe the system state less frequently but still to be able to design the feedback control based on the discrete-time state observations to stabilize the given hybrid SDEs in the sense of mean-square exponential stability.

105 citations


Journal ArticleDOI
TL;DR: It is shown that the celebrated Perron–Frobenius theorem can be proved concisely by a duality-based argument and a new LMI is derived for the H ∞ performance analysis where the variable corresponding to the Lyapunov matrix is allowed to be non-symmetric.

102 citations


Journal ArticleDOI
TL;DR: An iterative learning control scheme that can be applied to multi-agent systems to perform consensus tracking under the fixed communication topology is proposed and optimal controller gain design methods are proposed in the sense that the λ -norm of tracking error converges at the fastest rate, which imposes a tightest bounding function for the actual tracking error in the κ -norm analysis framework.

89 citations


Journal ArticleDOI
TL;DR: A mixed time-driven and state-dependent switching strategy is proposed that guarantees an average dwell time even when all subsystems are unstable and could refrain frequent switches commonly observed in min-switching based designs.

88 citations


Journal ArticleDOI
TL;DR: An adaptive online parameter identification is proposed for linear single-input-single-output (SISO) time-delay systems to simultaneously estimate the unknown time- delay and other parameters and a novel adaptive law is developed, which can be proved under the conventional persistent excitation condition.

83 citations


Journal ArticleDOI
TL;DR: This work presents the fundamental results of contraction theory in an intrinsic, coordinate-free setting, with the presentation highlighting the underlying geometric foundation of contraction Theory and the resulting stability properties.

Journal ArticleDOI
TL;DR: The solution bounds for time-delay systems via delay-dependent Lyapunov-Krasovskii methods are dealt with, showing that an additional bound for solutions is needed for the first time-interval, where t<τ(t), both in the continuous and in the discrete time.

Journal ArticleDOI
TL;DR: The exact analytical solution to a Goursat PDE system governing the kernels of a backstepping-based boundary control law that stabilizes a constant-coefficient 2×2 system of first-order hyperbolic linear PDEs is found.

Journal ArticleDOI
TL;DR: It is shown that under the condition that the pinning joint communication topology contains a directed spanning tree, the sufficient criteria established can not only ensure the observation error to be globally asymptotically stable, but also guarantee the consensus of the multi-agent system to be solved asymPTotically.

Journal ArticleDOI
TL;DR: It is proved that when the undirected graph is connected or the balanced digraph is weakly connected, consensus of the network can be realized and a distributed asymptotic regulator is proposed to regulate the overall system to the equilibrium.

Journal ArticleDOI
TL;DR: An improved delay-dependent stability criterion is proposed such that the interconnection system is asymptotically stable, which is also proved to guarantee the asymPTotic stability of the system based on the direct Lyapunov method in another perspective.

Journal ArticleDOI
TL;DR: A novel model is developed to describe the possible multiple random transmission delays and data packet losses by employing a group of Bernoulli distributed random variables and an optimal linear filter in the linear minimum variance sense is proposed by using the orthogonal projection approach.

Journal ArticleDOI
TL;DR: In this article, the authors proposed a distributed bearing-only formation control law that ensures local exponential or finite-time stability in a cyclic multi-vehicle formation with angle constraints, where each vehicle can only measure the local bearings of its neighbors.

Journal ArticleDOI
TL;DR: An effective distributed protocol with an adaptive finite-level uniform quantized strategy, under which consensus among agents is guaranteed with weaker communication conditions, and it fits well into the digital network framework.

Journal ArticleDOI
TL;DR: By applying the homogeneous theory for stability analysis, it is proven that all the states of the followers can converge to that of the leader in finite time under the authors' proposed observers.

Journal ArticleDOI
TL;DR: An alternative approach for obtaining a converse Lyapunov theorem for discrete-time systems is presented and, as a by-product, tractable construction of polyhedral LyAPunov functions for linear systems is attained.

Journal ArticleDOI
TL;DR: It is proved that, for any directed communication graph that contains a spanning tree with the root node being the leader agent, the proposed control law solves the leader-following consensus problem.

Journal ArticleDOI
TL;DR: A consensus protocol based on the low gain solution of a parametric algebraic Riccati equation (ARE) and not use the precise information of the amount of time-varying delay is designed.

Journal ArticleDOI
TL;DR: This work enlarges the class of stochastic hybrid systems admitting finite, symbolic models by showing that randomly switched stochastics systems, satisfying some incremental stability assumption, admit such models.

Journal ArticleDOI
TL;DR: This paper investigates a kind of disturbance decoupling problems (DDPs) for switched Boolean control networks (BCNs) via the semi-tensor product of matrices, and designs all possible state feedback controllers for the disturbance-independent output decoupled problem.

Journal ArticleDOI
TL;DR: The proposed controller integrates two fundamental actions, homogenization and consensus, concurrently, and aligns agent trajectories, asymptotically governed by the common reference dynamics, to consensus through network cooperation.

Journal ArticleDOI
TL;DR: Using tools from complex approximation theory, the existence of parameter-independent open-loop controls that steer the zero initial state of an ensemble of linear systems uniformly to a prescribed family of terminal states is proved.

Journal ArticleDOI
TL;DR: It is shown that it is possible to define five (equivalent) notions of moments, i.e., one from a complex “s-domain” point of view, two using Krylov projections and two from a time-domain perspective, and classes of parameterized reduced order models that achieve moment matching are obtained.

Journal ArticleDOI
Xu Zhang1, Yan Lin1
TL;DR: It is proved that the states of the nonlinear time-delay systems can be regulated to the origin while all the closed loop signals are globally bounded.

Journal ArticleDOI
TL;DR: This work investigates the problem of designing a fault detection filter for discrete-time nonlinear systems usingℋ − / ℋ ∞ -optimization that simultaneously improves robustness against disturbances and enhances sensitivity to faults using Hamilton–Jacobi inequalities.