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This paper considers the generalized projective synchronization problem for an array of non-identical coupled chaotic systems with ring connections. By using the direct design method, the control laws, which transform the error system into a nonlinear system with special antisymmetric structure, are designed to realize the generalized projective synchronization. Some simple stability criteria are...
This work investigates the consensus problem of a group of nonlinear agents over a fast-switching network. The communications between agents are bidirectional and time delay exists. The topology, which specifies the communications, is assumed to be switched within a finite set of topologies, reflecting a practical fast-varying network environment. Based on the Lyapunov functional stability theory...
This paper solves the problem of time synchronization in wireless sensor networks (WSNs) with noise. The consensus based approach is an improved average value based protocol. This algorithm, compared with the existing consensus-based synchronization approach, has the advantage of being totally distributed, asynchronous and robust to process and measurement noise. The main idea of this algorithm is...
This paper focuses on the problem of cluster synchronization of a class of complex dynamical networks. Based on impulsive control theory and a comparison theorem, generic criteria for cluster synchronization are derived. It is shown that these criteria provide a novel and effective control approach to synchronize a general dynamical network to a cluster synchronization manifold by exposing the relationship...
This paper considers the global convergence of a class of nonlinear dynamical networks, and the subsystems are discrete time pendulum-like systems. Different from most of the existing results, two kinds of interconnections are considered in view of the fact that the subsystems of networks may have more than one kind of interconnection between each other. The Kalman-Yakubovich-Popov (KYP) lemma and...
Synchronization of high-order discrete-time complex networks with time-varying delays and undirected communication topologies are investigated. Firstly, synchronization problems are converted into asymptotic stability ones, and the necessary and sufficient conditions for synchronization are presented. Based on the linear matrix inequality (LMI), sufficient conditions for synchronization are proposed...
In this paper, a fractional-order sliding mode controller is proposed to realize the finite-time stabilization of fractional order (FO) system. The FO systems are perturbed by model uncertainties and external disturbances. First, a new fractional non-singular terminal sliding surface with desired dynamics is proposed. Subsequently, on the basis of Lyapunov function and finite-time control theory,...
Pertinent to the multi-shaft synchronous control precision of printing press with shaft-less drive, the artificial potential field algorithm in the flocking motion control method is introduced and the traditional artificial potential field control strategy is given. This control strategy allows the rapid tracking of target value. However, in the traditional artificial potential field control arithmetic,...
Time synchronization is very important for a Time Division Multiple Access (TDMA) Wireless Sensor Networks (WSNs). In this paper, we introduce a new method of time synchronization for WSNs based on the simulated annealing algorithm which is endowed with the search process of a time-varying and can effectively avoid falling into the local minimum and finally tends to the global optimum. Errors between...
The Boolean network is a powerful tool in describing, analyzing, and simulating the cellular networks. In this paper, we investigate stability of given subsets (or set stability) for Boolean networks which includes synchronization problem as a special case. First of all, based on the semi-tensor product of matrices and the algebraic expression of Boolean networks, we derive some necessary and sufficient...
In this paper, we address attitude consensus problem of multiple spacecraft in the presence of dynamic uncertainties and bounded constant time delays. The agents are assumed to interact on strongly connected graphs. The consensus objective is achieved via the construction of the reference systems, where the quaternion-based nonlinear inner coupling of the attitudes is utilized as the reference control...
This paper studies the synchronization problem of multi-agent systems with nonlinear dynamics in mean square. It is supposed that the measurement of relative-state is disturbed. For the nonlinear multi-agent systems, we show that the conventional consensus protocols are robust against the measurement noises which are dependent to the relative-state. Simulations are provided to demonstrate the theoretical...
In this paper, aiming at solving the synchronous problem of multi-finger dexterous hand, we introduced the iterative learning control (ILC) algorithm into the control of the system's synchronous coupling error to ensure the synchronization between finger joints on the premise that the system have good performance. In addition, we introduce a Lyapunov-like composite energy function to analyse the stability...
In the application of the multi-beam laser accumulation for high energy, it is a key technology to guide the lasers into a micro area precisely and quickly. This paper proposes a laser spot identify and laser track sync control method, with the micro-vision feedback, parameterizing the laser spot based on the spot's counter characteristics. At the same time, the method is optimized in identifying...
The gear shift control of 2-speed AMT (Automated Manual Transmission) of pure electric vehicle is investigated to improve the shift quality. During the inertia phase of the gear shift process, a linear-quadratic optimal controller is designed for minimizing the clutch friction work, vehicle jerk and ensuring the transmission output torque change smoothly. The optimal controller is a time-varying linear...
The purpose of this paper is to verify that the method proposed in [1] is still feasible when the nonlinear terms of the error system are some piecewise linear functions containing explicit error state variables. The synchronization of Chua's circuits is considered as an example to illustrate the validity of the method. With the aid of the stability estimation and some numerical simulation results,...
This work investigates the cooperative controller design problem for multi-agent systems in the presence of actuator failures. We first provide an actuator fault detection algorithm. Then, a robust fault-tolerant protocol is presented to achieve the synchronization and tracking control of multi-agent systems. The controllers are locally distributed in the sense that the controller designed for each...
This paper presents a new way to transmit and retrieve an information signal via chaotic systems based on shape synchronization. In contrast to existing schema with chaotic synchronization, the scheme is adopted for the purpose of faster synchronization and high security. Firstly, the drive signals are synthesized chaotic signal instead of drive variables in order to high security. Secondly, the drive...
This paper investigates the asymptotic synchronization for the directed and undirected dynamical networks with different dimensional nodes and nonlinearly coupled functions. Besides, the nodes in the network model discussed here are dissipatively coupled and similar and their coupling coefficients between different nodes permit negative. For this kind of network model, the synchronization manifold...
The state estimation of nonlinear coupled complex dynamical networks with time delay coupling is studied in this paper. The state estimation controllers are designed by using proportional control approach. A sufficient condition for state estimation is derived by using Lyapunov stability theory. Finally, we take the scale-free network as the network topology and the Lorenz chaotic system as the node...
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