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This paper considers the impulsive H∞ control problem for a class of discrete-time Markovian jump delay systems for the first time. Some sufficient conditions are given in terms of matrix inequalities. A numerical example is presented to show the effectiveness of the theoretical results.
This paper investigates the problem of mean square finite-time passivity for discrete-time Markov jump neural networks with time delays and stochastic perturbations. In the measurement equation, a class of sensor nonlinearities are considered, which cover the standard Lipschitz condition as a special one. A sufficient mean square finite-time boundedness condition is established based on Lyapunov-like...
With the extensive application of train communication network, more and more data transmission delay and interference packet loss occurred, which causes great threat to train safety and stable running. It is necessary to study the transmission and distribution characteristics of the network control delay of high-speed EMUs, and take effective measures to reduce the impact of time delay on train control...
The problem of variable structure guaranteed cost control for discrete uncertain networked systems with time delay has been considered in this paper. Based on the Lyapunov stability theorem, by introducing a discrete compensator, a novel sliding mode manifold that can compensate time delay has been designed. Then, by using linear matrix inequalities approach, a guaranteed cost controller is designed...
This paper concerns the Discrete time Sliding Mode Control (DSMC) of complex system with input delay, the synthesized control law will be tested on a four tank hydraulic system. A predictor in discrete time is introduced to convert the original system with input delay to an equivalent system without the explicit appearance of time delay and makes the control problem solvable. Simulation studies show...
In this paper, the problem of finite-time stabilization of stochastic delay reaction-diffusion systems (SDRDSs) is investigated. The finite-time controller is designed without using the sign function. Then, applying the stochastic finite-time stability lemma, utilizing Lyapunov-Krasoviskii functional method and Itö formula, a sufficient condition is derived which guarantees the finite-time stabilization...
In this paper we provide a review for the time domain analysis of the normalized timing error dynamics of a wireless receiver Early-Late tracking loop (A loop that controls the timing of a pseudo-noise code that is locally generated in the receiver). This review shows that the timing error dynamics modelling is cumbersome and can be simplified by linearizing the tracking loop. The linearization assumption...
This paper addresses output feedback stabilization of fully actuated rigid-body attitude dynamics in the presence of unknown point-wise time-delay in the input torque. Specifically, rate-gyros are unavailable here and only the attitude state represented by the unit quaternion is assumed to be measured. In the absence of time-delay, it is well known that linear asymptotically stabilizing control laws...
One of the most active domains of Control saturated (bounded) control in time delay systems — meets on interesting field of applications in aircraft control and stabilisation. While control signals (both for thrust and attitude) are naturally bounded, time delay is used for modelling various uncertainties as the feedback control chain of the SAS (stability augmentation system) for the fast motion...
End-to-end delay is an important QoS parameter in wireless sensor networks. The term end-to-end delay is the total amount of time taken for transmission of data to reach the destination. The parameter which causes end-to-end time delay in the wireless sensor network includes length of the path i.e. the number of repeaters and the congestion along the route. In this paper, main focus is end-to-end...
Online delay-sensitive games with fast interactive actions, like fighting games (FTG) and sports games, require the synchronization of coupled multi-player actions. With network impairments, action commands from other players can be delayed or lost, leading to compromised real-time perception of these games. In contrast to slower strategy games, online fighting and sports games studied in this paper...
Gene regulation studies reveal unknown biological functions in disease progression. As more time-course datasets become available, interactions among the regulators and their associated target genes may better describe the evolution of gene regulatory networks. Currently in many research studies, interaction delay is not considered. Such delay is embedded in the network due to the intrinsic temporal...
Today's electronic devices move drastically towards high speed design feature. The traditional D-flip flop is no longer suitable for designing shift registers because of its low-speed performance. Many different types of shift registers, such as Universal Shift registers, Serial In Serial Out, Serial In Parallel Out, Parallel In Parallel Out and Parallel In Serial Out have been developed. Also, there...
The PID controller parameters can be adjusted in such a manner that it gives the desired frequency response and the results are found using the Bode's integral formula in order to adjust the slope of the Nyquist curve in a desired manner. The same idea is applied for plants with time delay. The same has also been done in a new approach. The delay term is approximated as a transfer function using Padé...
Frequent episode mining has been proposed as a data mining task with the goal of recovering sequential patterns from temporal data sequences. While several episode mining approaches have been proposed in the last fifteen years, most of the developed techniques have not been evaluated on a common benchmark data set, limiting the insights gained from experimental evaluations. In particular, it is unclear...
This paper addresses the controller design problem of time delay systems using discrete sliding mode control technique. In this, an optimal sliding surface is chosen as a linear function of the system states and the coefficients of sliding surface are computed by minimizing the quadratic performance index. A delay ahead predictor is used to handle system's time delay and plant-model uncertainties...
In this paper, the tracking control problem is investigated for a class of uncertain single-input single-output (SISO) linear time-invariant (LTI) systems. In a practical control system, uncertainties include parametric uncertainties, unmodeled dynamics, time delay and disturbances, which are too many and complicated to observe or know. By taking this into account, a new tracking controller design...
This paper is concerned with the H;∞ filtering for sampled-data systems. First, an event-based data packet processor is introduced to release the sampled measurement outputs only if an event condition is violated. As a result, the communication resources can be significantly saved while the desired system performance can be preserved. Second, the resulting filtering error system is modeled as an interval...
In this paper, we address the problem of controlling a system over an unreliable UDP-like network that is affected by time-varying delays and randomly occurring packet losses. A major challenge of this setup is that the controller just has uncertain information about the control inputs actually applied by the actuator. The key idea of this work is to model the uncertain control inputs by random variables,...
For the H∞ control problem of preview and delayed systems, a solvability condition and a control law are established in the output feedback setting. By employing the analytic solution of the corresponding operator Riccati equation, the solvability condition is characterized by maximal roots of transcendental equations. Furthermore it is shown that the control law for the general problem is constructed...
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