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This paper investigates the problem of a Takagi–Sugeno (T–S) fuzzy-model-based control of a nonlinear overhead crane system with input delay and actuator saturation. The complex nonlinear dynamic system of the crane is modeled as a three-rule T–S fuzzy model with a saturated input. Based on the fuzzy model, a state-feedback controller is designed so that trajectories of the system that start from...
This paper investigates the problem of stabilization of linear systems with unknown delay. The delay term in the system is represented by an interpolation of state values with constant delays by fuzzy approximation technique, resulting in a fuzzy model describing a large amount of complex systems focused on the unknown delay, where the delay can be constant and time-varying with or without known delay...
With the booming development of C2C e-commerce platforms such as Taobao, and facing the employment pressure and the huge market demand, many college students have started to run on line business. College students set up online shop as a new approach for own a business, brings opportunities for contemporary college students, but at the same time, there are risks and straits. This article analyzes the...
This paper presents a novel error concealment method for AMR-WB codec, using excitation search constraint at the encoder and a linear prediction of the pitch and gains of the adaptive codebook and the innovative codebook at the decoder to enhance speech quality after a frame erasure. The experimental results demonstrate that the proposed method achieves performance improvement over the existing methods.
In this paper, the delay-dependent non-fragile robust H∞ control for a class of fuzzy descriptor time-delay systems with norm-bounded parameter uncertainties is investigated. First, a new delay-dependent non-fragile H∞ stabilization method is proposed via a state feedback fuzzy controller, which guarantees the closed-loop nominal system to be regular, impulse free, asymptotically stable. Then, sufficient...
Ultra wide-band (UWB) is an appealing technology for wireless body area networks (WBANs). The paper presents the numerical analysis of the subject-specificity of the radio channel in UWB-WBANs adopting the finite difference time domain technique. The analysis has been performed in the frequency range 3–10 GHz considering nine homogeneous digital phantoms of different size and gender. A two-pole Debye...
In this paper, the delay-dependent non-fragile H∞ control for a class of fuzzy descriptor time-delay systems is investigated. A non-fragile controller via state feedback is proposed, which guarantees the closed-loop system to be regular, impulse free, asymptotically stable and satisfies the H∞-norm constrain. The sufficient conditions for the solvability of this controller design problem are presented...
When locating the rub-impact source of rotating machines by acoustic emission technology, precise time-difference of arrival is always not available to calculate the faults location due to the deteriorated signal correlation relationship among different sensors. This is caused by both the dispersion phenomenon since the acoustic emission signal includes various waveform modes while each type of waveform...
The notions of the (strongly) practical stability in probability and in the pth mean, are introduced for some large-scale stochastic systems with Markovian jump parameters and time-varying delays. Sufficient conditions on such practical properties are obtained by using the comparison principle and the Lyapunov function methods.
The monitoring system in coal mine has special requirements for data query. Analysis shows that routing in the system should have four features: data-centric routing, supporting query of geographic position, low delay and high reliability of data transmission, robustness of topology. A mobile agent based routing algorithm with mobile sink and a dynamical weight metric which is derived from its current...
In thus paper, we mainly discuss the methods of the simulation and pre-design on the common signal and power integrity problems on the PCB of the Simulator. The condition of self-resonance, crosstalk and delay on the PCB can be improved with the help of the Ansoft software such as SIWAVE and DESIGNER.
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