Echo State Network is one pioneering recurrent neural network with the core structure of a randomly generated and unchangeable reservoir. This paper provides a Condition prediction model of flue gas turbine by applyin...
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In order to improve the efficiency and precision of short-term traffic flow forecast, for the traditional BP neural network that has such shortcomings as slow convergent speed and easy convergence to the local minimum...
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This paper proposed a new approach to the stabilization analysis and H ∞ performance for a class of discrete nonlinear systems that are represented by a Takagi-Sugeno (T-S) fuzzy model. The main result given here con...
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ISBN:
(纸本)9787894631046
This paper proposed a new approach to the stabilization analysis and H ∞ performance for a class of discrete nonlinear systems that are represented by a Takagi-Sugeno (T-S) fuzzy model. The main result given here concerns their H∞ controller design based on a relaxed approach in which both PDC-like control laws and nonquadratic Lyapunov functions are used. New relaxed conditions and linear matrix inequality-based design methods are proposed that allow outperforming previous results found in the literature. Finally, an example is given to demonstrate the efficiency of the proposed approaches.
This paper deals with global synchronization in arrays of coupled Lur'e systems with nonlinear delayed coupling. Together with Krasovskii-Lyapunov functional and Kronecker product technique, two novel synchronizat...
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ISBN:
(纸本)9787894631046
This paper deals with global synchronization in arrays of coupled Lur'e systems with nonlinear delayed coupling. Together with Krasovskii-Lyapunov functional and Kronecker product technique, two novel synchronization criteria are presented in terms of linear matrix inequalities(LMIs) based on convex combination, in which the conditions are heavily dependent on the bounds of time delay and its derivative. Through employing LMI in Matlab Toolbox and adjusting some matrix parameters in the derived results, we can realize the designing and applications of the coupled systems. The effectiveness of the proposed methods can be demonstrated by one numerical example with simulations.
In this paper a novel 3D shape measurement technique based on color fringe projection is proposed to solve the spectrum aliasing and phase unwrapping issues existed in Fourier transform profilometry. Set the RG compon...
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In this paper a novel 3D shape measurement technique based on color fringe projection is proposed to solve the spectrum aliasing and phase unwrapping issues existed in Fourier transform profilometry. Set the RG compon...
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In this paper a novel 3D shape measurement technique based on color fringe projection is proposed to solve the spectrum aliasing and phase unwrapping issues existed in Fourier transform profilometry. Set the RG components of the color fringe to two different frequencies of sinusoidal pattern and the B component to the average value of R or G component. Then project the pattern to the object. Separate these RGB components of the captured color pattern and use our method to process these three gray patterns. By using the proposed method, the background and high frequency noises can be eliminated during FTP process, also the accurate unwrapped phase which contains the height information can be got by using two frequencies of wrapped phase to unwrap the phase. Only one frame color pattern is needed to get the 3D information of an object. Experiment results show that the 3D information of an object can be obtained rapidly and accurately using the proposed method. And also the object can be measured dynamically.
A new accurate phase-shifting error compensating algorithm for phase-measuring profilometry is proposed and proved. In this error detecting algorithm, we use three adjacent phase points for research object, approximat...
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A new accurate phase-shifting error compensating algorithm for phase-measuring profilometry is proposed and proved. In this error detecting algorithm, we use three adjacent phase points for research object, approximately suppose that the sinusoidal fringe projection to the plate, the phase differences between adjacent pixels are equal. Then we put the phase shift error into the original algorithm for error compensation. Simulation results show the inhibitory effect of the errors after using the new algorithm for error compensation. Lastly we use the new algorithm for three-dimensional reconstruction of physical measurement. The final effect image shows obviously that the new compensation algorithm is better than the original. So this error extracting algorithm can effectively improve the accuracy of three-dimensional measurement.
A new accurate phase-shifting error compensating algorithm for phase-measuring profilometry is proposed and proved. In this error detecting algorithm, we use three adjacent phase points for research object, approximat...
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This paper considers the problem of controller design fornetworked impulsive control systems(NICSs) with transmission delayand packet dropouts. The parameter uncertainty is assumed to be norm bounded. The problem to b...
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This paper considers the problem of controller design fornetworked impulsive control systems(NICSs) with transmission delayand packet dropouts. The parameter uncertainty is assumed to be norm bounded. The problem to be addressed is the design of impulsive controllers such that the exponential stability of the resulting closed-loop system and asymptotical stability for admissible uncertainties are guaranteed. By applying Lyapunov function theory and Halanay Lemma, impulsive time-delay controller is derived through solving LMIs. Numerical examples are provided to demonstrate the application of the proposed method.
A stereo reconstruction algorithm is proposed, which combines techniques of local edge detection, stereo matching and binocular vision. Firstly, the left and right images of the object are taken by calibrated binocula...
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A stereo reconstruction algorithm is proposed, which combines techniques of local edge detection, stereo matching and binocular vision. Firstly, the left and right images of the object are taken by calibrated binocular cameras. Then, in rectified matching images, the closed local edge is formed surrounding each pixel by Prewitt edge operator in order to construct an adaptive window, in which cost aggregation is calculated by normalized cross-correlation-coefficient. Next, local winner-take-all optimization is used to obtain disparity, and image smoothing technique is introduced to reduce matching errors. Finally, points cloud of the object is produced based on calibration information of binocular cameras and results of stereo matching. The experimental results show that the proposed algorithm can overcome impacts of real environment on reconstruction system and successfully achieves smooth and vivid 3D points cloud models of different real objects with high automation degree.
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