In neutral point indirectly grounded systems, phase-to-ground fault is putting new demands on fault diagnosis technology. Information fusion is applied to detect the phase-to-ground fault, which integrates several sou...
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In neutral point indirectly grounded systems, phase-to-ground fault is putting new demands on fault diagnosis technology. Information fusion is applied to detect the phase-to-ground fault, which integrates several sources of information, including line current, line voltage, zero sequence current and voltage, and quintic harmonic wave component. This method is testified through the simulation of Matlab. Simulation results show that the precision and reliability of the detection has been greatly increased.
The paper addresses the problem of robust output feedback controller design with a guaranteed cost and parameter dependent Lyapunov function quadratic stability for linear continuous time polytopic systems. The propos...
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The magnetic fields of a linear induction motor (LIM) with cage-type secondary are analyzed using finite element method (FEM) according to the variation of the moving secondary position. Thus thrust and attraction for...
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The structured singular value, μ, can be used to analyse the robust performance characteristics of control systems with respect to the potential perturbations in plant dynamics, μ can also be used in control system ...
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This Letter presents a novel VQ-based digital image watermarking method. By modifying the conventional GLA algorithm, a codeword-labeled codebook is first generated. Each input image block is then reconstructed by the...
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This Letter presents a novel VQ-based digital image watermarking method. By modifying the conventional GLA algorithm, a codeword-labeled codebook is first generated. Each input image block is then reconstructed by the nearest codeword whose label is equal to the watermark bit. The watermark extraction can be performed blindly. Simulation results show that the proposed method is robust to JPEG compression, vector quantization (VQ) compression and some spatial-domain processing operations.
This paper describes an implementation of the 9th-order Bessel filter using a new linear operational transconductance amplifier (OTA). To improve the linearity of the OTA, we employ a mobility compensation circuit. Th...
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The quasi-distributed strain monitoring system based on optical fiber grating in large structure was presented. The dual sensitivity problem to temperature and strain was solved using the system. The method enables to...
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The quasi-distributed strain monitoring system based on optical fiber grating in large structure was presented. The dual sensitivity problem to temperature and strain was solved using the system. The method enables to demodulate the sensing signal more accurately and effectively.
Models of plant behavior are required to use formal methods of manufacturing execution systems (MES) application development. We present a manufacturing oriented modular approach for designing such models. The approac...
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We propose a pairwise codebook partitioning technique for robust watermarking based on vector quantization. We group codewords in pairs by similarity. One is labeled '0' and the other labeled '1'. For ...
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We propose a pairwise codebook partitioning technique for robust watermarking based on vector quantization. We group codewords in pairs by similarity. One is labeled '0' and the other labeled '1'. For each image block, we first find the pair that owns the nearest codeword. The watermark is then embedded by selecting from the pair the codeword whose label equals the corresponding watermark bit. The extraction process can be performed blindly. Simulation results show that the proposed method can survive JPEG compression, high-quality VQ compression and some common signal processing operations.
The paper addresses the problem of robust output feedback controller design with a guaranteed cost and quadratic, and parameter dependent Lyapunov function quadratic stability for linear continuous time affine systems...
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The paper addresses the problem of robust output feedback controller design with a guaranteed cost and quadratic, and parameter dependent Lyapunov function quadratic stability for linear continuous time affine systems. The proposed design methods lead to a non-iterative LMI based algorithm. Numerical examples are given to illustrate the design procedure.
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