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This paper studies impulsive control of a class of uncertain systems with small time delay. Some robust stability criteria for impulsive delay differential system are presented, based on which the impulsive control law can be easily designed. Our technique depends on Lyapunovpsilas direct method and comparison principle. Finally, we present the estimate of the upper bound of the uncertain constant...
In this paper, we develop a coarse-to-fine method for the registration of the reference and target images, involving the 2D rigid transformation. The proposed method consists of four steps: utilizing Harris corner detector to extract the feature points in the reference and target images; corresponding these points by a novel feature points match algorithm based on voting strategy, which efficiently...
The robust designs for cellular neural/nonlinear network (CNN) templates are one of the important issues for the practical applications of CNNs. This paper establishes two new theorems for robust designs of a kind of uncoupled CNNs. The theorems provide parameter inequalities to determine parameter intervals for implementing prescribed image processing functions, respectively. Three examples for detecting...
The performance of adaptive beamforming degrades dramatically in the presence of steering vector uncertainties. In this paper, the robust adaptive beamforming with ellipsoidal steering vector uncertainty set is investigated. It belongs to the class of diagonal loading approaches. In order to select the loading level, the ellipsoidal uncertainty set is transformed into a spherical one first. Then the...
The traditional transform domain watermarking schemes are insecure for publicity characteristic of transform itself. Aimming at this, a secret discrete fractional sine transform (DFRST) domain audio watermarking scheme is proposed in this paper. The undeterminate angle of DFRST is utilized and the security of the proposed scheme is enhanced using chaotic sequences. Experimental results show the proposed...
The design of global sliding mode control (GSMC) based on reaching law is studied and applied to the controller design of buck converter in this paper. The simulation results verify the validation of the global sliding mode controller with reaching law.
Signcryption is a cryptographic primitive that performs digital signature and public key encryption simultaneously, at a lower computational costs and communication overheads than the signature-then-encryption approach. Recently, two identity-based threshold signcryption schemes [12], [27] have been proposed by combining the concepts of identity-based threshold signature and signcryption together...
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