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To deal with the estimation problem for systems subject to constraints while the corresponding noise processes are not completely known, the adaptive constraint-filtering method is proposed in this paper. The constraint-filtering method developed previously can accommodate the constraint in the filtering process for a nonlinear dynamic system. However, the assumption that the modelling noise and the...
In this paper, we present a novel DCSK-based coding encryption method of DMCP information security. Firstly the DMCP information is got by proprietor or authority as watermarks. Then encrypt key is generated by DMpsilas data. To encrypt watermarkspsila information, we apply the chaos sequence. Then we embed the encrypted sequence into the image based on wavelet approximation zero-tree theory. As a...
This paper investigates the delay-dependent exponential stability problem of Takagi-Sugeno (TS) fuzzy Hopfield neural networks (HNNs) with time-varying delay. Based on a fuzzy Lyapunov-Krasovskii functional (LKF), some delay-dependent stability criteria guaranteeing the exponential stability of the fuzzy HNNs are devised by taking the relationship between the terms in the Leibniz-Newton formula into...
The issue of the scheduling and its stability for multi-input and multi-output networked control systems (NCSs) was researched under communication constraints. A discrete time-variant mathematic model integrating control and scheduling was developed based on the research of the communication sequence notion. Then asymptotical stability of the system was analyzed by using the 2nd Lyapunov method, and...
In order to recover the incomplete data on the WEB page, the paper proposed a new approach based on rough set to reduce the redundant attributes, discretize the continuous attributes and fill up the incomplete data. According to indiscernible relationship, discernible vector were defined and used the discernible vector addition rule to reduce attributes. And then, depending on the concept of super-club...
The progress of super-resolution usually involves computing the parameters (e.g. the registration and blur parameters) of a generating imaging model, and obtaining an estimated SR image by minimizing a cost function. In this paper, a high-resolution image, the registration parameters and PSF width will be optimized simultaneously using scaled conjugate gradient. A pre-registration method is introduced...
Global representation and various properties of the rigid body attitude, i.e., SO(3), are investigated in this paper. The representations, Euler-Lagrange equation, and Hamilton's equation on the second bundle of SO(3) are formally given. For its important role in nonlinear control theory, the global representation of Lie bracket on T ((SO(3))m ?? Rn), a general tangent bundle of the product space...
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