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Many exist localization algorithms are unbiased estimators. However, the estimation performance presents biased feature in the real location systems. On the other hand, many biased location estimators show advantages that unbiased estimators can not achieve, e.g., robust to the noise, more accurate estimation and low complexity. In this paper, we propose a biased localization estimator and a hybrid...
Present an anti-geometric attacks video watermarking scheme based on normalization of pseudo-Zernike moment. Employing the RST invariant property of improved Pseudo-Zernike moment magnitudes, the watermark image is embedded into the centre circle area of I frame in the spatial domain after reconstruction. Because of much high similarity between video frames, an optimal moment set is selected on the...
The contradiction of speediness and stability is a difficult problem in face of control theory study and control system design at all times. The paper takes time-variable and great-inertia controlled object and its algebra equivalence system as example open out and explain inherence relation produced by character of time-variable to control index. The sufficiency condition of robust Luenberger function...
Consistent hashing-based DHT networks have an inherent load balancing problem. The problem becomes more severe in heterogeneous networks with nonuniform and time-varying popular files. Existing DHT load balancing algorithms are mainly focused on the issues caused by node heterogeneity. To deal with skewed lookups, this paper presents an elastic routing table (ERT) mechanism for query load balancing,...
Our paper presents an explicit infinite-dimensional Luenberger type observer for a class of vibrating systems. Further numerical investigation is undertaken for the observer based on a rotating Euler elastic beam system, including the eigenvalue distribution of the error system and the robustness of the observer. By using the finite element method numerical simulations are carried out to illustrate...
Dynamic characteristic of supercritical unit is complex. Its control technology is an important research task. This paper presents a mathematical model of coordinated control system controlled objects. For control characteristic of supercritical unit, design a generalized intelligent coordinated control system which made up of classical control, modern control, intelligence control and special measure...
The proof of stability for an observer is very important for it can be used in engineering application. Adopting state-space method to describe the synthetic coordinated control system that is combined with state feedback based on incremental function observer (IFO-KDeltax) merging PID controller and plus intelligent control, the sufficient condition of control system stabilization is given by mathematical...
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