This paper presents an adaptive backstepping sliding mode tracking control method for underactuated unmanned surface vehicle. The controller is designed by combining and technology. virtual law used to replace the strategy of position error, transformed into velocity control, which can effectively avoid input saturation singular value problem existing in design traditional law. neural shunt mod...

An adaptive mixed finite element method (AMFEM) is designed to guarantee an error reduction, also known as saturation property: after each refinement step, the error for the fine mesh is strictly smaller than the error for the coarse mesh up to oscillation terms. This error reduction property is established here for the Raviart–Thomas finite element method with a reduction factor ρ < 1 uniforml...

The adaptive sliding-mode observer has been widely used to estimate the rotor flux and rotor speed in inverter-fed sensorless induction motor drives. However, the technique requires setting a priori the sliding-mode observer constants and also knowledge of the induction motor parameters. This particular aspect can cause significant errors in the estimation of the rotor speed used in sensorless ...

In this paper, an adaptive incremental neural network (INN) fixed-time tracking control scheme based on composite learning is investigated for robot systems under input saturation. Firstly, by integrating the method into INN to cope with inevitable dynamic uncertainty, a novel updating law of NN weights designed, which does not need satisfy stringent persistent excitation (PE) conditions. addit...

II We have developed laser sources ofsodium-resonance radiation based on the sumfrequency mixing ofNd:YAG laser radiation. The sources are suitable for generating a fluorescence spot in the earth's mesospheric sodium layer for use in adaptive optics compensation. Taking into account the sodium fluorescence lifetime, Doppler broadening, hyperfine structUre, radiative saturation, optical pumping,...

5. Hubel, D., and Wiesel, T.: Receptive fields and functional architecture of monkey striate cortex, J. Physiol. 195: 215, 1968. 6. Hurvich, L., and Jameson, D.: Some quantitative aspects of an opponent-color theory. II. Brightness, saturation, and hue in normal and dichromatic vision, J. Opt. Soc. Am. 45: 602, 1955. 7. Brindley, G. S.: Effects on colour vision of adaptation to very bright ligh...

In this paper, the problems of semi-global leaderless consensus for continuous-time multi-agent systems under input saturation restraints are investigated. We consider the leaderless consensus problems under fixed undirected communication topology. New necessary synthesis conditions are established for achieving semi-global leaderless consensus via the distributed adaptive protocols, which is d...

Multiscale Edge Detection via Normal Changes p. 22 Extending Adjacency to Fuzzy Sets for Coping with Imprecise Image Objects p. 30 Adaptive Selection of Image Classifiers p. 38 Classification Reliability and Its Use in Multi-classifier Systems p. 46 Color Linear Model p. 54 A Computational Approach to Color Illusions p. 62 Improved Textured Images Segmentation Using an Energy Functional p. 70 C...

In this paper, we propose a new mesh-typed NoC architecture which aims at enhancing network performance while keeping implementation cost feasible. The result is a diagonally-linked mesh (DMesh) NoC that uses wormhole packet switching technique. Together with the proposed adaptive quasiminimal routing algorithm, DMesh improves average latency and saturation traffic load. In addition, logic synt...