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In this paper, a distributed guidance law at the kinematic level is developed for coordinated maneuvering of networked fully-actuated autonomous surface vehicles with a virtual leader that moves along a parameterized path. We design the distributed guidance law based on the constant bearing guidance scheme and a path maneuvering design. We prove that the error signals in the closed-loop guidance system...
This paper presents a guidance law design for synchronized path-following of multiple under-actuated unmanned surface vehicles (USVs) in the presence of unknown sideslip. The sideslip can be caused by wind, waves, and ocean currents, or arise when following a curved path. An adaptive guidance law is proposed based on a line-of-sight (LOS) guidance principle and a low-frequency learning scheme. By...
This paper addresses adaptive synchronization control problem of networked robot systems characterized by Lagrangian function, where exact dynamic models are unknown and velocity measurements are unavailable. A class of distributed observers, comprised of multiple dynamic variables and static variables, are established based on not imposing a priori restriction on the boundness of the observer states...
This paper proposes a coordinated voltage control of synchronous condensers using wide-area measurements. The control is able to determine a coordinated control scheme of synchronous condensers to maintain stable post-fault voltages. A voltage control model with synchronous condensers has been established using wide-area measurements. By applying Networked predictive control (NPC), the time delay...
This paper proposes an explicit adaptive algorithm to solve the problem of heterogeneous dynamic synchronization of multi-agent uncertain systems. Different from the existing works, the proposed algorithm depends on less control parameters and achieves zero synchronization error between the agents of heterogeneous uncertain dynamic networks and virtual target. By introducing appropriate assumptions,...
This paper presents the 10 Gb/s Ethernet Phy Forward Error Correction (FEC) sub-layer novel VLSI structure with the following 2 ideas: one is the frame boundary detecting methodology and the other is the fast frame synchronous structure. The first method increases the frame synchronizing speed by fully optimizing the candidate start position shift algorithm to accelerate the frame synchronization...
This letter investigates the adaptive function projective synchronization of a new chaotic system with disturbances and uncertain parameters. By Lyapunov stability theory, the adaptive controller and the adaptive laws for unknown parameters are derived to achieve the adaptive function projective synchronization of chaotic system. Numerical simulations are presented to illustrate the effectiveness...
Based on nonlinear feedback control method and Lyapunov stability theory, the nonlinear controller and the adaptive laws for unknown parameters of the response system are obtained to achieve the synchronization of the new coupled four-dimensional hyperchaotic Chen system with disturbances. Numerical simulation results are presented to illustrate the effectiveness of this method.
The method for determining the chirp matched parameter has been proposed by studying the variation of the total gain of OPCPA with the pump optical chirped parameters and the corresponding relationship of signal optical and pump optical wavelengths. Taking nonlinear BBO crystal as a typical example, the effects of chirp match and synchronization jitter on gain in optical parametric chirped pulse amplification...
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