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The traditional 3D human motion capture methods require operators to wear tracking sensors on their body. However, these devices would bring operators much inconvenience. Currently, vision based motion capture systems provide us an alternative approach for motion capture technology. In this paper, based on human kinematics and function approximation technique (FAT), a novel method is presented for...
The Geomagic Touch X haptic device made by SensAble Technologies has been widely used for various applications, e.g., video games, medical training, and telerobot operation. It provides feedback forces and thus greatly enhances their telepresence user experience together with virtual reality techniques. Motion commands sent from Touch X to a remote device are used for position control in teleoperation...
In this paper, a neural network (NN) tracking controller is developed for robot manipulators. To deal with the unknown dynamics of the robot systems, radial basis function neural network (RBFNN) is integrated into the adaptive control design to compensate for the uncertainties. In order to achieve the predefined transient tracking performance, time-varied barrier Lyapunov functions (BLFs) are synthesized...
The interaction between STATCOM and voltage-source inverter (VSI) may cause instability in an islanded micro-grid. Impedance models of storage battery power convert system (PCS) and cascaded multilevel static synchronous compensator (STATCOM) are established based on which the interaction mechanism between PCS and STATCOM is studied. Using Nyquist stability criterion and admittance ratio analysis,...
In network virtualization, virtual network embedding is mostly static, which maps each virtual link onto a single predictable path, thus offering a significant advantage for adversaries to eavesdrop or intercept a certain virtual network. However, existing works on multipath embedding just focus on performance and survivability, instead of maximizing the routing unpredictability to avoid link attacks...
This paper proposed a novel direct power control (DPC) scheme of a three-phase pulse width-modulated rectifier, which solves the problem that classical DPC can't adjust the active power and reactive power in a balanced way. Compared to the classical DPC, the proposed scheme considers the balance of the active and reactive power. When the difference between the active and reactive power tracking errors...
Ultra-Wideband (UWB) Radio Frequency (RF) PD location technique is a new method, which is based on diamond shape sensor array PD detection and time-delay function. In this paper, an UWB RF PD location system is designed, which works in the bandwidth of 2GHz-8GHz. The time-delay error has been brought down to 0.3ns. but the locating error of some PDs is larger than 30cm. To make clear this problem...
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