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Jump random noises exist widely in control systems. In this paper, the guaranteed cost control problem for uncertain systems perturbed by jump random noises is considered. By adopting Poisson process to describe jump random noises, this paper utilize martingale theory to design a controller, which can stabilize such stochastic systems and guarantee the specified cost function has an upper bound.
In this paper, a new PNPN tunnel field-effect transistor with L-shaped gate (LG-PNPN TFET) is proposed and investigated by numerical device simulator bringing significant on-state current enhancement. Higher drive current is achieved at VDD = 1.0V than traditional PNPN TFET because of both the line and point tunneling between the source and N+ pocket. Key parameters like the pocket width and doping...
Considering the factors of environmental adaptability, laying cost and system complexity, the signal fingerprint positioning based on RFID systems has become a better choice of the positioning technology. Online and offline signal matching technology is very important stage for the signal fingerprint positioning. In this paper, we propose a signal matching algorithm in order to further improve the...
This paper presents an approach to supervisory control of a DaVinci surgical robot. At present, such robots are controlled by teleoperation, with dissimilar kinematics of the operator interface vs. the robot. As a result, it can be difficult for the operator to visualize the kinematic restrictions on the robot, particularly for desired extended, precise trajectories, such as circular needle driving...
The use of the Empirical Mode Decomposition (EMD) for nonlinear signal processing has been popularized in the recent years. However, its utility for the processing of multichannel Electromyography (EMG) signals is still limited. This paper investigates the decomposition performance of multichannel EMGs by using the EMD-based approaches, Ensemble EMD (EEMD), Multivariate EMD (MEMD), and Noise-Assisted...
In this paper, we propose a modified Boolean Particle Swarm Optimization velocity mutual (GEBPSO-vm) algorithm to design thinned planar array, and then optimize the side lobe level of thinned planar array. This new algorithm introduces the concept of feedback factor and G inertia weight factor. The feedback factor will generate an additional speed factor, which makes the evolution direction of the...
A multi-body dynamics model was established in Adams. According to the working principle of the electric power steering system(EPS), the linear assistant power curve and control strategy were designed in Matlab/Simulink. And the corresponding fault-tolerant control strategy is designed for the current distribution strategy. The co-simulation was carried out and the result shows that the dual-motor...
It has been shown that the global positioning system (GPS) signal scattering for the like-wise polarization (right-hand to right-hand circular polarization (RR)) yielded 20–30 dB lower level than that for the counter-wise one (left-hand to right-hand circular polarization (LR)), thus the counter-wise polarization was preferred in application to remote sensing by GPS signal scattering. In this paper...
We investigate the ionospheric effect on the global change observation lunar-based synthetic aperture radar (GCOLB-SAR), which offers an unprecedented temporal resolution and spatial coverage. However, the GCOLB-SAR is confronted with a great challenge: an extra-long distance electromagnetic wave propagating through atmospheric and ionospheric effects. The ionospheric effect for the satellite-borne...
This paper presents a multiple scattering in the AIEM model. The derivation is mathematically intricate, though, the final expression is compact and easy for numerical implementation, which only involves series of two-dimensional integration. Some of special cases in backscattering are derived and compared with known analytical model to partly validate the update AIEM model in cross polarization....
This paper presents a comprehensive reappraisal of the scattering, both backscattering and bistatic scattering, and emission of rough soil surface predicted by a well-established theoretical model, the advanced integral equation model (AIEM). Extensive numerical data simulated by approximate and numerically exact models as well as experimental datasets of well-characterized bare soil surfaces were...
Media playout buffer is widely employed by today's streaming media player to cope with short-term network variation and achieve continuous playout. However, the playout buffer inevitably introduces additional latency, affecting mobile live streaming experience. In this paper, we propose a novel adaptive playout buffer management approach to dynamically optimize the buffer latency while to a great...
This paper presents a novel hybrid polishing machine based on the precession polishing process. The machine mainly contains a two degrees of freedom (DOF) serial robot and a three DOF parallel robot with a redundant rotational table on the moving platform. Due to the complex structure and the coupled motion of the parallel robot, dynamics analysis of the parallel robot with three translational DOF...
The modular multilevel converter (MMC) is a competitive candidate for VSC-HVDC systems. However, the conventional HB-MMC can't block dc link fault current because of the freewheeling effect of diodes. To solve this problem, researchers proposed an account of sub-modules (SMs) with DC-fault current clearing capability. This paper summarizes the 2 basic criteria and provides a comprehensive review of...
We develop a general notion of rearrangement for certain metric groups, and prove a Hardy-Littlewood type inequality. Combining this with a characterization of the extreme points of the set of probability measures with bounded densities with respect to a reference measure, we establish a general min-entropy inequality for convolutions. Special attention is paid to the integers where a min-entropy...
An optimal ∞-Rényi entropy power inequality is derived for d-dimensional random vectors. In fact, the authors establish a matrix ∞-EPI analogous to the generalization of the classical EPI established by Zamir and Feder. The result is achieved by demonstrating uniform distributions as extremizers of a certain class of ∞-Rényi entropy inequalities, and then putting forth a new rearrangement inequality...
The research of electric vehicles (EVs) has gained more and more attention in recent years in both industry and academia, and new registrations of EVs increase rapidly, while the long delay at the convenient but crowded charging stations may discourage many drivers from switching to EVs. To address the problems, we propose a novel dynamic pricing policy that allows charging stations to adjust their...
Solid state transformer (SST) has recently attracted much attention due to its great potential of being applied in the future smart grid. Modular structure is commonly employed in SST, which makes it possible to enhance the reliability of the system by introducing redundancy fault-tolerant control (RFC). This paper presents a general design of 10kV/1MW SST with 800V DC bus, and the various RFC strategies...
With the widespread use of solar energy, the grid-connected photovoltaic (PV) systems based on solid state transformer (SST) have considerable prospect. This paper presents the design and demonstration of a three-phase 800-V/10-kV 1-MW SST for grid-connected PV system. The topology of the 10-kV/1-MW SST is designed as a modular structure containing the dual active bridge (DAB) converter and full bridge...
In this paper, we propose a three-dimensional antenna resonator consisting of a pair of inverted L-shaped wires sharing a common part, a continuous metallic ground slab, and a coaxial port loaded with a lumped matching resistor to mimic the input impedance of a rectifier. Such a resonator array can function as an efficient RF energy receiving aperture in the long-distance wireless power transmission...
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