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The multicast problem in multi-channel multi-radio wireless mesh networks has received much attention recently. Most recent studies on this problem focus on improving the network throughput. However, many real-world applications require routing algorithms to achieve low-delay and low-loss. In this paper, we tackle the problem of constructing a robust minimum-cost multicast tree that tolerates link...
Characteristics classification of remainders in aerospace electronic equipments plays a significant role in safety and reliability of an aerospace system. It's difficult to analyze and classify characteristics of the remainders, because several factors, such as the structure and the material of remainders, influence the characteristic analysis and classification. Therefore, a method to analyze and...
A novel hybrid method is proposed for solving electromagnetic scattering problem of three-dimensional perfect electric conducting (PEC) targets with electrically large size. In this work, we use the equivalent dipole-moment method (EDM) to accelerate the near region interactions in the multilevel adaptive cross approximation (MLACA) via solving the surface integral equation (SIE). Compared with the...
This letter focuses on the projective synchronization control of delayed recurrent neural networks with Markovian jumping parameters. The jumping parameters are modeled as continuous-time finite-state Markov chain. Based on the Lyapunov functional method and linear matrix inequality (LMI) approach, a novel control method is given. Simulations with matlab verify the effectiveness of the methods.
In the context of endogenous network formation, we study strategic interaction among players within k-neighborhood. Based on the myopic best response rule, players choose action and establish links with other players by unilaterally investing in costly pair wise links in the evolution of networks. First, we characterize the equilibrium networks and describe the impact of the link cost on the equilibrium...
Media streaming is the killer application in current Internet. There are a variety of media streaming techniques in today's Internet, such as RTSP, HTTP live streaming and Adobe Flash etc. HTTP live streaming (HLS) is a popular and most promising technique as the protocol is based on the Internet workhorse protocol i.e. HTTP, and supported by HTML5 and mobile platform. Most of these media streaming...
A novel circuit architecture for configuration bitstream compression based on JTAG is proposed. The circuit decompresses and compresses bitstream while FPGA is configured and performs readback accordingly. The compression and decompression operations are implemented dynamically by a concise hardware architecture within the framework of IEEE standard 1149.1. Run Length Encode/Decode (RLE/D) algorithm...
This paper presents an interface readout circuit for Micromachined capacitive accelerometer. An analog closed-loop switched-capacitor (SC) interface circuit is proposed to achieve high linearity and large dynamic range of the sensor. Correlated double sampling (CDS) technique is used in SC circuits to minimize offset and 1/f noise of the amplifier. The stability of the close-loop system is improved...
The CCNx reference implementation uses XML and ccnb to describe and encode the Interest and Data packet, but currently most security communication uses CMS based on ASN.1 and BER to characterize the protocol packet. Therefore, in order to be compatible with these existing crypto technology and products, we propose to reformat the Interest and Data packet with CMS. In addition, BER encoding causes...
This paper concentrates on the mixed byproduct gases scheduling (MBGS) problem in iron and steel enterprises. The units in a typical MBGS system are categorized into five types, whose features are discussed. Then a MILP mathematical model is built to minimize the excess and the shortage of gas distribution. A hybrid algorithm combined gene algorithm (GA) and linear programming (LP) is presented based...
In this paper, the AC impedance analysis is used to explore the optimal discharging frequency for a Li-ion battery. Experiments indicate that the optimal discharging frequency is at the minimum AC impedance frequency fZmin for a conventional pulse current (PC) discharging This PC discharging strategy improves the discharging time, the discharging efficiency, and the minimum rising temperature of the...
In this paper, a cascaded multilevel inverter with selective harmonic elimination and battery-balanced discharge function (CMI-SHE & BBD) is proposed. The input of each level of cascaded multilevel inverter circuit is directly connected to a battery. Duty cycle of switch of each level is controlled to contain the ac output voltage with minimize total harmonic distortion. Additionally, the battery-balanced...
A new direct method for calculating the electrostatic force of electroadhesive robots generated by interdigital electrodes is presented. Here, series expansion is employed to express the spatial potential, and point matching method is used in dealing with some boundary conditions. The attraction force is calculated using the Maxwell stress tensor formula. The accuracy of this method is verified through...
This paper presents an innovative mechanical design of a reconfigurable miniature throwable robot. The robot keeps in spherical shape to buffer shock and to protect inner sub-systems in falling, and it transforms to a two-wheeled mobile robot in surveillance via wireless control. Two generations of the robot have been constructed, and details in mechanical design, principle of transformation and a...
It is quite important for Device-to-Device (D2D) communication to make decision in selecting which part of the celluar radio resource, namely uplink (UL) resource or downlink (DL) resource, to be reused for the purpose of higher system capacity. In this paper, we propose an interference control scheme in DL mode to limit the base station's (BS) interference to D2D user equipments (DUEs) by selecting...
Three critical cascading faults with nearly 2000 WTGs (Wind Turbine Generator) tripped took place in China on early 2011, from which the reactive power and voltage control issues for large wind farms are spotlighted. Some key factors inducing the cascading trip are surveyed by this paper firstly, including WTGs voltage distribution, dynamic reactive power reserves and coordination of tight-coupled...
In China, wind power industry has undergone great development in the last few years, while several cascading faults happened in 2011, reveal that terminal voltage of wind turbine generator (WTG) should be monitored and controlled. Furthermore WTGs and static var compensators/generators (SVC/SVGs) need to be coordinated to provide voltage service for the whole network. In this paper, a network model...
This paper proposed a novel inductive coupling power transfer (ICPT) topology to improve the power factor, output voltage regulation and efficiency. The proposed ICPT is mainly constructed by a voltage controllable power factor corrector (VC-PFC) and a LLC resonant circuit. Additionally, the series compensation and series-parallel compensation are used in the primary and the secondary sides of the...
The existence of remnant particles negatively impacts the reliability of aerospace electronic equipments. The universal method to detect remnant particles is particle impact noise detection (PIND). Random vibration can be introduced to the PIND system to improve the detecting performance, and it can also provide acoustic and acceleration signals. In this paper, a new feature extraction method for...
In this paper, an instantaneous maximum power point tracking (MPPT) control is first adopted to achieve fast tracking response for the photovoltaic (PV) power generation system. Then an instantaneous real power tracking control is proposed to overcome the dilemma of the inherent double line frequency ripple without adding an additional circuit so that one can replace the large electrolytic capacitor...
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