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This paper presents a high-throughput deblocking filter accelerator which can process one macro block (MB) within 48 cycles for H.264/AVC/SVC. This innovation is achieved by considering both luminance and chrominance data together in arranging the filtering schedule. Cooperating with the filtering schedule, the proposed quadruple-filter-based architecture can simultaneously execute filtering of four...
In the information processing done by biological organisms, stochastic resonance (SR) can enhance sensitivity by superimposing proper noise upon undetectable weak signals to detect that signal. In tactile sensing, since noise inevitably becomes mixed by contact with an object and a sensor's movement on it, sensing accuracy can be increased by SR. In the present research, we perform a series of psychophysical...
In this paper, an 1-bit second-order low-power ΔΣ modulator for pressure sensor applications is presented. The modulator utilizes correlated double-sampling (CDS) in order to reduce the flicker (1/f) noise. Due to the 1-bit output, the feedback DAC is inherently linear. The modulator is designed with 0.35-μm CMOS process. Measured signal-to-noise and distortion ratio (SNDR) is 86dB (14bits), while...
In this paper we present a calibration technique for sigma-delta analog-to-digital converters (ΣΔADC) in which highspeed, low-resolution flash subADCs are used. The calibration technique as such is mainly targeting calibration of the flash subADC, but we also study how the correction depends on where in the ΣΔ modulator the calibration signals are applied. It is shown that the calibration technique...
The simple genetic algorithm is introduced at first. On the basis of many strategies to selector operator, crossover operator and mutation operator, the advanced genetic algorithm sufficiently considers the global optimum by generating new individuals in each generation, which guarantees the population's multiplicity and accelerates the evolved speed. The optimal design of permanent magnet generator...
A critical problem facing the mechanical design community is that of bridging the gap between mechanical CAD data and finite element models.In this paper, We developed a 2D finite element analysis (FEA) data creating system in which the data is generated from DXF (drawing interchange file) data, which is one of the most famous CAD data. The system is proposed and the usefulness of the system is clarified...
The traditional Chinese medicine industry is a field that has unique advantage and national characteristics in the industrial field of our country. The evaluation of the enterprise core competence plays an important role in the rapid development of the traditional Chinese medicine industry. In this paper, a comprehensive evaluation model of the Chinese medicine enterprise core competence is proposed...
An ac voltage regulating system of doubly Salient Electro-magnetic Generator has been performed in this paper. In order to maintain the high voltage 360VDC stable, the dual boost converter with fixed frequency PWM controlled is adopted. Three-phase dual buck inverter was adopted to output 115VAC/400Hz. the generating system configuration, control strategy of dual boost converter and three-phase dual...
In order to improve the security and performance of authentication protocol in manufacturing grid, identity-based authentication protocol under standard model is constructed. Combining with the environment of manufacturing grid, this protocol can work under escrow and non-escrow models and different trust domains model. By introducing pseudo random function set, new authentication protocol realizes...
Excitation system plays a key role in realistic simulation and analysis of the dynamic performance of electrical power systems to a large extent. Therefore, it is desire to obtain the real parameter of the excitation system in order to study the dynamic performance of power systems. This paper presents a practical technique to address the excitation system identification. The measurement was performed...
The direct-drive wind power generation system based on permanent magnet DC motor is researched, and the converter models of generator side and power network side is analyzed in detail. The system consists of a permanent magnet DC motor- generator set, a rectifier of high power factor, a boost converter and a full power inverter. The practical wind speed is simulated by the change of motor speed which...
A testing device for torque extraction generator based on IPC is presented in this paper. It may be automatic and manual operating. Its hardware adopts industry PC, multifunction cards, communication card, kinds of sensor and electric equipment. The brushless dc motor is adopted as the drive electrical machinery. Its software is Windows XP and LabView technology. It can measure voltage, current, power,...
The generation of electricity based in the renewable energy sources has becoming a more significant in the last years because of continues increase on energy demand and fossil oil energy dependence, additional to preoccupation of environmental. Wind and PV power systems to generate electricity in The Republic of Cape Verde are analyzed in this paper. The power electronics converters and electrical...
A real wind power generation system is given in this paper. SVM control strategy and vector control is applied for generator side converter and doubly fed induction generator respectively. First the mathematical models of the wind turbine rotor, drive train, generator side converter are described. Then the control strategy of generator side converter system is given in detail. Finally the simulation...
By replacing conventional mechanical bearing of wind power generator with magnetic bearing, the friction loss can be reduced obviously and the efficiency of power generation can be improved. Bearing capacity of radial magnetic bearing (RMB) is determined through analyzing the radial loads of wind power generator, and upon this, the structure of radial magnetic bearing is designed. Then the electromagnetic...
As heat source for the solar powered ejector and compression refrigeration system, Collector-thermal Storage's design selection and performance directly affect operation of refrigeration system. By setting up a mathematical model of the solar energy Collector-thermal Storage and its components, the paper calculates optimum collector area under given condition of the cooling capacity inTaiyuan, and...
Fountain codes provide an efficient way to transfer information over erasure channels like Internet. LT codes are the first codes fully realizing the digital fountain concept. The key to make LT codes work well is the degree distribution used in the encoding procedure, which is sampled to determine the degree of each encoding symbol. This paper propose a revised robust soliton distribution which has...
The satisfiability problem (SAT) is shown to be the first decision NP-complete problem. It is central in complexity theory. A CNF formula usually contains an interesting number of symmetries. That is, the formula remains invariant under some variable permutations. Such permutations are the symmetries of the formula, their elimination can lead to make a short proof for a satisfiability proof procedure...
We give new pseudorandom generators for regular read-once branching programs of small width. A branching program is regular if the in-degree of every vertex in it is either 0 or 2. For every width d and length n, our pseudorandom generator uses a seed of length O((log d + log log n + log(1/ϵ)) log n) to produce n bits that cannot be distinguished from a uniformly random string by any regular width...
The Coin Problem is the following problem: a coin is given, which lands on head with probability either 1/2 + β or 1/2 - β. We are given the outcome of n independent tosses of this coin, and the goal is to guess which way the coin is biased, and to answer correctly with probability ≥ 2/3. When our computational model is unrestricted, the majority function is optimal, and succeeds when β ≥ c/√n for...
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