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In this paper, we disclosure a cost-efficiency FFT via hardware-reduction and dynamic current scaling (DCS) schemes in a low-power OFDM modem. These reductions are realized by the pipelined data path modifying and the hardware sharing at two stages. For low power, the operating current is scalable to reduce power consumption, namely DCS. All our works are synthesized and simulated by the TSMC 65nm...
In this paper, we propose a novel framework WSCRec, in which historical information (i.e., execution logs) are utilized to facilitate the process of Web service composition. According to the execution logs of composite services, appropriate services which have been proved to be more reliable and robust and have higher probability to fulfill users' demands are located.
In this paper, a mixed-signal interface for gyroscopes is designed, proving the feasibility of interface with PI controller-based self-oscillation and bandpass sigma delta modulator. According to the simulation results, driving circuit is stably self-excited and sensing circuit functions well as a sigma delta modulator.
In this paper, we propose an enhanced QoS prediction approach to predict the missing QoS values for QoS-based selection. Compared with existing QoS prediction methods, our proposed A Smooth approach has two differences: 1) using A-cosine equation for similarity calculation to remove the impact of different QoS scale, 2) adding a data Smoothing process to improve the prediction accuracy. An extensive...
Maneuver is one of CGF action. For making CGF successfully maneuver in complex battlefield environment, firstly, the model of battlefield environment was established in the way of the rasterization. Second, the CGF model was established according to the maneuver description, and various CGF' behaviors including planning, movement, dodge, pursuit, escape, target track and so on, were considered as...
On the condition that it is difficult for small and medium enterprises (SMEs) to finance from specialized financial institutions such as banks, trade credit has become an important financing channel for SMEs. Based on evolutionary game theory and replicator dynamics equation, this paper studies the evolutionary game process of strategy choosing for bounded rational credit providers and SMEs in the...
Monopulse radar is widely used for its accurate angle measurement. However, when jamming occurs, especially in mainlobe, the performance of the monopulse technique for target estimation deteriorates greatly. In this paper, an improved method for monopulse angular tracking is proposed, which can be divided into two stages. The first one involves a digital beamforming system which is used to suppress...
In this paper, a class of BAM neural networks with impulses is studied on time scales. Some sufficient conditions of global exponential stability of the equilibrium point with impulses are obtained. At last, we give an example to demonstrate the effectiveness of the obtained results.
During the partner selection process in a virtual enterprise, the information about the candidates and their performances are incomplete and uncertain. In this paper, vague sets theory is introduced to give comprehensive consideration to truth membership, false membership and uncertainty membership degree of the candidates to satisfy the decision-maker. On the basis of the agreement index of satisfaction...
In this paper, we construct rate compatible low density parity-check (RC-LDPC) codes from a new perspective. In traditional methods, the columns of parity-check matrix, each of which corresponds to a bit of a codeword, are deleted or added to obtain codes at various rates. Different from them, only the rows of parity-check matrix are operated in our method. Since the number of columns remains unchanged,...
This paper uses multi-conductor transmission line (MTL) to model transformer winding. Firstly, distributed parameters should be computed. According to capacitance, inductance and resistance parameter, transmission line equation can be solved by input terminal impedance method. Thus, voltage distribution in transformer winding can be obtained by solving MTL equation. In this paper, only voltage distribution...
We propose a public key homomorphism in real domain based on a modified ElGamal. It can encrypt addition, subtraction, multiplication, and division operation in real domain. It solves all problems in Xing et al.psilas method based on Lee et alpsilas homomorphism and can be applied in many applications.
Aiming at the difficulty in selecting the maintenance mode for power plant equipment with ration, the fuzzy comprehensive evaluation method based on entropy weight and analytic hierarchy process (AHP) is suggested. It combines entropy weight with AHP for against the casualness and subjectivity in traditional method. With the method, the mode is divided into some layers composed of index factors, and...
Aiming at the difficulty in evaluating the falt risk of the power plant equipment with quantitative method, fuzzy comprehensive evaluation method based on analytic hierarchy process (AHP) is proposed with the help of the theory of fuzzy mathematics. With this method the mathematical model is constructed, and the weight coefficient of each factor is suggested as well as the calculation process. The...
Nowadays X-ray Nondestructive Testing ( NDT ) has played an important role in defect inspection but the X-ray image contains all the information the rays passed by, therefore, it is hard to inspect the inner defect of PCB correctly. The correct inspect is rely on an image reconstruction system. In this study, a X-ray image reconstruction algorism to inspect the defect in a Printed Circuit Board (...
The efficiency of induction motors for electric vehicles must be researched deeply over the entire operating speed region. Up to now, the calculation models of the efficiency of the induction motor for electric vehicles are less accurate over some operating regions, such as owing to omitting the variations of the motor parameters with frequency. The paper puts forward a calculation model of the induction...
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