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In order to improve spectrum utilization efficiency of Cognitive Radio (CR) systems, it is important for Secondary User (SU) to get knowledge about Primary User(PU)'s behavior when SU exploits opportunity to access spectrum. Radio Environment Database has recently been proposed to provide information about PU. Traditional advanced spectrum database constructed based on spectrum sensing method assumes...
Our bionic eye PTZ requires the tracking target at the central field of view of the camera, which means it is so important to realize the target tracking well in the first step. The particle filter method is famous for its robust tracking performance in cluttered environments. However, most methods are in the mode of moving object and stationary camera and they are not utilizing so well on the bionic...
Pedagogically, feedback in CAPT systems can be improved by focusing on the most critical errors rather than presenting all errors to the users at the same time. This paper presents our work on the use of crowdsourcing for collection of gradations of word-level mispronunciations in non-native English speech. Quality control procedures based on the proposed WorkerRank algorithm (adapted from well-known...
With an increasing number of processing elements being integrated on a single die, networks-on-chip (NoCs) are emerging as a significant contributor to overall chip power consumption. While some solutions have been proposed to reduce this power consumption, none of them can be applied to spatial division multiplexing (SDM)-based NoCs. In this paper, we introduce a method to minimize the power consumption...
This paper proposes design methodology for a modified discrete integral variable structure model following control (MDIVSMFC) approach. More general control situations, whose output is a function of all system states, are considered. The MDIVSMFC approach contains a reference model for specifying control specifications and a modified discrete integral variable structure controller for minimizing errors...
This paper deals with lifetime maximization for energy constrained wireless networks with inter-session network coding. The problem of lifetime maximization is first formulated, and then transformed into a linear programming problem. Using Lagrangian dual decomposition, it is further converted into a dual problem that consists of two subproblems: lifetime optimization and network optimization, and...
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...
This paper design the active suspension considering four connected subsystems- mechanical subsystem, control subsystem, electronic subsystem and hydraulic subsystem. Electrodydraustatics actuator (EHA) which is widely used in Power-By-Wire (PBW) system is applied to active suspension in this article instead of traditional hydraulic valve components. After the modeling,the active suspension fuzzy PID...
In this paper, through deduction and simplification, output impedance of each module and total output impedance of paralleled system with active current sharing control in paralleled operation are derived by measuring the output impedance of each module working standalone with particular connection ways of current sharing bus and calculation. The proposed output impedance derivation method can be...
This paper proposes a universal approach to analyze and determine the stability of multi-module distributed power electronic systems. The modeling of cascaded, paralleled and inter-connected systems was carried out to analyze the affecting factors of the stability. The method was proposed that the stability of systems can be determined by impedance measurement. The most recent results from simulations...
In this paper, the partial element equivalent circuit (PEEC) model is applied to strip-lines analysis in high speed circuit design. The mathematical formulation of the PEEC model is derived. By using thin-film and quasi-static Green's function for strip-line structures, the details of the application of PEEC model to strip-lines are introduced, The computational results for parallel strip-lines are...
This paper presents a general approach to simulate heterogeneity of car-following behaviors in freeway traffic. This is achieved by proposing a new car-following model called general individual based car-following model(GIBM) which takes into account the characteristics of the individual driver. The model parameters are expressed as functions with regard to ldquoaggressiveness levelrdquo of drivers...
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