This paper presents implementations of recovering the color subcarrier to demodulate the chroma signal used in digital video decoder *** signal orthogonal decomposition method is used for obtaining the phase estimatio...
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This paper presents implementations of recovering the color subcarrier to demodulate the chroma signal used in digital video decoder *** signal orthogonal decomposition method is used for obtaining the phase estimation of the color *** the basis of this,the frequency offset can be estimated by the gradient of the phase estimations of two *** obtained phase and frequency offset of color burst are sent to the NCO ('Numeric Controlled Oscillator)for recovering the local color subcarrier for chroma *** proposed method is compared with the conventional close loop and open loop *** numeric simulations and the decoding picture prove that the proposed method is effective and practical.
Providing Quality of Service(QoS)guarantees and mobility support for Internet devices has become a hot research topic in the Next Generation Internet technologies,since mobile computing is getting more *** Inter'n...
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Providing Quality of Service(QoS)guarantees and mobility support for Internet devices has become a hot research topic in the Next Generation Internet technologies,since mobile computing is getting more *** Inter'net Engineering Task Force(IETF) has developed ReSerVation Protocol(RSVP)and Mobile IPv6 to provide IPv6 QoS and mobility support, ***,an integrated and efficient interworking of these two mechanisms is still not present. In this paper,we propose a model based on flow transparent to solve this *** examine this desired model and illustrate how it overcomes the problem with the existing approach and achieves a more efficient RSVP and Mobile IPv6 *** analysis show that the proposed scheme works well in mobile environments.
In order to meet the needs of automatic target recognition(ATR),Infrared target image has been used more frequently than *** the transmission question for Infrared target image through Data Link is hard to *** the goo...
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In order to meet the needs of automatic target recognition(ATR),Infrared target image has been used more frequently than *** the transmission question for Infrared target image through Data Link is hard to *** the good real-time performance,Image compression based on region of interest(ROI)has been one of the hot issues in the field of image compression and ***,there is not a fixed model for region of interest automatically detected.A new stepwise approaching and recurring threshold search algorithm based on 2D(two-dimension)maximum entropy principle was proposed for ROI automatically detected while a compressed scheme based on ROI was *** experimental study was also conducted after the compressed scheme realized in the frame of *** was proved that the method of ROI automatic detected not only can meet real-time requirements,but also is reliable,effective and significant in applications.
In this paper we propose a new algorithm in solving constrained problem--Adaptive Quantum-behaved Particle Swarm Optimization(AQPSO).The AQPSO outperforms QPSO and PSO in global search ability and local search ability...
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In this paper we propose a new algorithm in solving constrained problem--Adaptive Quantum-behaved Particle Swarm Optimization(AQPSO).The AQPSO outperforms QPSO and PSO in global search ability and local search ability,because the adaptive method is more approximate to the learning process of social organism with high-level swarm intelligence and can make the population evolve *** adopt a non-stationary multi-stage assignment penalty in solving constrained problem to improve the convergence and gain more accurate *** approach is tested on several accredited benchmark functions and the experiment results show much advantage of AQPSO to QPSO and the traditional PSO.
Telecom billing system is one of the core systems of tclecom ***,customers'demand for Real-time Processing becomes higher and higher. Parallel processing is usually used to process complex issues,promote efficienc...
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Telecom billing system is one of the core systems of tclecom ***,customers'demand for Real-time Processing becomes higher and higher. Parallel processing is usually used to process complex issues,promote efficiency,save time and *** this paper,a billing system model based on parallel processing is put forward,which can solve the problems and can be expanded,improved and be more widely used in the telecom *** parallel methods are discussed in the model,such as synchronization,loading balance,pipelining,etc.
Information is one of the key components in Intelligent Transportation Systems(ITS).Heterogeneity is inevitable because the concerned systems are often developed by autonomous *** is a new method describing conception...
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Information is one of the key components in Intelligent Transportation Systems(ITS).Heterogeneity is inevitable because the concerned systems are often developed by autonomous *** is a new method describing conception-level architecture and semantic *** this paper,we study solving the semantic integration of ITS by ***,we bring forward an ontology system for ITS of China, which includes basic ontology,domain ontology and applied *** we propose the architecture for semantic integration of ITS,which provides with transparent service based on semantic for consumers so that it forms a virtual homogeneous environment for the *** research shows that ontology is a good tool to integrate traffic information at semantic level.
Because of some problems existing in text clustering such as the high-dimensional sparse text data,poor efficiency of unsupervised feature selection,and defects existing in classical clustering methods and so on,a nov...
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Because of some problems existing in text clustering such as the high-dimensional sparse text data,poor efficiency of unsupervised feature selection,and defects existing in classical clustering methods and so on,a novel text clustering flow model(TCFM)and a effective text clustering approach called DSOM-FS-FCM according to TCFM are proposed. DSOM-FS-FCM fully combines the dynamic self-organizing maps(DSOM)neural network,features selection(FS)and fuzzy C-means(FCM)clustering. Experimental results indicate that DSOM-FS-FCM clustering outperforms traditional clustering methods such as K-means,and the precision is better than DSOM-FCM and DSOM clustering.
As the development of information technology and advanced manufacturing technology,manufacturing Grid has become a *** resource management is an important content of manufacturing *** analyzed the advantages of collab...
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As the development of information technology and advanced manufacturing technology,manufacturing Grid has become a *** resource management is an important content of manufacturing *** analyzed the advantages of collaborative purchasing for enterprises,as a new application of Multi-Agent technology,the paper proposed the model of Multi-Agent-enable collaborative purchasing alliance and an automated negotiation framework in collaborative purchasing ***,the paper implements a prototype system for collaborative purchasing based on Multi-Agent and then discusses the deployment of collaborative purchasing Grid services on our Manufacturing Enterprise Grid Support Platform (MEGridSP).
In a fermentation process several variables,such as biomass concentration are conventionally determined by off-line laboratory analysis,i.e.,the process control is unavailable to industrial production in time just bec...
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In a fermentation process several variables,such as biomass concentration are conventionally determined by off-line laboratory analysis,i.e.,the process control is unavailable to industrial production in time just because of time delay that often makes the analysis results *** the ability simple in application and quick in convergence of Particle Swarm Optimization(PSO)algorithm and the high generalization ability of Support Vector Machine(SVM), selecting the appropriate state variables,a dynamic time-varying model has been *** the model and algorithm to per-estimate some biochemical state variables which can not be measured on-line,and to optimize some operational *** is proved that the method is efficiency through the practical application of Glumatic Acid fermentation process.
Orthogonal Frequency Division Multiplex(OFDM)has been applied broadly in wideband wireless communication systems because it has ability in anti frequency selective *** basic principles of OFDM are described and then t...
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Orthogonal Frequency Division Multiplex(OFDM)has been applied broadly in wideband wireless communication systems because it has ability in anti frequency selective *** basic principles of OFDM are described and then the schemes of transmitter and receiver arc given in *** to the system architecture analysis,it builds the OFDM system model and simulations model through Matlab *** different computer simulation results and BER can be got at different channel conditions and modulation modes.A specific example is given and amore in totalistic result can be got from this example. The simulation results show that OFDM system has a good quality in anti channel interference.
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