Wang Kechao, Wang Tiantian, Su Xiaohong, Ma Peijun
With the increasing of software requirements, software is becoming larger and larger. It becomes an important problem to maintain the software. Thus understanding the program exactly, rapidly and comprehensively plays an important role. This paper has presented the related research of program comprehension, summarized six typical program comprehension strategies and compared these strategies.
{"title":"Overview of Program Comprehension","authors":"Wang Kechao, Wang Tiantian, Su Xiaohong, Ma Peijun","doi":"10.1109/ICCSEE.2012.285","DOIUrl":"https://doi.org/10.1109/ICCSEE.2012.285","url":null,"abstract":"With the increasing of software requirements, software is becoming larger and larger. It becomes an important problem to maintain the software. Thus understanding the program exactly, rapidly and comprehensively plays an important role. This paper has presented the related research of program comprehension, summarized six typical program comprehension strategies and compared these strategies.","PeriodicalId":132465,"journal":{"name":"2012 International Conference on Computer Science and Electronics Engineering","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126891165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Estimation the shape and position of the objects is an important subject in ground penetrating radar (GPR). Migration method in domain of seismic techniques is effective to locate and reshape the objects. Kirchoff migration method is based on electromagnetic wave equation. It is an accurate calculation method. Kirchoff migration method has widely adaptabilities with different horizontal and vertical velocity of electromagnetic wave, and the computation time is acceptable. In this paper, migration imaging principle is been introduced at first, then Kirchoff migration method is been discussed. By dealing with GPR simulation and experiment image, it shows that the Kirchoff Migration method used in GPR imaging is effectiveness and stability.
{"title":"Kirchoff Migration Algorithm for Ground Penetrating Radar Data","authors":"Q. Yao, Wang Qi-fu","doi":"10.1109/ICCSEE.2012.256","DOIUrl":"https://doi.org/10.1109/ICCSEE.2012.256","url":null,"abstract":"Estimation the shape and position of the objects is an important subject in ground penetrating radar (GPR). Migration method in domain of seismic techniques is effective to locate and reshape the objects. Kirchoff migration method is based on electromagnetic wave equation. It is an accurate calculation method. Kirchoff migration method has widely adaptabilities with different horizontal and vertical velocity of electromagnetic wave, and the computation time is acceptable. In this paper, migration imaging principle is been introduced at first, then Kirchoff migration method is been discussed. By dealing with GPR simulation and experiment image, it shows that the Kirchoff Migration method used in GPR imaging is effectiveness and stability.","PeriodicalId":132465,"journal":{"name":"2012 International Conference on Computer Science and Electronics Engineering","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129104528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper, an integrated loading model of ultrasonic transducer is established to explain the phenomenon that different tissue loads have different effect on resonance frequency of ultrasonic transducer. Mechanical loss of ultrasonic transducer is taken into consideration in the model and mass-spring-damping tissue model and contact impedance between ultrasonic transducer and tissues are given. Experiments show that this model is accurate enough to analyze loading characteristic of ultrasonic transducer. Effect of tissue elastic module on resonance frequency of ultrasonic transducer is studied. Results show that soft tissue with low elastic module make resonance frequency of ultrasonic transducer lower than unloaded condition, while tissue with large elastic module make resonance frequency larger.
{"title":"Loading Mechanism of Ultrasonic Biomedical Transducer","authors":"Ying Chen","doi":"10.1109/ICCSEE.2012.258","DOIUrl":"https://doi.org/10.1109/ICCSEE.2012.258","url":null,"abstract":"In this paper, an integrated loading model of ultrasonic transducer is established to explain the phenomenon that different tissue loads have different effect on resonance frequency of ultrasonic transducer. Mechanical loss of ultrasonic transducer is taken into consideration in the model and mass-spring-damping tissue model and contact impedance between ultrasonic transducer and tissues are given. Experiments show that this model is accurate enough to analyze loading characteristic of ultrasonic transducer. Effect of tissue elastic module on resonance frequency of ultrasonic transducer is studied. Results show that soft tissue with low elastic module make resonance frequency of ultrasonic transducer lower than unloaded condition, while tissue with large elastic module make resonance frequency larger.","PeriodicalId":132465,"journal":{"name":"2012 International Conference on Computer Science and Electronics Engineering","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123378424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A method of de-noising multi-channel EEG signals which combines the principle component analysis (PCA) with density estimation blind source separation (DEBSS) is proposed in this paper. Based on removing high frequency noise in wavelet analysis, the PCA algorithm is used to process the EEG signals to reduce the data dimension. Then, the DEBSS algorithm is adapted to separate the EEG signals which data dimension has been reduced. The main interference is identified and removed by using cross-correlation coefficient and related non-linear parameters to analyze the independent components. Finally, through reconstructing the remaining independent components, the EEG signals without main interference will be obtained. The experimental results show that this method can eliminate the main interference of multi-channel EEG signals rapidly and effectively, meanwhile, it is stable and has strong scalability.
{"title":"A Method of Denoising Multi-channel EEG Signals Fast Based on PCA and DEBSS Algorithm","authors":"Dong-Ho Kang, Luo Zhi-zeng","doi":"10.1109/ICCSEE.2012.105","DOIUrl":"https://doi.org/10.1109/ICCSEE.2012.105","url":null,"abstract":"A method of de-noising multi-channel EEG signals which combines the principle component analysis (PCA) with density estimation blind source separation (DEBSS) is proposed in this paper. Based on removing high frequency noise in wavelet analysis, the PCA algorithm is used to process the EEG signals to reduce the data dimension. Then, the DEBSS algorithm is adapted to separate the EEG signals which data dimension has been reduced. The main interference is identified and removed by using cross-correlation coefficient and related non-linear parameters to analyze the independent components. Finally, through reconstructing the remaining independent components, the EEG signals without main interference will be obtained. The experimental results show that this method can eliminate the main interference of multi-channel EEG signals rapidly and effectively, meanwhile, it is stable and has strong scalability.","PeriodicalId":132465,"journal":{"name":"2012 International Conference on Computer Science and Electronics Engineering","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123619992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Regarding to the importance of e-government affair system (EGAS), how to model it has been widely discussed for a long time. Although metamodel, the abstract model of system, plays a crucial role in the process of modeling, the research about metamodels of EGAS is nearly blank. Therefore, based on the knowledge of roles and multi-agents, this article manages to metamodel EGAS. The aim is to put forward a general guideline to fill in the gaps and rich the system modeling theory. It can also provide references to model EGAS and improve the intelligence and flexibility of system construction.
{"title":"Research on Metamodeling Process of E-government Affair System","authors":"Jishan Liu, N. Zhang, Xin Kong, Y. Gu","doi":"10.1109/ICCSEE.2012.344","DOIUrl":"https://doi.org/10.1109/ICCSEE.2012.344","url":null,"abstract":"Regarding to the importance of e-government affair system (EGAS), how to model it has been widely discussed for a long time. Although metamodel, the abstract model of system, plays a crucial role in the process of modeling, the research about metamodels of EGAS is nearly blank. Therefore, based on the knowledge of roles and multi-agents, this article manages to metamodel EGAS. The aim is to put forward a general guideline to fill in the gaps and rich the system modeling theory. It can also provide references to model EGAS and improve the intelligence and flexibility of system construction.","PeriodicalId":132465,"journal":{"name":"2012 International Conference on Computer Science and Electronics Engineering","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114206714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cloud computing has been a study hot spot of computer network technology at home and abroad, since it was proposed in 2007. GIS raster data has amount of data, so when a large number of users access, traditional file mapping and network database, etc will have problems such as server overload, lower sharing efficiency. Cloud computing is undoubtedly the best ideas to solve storage and display of huge amount of raster data. At present, managing and display raster data on the public cloud platform have developed methods and techniques, in which Google Earth is one of the best. But using public cloud to manage massive raster data within the enterprise, it will bring security issues such as leakage of confidential data, so we need to build private clouds under LAN environment for enterprises. This paper, first, discussed the internal private cloud framework and the design of distributed file system under the LAN environment, and analyzed how to storage image pyramids for raster data in the distributed file system, and then proposed the Map/Reduce technology based on G/S mode, to achieve load balancing strategy for data download. Studies show that the private cloud framework in this paper, the grid download ability continuously improved, as the data nodes increases, it can meet internal management and shared purpose of raster data, the research results have a theoretical value and practical significance.
{"title":"Research for GIS Raster Data Storage and Display under the FrameWork of Private Cloud","authors":"Jun Chen, Huajun Wang, Hanyu Lu","doi":"10.1109/ICCSEE.2012.57","DOIUrl":"https://doi.org/10.1109/ICCSEE.2012.57","url":null,"abstract":"Cloud computing has been a study hot spot of computer network technology at home and abroad, since it was proposed in 2007. GIS raster data has amount of data, so when a large number of users access, traditional file mapping and network database, etc will have problems such as server overload, lower sharing efficiency. Cloud computing is undoubtedly the best ideas to solve storage and display of huge amount of raster data. At present, managing and display raster data on the public cloud platform have developed methods and techniques, in which Google Earth is one of the best. But using public cloud to manage massive raster data within the enterprise, it will bring security issues such as leakage of confidential data, so we need to build private clouds under LAN environment for enterprises. This paper, first, discussed the internal private cloud framework and the design of distributed file system under the LAN environment, and analyzed how to storage image pyramids for raster data in the distributed file system, and then proposed the Map/Reduce technology based on G/S mode, to achieve load balancing strategy for data download. Studies show that the private cloud framework in this paper, the grid download ability continuously improved, as the data nodes increases, it can meet internal management and shared purpose of raster data, the research results have a theoretical value and practical significance.","PeriodicalId":132465,"journal":{"name":"2012 International Conference on Computer Science and Electronics Engineering","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114536882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In order to actualize the fast synchronization of carrier in high dynamic, A New union carrier synchronization algorithm based on FFT and PLL (Phase Locked Loop) is proposed. The basic idea is that firstly get a coarse estimation by using the peak of a period gram and then gain an accurate estimation by using a new interpolation formula about the two lines beside the pea. Next, using the frequency as guide frequency, to control the frequency of the sine signal produced by the NCO (Numerically Controlled Oscillator). And finally achieve the goal of carrier synchronization through the adaptive algorithm of the PLL. With the method of real-time and precise estimation of carrier, it can reduce the tracking time in low signal-to-noise rate and high dynamic condition. The results show that it can effectively achieve the expectations of carrier quickly capture and carrier accurate tracking.
{"title":"Fast Acquisition and Tracking for Carrier in High Dynamic Condition","authors":"Naiping Cheng, Dianfei Pan","doi":"10.1109/ICCSEE.2012.230","DOIUrl":"https://doi.org/10.1109/ICCSEE.2012.230","url":null,"abstract":"In order to actualize the fast synchronization of carrier in high dynamic, A New union carrier synchronization algorithm based on FFT and PLL (Phase Locked Loop) is proposed. The basic idea is that firstly get a coarse estimation by using the peak of a period gram and then gain an accurate estimation by using a new interpolation formula about the two lines beside the pea. Next, using the frequency as guide frequency, to control the frequency of the sine signal produced by the NCO (Numerically Controlled Oscillator). And finally achieve the goal of carrier synchronization through the adaptive algorithm of the PLL. With the method of real-time and precise estimation of carrier, it can reduce the tracking time in low signal-to-noise rate and high dynamic condition. The results show that it can effectively achieve the expectations of carrier quickly capture and carrier accurate tracking.","PeriodicalId":132465,"journal":{"name":"2012 International Conference on Computer Science and Electronics Engineering","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114768898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
With the development of smart grid, the power communication service presents features of IP, broadband, and intelligence. The traditional transmission network based on Multi-Service Transport Plat (MSTP) cannot adapt the evolution trend of all-IP and ultra long-haul. The cost of Dense Wavelength Division Multiplexing (DWDM) technology also needs to be reduced. In this paper, a new framework of the next generation power communication transmission network based on Packet Transport Network (PTN) and Optical Transport Network (OTN) is proposed. Furthermore, strategies for interconnection and evolution of the current and future transmission network are discussed. The conclusion is that the PTN and OTN based network can solve the problems of traditional MSTP and DWDM network, so it is a suitable scheme for the next generation power communication transmission network.
{"title":"Research on Framework of the Next Generation Power Communication Transmission Network","authors":"Bao Feng, Q. Fan, Y. Li, Daqing Ding","doi":"10.1109/ICCSEE.2012.338","DOIUrl":"https://doi.org/10.1109/ICCSEE.2012.338","url":null,"abstract":"With the development of smart grid, the power communication service presents features of IP, broadband, and intelligence. The traditional transmission network based on Multi-Service Transport Plat (MSTP) cannot adapt the evolution trend of all-IP and ultra long-haul. The cost of Dense Wavelength Division Multiplexing (DWDM) technology also needs to be reduced. In this paper, a new framework of the next generation power communication transmission network based on Packet Transport Network (PTN) and Optical Transport Network (OTN) is proposed. Furthermore, strategies for interconnection and evolution of the current and future transmission network are discussed. The conclusion is that the PTN and OTN based network can solve the problems of traditional MSTP and DWDM network, so it is a suitable scheme for the next generation power communication transmission network.","PeriodicalId":132465,"journal":{"name":"2012 International Conference on Computer Science and Electronics Engineering","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114858449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
To improve information retrieval speed, it is the key of minimizing traffic and every required visit peer on the view of reducing traffic, combining the merit of width first search won't lead to redundant and P2P network's dynamic feature, We advanced adopting width first search in local bound-Broad first minimum spanning tree search. It can reduce redundant search packet in some scope. Meanwhile, It won't occupy much network resource in message exchange because of scope is small. The way have good feature in expansibility and robustness. It can adapt to dynamic change in P2P network.
{"title":"The Application of Broad First Minimum Spanning Tree Algorithm Based on Prim Algorithm in P2P Network","authors":"Tai Xiang, Jinxu Li","doi":"10.1109/ICCSEE.2012.407","DOIUrl":"https://doi.org/10.1109/ICCSEE.2012.407","url":null,"abstract":"To improve information retrieval speed, it is the key of minimizing traffic and every required visit peer on the view of reducing traffic, combining the merit of width first search won't lead to redundant and P2P network's dynamic feature, We advanced adopting width first search in local bound-Broad first minimum spanning tree search. It can reduce redundant search packet in some scope. Meanwhile, It won't occupy much network resource in message exchange because of scope is small. The way have good feature in expansibility and robustness. It can adapt to dynamic change in P2P network.","PeriodicalId":132465,"journal":{"name":"2012 International Conference on Computer Science and Electronics Engineering","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126221639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper proposed a new collision detection algorithm that is based based on the combination of improved OBB bounding hierarchy and KD-tree acceleration of ray tracing used in Vega Pirme. This method can solve the drawback of low accuracy according to vector collision detection algorithm of intersecting detection on Vega Prime. Experimental results show that the algorithm can speed up the rate of collision detection and it can complete the virtual environment roaming issues that arise during the collision accurately and quickly.
{"title":"Survey of Collision Detection in Roaming of Virtual Environment","authors":"Wei Zhao, Ying Zhang","doi":"10.1109/ICCSEE.2012.402","DOIUrl":"https://doi.org/10.1109/ICCSEE.2012.402","url":null,"abstract":"This paper proposed a new collision detection algorithm that is based based on the combination of improved OBB bounding hierarchy and KD-tree acceleration of ray tracing used in Vega Pirme. This method can solve the drawback of low accuracy according to vector collision detection algorithm of intersecting detection on Vega Prime. Experimental results show that the algorithm can speed up the rate of collision detection and it can complete the virtual environment roaming issues that arise during the collision accurately and quickly.","PeriodicalId":132465,"journal":{"name":"2012 International Conference on Computer Science and Electronics Engineering","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121619805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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