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Research on telemetry modulation system 遥测调制系统的研究
Computer Engineering and Design Pub Date : 2013-05-01 DOI: 10.11591/TELKOMNIKA.V11I5.2458
Dai Jiyang
{"title":"Research on telemetry modulation system","authors":"Dai Jiyang","doi":"10.11591/TELKOMNIKA.V11I5.2458","DOIUrl":"https://doi.org/10.11591/TELKOMNIKA.V11I5.2458","url":null,"abstract":"To develop the effective aerospace telemetry communication system,aimed at the requirements of high-speed,high bandwidth,high efficiency and low interference of aerospace telemetly communication,the C-WQPSK(C-W quadrature phase-shift keying)modulation method is put forward.This method based on direct carrier QPSK,didn't consider baseband pulse signal,redesigned the modulating waveform,its phase angle jump and jump to change duration time all is changed.Also the C-WQPSK performance and theory analysis are given,and compared with QPSK and FQPSK,Through the MATLAB simulation experiment,this modulation method is correctness and effectiveness.","PeriodicalId":365328,"journal":{"name":"Computer Engineering and Design","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121032927","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}
引用次数: 1
An improved algorithm to determine topological relationship between point and polygon 一种确定点与多边形拓扑关系的改进算法
Computer Engineering and Design Pub Date : 2012-03-03 DOI: 10.1049/cp.2012.1006
Jun Xiang, J. Wang, Y. Xia
{"title":"An improved algorithm to determine topological relationship between point and polygon","authors":"Jun Xiang, J. Wang, Y. Xia","doi":"10.1049/cp.2012.1006","DOIUrl":"https://doi.org/10.1049/cp.2012.1006","url":null,"abstract":"There are defects on analyzing of topological relationship between point and polygon with Ray-algorithm, this paper made use of the different relationship of positions to improve and extend the Ray-algorithm according to the complexity of polygon, and it extended into complex polygon simply and effectively by adding one, adding two and adding three operations. It could analyze of topological relationship between point and polygon accurately, and gave the detailed steps of the algorithm. It shows that the result of experiment, this method was effective to simple and complicated of polygons.","PeriodicalId":365328,"journal":{"name":"Computer Engineering and Design","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122426004","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}
引用次数: 1
An Building Edge Detection Method Using Fuzzy SVM 基于模糊支持向量机的建筑物边缘检测方法
Computer Engineering and Design Pub Date : 1900-01-01 DOI: 10.1007/978-3-642-15660-1_83
Yundong Wu, Wen An, Qiang Zhang, Shui-Li Chen
{"title":"An Building Edge Detection Method Using Fuzzy SVM","authors":"Yundong Wu, Wen An, Qiang Zhang, Shui-Li Chen","doi":"10.1007/978-3-642-15660-1_83","DOIUrl":"https://doi.org/10.1007/978-3-642-15660-1_83","url":null,"abstract":"","PeriodicalId":365328,"journal":{"name":"Computer Engineering and Design","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134356805","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}
引用次数: 1
Improved particle swarm optimization algorithm 改进的粒子群优化算法
Computer Engineering and Design Pub Date : 1900-01-01 DOI: 10.1109/iccsnt.2011.6182027
Zhou Han-chang
{"title":"Improved particle swarm optimization algorithm","authors":"Zhou Han-chang","doi":"10.1109/iccsnt.2011.6182027","DOIUrl":"https://doi.org/10.1109/iccsnt.2011.6182027","url":null,"abstract":"To improve full searching ability, local searching ability, convergence rate and calculating precision of elementary particle swarm, based on classical PSO algorithm and quanta theory, an improved PSO algorithm with quantum behavior--cQPSO algorithm is proposed. Identical particle system is introduced to update the position of particle and chaos thought is introduced to chaotic search every particle, accordingly improving the full searching ability, local searching ability, convergence rate and calculating precision of elementary particle swarm. The experimental results of classical function show that capability of improved algorithm is superior to classical PSO algorithm and PSO algorithm with quantum behavior.","PeriodicalId":365328,"journal":{"name":"Computer Engineering and Design","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127283149","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}
引用次数: 5
Telephone Traffic Forecasting Based on Grey Neural Network Optimized by Improved Particle Swarm Optimization Algorithm 基于改进粒子群算法优化的灰色神经网络话务量预测
Computer Engineering and Design Pub Date : 1900-01-01 DOI: 10.14257/ijhit.2015.8.1.01
Xiuting Yu, Xizhong Qin, Zhenhong Jia, Chuanling Cao, Chun Chang
{"title":"Telephone Traffic Forecasting Based on Grey Neural Network Optimized by Improved Particle Swarm Optimization Algorithm","authors":"Xiuting Yu, Xizhong Qin, Zhenhong Jia, Chuanling Cao, Chun Chang","doi":"10.14257/ijhit.2015.8.1.01","DOIUrl":"https://doi.org/10.14257/ijhit.2015.8.1.01","url":null,"abstract":"To solve the problem that the parameters in grey neural network (GNN) are difficult to determine, the improved Particle Swarm Optimization (IPSO) algorithm is employed to search the optimums by the introduction of a threshold of velocity. When the particle velocity is less than the threshold, an accelerated momentum is applied on the particle to reinitialize the particle velocity and position. The proposed approach is used to predict the telephone traffic of two regions. The forecasting results are compared with those of GNN, Grey Neural Network optimized by Particle Swarm Optimization (PSO-GNN) and Back-Propagation Neural Network (BPNN). The experimental results show high prediction accuracy.","PeriodicalId":365328,"journal":{"name":"Computer Engineering and Design","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129904980","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}
引用次数: 0
AST-based plagiarism detection method 基于ast的抄袭检测方法
Computer Engineering and Design Pub Date : 1900-01-01 DOI: 10.1007/978-3-642-32427-7_87
Liping Zhang, Dongsheng Liu, Yanchen Li, Mei Zhong
{"title":"AST-based plagiarism detection method","authors":"Liping Zhang, Dongsheng Liu, Yanchen Li, Mei Zhong","doi":"10.1007/978-3-642-32427-7_87","DOIUrl":"https://doi.org/10.1007/978-3-642-32427-7_87","url":null,"abstract":"","PeriodicalId":365328,"journal":{"name":"Computer Engineering and Design","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121989368","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}
引用次数: 8
Fault-tolerant model of web service composition based on aspect oriented programming 基于面向方面编程的web服务组合容错模型
Computer Engineering and Design Pub Date : 1900-01-01 DOI: 10.1201/b17732-166
Gu Ling-lan
{"title":"Fault-tolerant model of web service composition based on aspect oriented programming","authors":"Gu Ling-lan","doi":"10.1201/b17732-166","DOIUrl":"https://doi.org/10.1201/b17732-166","url":null,"abstract":"To deal with Failure classification and code winding,a fault-tolerant model of web service composition based on aspect oriented programming is proposed.Firstly,fault reasons at all stage of Web services during execution are analyzed and classified,appropriate fault-tolerant strategies are presented,and web service composition model are built based on separation-of-concerns.Business function and quality of service are ensured,while function concerns and fault-tolerant concerns are separated.Finally,a case study of setup planning is presented to verify the feasibility of the method.","PeriodicalId":365328,"journal":{"name":"Computer Engineering and Design","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130122969","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}
引用次数: 0
Research of trust evaluation mechanism in P2P E-commerce P2P电子商务中信任评价机制研究
Computer Engineering and Design Pub Date : 1900-01-01 DOI: 10.25236/icemit.2018.073
Xu Zhen-zhen
{"title":"Research of trust evaluation mechanism in P2P E-commerce","authors":"Xu Zhen-zhen","doi":"10.25236/icemit.2018.073","DOIUrl":"https://doi.org/10.25236/icemit.2018.073","url":null,"abstract":"To solve the P2P E-commerce security problem effectively,on the basis of researching the trust model deeply in the P2P Ecommerce, a method based on hash function is proposed to put the node from the trust group into the sub-group in a random.It reduces the risk of collusion attack.When a node provides a malicious service occasionally,it can not be proved to be a malicious node,and it only needs to be given a warning.Transaction time factors,transaction scales,and transactions number are introduced to calculate the trust value.Penalty item is used to limit node to provide malicious service.It is more accurate to estimate the trust value.The model relies heavily on nodes from the group connected with outside group and the nodes from the same group,and it ensures the performance of the network.","PeriodicalId":365328,"journal":{"name":"Computer Engineering and Design","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126377533","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}
引用次数: 0
Accelerate x86 System Emulation with Protection Cache 使用保护缓存加速x86系统仿真
Computer Engineering and Design Pub Date : 1900-01-01 DOI: 10.1007/978-3-642-29387-0_43
Weiyu Dong, Liehui Jiang, Yun Zeng, Yudong Guo
{"title":"Accelerate x86 System Emulation with Protection Cache","authors":"Weiyu Dong, Liehui Jiang, Yun Zeng, Yudong Guo","doi":"10.1007/978-3-642-29387-0_43","DOIUrl":"https://doi.org/10.1007/978-3-642-29387-0_43","url":null,"abstract":"","PeriodicalId":365328,"journal":{"name":"Computer Engineering and Design","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114886087","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}
引用次数: 0
Design and research for lower computer system of wave buoy based on GPRS communication technology 基于GPRS通信技术的波浪浮标下位机系统的设计与研究
Computer Engineering and Design Pub Date : 1900-01-01 DOI: 10.14270/ijce2013.2.4.c342
Huang Yao-yao
{"title":"Design and research for lower computer system of wave buoy based on GPRS communication technology","authors":"Huang Yao-yao","doi":"10.14270/ijce2013.2.4.c342","DOIUrl":"https://doi.org/10.14270/ijce2013.2.4.c342","url":null,"abstract":"To achieve the bidirectional communication between wave buoy and remote data center,a design of lower computer system is put forward based on the GPRS(general packet radio service) wireless technology.The MCU(micro control unit) is taken as the core of whole system,after the analog voltage signal is collected and packaged automatically after A/D conversion,so the preprocessed signal is sent to the upper computer system.The SIM300 module takes charge of the transmission communication between the upper computer system and the lower computer system.At the same time,commands from upper computer system is used to control and set the mode of current working by the way of interruption.The system analysis shows that this solution possesses of transmission efficiency under the low cost,and a good feasibility and high stability can decrease the professional maintain with a definite practical value.","PeriodicalId":365328,"journal":{"name":"Computer Engineering and Design","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126260341","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}
引用次数: 0
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