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On the miniaturization of microstrip line fed slot antenna using various slots 利用不同槽位的微带馈线槽天线小型化研究
2010 International Conference on Computer and Information Application Pub Date : 2011-12-29 DOI: 10.1109/LAPC.2011.6114015
M. Al-Nuaimi
{"title":"On the miniaturization of microstrip line fed slot antenna using various slots","authors":"M. Al-Nuaimi","doi":"10.1109/LAPC.2011.6114015","DOIUrl":"https://doi.org/10.1109/LAPC.2011.6114015","url":null,"abstract":"With the advancement in microelectronic technology, there is a growing tendency in the hardware of the wireless communication systems to be smaller in size with much more functionalities. Along with this miniaturized RF systems and components, the size of the antenna becomes one of the largest and cumbersome system components. As a result, small size, light weight, low profile and power efficient antennas are in great demand. In this paper the study of the effect of various geometrical slots in the ground plane of a 50Ω microstrip transmission line fed slot antenna for compact operation is presented. The study includes four different types of ground plane slots: (a) conventional rectangular slot, (b) square dumbbell slot, (c) circular dumbbell slot and (d) double cross slot. Its found that using the square dumbbell slot resulted in 31% reduction in the antenna size compared to the conventional slot antenna. Numerical simulations are carried out using CST microwave studio based on the finite integration time-domain technique.","PeriodicalId":211523,"journal":{"name":"2010 International Conference on Computer and Information Application","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128829784","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: 13
The survey of GSM wireless communication system GSM无线通信系统概述
2010 International Conference on Computer and Information Application Pub Date : 2010-12-01 DOI: 10.1109/ICCIA.2010.6141552
Guifen Gu, Guili Peng
{"title":"The survey of GSM wireless communication system","authors":"Guifen Gu, Guili Peng","doi":"10.1109/ICCIA.2010.6141552","DOIUrl":"https://doi.org/10.1109/ICCIA.2010.6141552","url":null,"abstract":"In the past decade, wireless communications experienced an explosive growth period and became an integral part of modern society. The convenience and flexibility offered by mobile communications have made it one of the fastest growing areas of telecommunications. Mobile communication systems have experienced rapid growth in the number of users as well as the range of services provided during the last two decades. The Global System for Mobile communications, GSM, is a pan-European Mobile communication system in the 900 MHz band which was first introduced in the early years of this decade. An increasing demand for data transmission services over the GSM system has been driven by the wide use of the internet applications. In this thesis, we focus on the survey of GSM for wireless communication, which is one of the most widely deployed second generation wireless cellular systems in the world. While voice was the primary service provided early communication systems, current systems offer other transmission services. One of the most commonly used cellular systems is based on the Global System for Mobile communication, GSM, standard. We briefly introduce the GSM System configuration and major properties. It included five parts. It is about service and features, architecture of GSM system, channel and frame structure of GSM, GSM security features, data in the GSM System.","PeriodicalId":211523,"journal":{"name":"2010 International Conference on Computer and Information Application","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116657681","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: 95
Fuzzy control for the handling stability of motor drive electric vehicle 电动汽车操纵稳定性的模糊控制
2010 International Conference on Computer and Information Application Pub Date : 2010-12-01 DOI: 10.1109/ICCIA.2010.6141611
Yongli Zhao, Yuhong Zhang
{"title":"Fuzzy control for the handling stability of motor drive electric vehicle","authors":"Yongli Zhao, Yuhong Zhang","doi":"10.1109/ICCIA.2010.6141611","DOIUrl":"https://doi.org/10.1109/ICCIA.2010.6141611","url":null,"abstract":"A direct fuzzy control method is proposed for the purpose of improving the handling stability of an motor drive electric vehicle (EV). The control system is based on sliding mode control. By measurements of vehicle states, the control algorithm determines the level of vehicle stability and intervenes as necessary through individual wheel traction control to provide added stability and handing predictability. Therefore, the stability control system distributes torque and power to each motor to meet the requirements of each wheel. The effectiveness and validation of the proposed fuzzy control method are evaluated both by Matlab/Simulink based on simulations. Simulation results of dynamic responses for sideslip angle and yaw rate of the EV manifest that the fuzzy control system can assist drivers with controlling the stability of the vehicle during adverse driving maneuvers over a variety of road conditions and enhance the handling stability of the EV.","PeriodicalId":211523,"journal":{"name":"2010 International Conference on Computer and Information Application","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125871110","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: 3
Analysis method on maneuvering motion pattern of trimaran unmanned surface vessel 三体无人水面舰艇机动运动模式分析方法
2010 International Conference on Computer and Information Application Pub Date : 2010-12-01 DOI: 10.1109/ICCIA.2010.6141567
Cui Jian, Wu Wei, Yang Songlin, Wang Pengyu, Yuan Jing-pin, Chen Peng
{"title":"Analysis method on maneuvering motion pattern of trimaran unmanned surface vessel","authors":"Cui Jian, Wu Wei, Yang Songlin, Wang Pengyu, Yuan Jing-pin, Chen Peng","doi":"10.1109/ICCIA.2010.6141567","DOIUrl":"https://doi.org/10.1109/ICCIA.2010.6141567","url":null,"abstract":"A new type of trimaran unmanned surface vessel has been designed, we studied on its maneuverability, and finished 5°and 10°rudder angle maneuverability test. We selected the genetic algorithm as the optimization method, identified the test data of trimaran unmanned surface vessel maneuverability by software. Having compared the identified results with the test data and then analyzed the error, we made conclusion that the identified results well matched the test results from groups of compared data plots.","PeriodicalId":211523,"journal":{"name":"2010 International Conference on Computer and Information Application","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122550578","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
Evaluation and modeling of online course using fuzzy AHP 基于模糊层次分析法的网络课程评价与建模
2010 International Conference on Computer and Information Application Pub Date : 2010-12-01 DOI: 10.1109/ICCIA.2010.6141579
Chen Jie
{"title":"Evaluation and modeling of online course using fuzzy AHP","authors":"Chen Jie","doi":"10.1109/ICCIA.2010.6141579","DOIUrl":"https://doi.org/10.1109/ICCIA.2010.6141579","url":null,"abstract":"Previous studies have identified various influence factors of online course, web-based system and online learning environments. But they consider little about course content and instructional design. Furthermore, these studies are likely to determine evaluation criteria empirically. This paper gives a literature review of online course quality evaluation and classifies four dimensions (including course content, instructional design, and service design and system support) and 13 sub-criteria to measure online course effectiveness. Then, it gives the process of how to solve such multiple-attribute decision-making problems using fuzzy analytic hierarchy process and builds a fuzzy evaluation model which prioritized the relative weights of online course quality factors.","PeriodicalId":211523,"journal":{"name":"2010 International Conference on Computer and Information Application","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116851252","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: 7
Control of SRG for micro-turbine applications under inverter switch open 逆变开关打开情况下微型水轮机用SRG的控制
2010 International Conference on Computer and Information Application Pub Date : 2010-12-01 DOI: 10.1109/ICCIA.2010.6141565
Hong-wei Fang, Zhaoxia Xiao, Wei-qiang Zhai
{"title":"Control of SRG for micro-turbine applications under inverter switch open","authors":"Hong-wei Fang, Zhaoxia Xiao, Wei-qiang Zhai","doi":"10.1109/ICCIA.2010.6141565","DOIUrl":"https://doi.org/10.1109/ICCIA.2010.6141565","url":null,"abstract":"A control approach for switched reluctance generator (SRG) under inverter switch open is proposed. The corresponding reconfigurable control topology is designed to keep the switch reluctance generator operating after the inverter switch open fault occurs. It can enhance the reliability and the adaptability of the switched reluctance micro-turbine generation system. Simulation results have proved the aforementioned merits.","PeriodicalId":211523,"journal":{"name":"2010 International Conference on Computer and Information Application","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117083980","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: 2
Study on on-line measurement system of stone slabs based on OpenCV 基于OpenCV的石板在线测量系统研究
2010 International Conference on Computer and Information Application Pub Date : 2010-12-01 DOI: 10.1109/ICCIA.2010.6141638
Zhao Min, Na Lihong
{"title":"Study on on-line measurement system of stone slabs based on OpenCV","authors":"Zhao Min, Na Lihong","doi":"10.1109/ICCIA.2010.6141638","DOIUrl":"https://doi.org/10.1109/ICCIA.2010.6141638","url":null,"abstract":"An on-line measurement system of stone slabs based on CCD technology is constituted by using the CCD camera, image acquisition card, computer and so on. The on-line measurement system for the stone slab is realized by applying camera calibration and image processing algorithms. Under VC++6.0 condition, camera calibration is realized by calling OpenCV1.0 library function and stone slab contour is extracted by using image processing technology. At last, the dimension of the slab can be calculated. The study of this system has great significance in reasonable utilization of stone mine resources, energy conservation and emission reduction.","PeriodicalId":211523,"journal":{"name":"2010 International Conference on Computer and Information Application","volume":"199 1-2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120910561","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
The use of Genetic Algorithm for designing MIMO antenna placement 利用遗传算法设计MIMO天线布局
2010 International Conference on Computer and Information Application Pub Date : 2010-12-01 DOI: 10.1109/ICCIA.2010.6141624
P. Uthansakul, Danai Assanuk, M. Uthansakul
{"title":"The use of Genetic Algorithm for designing MIMO antenna placement","authors":"P. Uthansakul, Danai Assanuk, M. Uthansakul","doi":"10.1109/ICCIA.2010.6141624","DOIUrl":"https://doi.org/10.1109/ICCIA.2010.6141624","url":null,"abstract":"The topic of practical implementation of MIMO systems for wireless communication has recently gained a lot of attention. One interesting issue is how to design the position of multiple antennas on wireless terminal. In this paper, the Genetic Algorithm (GA) is employed to find the optimal antenna placement in order to achieve the best capacity benefit. The effect of mutual coupling based on Z-parameter is the main factor to determine the MIMO capacity concerning as the objective function of GA search. Two cases of 3×3 and 4×4 MIMO systems are experimentally studied. Both simulation and measurement results confirm the success of the proposed method to design MIMO antenna placement.","PeriodicalId":211523,"journal":{"name":"2010 International Conference on Computer and Information Application","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114817243","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
Practical precision bound for indoor location determination 室内定位实用精度界
2010 International Conference on Computer and Information Application Pub Date : 2010-12-01 DOI: 10.1109/ICCIA.2010.6141623
Yiming Ji
{"title":"Practical precision bound for indoor location determination","authors":"Yiming Ji","doi":"10.1109/ICCIA.2010.6141623","DOIUrl":"https://doi.org/10.1109/ICCIA.2010.6141623","url":null,"abstract":"This paper proposes a practical precision bound (PPB) to estimate the achievable localization precision for an indoor location determination system in a given environment. We evaluate the PPB using both database-based and range-based indoor systems in an office building. We further compare PPB with Cramer-Rao bound (CRB), a classic lower bound estimator based on the variance of a deterministic parameter. Experimental results indicate that PPB provides a very close bound to the CRB when CRB uses a normal distribution model for range measurement errors in the considered building. This prior knowledge of a probability distribution could be unknown or inaccurate when deployment environment changes, and therefore PPB, which is independent of this prior knowledge, could serve as a general lower bound estimator for location determination research.","PeriodicalId":211523,"journal":{"name":"2010 International Conference on Computer and Information Application","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127965459","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: 3
Image filter method based on maximal entropy principle 基于最大熵原理的图像滤波方法
2010 International Conference on Computer and Information Application Pub Date : 2010-12-01 DOI: 10.1109/ICCIA.2010.6141527
L. Dong, Lianhe Yang, Chen Liang
{"title":"Image filter method based on maximal entropy principle","authors":"L. Dong, Lianhe Yang, Chen Liang","doi":"10.1109/ICCIA.2010.6141527","DOIUrl":"https://doi.org/10.1109/ICCIA.2010.6141527","url":null,"abstract":"This paper selects Haar wavelet as the basis, using the soft threshold method wavelet coefficients of compression processing, image filtering experiment is accomplished by wavelet compression de-noising method. The approach to determine the appropriate threshold coefficient affects the noise level directly, so the approach used to determine the threshold coefficient is very important. The maximum entropy principle is used to determine threshold coefficient in this paper. De-noising experimental results of a picture with noise shows that the method to determine the threshold coefficient through the maximum entropy principle and then wavelet compress de-noising is accomplished, which is used to complain combine the threshold coefficient through the maximum entropy principle and wavelet compression de-noising and the result is satisfied.","PeriodicalId":211523,"journal":{"name":"2010 International Conference on Computer and Information Application","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130951072","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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