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Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402)最新文献

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A frequency spectrum model of the intermodulation products generated by paging transmitters 由寻呼发射机产生的互调产物的频谱模型
Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402) Pub Date : 2000-05-03 DOI: 10.1109/CEEM.2000.853950
Liang Jianyu, Hu Shou-ming
{"title":"A frequency spectrum model of the intermodulation products generated by paging transmitters","authors":"Liang Jianyu, Hu Shou-ming","doi":"10.1109/CEEM.2000.853950","DOIUrl":"https://doi.org/10.1109/CEEM.2000.853950","url":null,"abstract":"The present paper presents a frequency spectrum model analytic method of the intermodulation products generated by paging transmitters. A frequency spectrum model and its simulation frequency spectrum of nineteen intermodulation products, which are generated by different kinds of paging transmitters, are shown. All these above could be used by the spectrum manager to identify the intermodulation interference. They could also be used to distinguish the interfering signals with the help of computer assisted software of searching interference.","PeriodicalId":153945,"journal":{"name":"Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402)","volume":"400 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131391521","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
Management of magnetic fields in large commercial buildings 大型商业建筑的磁场管理
Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402) Pub Date : 2000-05-03 DOI: 10.1109/CEEM.2000.853920
Y. Du, S. Kong, J. Burnett
{"title":"Management of magnetic fields in large commercial buildings","authors":"Y. Du, S. Kong, J. Burnett","doi":"10.1109/CEEM.2000.853920","DOIUrl":"https://doi.org/10.1109/CEEM.2000.853920","url":null,"abstract":"The magnetic environment in large commercial buildings is getting worse as the demand on power and energy is ever increasing. In this paper, technical approaches or measures for magnetic field management in large commercial buildings are discussed, which include rewiring, shielding and others.","PeriodicalId":153945,"journal":{"name":"Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122396559","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
EMC design techniques of large computing systems 大型计算系统的电磁兼容设计技术
Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402) Pub Date : 2000-05-03 DOI: 10.1109/CEEM.2000.853891
K. Soohoo, Chang-yu Wu
{"title":"EMC design techniques of large computing systems","authors":"K. Soohoo, Chang-yu Wu","doi":"10.1109/CEEM.2000.853891","DOIUrl":"https://doi.org/10.1109/CEEM.2000.853891","url":null,"abstract":"Large computing systems are the backbones of most large international corporations' computing power in all areas of critical applications; their reliability and availability without question are of utmost importance to all computer centers. The large systems due to their shear size pose a unique challenge to EMC designers in dealing with the spider-web-like network of system cables (antenna arrays) exposed to potential hostile EMC threats. In the paper the techniques and considerations going into EMC design of large computing systems are discussed.","PeriodicalId":153945,"journal":{"name":"Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121837389","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
Using IDFT technique for antenna's time-domain near-field measurements 利用IDFT技术进行天线时域近场测量
Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402) Pub Date : 2000-05-03 DOI: 10.1109/CEEM.2000.853971
Xue Zhenghui, Gao Ben-qing, L. Ruixiang, Yang Shiming, Liu Chao
{"title":"Using IDFT technique for antenna's time-domain near-field measurements","authors":"Xue Zhenghui, Gao Ben-qing, L. Ruixiang, Yang Shiming, Liu Chao","doi":"10.1109/CEEM.2000.853971","DOIUrl":"https://doi.org/10.1109/CEEM.2000.853971","url":null,"abstract":"This paper described a new method which uses IDFT (inverse discrete Fourier transform) technique to perform time-domain near-field measurements for antenna. Some calculation examples show that this method is feasible and exact.","PeriodicalId":153945,"journal":{"name":"Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131706337","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
Sources of electromagnetic disturbances in resistance welding inverter topologies and effective reduction techniques 电阻焊逆变器拓扑结构中电磁干扰的来源及有效减小技术
Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402) Pub Date : 2000-05-03 DOI: 10.1109/CEEM.2000.853942
R. Doebbelin, H. Mecke, T. Winkler, D. Heyder
{"title":"Sources of electromagnetic disturbances in resistance welding inverter topologies and effective reduction techniques","authors":"R. Doebbelin, H. Mecke, T. Winkler, D. Heyder","doi":"10.1109/CEEM.2000.853942","DOIUrl":"https://doi.org/10.1109/CEEM.2000.853942","url":null,"abstract":"In the paper, existing possibilities to localize sources of disturbance within resistance welding inverter topologies are illustrated. Furthermore, the effects of the application of mains filters and noise suppression capacitors are also discussed.","PeriodicalId":153945,"journal":{"name":"Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131836069","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
Classification of PCB configurations from radiated EMI by using neural network 利用神经网络对辐射电磁干扰下的PCB结构进行分类
Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402) Pub Date : 2000-05-03 DOI: 10.1109/CEEM.2000.853911
K. Aunchaleevarapan, K. Paithoonwatanakij, Y. Preampraneerach, W. Khan-ngern, S. Nitta
{"title":"Classification of PCB configurations from radiated EMI by using neural network","authors":"K. Aunchaleevarapan, K. Paithoonwatanakij, Y. Preampraneerach, W. Khan-ngern, S. Nitta","doi":"10.1109/CEEM.2000.853911","DOIUrl":"https://doi.org/10.1109/CEEM.2000.853911","url":null,"abstract":"This paper presents a method of classifications of printed circuit board (PCB) with having several configuration by using neural network to recognized its spectrum. The learning process is accomplished by giving the neural network the different radiated emission spectra of 22 PCB configurations. The trained neural network is successfully able to predict the PCB configurations.","PeriodicalId":153945,"journal":{"name":"Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128427632","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: 9
The implementation of a simple local matched load in FDTD computation of microstrip circuits 实现了一种简单的局部匹配负载在微带电路FDTD计算中的应用
Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402) Pub Date : 2000-05-03 DOI: 10.1109/CEEM.2000.853948
Zhang Yan, R. Wu, Ding Si-Ru, Gao Ben-qing
{"title":"The implementation of a simple local matched load in FDTD computation of microstrip circuits","authors":"Zhang Yan, R. Wu, Ding Si-Ru, Gao Ben-qing","doi":"10.1109/CEEM.2000.853948","DOIUrl":"https://doi.org/10.1109/CEEM.2000.853948","url":null,"abstract":"A kind of simple local matched load (LML) derived from the concept of unsplit PML is presented and implemented in the FDTD computation of microstrip circuits. Since it is used below the metal strip of the microstrip locally, it is convenient to fit the complex circuits that have multi-branch structures. The difference equations in LML have the same form with those in the background medium, so it is easy to implement. Two examples are given to test the effectiveness of LML. The computation results are compared with the results simulated by MS-office software and those in from IEEE Trans. on MTT, vol38, no.7, p.849-56, 1990.","PeriodicalId":153945,"journal":{"name":"Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130765836","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
Lightning overvoltage protection for financial computerizing systems 金融计算机系统的雷电过电压保护
Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402) Pub Date : 2000-05-03 DOI: 10.1109/CEEM.2000.853967
Qui Chuan Rui, Lian Guang
{"title":"Lightning overvoltage protection for financial computerizing systems","authors":"Qui Chuan Rui, Lian Guang","doi":"10.1109/CEEM.2000.853967","DOIUrl":"https://doi.org/10.1109/CEEM.2000.853967","url":null,"abstract":"Financial systems are nowadays dependent on electronic data processing technology. One of the most frequent causes of failure in this highly sensitive system are overvoltages mostly caused by lightning. This paper describes how lightning electromagnetic pulse intrudes into computer information systems and causes system damage. Damage prevention is also discussed.","PeriodicalId":153945,"journal":{"name":"Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130788564","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
Fictitious multi-medium method and its application in electromagnetic shielding calculations of underground telecommunication cables 虚拟多介质法及其在地下通信电缆电磁屏蔽计算中的应用
Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402) Pub Date : 2000-05-03 DOI: 10.1109/CEEM.2000.853951
J. Zou, Jiansheng Yuan, Xinshan Ma
{"title":"Fictitious multi-medium method and its application in electromagnetic shielding calculations of underground telecommunication cables","authors":"J. Zou, Jiansheng Yuan, Xinshan Ma","doi":"10.1109/CEEM.2000.853951","DOIUrl":"https://doi.org/10.1109/CEEM.2000.853951","url":null,"abstract":"A fictitious multi-medium method is presented, where the conductivity or permeability of fictitious medium is negative. The discretization is confined to fictitious medium regions, so this method is requiring much less computer memories and timesaving. The validation of this method is verified by the electromagnetic shielding analysis of underground telecommunication cables.","PeriodicalId":153945,"journal":{"name":"Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116672410","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
Test and study of impact of electrified railway on audio-video program production 电气化铁路对音视频节目制作影响的试验研究
Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402) Pub Date : 1900-01-01 DOI: 10.1109/CEEM.2000.853975
Bian Yefei
{"title":"Test and study of impact of electrified railway on audio-video program production","authors":"Bian Yefei","doi":"10.1109/CEEM.2000.853975","DOIUrl":"https://doi.org/10.1109/CEEM.2000.853975","url":null,"abstract":"Through testing and analyzing the impact caused by the electrified railway on audio-video program production, this paper indicates that the electrified railway will cause obvious impact on the audio-video system, especially the audio frequency, within a certain distance. The interference is mainly electromagnetic radiation coupling interference. Under the condition of bad earthing, static induction impact will also become an interference source not to be ignored. The protective measures should be laid particular emphasis on increasing the balance level of the audio-frequency transmission line, improving the earthing effect or implementing the electromagnetic screening measures.","PeriodicalId":153945,"journal":{"name":"Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402)","volume":"71 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":"121515412","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
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