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1982 IEEE International Symposium on Electromagnetic Compatibility最新文献

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Interference and Noise Suppressions Using Spread Spectrum Systems 利用扩频系统抑制干扰和噪声
1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1984-07-01 DOI: 10.1109/CEEJ.1984.6593791
C. P. Tou, B. Chang
{"title":"Interference and Noise Suppressions Using Spread Spectrum Systems","authors":"C. P. Tou, B. Chang","doi":"10.1109/CEEJ.1984.6593791","DOIUrl":"https://doi.org/10.1109/CEEJ.1984.6593791","url":null,"abstract":"Reviews strategies of suppressing interference and noise under various circumstances in order to justify the applications of spread spectrum systems. The basic principles of spread spectrum systems are discussed to demonstrate their capabilities of suppressing noise and interference, and other significant advantages of using such systems. The paper is also examines the factors which affect the capability for interference and noise suppressions and the performance of the systems. It is obvious that the systems can suppress various forms of interference and noise effectively and still achieve other significant goals. The ability of suppressing noise and interference depends on the process gain and correlation properties of the codes of the systems. The overall system performance depends on the degree of synchronization which can be accomplished by the systems.","PeriodicalId":280076,"journal":{"name":"1982 IEEE International Symposium on Electromagnetic Compatibility","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1984-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125213301","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
Small Electromagnetic Field Sensor Systems - an Overview 小型电磁场传感器系统综述
1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567735
Melvin J. Johnson, E. Bronaugh
{"title":"Small Electromagnetic Field Sensor Systems - an Overview","authors":"Melvin J. Johnson, E. Bronaugh","doi":"10.1109/ISEMC.1982.7567735","DOIUrl":"https://doi.org/10.1109/ISEMC.1982.7567735","url":null,"abstract":"The last decade of research and development has led to tre­ mendous increases in the complexity of electronic devices. It has also led to significant decreases in the size and power require­ ments of these devices. The combination of these has led to a vastly increased susceptibility potential o f electronic products to electromagnetic interference (EMI). This potential has resulted in the requirement to develop small electromagnetic field sensors to assess the susceptibility of engineering prototypes to EMI. This paper presents an overview of the state-of-the-art technology in small electromagnetic field sensor systems, and provides an insight into ongoing research and new developments.","PeriodicalId":280076,"journal":{"name":"1982 IEEE International Symposium on Electromagnetic Compatibility","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116557469","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
Some Results from a Statistical Scattering Experiment 统计散射实验的一些结果
1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567794
E. Miller, J. Okada
{"title":"Some Results from a Statistical Scattering Experiment","authors":"E. Miller, J. Okada","doi":"10.1109/ISEMC.1982.7567794","DOIUrl":"https://doi.org/10.1109/ISEMC.1982.7567794","url":null,"abstract":"The complex environments in which many electromagnetic systems must operate (consider the antenna arrangements found on typical navy ships) make their analysis in any rigorous sense largely impractical. Yet it is important that the perturbing effect of such environments be somehow accounted for in evaluating system performance. The purpose of this paper is to present some results from a statistical experiment conducted in the time domain to measure the effects caused by N nearby identical scatterers on the receiving properties of a given antenna. It is found that the variance of the peak antenna current at first increases, and then decreases as N increases, with the environment changing from a discrete to an essentially continium or medium-like behavior. This mean peak current, on the other hand, decreases monotonically with increasing N.","PeriodicalId":280076,"journal":{"name":"1982 IEEE International Symposium on Electromagnetic Compatibility","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122707979","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
On the Line Equations for Externally Excited Transmission Line 关于外激输电线路的线路方程
1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567767
Y. Kami, R. Sato
{"title":"On the Line Equations for Externally Excited Transmission Line","authors":"Y. Kami, R. Sato","doi":"10.1109/ISEMC.1982.7567767","DOIUrl":"https://doi.org/10.1109/ISEMC.1982.7567767","url":null,"abstract":"","PeriodicalId":280076,"journal":{"name":"1982 IEEE International Symposium on Electromagnetic Compatibility","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123872845","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
Measurement of the Magnetic Field Reduction Provided by Generic Equipment Cases and Enclosures 通用设备外壳和外壳提供的磁场减小的测量
1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567719
L. Hoeft, R. Karaskiewicz, J. Hofstra, T. J. Andrews
{"title":"Measurement of the Magnetic Field Reduction Provided by Generic Equipment Cases and Enclosures","authors":"L. Hoeft, R. Karaskiewicz, J. Hofstra, T. J. Andrews","doi":"10.1109/ISEMC.1982.7567719","DOIUrl":"https://doi.org/10.1109/ISEMC.1982.7567719","url":null,"abstract":"One measure of the shielding provided by enclo­ sures is the ratio of the magnetic field inside the enclosure divided by the surface magnetic field out­ side the enclosure. This ratio is defined here as the magnetic field reduction or attenuation. The magnetic field attenuation of three types of equip­ ment cases and two enclosures was measured for fre­ quencies up to 100 MHz, using several types of Trans­ verse Electromagnetic (TEM) cells. The equipment cases included a common aluminum chassis with a simple cover, a pair of deep drawn aluminum boxes attached to each other by a machined flange and a commercially-available steel box with an \"RFI\" gasket. The enclosures included two enclosures approximately 8' x 4' x 2' each divided into four equipment bays and a cable bay across the back. The measured magnetic field attenuation of the generic equipment cases and enclosures was always less than that predicted by plane wave shielding calculations. The measured electromagnetic performance was consis­ tent with a simple theory that considered the finite impedance of a joint as the mechanism for coupling current from the exterior to the interior of the enclosure.","PeriodicalId":280076,"journal":{"name":"1982 IEEE International Symposium on Electromagnetic Compatibility","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126315422","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: 4
Shielding Effectiveness of a Rectangular Enclosure 矩形外壳的屏蔽效能
1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567743
G. Branner, A. Jennetti, E. Tonas
{"title":"Shielding Effectiveness of a Rectangular Enclosure","authors":"G. Branner, A. Jennetti, E. Tonas","doi":"10.1109/ISEMC.1982.7567743","DOIUrl":"https://doi.org/10.1109/ISEMC.1982.7567743","url":null,"abstract":"This paper presents the results of a careful ex­ perimental study of the coupling of electromagnetic energy into the interior of a rectangular shielded en­ closure. This study includes swept frequency electric field insertion loss measurements from 25 to 250 MHz taken at a distance of six feet from the enclosure with the receiving sensor located at various positions within the chamber. It is the objective of this study to quantitatively show how the shielding effectiveness of a rectangular shielded enclosure will vary as the location of measuring antenna inside the room is changed.","PeriodicalId":280076,"journal":{"name":"1982 IEEE International Symposium on Electromagnetic Compatibility","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126218112","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
Measured Transfer Impedance of Braid and Convoluted Shields 辫状和卷曲屏蔽传输阻抗的测量
1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567797
J. Hofstra, M. Dinallo, L. Hoeft
{"title":"Measured Transfer Impedance of Braid and Convoluted Shields","authors":"J. Hofstra, M. Dinallo, L. Hoeft","doi":"10.1109/ISEMC.1982.7567797","DOIUrl":"https://doi.org/10.1109/ISEMC.1982.7567797","url":null,"abstract":"The surface transfer impedance of 36 samples of cable shields were measured from 1 kHz to 100 MHz. Measurements were made in 1 and 6 meter long quad­ raxial test fixtures using computer controlled net­ work analyzers. The apparatus was calibrated using shields made from copper pipes, having a known resis­ tance and leakage mutual inductance. These calibra­ tion shields also allowed the noise floor of the system to be measured. The cable shield samples included tubular and machine braids, magnetic and non-magnetic convolutes, tape wound aluminum and stainless steel conduits, metal tapes and combina­ tions. All samples used a 3/4\" diameter core made up of 19 shielded twisted pairs. The convolute and conduit samples were 1-1/4\" in diameter.","PeriodicalId":280076,"journal":{"name":"1982 IEEE International Symposium on Electromagnetic Compatibility","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131659480","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: 4
Techniques for Controlling Noise Susceptibility in Commercial Digital Systems 商用数字系统噪声敏感性控制技术
1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567731
W. Rhodes
{"title":"Techniques for Controlling Noise Susceptibility in Commercial Digital Systems","authors":"W. Rhodes","doi":"10.1109/ISEMC.1982.7567731","DOIUrl":"https://doi.org/10.1109/ISEMC.1982.7567731","url":null,"abstract":"","PeriodicalId":280076,"journal":{"name":"1982 IEEE International Symposium on Electromagnetic Compatibility","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115776976","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
An Electrical Bond Contact-Impedance Model 一个电键接触阻抗模型
1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567742
W. E. Moyer, David G. Lubar
{"title":"An Electrical Bond Contact-Impedance Model","authors":"W. E. Moyer, David G. Lubar","doi":"10.1109/ISEMC.1982.7567742","DOIUrl":"https://doi.org/10.1109/ISEMC.1982.7567742","url":null,"abstract":"A model is presented for the impedance of an electrical bond between two metal surfaces held in mechanical contact. Sample calculations are performed which show that such electrical bonds may be assumed to be purely resistive for frequencies below approximately 1.0 GHz. Measured electrical bond impedance data for selected sample bonds are shown to be in general agreement with this assumption when skin effect and bulk conductor inductance are considered. The predicted bond impedance was found to be a surface phenomenon and is a function of surface properties and contact pressure applied to the faying surfaces.","PeriodicalId":280076,"journal":{"name":"1982 IEEE International Symposium on Electromagnetic Compatibility","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128525046","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
Design Electronics Algorithm (DEEAL) 设计电子算法(DEEAL)
1982 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 1982-09-01 DOI: 10.1109/ISEMC.1982.7567725
T. Lesniakowski, M. Maiuzzo, J. Rockway, S. T. Li
{"title":"Design Electronics Algorithm (DEEAL)","authors":"T. Lesniakowski, M. Maiuzzo, J. Rockway, S. T. Li","doi":"10.1109/ISEMC.1982.7567725","DOIUrl":"https://doi.org/10.1109/ISEMC.1982.7567725","url":null,"abstract":"Certain aspects of a computer program are described for assisting shipboard-exterior electronics systems and topside antenna systems design. This program, the Design Electronics Algorithm (DEEAL), can be used to determine the relative desirability of candidate system designs. Furthermore, information is provided which suggests improved candidate designs,","PeriodicalId":280076,"journal":{"name":"1982 IEEE International Symposium on Electromagnetic Compatibility","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130742623","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
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