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MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's最新文献

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Present State of Long Distance Time Transfer via Satellites with Application of the MITREX - MODEM 利用MITREX - MODEM进行卫星远距离时间传输的现状
MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's Pub Date : 1986-10-01 DOI: 10.1109/MILCOM.1986.4805775
P. Hartl
{"title":"Present State of Long Distance Time Transfer via Satellites with Application of the MITREX - MODEM","authors":"P. Hartl","doi":"10.1109/MILCOM.1986.4805775","DOIUrl":"https://doi.org/10.1109/MILCOM.1986.4805775","url":null,"abstract":"The Microwave Time Transfer MODEM MITREX is of particular interest for very precise time transfer over intercontinental distances. It allows the synchronization of atomic clocks to accuracies in the order of a few nanoseconds. The MODEM is compatible with the 70 MHZ-input/output interfaces of standard Intelsat earth stations. After a general description, the results of various tests with existing telecommunication satellites are reviewed.","PeriodicalId":126184,"journal":{"name":"MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133159766","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
Nuclear Effects on Communications Systems 核对通信系统的影响
MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's Pub Date : 1986-10-01 DOI: 10.1109/MILCOM.1986.4805779
B. Tolmie
{"title":"Nuclear Effects on Communications Systems","authors":"B. Tolmie","doi":"10.1109/MILCOM.1986.4805779","DOIUrl":"https://doi.org/10.1109/MILCOM.1986.4805779","url":null,"abstract":"A portable EMP surge arrestor test set can assure the EMP protection level at the pin level on hardened systems. EMP protection devices are susceptible to degradation caused by lightning and man-made EMI transients. Devices such as Zeners, MOV's, Gas Tubes and Filters are benign passive devices that protect electronic systems from EMP transients at the pin level. Degradation of these devices are normally not detectable by system operation. A portable EMP test set was developed that generates a transient on a protected pin and measures degradation of EMP protection devices before catastrophic failure.","PeriodicalId":126184,"journal":{"name":"MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's","volume":"139 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122382942","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
The Role of Time and Frequency Transfer in Military Communications 时间和频率转换在军事通信中的作用
MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's Pub Date : 1986-10-01 DOI: 10.1109/MILCOM.1986.4805773
H. Fruehauf
{"title":"The Role of Time and Frequency Transfer in Military Communications","authors":"H. Fruehauf","doi":"10.1109/MILCOM.1986.4805773","DOIUrl":"https://doi.org/10.1109/MILCOM.1986.4805773","url":null,"abstract":"For time and frequency, precision oscillators play a key role in today's spread spectrum and secure transmission techniques, whether for communications or navigation. Along with this technology arises the need to know time and frequency to a high degree of accuracy and to transfer it to many user locations. This paper explores these technologies and how they interact to enhance the signal media which make sophisticated communication systems possible.","PeriodicalId":126184,"journal":{"name":"MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122620010","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
Survivable Network Planning at AT&T Bell Laboratories AT&T贝尔实验室的生存性网络规划
MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's Pub Date : 1986-10-01 DOI: 10.1109/MILCOM.1986.4805760
M. Day, C. Lockhart
{"title":"Survivable Network Planning at AT&T Bell Laboratories","authors":"M. Day, C. Lockhart","doi":"10.1109/MILCOM.1986.4805760","DOIUrl":"https://doi.org/10.1109/MILCOM.1986.4805760","url":null,"abstract":"The process of planning survivable networks for government crltical communications using Public Switched Telephone Network facilities and services is presented. Requirement specification, feasibility studies, database maintenance, damage assessment, network design, performance evaluation, and Implementation planning are discussed as they relate to government agencies with communications needs during national crisis, such as massive nuclear attack on the United States. The emphasis of this paper is on the network realization process with a focus on key concepts used In emergency networking applications.","PeriodicalId":126184,"journal":{"name":"MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123904853","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
Acousto-Optic Bragg Cells for Signal Processing 用于信号处理的声光Bragg细胞
MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's Pub Date : 1986-10-01 DOI: 10.1109/MILCOM.1986.4805797
D. Penunuri
{"title":"Acousto-Optic Bragg Cells for Signal Processing","authors":"D. Penunuri","doi":"10.1109/MILCOM.1986.4805797","DOIUrl":"https://doi.org/10.1109/MILCOM.1986.4805797","url":null,"abstract":"In this paper the state of AO Bragg cell technology is discussed and the very important area of device modelling is reviewed. It is shown that certain acoustic modes may be preferred for high dynamic range applications. The design and analysis of phased array transducers is also discussed and the mathematical formalism is generalized. Some experimental results using RF sputtered ZnO film transducers are presented.","PeriodicalId":126184,"journal":{"name":"MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121248606","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
Network and Co-Site Interference Reduction for Spread Spectrum Multichannel 扩频多信道网络与共址干扰抑制
MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's Pub Date : 1986-10-01 DOI: 10.1109/MILCOM.1986.4805743
S. Olenick
{"title":"Network and Co-Site Interference Reduction for Spread Spectrum Multichannel","authors":"S. Olenick","doi":"10.1109/MILCOM.1986.4805743","DOIUrl":"https://doi.org/10.1109/MILCOM.1986.4805743","url":null,"abstract":"Tactial Multichannel Communication Systems of the 1990's will require the use of secure spread spectrum techniques. The use of ECCM techniques entails that the communication system be designed from a network point of view, to insure non-interfering operation. Spread spectrum transmission is examined in light of interference reduction techniques both from a network and a co-location point of view. It is shown that a combination of Time Division Duplexing, frequency hopping, forward error correction coding, CPFSK modulation, and synchronized transmission will provide a non-interfering solution. The use of automated frequency management, hosted on a personal computer, enhances the performance of this system especially when the frequency allocation is limited or the network topology is not a mesh. This work was performed on an internal research project for the Canadian Marconi Company.","PeriodicalId":126184,"journal":{"name":"MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128530758","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
Imperfect Code Synchronization Effects on Narrowband Interference Rejection in a DS/DPSK Spread Spectrum Receiver 不完全码同步对DS/DPSK扩频接收机窄带干扰抑制的影响
MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's Pub Date : 1986-10-01 DOI: 10.1109/MILCOM.1986.4805740
S. Goldberg, R. Iltis
{"title":"Imperfect Code Synchronization Effects on Narrowband Interference Rejection in a DS/DPSK Spread Spectrum Receiver","authors":"S. Goldberg, R. Iltis","doi":"10.1109/MILCOM.1986.4805740","DOIUrl":"https://doi.org/10.1109/MILCOM.1986.4805740","url":null,"abstract":"The impact of imperfect synchronization on the performance of prediction-error interference rejection filters in noncoherent direct-sequence (DS) spread spectrum communications is considered. Bit error rate (BER) analysis of binary DPSK data modulation used in conjuction with direct-sequence spread spectrum (DSSS) is used as a performance measure. A first order noncoherent delay-lock loop is used for the pseudonoise code tracking. Conditional BER results for the DS/DPSK system for fixed values of the code tracking error are obtained [1]. The average BER of the system is then evaluated by averaging the conditional BER expressions over the probability density function of the code tracking error. Results include the effects of both a single fading tone and narrowband gaussian interferer on the overall system performance.","PeriodicalId":126184,"journal":{"name":"MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's","volume":"309 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116000510","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
Shock and Vibration Analysis of a Communication System Subject to Nuclear Blast 核爆炸作用下通信系统的冲击与振动分析
MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's Pub Date : 1986-10-01 DOI: 10.1109/MILCOM.1986.4805780
J. Frantz, D. Kammer, M. Baker, S. Pincura
{"title":"Shock and Vibration Analysis of a Communication System Subject to Nuclear Blast","authors":"J. Frantz, D. Kammer, M. Baker, S. Pincura","doi":"10.1109/MILCOM.1986.4805780","DOIUrl":"https://doi.org/10.1109/MILCOM.1986.4805780","url":null,"abstract":"If a mobile, transportable, command, control, and communications system is expected to survive a near field nuclear explosion, the design must include protection of the equipment from the overpressure shock. The response of the equipment in a shelter subjected to nuclear overpressure for nominal overpressures of 2 psi and 4 psi has been simulated and shown to be much greater than the response to the shock and vibration environment which is normally specified for electronics--even military equipment. Including a shock isolation system in the simulation demonstrates that such an isolation system can attenuate the shock to more acceptable levels. Methods and tools are discussed which allow the simulation of the response to overpressure and the design of the isolation system.","PeriodicalId":126184,"journal":{"name":"MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116698724","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
Technology Characteristics and Concerns Arising in the Design and Fabrication of an Entire Signal Processor using Gallium Arsenide Integrated Circuits 用砷化镓集成电路设计和制造整个信号处理器的技术特点和注意事项
MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's Pub Date : 1986-10-01 DOI: 10.1109/MILCOM.1986.4805826
B. Naused, M. L. Samson, D. J. Schwab, B. Gilbert
{"title":"Technology Characteristics and Concerns Arising in the Design and Fabrication of an Entire Signal Processor using Gallium Arsenide Integrated Circuits","authors":"B. Naused, M. L. Samson, D. J. Schwab, B. Gilbert","doi":"10.1109/MILCOM.1986.4805826","DOIUrl":"https://doi.org/10.1109/MILCOM.1986.4805826","url":null,"abstract":"The Defense Advanced Research Projects Agency has, since 1980, committed considerable resources to the development of the technology base and the necessary fabrication facilities to convert digital Gallium Arsenide (Gaas) integrated circuits from a laboratory curiousity to the level of feasible demonstration in signal processors of interest to the U.S. Defense Department. This paper discusses the various GaAs transistor and gate technologies which have evolved since 1980, the strengths and deficiencies of each, and the probable uses of both the first and second generations of digital GaAs in a complex target signal processor, the AOSP. The paper also discusses the testing of GaAs components at the wafer probe, packaged part, and assembled circuit board levels, since the device speeds exceed the chip test capabilities of commercially available testers.","PeriodicalId":126184,"journal":{"name":"MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116725333","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
Communications Switching Architectures for Integrated Services Applications 集成服务应用的通信交换体系结构
MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's Pub Date : 1986-10-01 DOI: 10.1109/MILCOM.1986.4805870
Clare G. Keeney, Tracy S. Storer
{"title":"Communications Switching Architectures for Integrated Services Applications","authors":"Clare G. Keeney, Tracy S. Storer","doi":"10.1109/MILCOM.1986.4805870","DOIUrl":"https://doi.org/10.1109/MILCOM.1986.4805870","url":null,"abstract":"The integration of voice, data, image and text services is a well-established trend in communications switching systems. Recently, small switches supporting integrated services have become available for applications in departments. This allows the advanced functional capabilities in portions of large organizations without replacement of the entire large switching system. An architecture optimized for smaller installations and readily adaptable to military use is described. The critical requirements of bandwidth management, non-blocking, voice and data traffic capacities, and voice store and forward are considered. Compatibility with current and evolving commercial and military networks and ISDN are discussed. Finally, strong consideration is given to ergonomics and user interface.","PeriodicalId":126184,"journal":{"name":"MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117258141","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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