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Proceedings of MILCOM '93 - IEEE Military Communications Conference最新文献

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Mobile imagery systems using commercial technology 使用商业技术的移动图像系统
Proceedings of MILCOM '93 - IEEE Military Communications Conference Pub Date : 1993-10-11 DOI: 10.1109/MILCOM.1993.408700
K.A. Bouchard, W. Brandon
{"title":"Mobile imagery systems using commercial technology","authors":"K.A. Bouchard, W. Brandon","doi":"10.1109/MILCOM.1993.408700","DOIUrl":"https://doi.org/10.1109/MILCOM.1993.408700","url":null,"abstract":"Considerable improvement in satellite channel capacity utilization is achievable through application of compression technology to military communications, especially secondary imagery systems. Standards activities are producing uniform and powerful compression algorithms. In addition, the NITFS standardizes the format of digital imagery and imagery related data. NITFS incorporates JPEG and will incorporate other compression algorithms in the future.<<ETX>>","PeriodicalId":323612,"journal":{"name":"Proceedings of MILCOM '93 - IEEE Military Communications Conference","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121061263","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 requirements for a satellite based National Research and Education Network 基于卫星的国家研究和教育网络的网络需求
Proceedings of MILCOM '93 - IEEE Military Communications Conference Pub Date : 1993-10-11 DOI: 10.1109/MILCOM.1993.408672
M. Keaton, R. Buehrer, S. Kwatra, J. Kim
{"title":"Network requirements for a satellite based National Research and Education Network","authors":"M. Keaton, R. Buehrer, S. Kwatra, J. Kim","doi":"10.1109/MILCOM.1993.408672","DOIUrl":"https://doi.org/10.1109/MILCOM.1993.408672","url":null,"abstract":"All of the various research networks throughout the US are planned to be integrated into a single, nationwide research network by the mid 1990's. This network will be the third stage of what will be called the National Research and Education Network (NREN). A wide-band communications satellite creates a distance insensitive link between all users, regardless of their locations. In order to assure that a realistic satellite is designed for the NREN, good estimates of the network requirements are needed. This paper outlines the results of a study performed to determine the NREN requirements.<<ETX>>","PeriodicalId":323612,"journal":{"name":"Proceedings of MILCOM '93 - IEEE Military Communications Conference","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121020514","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
Bounds on performance of RS coded hybrid DS-SFH spread spectrum multiple access for indoor wireless communications RS编码混合DS-SFH扩频多址室内无线通信性能界限
Proceedings of MILCOM '93 - IEEE Military Communications Conference Pub Date : 1993-10-11 DOI: 10.1109/MILCOM.1993.408552
Z. Tan
{"title":"Bounds on performance of RS coded hybrid DS-SFH spread spectrum multiple access for indoor wireless communications","authors":"Z. Tan","doi":"10.1109/MILCOM.1993.408552","DOIUrl":"https://doi.org/10.1109/MILCOM.1993.408552","url":null,"abstract":"A technique for determining the upper bounds on the performance of RS coded hybrid DS-SFH SSMA (spread spectrum multiple access) systems with noncoherent DPSK and binary FSK modulation over indoor Rician or Rayleigh multipath fading channels has been developed. An RS decoding algorithm using the channel side information about the presence or absence of multipath interference and multiple access interference is also investigated. Through performance comparisons between various SSMA systems, it can be obtained that systems with dominant DS component outperform those with dominant FH component for the constant spreading factor. RS coded hybrid SSMA system gives a significant improvement in the average symbol error probability when compared to uncoded one. A lower coding rate perform better than higher rate. Given a fixed coding rate, RS code with large signaling alphabets is a better choice. RS decoding algorithm using side information or fixed threshold offers significant system performance improvement over the usual RS decoding algorithm without using side information.<<ETX>>","PeriodicalId":323612,"journal":{"name":"Proceedings of MILCOM '93 - IEEE Military Communications Conference","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116698265","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
Evaluation and optimization of data link protocols for HF data communication systems 高频数据通信系统中数据链路协议的评估与优化
Proceedings of MILCOM '93 - IEEE Military Communications Conference Pub Date : 1993-10-11 DOI: 10.1109/MILCOM.1993.408544
W. Furman, D. McRae
{"title":"Evaluation and optimization of data link protocols for HF data communication systems","authors":"W. Furman, D. McRae","doi":"10.1109/MILCOM.1993.408544","DOIUrl":"https://doi.org/10.1109/MILCOM.1993.408544","url":null,"abstract":"The authors discuss channel behavior based on measured signal and noise variations. A simulation model is presented which replicates the observed variations. The results of applying the simulation model to three different data link protocols, including a new fast automatic link establishment (ALE) technique are discussed.<<ETX>>","PeriodicalId":323612,"journal":{"name":"Proceedings of MILCOM '93 - IEEE Military Communications Conference","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121706894","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
The simulation of a two-dimensional spread spectrum system with locally optimal processing 具有局部最优处理的二维扩频系统的仿真
Proceedings of MILCOM '93 - IEEE Military Communications Conference Pub Date : 1993-10-11 DOI: 10.1109/MILCOM.1993.408504
W. Grimm, J. Grimm, D. Ucci
{"title":"The simulation of a two-dimensional spread spectrum system with locally optimal processing","authors":"W. Grimm, J. Grimm, D. Ucci","doi":"10.1109/MILCOM.1993.408504","DOIUrl":"https://doi.org/10.1109/MILCOM.1993.408504","url":null,"abstract":"The authors present the performance results of a two-dimensional spread spectrum communications system employing robust locally optimal (LO) maximum likelihood (ML) detection. The system was simulated using the signal processing worksystem (SPW). The preliminary results indicate that the LO nonlinear processor provides a performance improvement over traditional demodulation methods when the spread spectrum system is subjected to a continuous wave (CW) jammer. In addition, the performance of the LO processor is shown to depend on the number of chips per information bit and the ratio of the jammer frequency to the transmitted signal's carrier frequency.<<ETX>>","PeriodicalId":323612,"journal":{"name":"Proceedings of MILCOM '93 - IEEE Military Communications Conference","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125096601","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
A LAN-based communications processor for tactical applications 战术应用的基于局域网的通信处理器
Proceedings of MILCOM '93 - IEEE Military Communications Conference Pub Date : 1993-10-11 DOI: 10.1109/MILCOM.1993.408691
M. Sanders
{"title":"A LAN-based communications processor for tactical applications","authors":"M. Sanders","doi":"10.1109/MILCOM.1993.408691","DOIUrl":"https://doi.org/10.1109/MILCOM.1993.408691","url":null,"abstract":"Today's Army Tactical Command and Control System consists of systems that rely on a widely disparate set of communications media equipment, communications networks, and information exchange protocols to exchange information across the battlefield. The future trend in tactical communications is to provide a seamless information network which bridges the communications networks and protocols through the use of a communications processing capability. This communications processing capability must provide the necessary connectivity to the local area network (LAN) and wide area network (WAN) systems in addition to supporting the needed routing and message translation functions. A LAN-based communications processor (LBCP) offers a comprehensive set of communications services, allowing for a single, interoperable communications gateway to serve all of the functional areas. It provides a shared communications resource, furnishes flexible and reconfigurable communications interfaces, eliminates the need for multiple and duplicate interface elements, and allows accessibility to multiple tactical data networks (i.e. MPN, SINCGARS, ADDS). This paper presents an approach for providing a communications processor for tactical communications networks.<<ETX>>","PeriodicalId":323612,"journal":{"name":"Proceedings of MILCOM '93 - IEEE Military Communications Conference","volume":"411 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122861094","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
Satellite communications for fighters 战斗机卫星通信
Proceedings of MILCOM '93 - IEEE Military Communications Conference Pub Date : 1993-10-11 DOI: 10.1109/MILCOM.1993.408641
A. Johnson
{"title":"Satellite communications for fighters","authors":"A. Johnson","doi":"10.1109/MILCOM.1993.408641","DOIUrl":"https://doi.org/10.1109/MILCOM.1993.408641","url":null,"abstract":"WIth the demise of the Soviet Union, the threat to the US and its allies has changed. Instead of a single advisory and a defined theater of battle, US forces face worldwide deployment in support of peace keeping activities and regional conflicts. In the new world order, US Forces will require flexible, worldwide, jam-resistant, low-probability-of intercept communications, including space-premium fighters. The integrated CNI subsystem (ICNIS), which includes Milstar satellite communications, could satisfy that need by upgrading the integrated avionics suite of existing fighters. Many of the Milstar functions, such as frequency conversion, signal processing, detection, display, and control could be performed in the ICNIS common avionics modules. The Milstar antenna for the fighter would be a hybrid, solid-state phased array being developed by Rome Laboratory for the Milstar frequency band-20 GHz receive and 44 GHz transmit. A feasibility study for the integrated CNI subsystem is currently underway. A brassboard development, demonstration, and flight test is also underway for the integrated tactical Milstar to demonstrate the Milstar satellite communications functions as part of a common avionics suite.<<ETX>>","PeriodicalId":323612,"journal":{"name":"Proceedings of MILCOM '93 - IEEE Military Communications Conference","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131635067","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
A distributed architecture for cooperative management of strategic communication networks 战略通信网络协同管理的分布式体系结构
Proceedings of MILCOM '93 - IEEE Military Communications Conference Pub Date : 1993-10-11 DOI: 10.1109/MILCOM.1993.408694
R. Weihmayer, I. Ghaznavi-Collins, P. F. Sheridan
{"title":"A distributed architecture for cooperative management of strategic communication networks","authors":"R. Weihmayer, I. Ghaznavi-Collins, P. F. Sheridan","doi":"10.1109/MILCOM.1993.408694","DOIUrl":"https://doi.org/10.1109/MILCOM.1993.408694","url":null,"abstract":"The authors developed a testbed for cooperative distributed problem solving, Testbed Environment for Autonomous Multiagent Cooperative Problem Solving (TEAM-CPS), and successfully applied it to public telephony networks. This paper discusses an extension of this work to military strategic defense systems (SDS). A conceptual SDS model is described. It includes distributed network managers that must cooperatively allocate bandwidth to computer applications in support of critical pre-engagement missile defense functions.<<ETX>>","PeriodicalId":323612,"journal":{"name":"Proceedings of MILCOM '93 - IEEE Military Communications Conference","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115150790","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: 6
Using a survivability framework when planning and developing survivable communications networks 在规划和开发生存性通信网络时使用生存性框架
Proceedings of MILCOM '93 - IEEE Military Communications Conference Pub Date : 1993-10-11 DOI: 10.1109/MILCOM.1993.408525
T. Sellers, L. Fulton
{"title":"Using a survivability framework when planning and developing survivable communications networks","authors":"T. Sellers, L. Fulton","doi":"10.1109/MILCOM.1993.408525","DOIUrl":"https://doi.org/10.1109/MILCOM.1993.408525","url":null,"abstract":"Network reliability and survivability are becoming increasingly important to users, as telecommunication services become an essential part of business, national security, and public health and safety. The authors present a structured approach to planning and evolving survivable and reliable telecommunications networks.<<ETX>>","PeriodicalId":323612,"journal":{"name":"Proceedings of MILCOM '93 - IEEE Military Communications Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131833699","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
A modified IJF-OQPSK modulation technique 一种改进的IJF-OQPSK调制技术
Proceedings of MILCOM '93 - IEEE Military Communications Conference Pub Date : 1993-10-11 DOI: 10.1109/MILCOM.1993.408682
F. Lin, T. Song, S. Jiang
{"title":"A modified IJF-OQPSK modulation technique","authors":"F. Lin, T. Song, S. Jiang","doi":"10.1109/MILCOM.1993.408682","DOIUrl":"https://doi.org/10.1109/MILCOM.1993.408682","url":null,"abstract":"The IJF-OQPSK modulation technique achieves good spectral efficiency in digital communication systems. In this paper, an improved modulation technique called Modified Intersymbol-Interference and Jitter Free OQPSK (MIJF-OQPSK) is presented. Comparing with IJF-OQPSK, the MIJF-OQPSK obtains more superior property: the power spectral roll-off out-of-band is lower than 15 dB; the envelope fluctuation of the modulated signal amplitude drops down to 1.3 dB; and the spectral spreading is smaller in hard-limited channels.<<ETX>>","PeriodicalId":323612,"journal":{"name":"Proceedings of MILCOM '93 - IEEE Military Communications Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134642188","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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