发布求助
文献互助 智能选刊 最新文献

MILCOM 1985 - IEEE Military Communications Conference最新文献

筛选
英文 中文
Performance of Selected Coded Direct-Sequence Receiver Structures in Pulsed Interference 选择编码直接序列接收机结构在脉冲干扰下的性能
MILCOM 1985 - IEEE Military Communications Conference Pub Date : 1985-12-01 DOI: 10.1109/MILCOM.1985.4795105
K. Matis, J. Modestino
{"title":"Performance of Selected Coded Direct-Sequence Receiver Structures in Pulsed Interference","authors":"K. Matis, J. Modestino","doi":"10.1109/MILCOM.1985.4795105","DOIUrl":"https://doi.org/10.1109/MILCOM.1985.4795105","url":null,"abstract":"We consider the performance of short constraint-length convolutional codes in conjunction with coherent BPSK direct-sequence spread-spectrum modulation in a variety of pulsed interference scenarios. We explore the use of several types of imperfect interference estimation mechanisms and the resulting impact on Viterbi decoder bit error probability performance. Our digital receiver structures eliminate the need for a fast-acting analog AGC circuit which is often susceptable to spoofing. For the short constraint-length codes under consideration, we provide upper bounds on bit error probability performance under idealized channel modeling assumptions. Departures from these idealized assumptions are analyzed through extensive Monte-Carlo computer simulation.","PeriodicalId":222578,"journal":{"name":"MILCOM 1985 - IEEE Military Communications Conference","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130123551","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
RLPM -- A Communicator's Planning Tool RLPM——传播者的计划工具
MILCOM 1985 - IEEE Military Communications Conference Pub Date : 1985-10-01 DOI: 10.1109/MILCOM.1985.4795051
J. Aasterud
{"title":"RLPM -- A Communicator's Planning Tool","authors":"J. Aasterud","doi":"10.1109/MILCOM.1985.4795051","DOIUrl":"https://doi.org/10.1109/MILCOM.1985.4795051","url":null,"abstract":"This paper describes a Radio Link Performance Model (RLPM) that can be used to predict the effectiveness of analog and digital surface and air-to-ground radio communication links operating in the LF through UHF bands. The model emphasizes the computation of meaningful performance measures and uses color graphics to display the results in an easily-understood manner. It has a user-friendly interface that permits data to be entered in an interactive manner, error-trapping routines are used to minimize the chances of program abort due to key stroke errors. It is written in FORTRAN 77 and runs on an HP minicomputer.","PeriodicalId":222578,"journal":{"name":"MILCOM 1985 - IEEE Military Communications Conference","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127207683","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
General Methodologies for Assessing EMI/EMC in Complex Electronic Circuits and Systems 评估复杂电子电路和系统中EMI/EMC的一般方法
MILCOM 1985 - IEEE Military Communications Conference Pub Date : 1985-10-01 DOI: 10.1109/MILCOM.1985.4794981
William E. Slauson, B. Lessard, Michael T. Hurley, R. Bossart, C. Paludi
{"title":"General Methodologies for Assessing EMI/EMC in Complex Electronic Circuits and Systems","authors":"William E. Slauson, B. Lessard, Michael T. Hurley, R. Bossart, C. Paludi","doi":"10.1109/MILCOM.1985.4794981","DOIUrl":"https://doi.org/10.1109/MILCOM.1985.4794981","url":null,"abstract":"This paper introduces the procedures for utilizing two techniques, namely Fault Tree Analysis (FTA) and Electromagnetic Effects Criticality Analysis (EMECA), for assessing EMI/EMC in complex electronic circuits and systems. Application of these techniques are demonstrated by means of examples where, because of the use of digital, high-speed, high-density integrated circuit technologies, EMI/EMC assessments by traditional deterministic methods are inappropriate. The results illustrate the probability of achieving EMC while accounting for the statistical nature of EMI.","PeriodicalId":222578,"journal":{"name":"MILCOM 1985 - IEEE Military Communications Conference","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124916510","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 Intersystem: Internetworking for Space Systems 互联系统:空间系统的互联网络
MILCOM 1985 - IEEE Military Communications Conference Pub Date : 1985-10-01 DOI: 10.1109/MILCOM.1985.4795057
C. Landauer
{"title":"The Intersystem: Internetworking for Space Systems","authors":"C. Landauer","doi":"10.1109/MILCOM.1985.4795057","DOIUrl":"https://doi.org/10.1109/MILCOM.1985.4795057","url":null,"abstract":"This paper is a description of the Intersystem, which is a mechanism for internetworking among existing and planned military satellite communication systems. The communication systems interconnected with this mechanism are called member systems, and the interconnected set of communication systems is called the Intersystem. The Intersystem is implemented with higher layer protocols that impose a common organization on the different signaling conventions, so that end users of different systems can communicate with each other. The Intersystem provides its coordination of member system access and resource requests with Intersystem Resource Controllers (IRCs), which are processors that implement the Intersystem protocols and have interfaces to the member systems' own access and resource control mechanisms. The IRCs are connected to each other to form the IRC Subnetwork. Terminals request services from the IRC Subnetwork using the Intersystem Access Control Protocols, and the IRC Subnetwork responses to the requests are coordinated using the RCRC (Resource Controller to Resource Controller) Protocols.","PeriodicalId":222578,"journal":{"name":"MILCOM 1985 - IEEE Military Communications Conference","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124984341","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
Angle Diversity Reception for LOS Digital Microwave Radio LOS数字微波无线电的角度分集接收
MILCOM 1985 - IEEE Military Communications Conference Pub Date : 1985-10-01 DOI: 10.1109/MILCOM.1985.4795056
R. Hubbard
{"title":"Angle Diversity Reception for LOS Digital Microwave Radio","authors":"R. Hubbard","doi":"10.1109/MILCOM.1985.4795056","DOIUrl":"https://doi.org/10.1109/MILCOM.1985.4795056","url":null,"abstract":"Digital transmission over line-of-sight (LOS) microwave links is impaired at times by multipath fading in the propagation channel. The multipath can be a result of surface reflections, or induced by atmospheric anomalies such as strong ducting gradients. One principal method of overcoming the effects of multipath is to use a form of diversity transmission and reception. The common forms of diversity in LOS links are frequency and space, or combinations of both in severe cases. This paper describes an alternative form of diversity using angle (of arrival) diversity at the receiving terminal. This form of diversity has the advantages of a) limiting the antenna elevations required for space diversity, and b) spectral efficiency when compared with frequency diversity.","PeriodicalId":222578,"journal":{"name":"MILCOM 1985 - IEEE Military Communications Conference","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125972813","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
A Practical Method of Obtaining Constant Convergence-Rates in LMS Adaptive Arrays 一种获得LMS自适应阵列恒定收敛速率的实用方法
MILCOM 1985 - IEEE Military Communications Conference Pub Date : 1985-10-01 DOI: 10.1109/MILCOM.1985.4795082
Marek Klemes
{"title":"A Practical Method of Obtaining Constant Convergence-Rates in LMS Adaptive Arrays","authors":"Marek Klemes","doi":"10.1109/MILCOM.1985.4795082","DOIUrl":"https://doi.org/10.1109/MILCOM.1985.4795082","url":null,"abstract":"This paper shows a practical method of eliminating the old problem of widely-disparate modal convergence rates in LMS (Least-Mean-Squares) adaptive arrays. The method is mathematically based on the Newton-Raphson iteration technique of finding zeros of a function. The practical realization is based on an extension of Compton's improved-feedback adaptive loop. It is shown how this modificationt results in constant and equal modal convergence rates in an adaptive array. The improved algorithm is also compared to Compton's original improved-feedback loop and to a \"standard\" LMS adaptive array. Preliminary experimental results are also shown to substantiate some of the analysis.","PeriodicalId":222578,"journal":{"name":"MILCOM 1985 - IEEE Military Communications Conference","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126120337","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
Integration of Digital, Voice, and Video Data on a Multilevel Secure Fiber Optic Network 在多级安全光纤网络上集成数字、语音和视频数据
MILCOM 1985 - IEEE Military Communications Conference Pub Date : 1985-10-01 DOI: 10.1109/MILCOM.1985.4794965
J. Nagaki, Arthur W. Van Ausdal
{"title":"Integration of Digital, Voice, and Video Data on a Multilevel Secure Fiber Optic Network","authors":"J. Nagaki, Arthur W. Van Ausdal","doi":"10.1109/MILCOM.1985.4794965","DOIUrl":"https://doi.org/10.1109/MILCOM.1985.4794965","url":null,"abstract":"An advanced technology Local Area Network is being developed for application to military C3I systems. In addition to incorporating Multilevel Security controls, the network utilizes wavelength division multiplexed fiber optics to provide simultaneous transmission of digital, voice, and video traffic at data rates up to 150 Mbps. Interfaces to heterogeneous serial devices, work stations, and processors are being developed. User services embedded in the network include terminal connection, interprocess communication, file transfer, electronic mail, voice connection and conferencing, video distribution, and circuit switched stream data distribution. DOD standard protocols are embedded in the network. The network is designed to meet the DOD Computer Security Center's Al multilevel security criteria. The IEEE 802.4 token bus protocol is used for network digital services. Initial performance demonstrations of this IR&D project have been completed. Full MLS functionality is projected for year-end 1985.","PeriodicalId":222578,"journal":{"name":"MILCOM 1985 - IEEE Military Communications Conference","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125585456","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
Adaptation of Spread Spectrum Digital Voice Radios 扩频数字话音无线电的自适应
MILCOM 1985 - IEEE Military Communications Conference Pub Date : 1985-10-01 DOI: 10.1109/MILCOM.1985.4794936
I. Smith
{"title":"Adaptation of Spread Spectrum Digital Voice Radios","authors":"I. Smith","doi":"10.1109/MILCOM.1985.4794936","DOIUrl":"https://doi.org/10.1109/MILCOM.1985.4794936","url":null,"abstract":"Integrated spread spectrum modem and digital voice processor designs can achieve processing gain adaptation without communication interruption. Only those adaptations that hold constant PN chip and/or FH hop rate to avoid modem resynchronization, are considered useful. Sync outages can render modem processing gain advantages ineffective. Variable chip embedding, data redundancy, and header insertion signaling techniques can modify modem processing gain without disturbing operation of the interfacing digital voice processor.","PeriodicalId":222578,"journal":{"name":"MILCOM 1985 - IEEE Military Communications Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122644621","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
Bit Error Rate Performance of a DS/DPSK Spread Spectrum Receiver DS/DPSK扩频接收机误码率性能研究
MILCOM 1985 - IEEE Military Communications Conference Pub Date : 1985-10-01 DOI: 10.1109/MILCOM.1985.4794929
S. Goldberg, R. Iltis
{"title":"Bit Error Rate Performance of a DS/DPSK Spread Spectrum Receiver","authors":"S. Goldberg, R. Iltis","doi":"10.1109/MILCOM.1985.4794929","DOIUrl":"https://doi.org/10.1109/MILCOM.1985.4794929","url":null,"abstract":"A bit error rate (BER) analysis of binary DPSK data modulation used in conjunction with direct sequence spread sprectrum (DSSS) is presented. A first order noncoherent delay-lock loop is used for the pseudonoise code tracking. Conditional BER results for the DS/DPSK systems for fixed values of the code tracking error are obtained. 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. These results are supplemented by considering the effects of a narrowband fading tone interferer on the overall system performance.","PeriodicalId":222578,"journal":{"name":"MILCOM 1985 - IEEE Military Communications Conference","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121887328","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
Laser Crosslink Configurations for RF Satellite Communications Systems 射频卫星通信系统的激光交联配置
MILCOM 1985 - IEEE Military Communications Conference Pub Date : 1985-10-01 DOI: 10.1109/MILCOM.1985.4794946
K. Sebacher, S. Lambert, J. A. Pautler, J. Carter
{"title":"Laser Crosslink Configurations for RF Satellite Communications Systems","authors":"K. Sebacher, S. Lambert, J. A. Pautler, J. Carter","doi":"10.1109/MILCOM.1985.4794946","DOIUrl":"https://doi.org/10.1109/MILCOM.1985.4794946","url":null,"abstract":"Predictions of future satellite communications traffic indicate an increased capacity for satellite communications systems is required. Crosslinks between satellites provide improvements in communications throughput for these systems. Crosslinks also increase system flexibility and remove the dependence of world-wide information flow on relay ground stations located outside the continental United States. Laser crosslinks provide the additional advantage of eliminating susceptibility to space-based or ground-based jammers. Laser terminals are also smaller and require smaller antennas than a radio frequency (RF) terminal. This paper describes the advantages of adding laser crosslinks to RF satellite communications systems. Characteristics of the required RF/optical interfaces on-board the satellites are addressed. Terminal configurations that provide reliable, accurate laser communications at high data rates are described.","PeriodicalId":222578,"journal":{"name":"MILCOM 1985 - IEEE Military Communications Conference","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128298312","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
下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信