MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341)最新文献_第3页

Military communications satellite system multiplies UHF channel capacity for mobile users 军用通信卫星系统为移动用户增加了超高频信道容量

MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341) Pub Date : 1999-10-31 DOI: 10.1109/MILCOM.1999.821382

D. Wadsworth

引用次数: 5

Symbol synchronization for zero-crossing demodulator under static and mobile fading environments 静态和移动衰落环境下过零解调器的符号同步

MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341) Pub Date : 1999-10-31 DOI: 10.1109/MILCOM.1999.822700

K. Mun, H.M. Kwon

引用次数: 4

Routing in mobile ad hoc networks 移动自组织网络中的路由

MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341) Pub Date : 1999-10-31 DOI: 10.1109/MILCOM.1999.822633

N. Schult, M. Mirhakkak, D. LaRocca, J. Strater

{"title":"Routing in mobile ad hoc networks","authors":"N. Schult, M. Mirhakkak, D. LaRocca, J. Strater","doi":"10.1109/MILCOM.1999.822633","DOIUrl":"https://doi.org/10.1109/MILCOM.1999.822633","url":null,"abstract":"This paper describes a simulation-based evaluation of several unicast routing protocols tailored specifically for mobile ad hoc networks. Four protocols were evaluated: the wireless Internet routing protocol (WIRP), a link state (LS) algorithm with constrained LS updates, a distance vector variant of WIRP, and temporally ordered routing algorithm (TORA). The goal was to determine how well these routing protocols worked in specific tactical conditions, supporting a given mix of traffic. Factors varied included tactical scenario, network size, and loading. Tactical scenario included different connectivities (e.g., \"dense\" versus \"sparse\") and link fluctuation rates (e.g., \"high\" versus \"low\"). Metrics collected included average end-to end delay per application, path length, total efficiency, and fraction of user messages received. We found that certain protocols performed better in densely connected networks than in sparser networks (e.g., TORA), while some performed better in sparser networks (e.g., LS). One protocol, WIRP, performed well in both types of networks over the scenarios evaluated, Several remaining issues and areas for continued research are identified.","PeriodicalId":334957,"journal":{"name":"MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134559002","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: 78

Emitter detection and tracking algorithm for a wide band multichannel direction-finding system in the HF-band 高频宽带多通道测向系统的辐射源检测与跟踪算法

MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341) Pub Date : 1999-10-31 DOI: 10.1109/MILCOM.1999.822674

F. Quint, J. Reichert, H. Roos

引用次数: 10

Architecture for secure network voice 用于安全网络语音的架构

MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341) Pub Date : 1999-10-31 DOI: 10.1109/MILCOM.1999.821444

M. McBeth, R. Cole, R. B. Adamson

引用次数: 5

Bit pattern matched phase interference suppression in a hybrid DS/FH-system 混合DS/ fh系统中位模匹配相位干扰抑制

MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341) Pub Date : 1999-10-31 DOI: 10.1109/MILCOM.1999.821321

A. Pouttu, J. Juntti, T. Kumpumaki, M. Raustia

{"title":"Bit pattern matched phase interference suppression in a hybrid DS/FH-system","authors":"A. Pouttu, J. Juntti, T. Kumpumaki, M. Raustia","doi":"10.1109/MILCOM.1999.821321","DOIUrl":"https://doi.org/10.1109/MILCOM.1999.821321","url":null,"abstract":"We study the performance of a hybrid direct sequence frequency hopping (DS/FH) system with interference suppression in an environment where narrowband (relative to the DS spreading code bandwidth) interference perturbs the signal. In suppressing the narrowband interference, the transform domain approach has been chosen, i.e. the interference suppression takes place in the frequency domain. This approach is more practical since the duration of a frequency hop may be prohibitive to the use of time domain adaptive filtering. The aim of this paper is to study the relative performance of three different schemes used in determining and suppressing the interfered frequencies in the frequency domain, namely the exciser structure (EXC), phase interference suppressor (PIS) and a novel bit pattern matched phase interference suppressor (BPM-PIS). The interference environment changes from frequency hop to hop but during each hop the interference is considered time-invariant. To avoid spectral leaking of the interfering power, three different candidate windowing approaches are performed prior to transformation. The transformations are accomplished with the FFT- and the inverse FFT algorithms. After the interference suppression the signal is transformed back to time domain to be fed to the DS-code matched filter. The criterion used for the performance comparisons is the bit error probability as a function of E/sub b//N/sub 0/ and S/J. The numerical results were obtained by Monte Carlo simulations.","PeriodicalId":334957,"journal":{"name":"MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131003269","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

Information-management heuristics for improved coalition-operations effectiveness 提高联合作战效能的信息管理启发式方法

MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341) Pub Date : 1999-10-31 DOI: 10.1109/MILCOM.1999.822729

P. Labbé

引用次数: 3

Performance evaluation of the forward link of a CDMA cellular system CDMA蜂窝系统前向链路的性能评价

MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341) Pub Date : 1999-10-31 DOI: 10.1109/MILCOM.1999.822664

P. Balaban, D. Li, W. Turin

引用次数: 4

WIN-T-the Army's new tactical intranet win -t——陆军新的战术内部网

MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341) Pub Date : 1999-10-31 DOI: 10.1109/MILCOM.1999.821430

I. Sharret

引用次数: 9

A blind information theoretic approach to automatic signal classification 基于盲信息理论的信号自动分类方法

MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341) Pub Date : 1999-10-31 DOI: 10.1109/MILCOM.1999.822723

V.J. Stolpman, S. Paranjpe, G.C. Orsak

{"title":"A blind information theoretic approach to automatic signal classification","authors":"V.J. Stolpman, S. Paranjpe, G.C. Orsak","doi":"10.1109/MILCOM.1999.822723","DOIUrl":"https://doi.org/10.1109/MILCOM.1999.822723","url":null,"abstract":"Previous information theoretic approaches for empirical signal classification have been developed for applications where labeled training data from each of the signal sources is available. These so-called \"universal\" classifiers have been shown to be asymptotically optimal under very broad statistical conditions on the signals of interest and have been successfully applied to problems in communication signal modulation classification, face recognition for entry control, and as a CDMA receiver for wideband communications. Unfortunately, there are many important applications where training data may not be readily available or is unreliable, or is simply too costly to obtain. To address these limitations of trained systems, we present a new formulation of the universal classifier which does not require explicit training data. This new blind classifier extracts the necessary training information directly from the test data and uses it optimally in constructing the decision statistics. Examples from communication systems are presented. The results show that the performance of this new receiver exceeds that of standard \"trained\" receivers and nearly matches that of the globally optimum receiver.","PeriodicalId":334957,"journal":{"name":"MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134490331","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: 8