MILCOM 97 MILCOM 97 Proceedings最新文献_第5页

SPEAKeasy II-an IPT approach to software programmable radio development SPEAKeasy ii -软件可编程无线电开发的IPT方法

MILCOM 97 MILCOM 97 Proceedings Pub Date : 1997-11-02 DOI: 10.1109/MILCOM.1997.644961

R. Vidano

{"title":"SPEAKeasy II-an IPT approach to software programmable radio development","authors":"R. Vidano","doi":"10.1109/MILCOM.1997.644961","DOIUrl":"https://doi.org/10.1109/MILCOM.1997.644961","url":null,"abstract":"The concept of integrated product teams (IPT) that use to the greatest extent possible commercial technologies and practices has been demonstrated by the SPEAKeasy program to meet aggressive goals for the development of software programmable multiband multimode radio development. IPTs were put in place for management, systems, RF, modem, INFOSEC, internetworking, and control to develop an open architecture, simultaneous multichannel, multiband multimode software programmable/re-programmable networked and secure radio system that operates continuously and continuously in the radio spectrum from 2 MHz to 2 GHz. Within fifteen months after contract initiation from July 1995 to September 1996 the SPEAKeasy team demonstrated the first software embedded waveform on a 2-channel platform. This was achieved by using architectural principles from the PC community coupled with state of the art technology developments from the wireless communications community. After the first waveform was successfully demonstrated it was shown that additional waveforms could be integrated within the SPEAKeasy platform in a matter of a few days for each new waveform. In March of 1997 the SPEAKeasy MBMMR was shown to successfully interoperate with HF, SINCGARS, civil aviation, Have Quick II, and UHF SATCOM radios during Task Force XXI.","PeriodicalId":351392,"journal":{"name":"MILCOM 97 MILCOM 97 Proceedings","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130899366","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: 9

Median-shift sign statistics for constant signal detection in impulsive noise environment 脉冲噪声环境下恒定信号检测的中位偏移符号统计

MILCOM 97 MILCOM 97 Proceedings Pub Date : 1997-11-02 DOI: 10.1109/MILCOM.1997.644994

H. Kim, I. Song, K. S. Kim, Y. Kim, S. Park

引用次数: 0

Prioritized state-dependent buffer-management schemes in ATM switch ATM交换机中依赖于状态的优先级缓冲管理方案

MILCOM 97 MILCOM 97 Proceedings Pub Date : 1997-11-02 DOI: 10.1109/MILCOM.1997.648760

M. Bromirski, J. Haratym

引用次数: 1

Low bit rate speech compression using hidden Markov modeling 使用隐马尔可夫建模的低比特率语音压缩

MILCOM 97 MILCOM 97 Proceedings Pub Date : 1997-11-02 DOI: 10.1109/MILCOM.1997.648774

S. Bardenhagen, K. L. Brown, R. Braun

引用次数: 2

Nonparametric channel identification and multichannel equalization for narrowband digital communications 窄带数字通信的非参数信道识别和多信道均衡

MILCOM 97 MILCOM 97 Proceedings Pub Date : 1997-11-02 DOI: 10.1109/MILCOM.1997.644866

T. Thomas, M. Zoltowski

{"title":"Nonparametric channel identification and multichannel equalization for narrowband digital communications","authors":"T. Thomas, M. Zoltowski","doi":"10.1109/MILCOM.1997.644866","DOIUrl":"https://doi.org/10.1109/MILCOM.1997.644866","url":null,"abstract":"We previously presented a novel multichannel linear equalization scheme for a TDMA based cellular/PCS communication system commensurate with the US IS-136 standard. This scheme assumes at least two different channels with oversampling at each channel. For a given channel, it was shown that the frequency response of the associated RF multipath channel may be well approximated over the raised cosine spectral bandwidth by a small number of sampled-spaced (not symbol-spaced) filter coefficients encompassing the multipath delay spread. As a result, multichannel (zero forcing) linear equalization may be effected via a small number of sample-spaced taps at each channel encompassing the multipath delay spread which, in a typical urban cellular environment, is a fraction of the \"mainlobe\" of the square-root spectral raised cosine pulse employed in the IS-136 standard. This paper shows how a decision feedback equalizer (DFE) may be constructed from the small number of sampled-spaced filter coefficients used to match the frequency response of the RF multipath channel associated with each channel. Simulations involving two beam channels are presented comparing the performance of the sampled-spaced multichannel linear equalizer with the resulting DFE. Averaging over an ensemble of multipath realizations, it is shown that the two schemes have roughly the same performance with respect to the mean square error of the output signal constellation.","PeriodicalId":351392,"journal":{"name":"MILCOM 97 MILCOM 97 Proceedings","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126427776","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 simple framework for filtering queued SMTP mail (cyberwar countermeasures) 用于过滤排队SMTP邮件的简单框架(网络战争对策)

MILCOM 97 MILCOM 97 Proceedings Pub Date : 1997-11-02 DOI: 10.1109/MILCOM.1997.644877

Tim Bass, G. Watt

引用次数: 12

Network management of wireless tactical networks 无线战术网络的网络管理

MILCOM 97 MILCOM 97 Proceedings Pub Date : 1997-11-02 DOI: 10.1109/MILCOM.1997.645028

C. Pomalaza-ráez

{"title":"Network management of wireless tactical networks","authors":"C. Pomalaza-ráez","doi":"10.1109/MILCOM.1997.645028","DOIUrl":"https://doi.org/10.1109/MILCOM.1997.645028","url":null,"abstract":"This paper presents a network layer protocol developed for tactical multimedia networks in the forward area. The proposed network is an autonomous fully distributed wireless ATM network. The structure of the proposed network is hierarchical and allows for rapid deployment and dynamic reconfiguration of wireless stations. Nodes are organized into clusters. The cluster heads are analogous to the base stations in a conventional ATM and they act as the local coordinators to support services that include conventional data applications as well as multimedia (video, voice and data) applications with QoS (quality-of-service) guarantees. The proposed protocols are also intended to provide seamless internetworking with other wired ATM local and wide area networks. The algorithms are distributed for simple implementation and ease of mobility management. A wireless VP/VC concept is described to provide ATM cell routing and connections in the network. Routing and the provision for efficient utilization of the available bandwidth are major problems for supporting multimedia traffic in a wireless network. Call management, network management, and signaling are designed for simplicity. Restoration schemes are also proposed to resolve the connectivity problems associated with link or node failures.","PeriodicalId":351392,"journal":{"name":"MILCOM 97 MILCOM 97 Proceedings","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114188464","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

Sensitivity of modulation index in satellite communication link analysis 卫星通信链路分析中调制指标的灵敏度

MILCOM 97 MILCOM 97 Proceedings Pub Date : 1997-11-02 DOI: 10.1109/MILCOM.1997.646754

Junho Choi

引用次数: 1

Recursive orthogonal least squares method and its application in non-linear adaptive filtering 递推正交最小二乘法及其在非线性自适应滤波中的应用

MILCOM 97 MILCOM 97 Proceedings Pub Date : 1997-11-02 DOI: 10.1109/MILCOM.1997.644996

Shue-Lee Chang, T. Ogunfunmi

引用次数: 3

Multicasting experiments in tactical operations 战术作战中的多播实验

MILCOM 97 MILCOM 97 Proceedings Pub Date : 1997-11-02 DOI: 10.1109/MILCOM.1997.644962

E. Craighill, J. Staba

引用次数: 1