Proceedings of TCC'94 - Tactical Communications Conference最新文献_第5页

A new error control scheme for high speed networks 一种新的高速网络误差控制方案

Proceedings of TCC'94 - Tactical Communications Conference Pub Date : 1994-05-10 DOI: 10.1109/TCC.1994.472100

F. Gong, G. Parulkar

引用次数: 2

Achieving open interoperability in tactical remoted systems with COTS technology 利用COTS技术实现战术远程系统的开放互操作性

Proceedings of TCC'94 - Tactical Communications Conference Pub Date : 1994-05-10 DOI: 10.1109/TCC.1994.472087

E. Klasén, L.J. Levin, B. Denny, J. Cunningham

{"title":"Achieving open interoperability in tactical remoted systems with COTS technology","authors":"E. Klasén, L.J. Levin, B. Denny, J. Cunningham","doi":"10.1109/TCC.1994.472087","DOIUrl":"https://doi.org/10.1109/TCC.1994.472087","url":null,"abstract":"Interoperability between systems is increasingly important within the military community. Traditionally, many tactical systems have been implemented as self-contained entities, incapable or minimally capable of interoperation with systems of different versions, vendors, and military branches. This has certainly been true of remoted signals intelligence (SIGINT) systems. Custom protocols and architectures, unique to each system, have frequently been justified as necessary to meet operations requirements. The real-time sharing of resources or data between systems has not been feasible. This approach is costly and inflexible. This paper describes the approach taken by SRI International (SRI) to address this problem. Our goal was to define an interoperability architecture for remoted SIGINT systems; this architecture must be open and based on international standards and commercially available products. Key to our architecture is the use at the application layer of the ISO 9506 Manufacturing Message Specification (MMS) protocol standard for the control of remote devices. We validated our approach by implementing a demonstration system consisting primarily of commercial off-the-shelf (COTS) hardware and software products, within a testbed environment. The results of this effort have shown that open, interoperable systems can be developed with commercial technology, thereby reducing implementation effort and cost. The structure of this paper is as follows. First, we present an example of the problem of interoperability in tactical remoted systems, and specifically within tactical airborne SIGINT systems; we then present our method for solving this problem through the use of open COTS technology; and finally, we summarize the lessons learned from taking this approach.<<ETX>>","PeriodicalId":206310,"journal":{"name":"Proceedings of TCC'94 - Tactical Communications Conference","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115072393","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

Spatial adaptive filtering for LPI signal detection LPI信号检测的空间自适应滤波

Proceedings of TCC'94 - Tactical Communications Conference Pub Date : 1994-05-10 DOI: 10.1109/TCC.1994.472092

K. W. Forsythe, P. Monticciolo, J. Sklar

引用次数: 0

ATM-providing broadband services to the warrior 自动取款机为战士提供宽带服务

Proceedings of TCC'94 - Tactical Communications Conference Pub Date : 1994-05-10 DOI: 10.1109/TCC.1994.472088

T.T. Piper, D. L. Hagen

{"title":"ATM-providing broadband services to the warrior","authors":"T.T. Piper, D. L. Hagen","doi":"10.1109/TCC.1994.472088","DOIUrl":"https://doi.org/10.1109/TCC.1994.472088","url":null,"abstract":"Today's tactical communication systems are limited in data rate and use reserved bandwidth assignments which restrict data and video services. Operation Desert Storm demonstrated a much more extensive desire for distribution of video, imagery, computer text, and data files than existing tactical systems are capable of providing. The increasing need for imagery will drive the requirement for more bandwidth in tactical links. Desire for full-motion video will follow. Asynchronous Transfer Mode (ATM) allows allocating/re-allocating bandwidth on demand and the carrying of nearly any mix of voice, data, and video over a common communication network. The major difficulty in the application of ATM to the tactical environment is the high channel bit error rate on tactical radio links. There are also some features which must be added to a commercially designed ATM network to satisfy military requirements. This paper explores the feasibility of providing a basic communications utility for disadvantaged tactical users, with a specified residual cell error rate on a shared trunk. Users having more stringent error requirements can insert additional user-provided error protection in the information field. It is shown that the probability of cell misdelivery can be controlled by adding more CRC (cyclic redundancy check) bytes to the ATM cell header.<<ETX>>","PeriodicalId":206310,"journal":{"name":"Proceedings of TCC'94 - Tactical Communications Conference","volume":"590 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130726918","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

Sensitivity loss of real-time DFT-based frequency excision with direct sequence spread-spectrum communication 直接序列扩频通信中基于dft的实时频率剔除的灵敏度损失

Proceedings of TCC'94 - Tactical Communications Conference Pub Date : 1994-05-10 DOI: 10.1109/TCC.1994.472103

J. Young, J. Lehnert

{"title":"Sensitivity loss of real-time DFT-based frequency excision with direct sequence spread-spectrum communication","authors":"J. Young, J. Lehnert","doi":"10.1109/TCC.1994.472103","DOIUrl":"https://doi.org/10.1109/TCC.1994.472103","url":null,"abstract":"The capacity of direct sequence spread-spectrum modulation to reject narrow-band interference can be significantly improved by eliminating narrowband energy at the receiver (frequency excision) using algorithms that operate on the real time discrete Fourier transform of the received signal (RT-DFT-Based). These algorithms have the potential to adapt very quickly to a change in interference spectrum and eliminate multiple interferers, but to do this the decision of which frequency bins to excise must be made based on a very short observation time. Under these circumstances, the number of bins excised can be much larger than the number of bins containing narrow-band interference. The receive signal strength loss due to \"over-excision\" can be very significant and limits receive sensitivity. This paper shows theoretical over-excision losses of several heuristic algorithms. The sensitivity loss due to time weighting (or windowing) is presented for variable overlap and several different windows. These theoretical results are confirmed with simulation results and can be used to project sensitivity of PN spread spectrum systems that are located in a band that is also used by narrow-band systems.<<ETX>>","PeriodicalId":206310,"journal":{"name":"Proceedings of TCC'94 - Tactical Communications Conference","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117145324","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

Telemetry: enhancing tactical network management 遥测:加强战术网络管理

Proceedings of TCC'94 - Tactical Communications Conference Pub Date : 1994-05-10 DOI: 10.1109/TCC.1994.472086

Joshua R. Knisley, Henry A. Werchan

{"title":"Telemetry: enhancing tactical network management","authors":"Joshua R. Knisley, Henry A. Werchan","doi":"10.1109/TCC.1994.472086","DOIUrl":"https://doi.org/10.1109/TCC.1994.472086","url":null,"abstract":"A prototype was developed to process telemetry messages from tactical transmission assemblages in a digital group multiplexer (DGM) network and present status information to the nodal network manager. A data orderwire (DOW) system continuously forwards telemetry data from each DGM assemblage within the network. The DOW system is readily available for use, yet there is no capability at an Army tactical communications node to monitor the telemetry data within the DOW. Telemetry messages contain status information, including subcomponent alarms, for each DGM assemblage in the transmission network. This paper details the design approach for a telemetry processing prototype as well as background information on the DOW system. The telemetry processing prototype runs within a graphical user interface on a 486 personal computer (PC) that interfaces with the nodal communications system control element (CSCE) at each tactical communications node. The nodal CSCE contains the equipment which terminates the DOW. From a central location, the prototype can simultaneously monitor alarms from all DGM assemblages within a node's portion of the overall transmission network. Ongoing enhancements will extend the usefulness of telemetry data throughout the entire network, allowing the Army to project technical expertise in support of signal force projection.<<ETX>>","PeriodicalId":206310,"journal":{"name":"Proceedings of TCC'94 - Tactical Communications Conference","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124004480","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