Proceedings of the IEEE 1991 National Aerospace and Electronics Conference NAECON 1991最新文献

筛选
英文 中文
AF EC test process for RF receivers 射频接收机的AF - EC测试过程
G.F. McDougal, M. Cooper, D. Folds
{"title":"AF EC test process for RF receivers","authors":"G.F. McDougal, M. Cooper, D. Folds","doi":"10.1109/NAECON.1991.165937","DOIUrl":"https://doi.org/10.1109/NAECON.1991.165937","url":null,"abstract":"It is suggested that the Air Force (AF) Electronic Combat (EC) Test Process for RF receiver systems can be realized via application of the scientific method employed by experimental scientists for centuries. The authors delineate the direct correspondence of the scientific method to the disciplined AF EC Test Process for RF receiver systems. A by-product of this examination is the identification of the pitfalls which have historically plagued EC system test and evaluation. Particular emphasis is placed on the roles of computer modeling and simulation to implement key steps in the scientific method relative to hypothesis formulation, prediction validation, experiment correlation, and the generalization of these results to operational performance estimates. Mathematical formulations are presented to accomplish the mapping of RF receiver test objective specific performance characteristics to operationally relevant performance measures.<<ETX>>","PeriodicalId":247766,"journal":{"name":"Proceedings of the IEEE 1991 National Aerospace and Electronics Conference NAECON 1991","volume":"46 46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122951893","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
Product methodology for industrial enterprise competitiveness (avionics) 工业企业竞争力产品方法论(航空电子)
J. G. Nell
{"title":"Product methodology for industrial enterprise competitiveness (avionics)","authors":"J. G. Nell","doi":"10.1109/NAECON.1991.165721","DOIUrl":"https://doi.org/10.1109/NAECON.1991.165721","url":null,"abstract":"The author cites similarities between devising an integrated approach to designing, manufacturing, using, and supporting aircraft avionics systems and the approach to analyzing enterprise-integration architectures. It is suggested that the most effective approach will be the framework that is created by a consensus of the users of such systems. This cooperation will provide a known environment into which systems can be connected and operated, provide lower development costs, and provide a more competitive environment for avionics system component suppliers.<<ETX>>","PeriodicalId":247766,"journal":{"name":"Proceedings of the IEEE 1991 National Aerospace and Electronics Conference NAECON 1991","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121688176","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
Classification of correlation signatures of spread spectrum signals using neural networks 基于神经网络的扩频信号相关特征分类
R. A. Chapman, D. Norman, D. Zahirniak, S. Rogers, M. Oxley
{"title":"Classification of correlation signatures of spread spectrum signals using neural networks","authors":"R. A. Chapman, D. Norman, D. Zahirniak, S. Rogers, M. Oxley","doi":"10.1109/NAECON.1991.165794","DOIUrl":"https://doi.org/10.1109/NAECON.1991.165794","url":null,"abstract":"The authors discuss the application of artificial neural networks (ANNs) to the classification of spread spectrum signals based on signal type or spreading technique. Radial basis function networks (RBFNs) and back-propagation networks (BPNs) were used to classify the correlation signatures of the signals. Correlation signatures of four types or classes were obtained from United States Army Harry Diamond Laboratories: direct sequence (DS), linearly stepped frequency hopped (LSFH), randomly driven frequency hopped (RDFH), and a hybrid of direct sequence and randomly driven frequency hopped (HYB). RBFNs and BPNs trained directly on two classes (DS and LSFH) and four classes (DS, LSFH, RDFH, and HYB) of correlation signatures. Classification accuracies ranged from 79% to 92% for the two-class problem and from 70% to 76% for the four-class problem. The RBFNs consistently produced classification accuracies from 5% to 10% higher than accuracies produced by the BPNs. The RBFNs produced this classification advantage in significantly less training for all cases.<<ETX>>","PeriodicalId":247766,"journal":{"name":"Proceedings of the IEEE 1991 National Aerospace and Electronics Conference NAECON 1991","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121886425","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
Life cycle cost (LCC) milestones 生命周期成本(LCC)里程碑
L.E. Greene
{"title":"Life cycle cost (LCC) milestones","authors":"L.E. Greene","doi":"10.1109/NAECON.1991.165912","DOIUrl":"https://doi.org/10.1109/NAECON.1991.165912","url":null,"abstract":"The author discusses specific LCC (life cycle cost) milestones and activities which program managers should address to effectively apply LCC management techniques to their programs. The focus is more on the timing side of LCC management rather than on the how to do it side of the problem. The LCC milestones discussed are necessarily generic ones since it is not possible to discuss them in terms of just one specific program. However, with the help of a statement of program objectives and a master program schedule which shows the program phases, these generic LCC milestones can be easily tailored and adapted to a specific program.<<ETX>>","PeriodicalId":247766,"journal":{"name":"Proceedings of the IEEE 1991 National Aerospace and Electronics Conference NAECON 1991","volume":"11 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125942037","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
Radar-optronic tracking experiment for short and medium range aerial combat 近中程空战雷达光电跟踪试验
C. Ravat, J.P. Mestre, C. Rose, M. Schorter
{"title":"Radar-optronic tracking experiment for short and medium range aerial combat","authors":"C. Ravat, J.P. Mestre, C. Rose, M. Schorter","doi":"10.1109/NAECON.1991.165774","DOIUrl":"https://doi.org/10.1109/NAECON.1991.165774","url":null,"abstract":"The combination of optronic and radar sensors significantly improves combat aircraft potential. After having studied the fusion and estimation algorithms required by this combination, Thomson-CSF has set up a ground experiment in order to evaluate the performance of a combined radar-optronic system in short and medium range aerial combat. A system of this type can be used in combination with fire-control systems (gun or missile). The experiment combines an RDM radar and an ATLIS TV tracking pod, and will be completed later with an ASPIC IRST (infrared search and track) sensor. The potential interest of the combined use of radar and optronics is presented with the experimental conditions and the main results obtained.<<ETX>>","PeriodicalId":247766,"journal":{"name":"Proceedings of the IEEE 1991 National Aerospace and Electronics Conference NAECON 1991","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129953811","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 importance of implicit and explicit knowledge in a pilot's associate system 显性知识和隐性知识在飞行员同伴系统中的重要性
D. Perschbacher, K. Levi, M. Hoffman
{"title":"The importance of implicit and explicit knowledge in a pilot's associate system","authors":"D. Perschbacher, K. Levi, M. Hoffman","doi":"10.1109/NAECON.1991.165905","DOIUrl":"https://doi.org/10.1109/NAECON.1991.165905","url":null,"abstract":"It is pointed out that fielding an operational pilot's associate (PA) will require both implicit and explicit representations of knowledge. Speed and memory performance requirements for PA will be aided by the use of implicit representations of knowledge. Acquiring and maintaining the large knowledge bases for PA will, by contrast, be aided by having explicit knowledge representations. Such explicit representations are being investigated in a 10 person-year research project sponsored by the Wright Research and Development Center. A critical contribution of this research has been to develop concepts that make machine learning applicable to real-time control and execution systems such as pilot's associate. The authors describe how machine learning techniques can automatically transform explicit representations into the implicit representations required by PA.<<ETX>>","PeriodicalId":247766,"journal":{"name":"Proceedings of the IEEE 1991 National Aerospace and Electronics Conference NAECON 1991","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129507650","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
An integrated navigation system manager using federated Kalman filtering 基于联合卡尔曼滤波的组合导航系统管理器
S.A. Broatch, A. Henley
{"title":"An integrated navigation system manager using federated Kalman filtering","authors":"S.A. Broatch, A. Henley","doi":"10.1109/NAECON.1991.165783","DOIUrl":"https://doi.org/10.1109/NAECON.1991.165783","url":null,"abstract":"A federated Kalman filter architecture has been developed in which the Kalman filter processing is distributed among the navigation sensors to be integrated. Each navigation sensor with its Kalman filter can, in conjunction with the reference INS (Inertial Navigation System), be considered as a subsystem which functions as an independent manager. A central data fusion function is used to integrate the information from these navigators. Such a federated architecture can offer a number of advantages over one with a single central Kalman filter. These advantages include improved failure detection and correction, improved redundancy management, and lower costs for system integration. GEC Avionics has developed a system for the integration of INS with GPS (Global Positioning System) and TRN (Terrain Referenced Navigation), together with other navigation aids. Results are presented to demonstrate the performance and the benefits of using a federated approach.<<ETX>>","PeriodicalId":247766,"journal":{"name":"Proceedings of the IEEE 1991 National Aerospace and Electronics Conference NAECON 1991","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131480033","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: 19
Robust discrete controller design for an unmanned research vehicle (URV) using discrete quantitative feedback theory 基于离散定量反馈理论的无人研究车鲁棒离散控制器设计
D. Wheaton, I. Horowitz, C. Houpis
{"title":"Robust discrete controller design for an unmanned research vehicle (URV) using discrete quantitative feedback theory","authors":"D. Wheaton, I. Horowitz, C. Houpis","doi":"10.1109/NAECON.1991.165804","DOIUrl":"https://doi.org/10.1109/NAECON.1991.165804","url":null,"abstract":"The application of non-minimum phase omega '-plane discrete MIMO (multiple-input-multiple-output) quantitative feedback theory (QFT) to the design of a three-axis rate-commanded automatic flight control system for a URV is presented. The URV model used is a seven-input three-output state-space system derived from the small-angle perturbation equations of motion. The controllers and prefilters designed provide a three-axis noninteracting rate-commanded automatic flight control law implementation on the Lambda URV. Hybrid nonlinear simulations verify the successful application of discrete QFT. The yaw-rate channel meets all specifications.<<ETX>>","PeriodicalId":247766,"journal":{"name":"Proceedings of the IEEE 1991 National Aerospace and Electronics Conference NAECON 1991","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130068404","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
High speed data bus design validation 高速数据总线设计验证
R. Stevens
{"title":"High speed data bus design validation","authors":"R. Stevens","doi":"10.1109/NAECON.1991.165746","DOIUrl":"https://doi.org/10.1109/NAECON.1991.165746","url":null,"abstract":"The SAE Linear Implementation Task Group has developed the SAE Linear Token Passing Multiplex Data Bus Standard (AS4074.1). A validation plan which will define the test requirements for determining that an implementation of the standard meets the requirements of SAE AS4074.1 is discussed. Once completed, the test requirements contained in this plan will be executed on bus interface units (BIUs) for validation purposes. The author describes the use of a validation model that incorporates many of the capabilities of the validation test plan. This model can also be thought of as a VHDL (VHSIC Hardware Description Language) behavioral representation of the SAE Linear Token Passing Multiplex Data Bus Standard. It is tightly coupled to the standard and provides a model that can be used during the BIU development to validate the design.<<ETX>>","PeriodicalId":247766,"journal":{"name":"Proceedings of the IEEE 1991 National Aerospace and Electronics Conference NAECON 1991","volume":"39 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125742467","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
Design enhancements for the Air Force Institute of Technology's Winograd Fourier transform processor 空军理工学院Winograd傅立叶变换处理器的设计增强
R.E. Sommer, M. A. Mehalic
{"title":"Design enhancements for the Air Force Institute of Technology's Winograd Fourier transform processor","authors":"R.E. Sommer, M. A. Mehalic","doi":"10.1109/NAECON.1991.165728","DOIUrl":"https://doi.org/10.1109/NAECON.1991.165728","url":null,"abstract":"The authors deal with the development of a Winograd Fourier transform processor at the Air Force Institute of Technology (AFIT). The processor can be hardware-configured to perform a 15-, 16-, 17-, 240-, 255-, 272-, or 4,080-point transform. The authors present three methods that can be used to improve the utility of the AFIT WFTA processor. Dynamic reconfiguration, a two-dimensional transform system, and an alternate architecture for the AFIT WFTA are presented. Results of these improvements are given, including a four-dimensional FFT (fast Fourier transform) configuration that can perform a single 77520-point complex FFT in 8.87 milliseconds, and once the processor's pipeline is full, a 77520-point complex transform can be completed every 2.22 milliseconds.<<ETX>>","PeriodicalId":247766,"journal":{"name":"Proceedings of the IEEE 1991 National Aerospace and Electronics Conference NAECON 1991","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125775604","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
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
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:604180095
Book学术官方微信