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Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993最新文献

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Advanced avionics architecture standardization issues 先进航空电子架构标准化问题
Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993 Pub Date : 1993-05-24 DOI: 10.1109/NAECON.1993.290915
W. Kiczuk
{"title":"Advanced avionics architecture standardization issues","authors":"W. Kiczuk","doi":"10.1109/NAECON.1993.290915","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290915","url":null,"abstract":"There is an ongoing dialogue within the DoD addressing the incorporation of commercial standards into tactical avionics computer systems. At on extreme are the proponents of \"open systems architectures\" who claim this is a proven approach to providing a cost-effective system. At the other extreme are the proponents of a \"requirements driven architectures\", such as the JIAWG approach, who claim this is the only approach to developing a tactical avionics computer system. Both groups have valid claims which need to be considered. This paper defines a framework to address these issues and then proposes an approach to defining a cost-effective tactical avionics computer system which is based upon preservation of the system engineering process and the role of standards in this process. The recommended responsibilities of the program and standardization agencies are detailed.<<ETX>>","PeriodicalId":183796,"journal":{"name":"Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127720469","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
CISTOMS-C for computerized ISD 海关- c计算机ISD
Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993 Pub Date : 1993-05-24 DOI: 10.1109/NAECON.1993.290854
M. E. Jones
{"title":"CISTOMS-C for computerized ISD","authors":"M. E. Jones","doi":"10.1109/NAECON.1993.290854","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290854","url":null,"abstract":"This paper covers the general layout, logic flow, and products generated by JWK International Corporation's (JWK) computerized instructional systems development (ISD) tool called CISTOMS-C (Computerized Instructional System for Tasks, Objectives, Media, and Syllabi-Clipperized). CISTOMS-C and its predecessors have been used successfully by the JWK analysts since 1990 to do media and training systems requirements analyses (TSRA) for the Air Force. In all of the past and current programs, CISTOMS-C has proven itself useful for both performance and academic objective analyses.<<ETX>>","PeriodicalId":183796,"journal":{"name":"Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121978551","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
High-capacity avionics optical fiber information exchange networks 大容量航空电子光纤信息交换网络
Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993 Pub Date : 1993-05-24 DOI: 10.1109/NAECON.1993.290916
Jianguo Zhang
{"title":"High-capacity avionics optical fiber information exchange networks","authors":"Jianguo Zhang","doi":"10.1109/NAECON.1993.290916","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290916","url":null,"abstract":"This paper presents the new design concepts to implement advanced high-capacity avionics optical fiber information exchange networks (AOFIE-networks). Very-high-speed medium access protocols are proposed to support multi-gigabit per second data communications, and the considerations on network design are described to match the requirements for aircraft applications. Optical time-division multiple access networks are shown to be very efficient for on-board TV and audio distribution services, while an optical code-division multiple access network is attractive to high-speed asynchronous packet data transfer. Since wavelength-division multiple access (WDMA) has advantages of channel independence and protocol transparence, it makes WDMA networks very suitable for real-time multiservice communications and on-board network interconnection. Furthermore, WDMA-based hybrid medium access protocols are very attractive to future AOFIE-networks, which can increase both network utilization and communication efficiency.<<ETX>>","PeriodicalId":183796,"journal":{"name":"Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129947441","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
Option 4 of MIL-H-38534: a quality management system for building compliant hybrid microcircuits for military use MIL-H-38534的选项4:用于构建军用混合微电路的质量管理体系
Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993 Pub Date : 1993-05-24 DOI: 10.1109/NAECON.1993.290801
M. Jones
{"title":"Option 4 of MIL-H-38534: a quality management system for building compliant hybrid microcircuits for military use","authors":"M. Jones","doi":"10.1109/NAECON.1993.290801","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290801","url":null,"abstract":"This paper describes the proposed Option 4 for the amendment of MIL-H-38534, General Specification for Hybrid Microcircuits. This paper explains the philosophy and the methods used by this option which includes the use of design analysis, design of experiments (DOE), and statistical process control (SPC). With this option, these methods may be used by the manufacturer's Technology Review Board (TRB), a group of representatives from each major function within the hybrid area to eliminate or modify inspections and tests within the manufacturer's Quality Conformance Inspection (QCI) and screening tests which are performed to a baselined Option 1, 2, or 3 flow. This paper explains why a manufacturer would want to implement this option and what benefits the customer will get. The manufacturer would want to get involved so that they can eliminate tests that, for their particular process and conditions, are not value-added processes. These eliminations and modifications should be seen by the customer as reduced prices for compliant hybrids, a quicker turn-around time for compliant new technology hybrids, and increased quality due to decreased handling.<<ETX>>","PeriodicalId":183796,"journal":{"name":"Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129955253","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
Efficiency of the transformer Cuk PWM converter 变压器Cuk PWM变换器的效率
Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993 Pub Date : 1993-05-24 DOI: 10.1109/NAECON.1993.290864
M. K. Jutty, M. Kazimierczuk
{"title":"Efficiency of the transformer Cuk PWM converter","authors":"M. K. Jutty, M. Kazimierczuk","doi":"10.1109/NAECON.1993.290864","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290864","url":null,"abstract":"A transformer Cuk PWM converter is analyzed for continuous conduction mode (CCM). For simplicity, an unidirectional single quadrant converter is considered. An equivalent circuit is developed for efficiency calculation. Expressions are derived for power losses in various components of the converter. Then, the efficiency is calculated theoretically for a 60 W converter.<<ETX>>","PeriodicalId":183796,"journal":{"name":"Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128228835","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
An efficient fiber optic data management system for air defence 一种用于防空的高效光纤数据管理系统
Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993 Pub Date : 1993-05-24 DOI: 10.1109/NAECON.1993.290792
M. Rao
{"title":"An efficient fiber optic data management system for air defence","authors":"M. Rao","doi":"10.1109/NAECON.1993.290792","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290792","url":null,"abstract":"The threat to air defence system is constantly changing because of the developments in aircraft, weapons and ECM technology. Paralleling the development of the threat there is a development of air defence systems. Advances in fibre optic data processing techniques have made possible to implement the technology in air defence. The purpose of this paper is to survey the signal processing techniques presently implemented in modern air defence and those which are likely to be applied in the future years.<<ETX>>","PeriodicalId":183796,"journal":{"name":"Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134383520","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
Simulation of a strapdown magnetic azimuth detector for wing tip mounted applications 用于翼尖安装的捷联磁方位探测器的仿真
Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993 Pub Date : 1993-05-24 DOI: 10.1109/NAECON.1993.290939
J. B. Archibald, R. Acharya
{"title":"Simulation of a strapdown magnetic azimuth detector for wing tip mounted applications","authors":"J. B. Archibald, R. Acharya","doi":"10.1109/NAECON.1993.290939","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290939","url":null,"abstract":"This paper addresses the instrument performance issues of a wing tip mounted solid state magnetic azimuth detector (MAD). The approach taken here dynamically tracks the wing tip deflections so that when used in conjunction with a fuselage mounted inertial reference unit (IRU), wing tip sensed magnetic measurements can be used to derive heading. Presented is a discussion of other strapdown approaches and their shortcomings with respect to wing mounted applications. This discussion is followed by a definition of the error sources associated with the new approach and a simulation illustrating the expected performance.<<ETX>>","PeriodicalId":183796,"journal":{"name":"Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993","volume":"174 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129461139","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
Layered irredundant covering 分层无冗余覆盖层
Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993 Pub Date : 1993-05-24 DOI: 10.1109/NAECON.1993.290821
V. Dasigi
{"title":"Layered irredundant covering","authors":"V. Dasigi","doi":"10.1109/NAECON.1993.290821","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290821","url":null,"abstract":"Abduction is generally defined as inference to the best explanation. Many approaches to abductive problem solving involve covering or accounting for what needs to be explained using a parsimonious set of explanation elements. Various criteria of parsimony, including irredundancy have been studied in diagnostic problem solving. We studied irredundancy further, in the context of other abductive problems such as natural language processing and Boolean function minimization, where the nature of the underlying knowledge is somewhat different. Despite differences, all the task domains involve layers of covering, e.g., to capture causal chaining in diagnosis, various subcubes in Boolean minimization, or to parse layer by layer in language processing. In all these three domains, irredundant covering has been noted to be transitive in a certain sense, making it possible to focus on a pair of consecutive layers at any time. These observations raise the question as to whether this kind of transitivity is inherent to irredundancy. We examine this question and some associated computational problems.<<ETX>>","PeriodicalId":183796,"journal":{"name":"Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130172712","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
Multi-resolution feature extraction from Gabor filtered images Gabor滤波图像的多分辨率特征提取
Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993 Pub Date : 1993-05-24 DOI: 10.1109/NAECON.1993.290837
M. Rizki, L. Tamburino, M. Zmuda
{"title":"Multi-resolution feature extraction from Gabor filtered images","authors":"M. Rizki, L. Tamburino, M. Zmuda","doi":"10.1109/NAECON.1993.290837","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290837","url":null,"abstract":"In this paper, we describe a hybrid learning system which combines a genetic algorithm with a neural network to classify grayscale images. The system operates on multi-resolution images which are formed by applying Gabor filters to a set of input images. The genetic algorithm evolves morphological probes that sample the multi-resolution images, and the perceptron algorithm then evaluates the extracted features. We demonstrate the use of this system by discriminating images of model tanks from other military vehicles. A multiplicity of accurate solutions, consisting of sparse morphological probes, are generated.<<ETX>>","PeriodicalId":183796,"journal":{"name":"Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130255089","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
Compensation for distorted LFM signal 失真LFM信号的补偿
Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993 Pub Date : 1993-05-24 DOI: 10.1109/NAECON.1993.290893
Rongqing Xu, Zhidao Cao, Xinggang Liu
{"title":"Compensation for distorted LFM signal","authors":"Rongqing Xu, Zhidao Cao, Xinggang Liu","doi":"10.1109/NAECON.1993.290893","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290893","url":null,"abstract":"A compensation method for non-ideal performance of the system using STRETCH processing (or full-deramp), and for modulation nonlinearity of LFM signal is presented. An analysis is developed to show that the effect caused by the non-ideal performance of the system on the signal output is time-invariant, and the effect caused by the nonlinearity of LFM signal on the output is time-variant. A series of simulation results demonstrate the efficiency of the method. Under some conditions, the sidelobe level as high as -5.76 dB may be reduced to -41 dB. If the tolerable sidelobe level is -30 dB, the target size may be extended to 120 m.<<ETX>>","PeriodicalId":183796,"journal":{"name":"Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114899170","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
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