{"title":"Enterprise modeling: user-driven requirements analysis","authors":"Robert L. Miller, J. Morley, Pamela J. Raikos","doi":"10.1109/NAECON.1993.290805","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290805","url":null,"abstract":"This paper examines the traditional requirements analysis determination model and discusses some of its shortcomings. General principles of systems analysis are discussed and an alternate method of identifying and describing functional user systems requirements is described. The alternate method requires extensive user participation with minimal input from data processing technicians in an approach that enhances effectiveness of the process by focusing on the user's view of his needs rather then the systems analyst interpretation of them.<<ETX>>","PeriodicalId":183796,"journal":{"name":"Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993","volume":"9 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":"116524719","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}
{"title":"An adaptable software architecture for integrated avionics","authors":"Will Tracz, L. Coglianese","doi":"10.1109/NAECON.1993.290779","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290779","url":null,"abstract":"This paper outlines the process, challenges, and preliminary results of developing a software architecture for navigation, guidance and flight director. These critical real-time functions were chosen because they represent the essential features of integrated avionics systems. The authors propose that adaptable software architectures coupled with parameterized components, tools, and processes can greatly improve the quality and maintainability of flight systems. The results discussed in this paper are based on the results of the first of four year's work performed at IBM's Federal System Company, Owego, NY as part of the Defense Advanced Projects Research Agency's (DARPA) Domain-Specific Software Architectures (DSSA) program. The goal of this research is to engineer an architecture and environment that enables the rapid development of avionics requirements and software. In addition, this research focuses on making architectures extendible to permit the addition of evolutionary hardware and software technologies.<<ETX>>","PeriodicalId":183796,"journal":{"name":"Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993","volume":"7 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":"131978663","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}
{"title":"Avionics wind tunnel laboratory interface development","authors":"D. Howell, J. Woodyard, J. Wiseman, R. Clericus","doi":"10.1109/NAECON.1993.290914","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290914","url":null,"abstract":"An innovative concept for in-house laboratory research, test and evaluation is being developed within the Avionics Directorate of Wright Laboratory. This concept involves placing advanced avionics hardware and software technologies into realistic testing environments analogous to placing test structures in a wind tunnel environment; hence, the title Avionics Wind Tunnel. These environments are generated, controlled and coordinated through pilot-in-the-loop interactions with a high level engagement model called SUPPRESSOR. SUPPRESSOR simulates a combat environment complete with reactive threats and friendly forces providing communications, jamming, radar, and counter-measures events. The event data and platform movements are used by distributed simulators placed around a real-time simulation network which produces a realistic environment to evaluate avionics technologies. The goal of this concept is to provide an inter-lab capability to perform research, test and evaluation on advanced integrated avionics technologies related to data fusion, integrated communication, navigation, identification (CNI), integrated electronic combat (EC), secure communications, and integrated avionics architectures. Engineers in the Avionics Directorate have been developing real-time interfaces to support joint CNI/EC demonstrations and experiments using the Integrated Test Bed (ITB), Integrated Electromagnetic System Simulator (IESS), Communications System Evaluation Laboratory (CSEL) and Integrated Defensive Avionics Laboratory (IDAL). This paper defines the Avionics Wind Tunnel concept, examines its benefits, and describes the current capabilities and future potential of this development.<<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":"128539143","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}
{"title":"A human factors evaluation using tools for automated knowledge engineering","authors":"M. Gomes, S. Lind, D. E. Snyder","doi":"10.1109/NAECON.1993.290861","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290861","url":null,"abstract":"The purpose of this paper is to describe a human factors evaluation of the MH-53J helicopter cockpit. This evaluation was an application and further development of the Tools for Automated Knowledge Engineering (TAKE) process. The process is used to acquire and analyze knowledge from subject matter experts (aircrew members, system designers, maintenance personnel, human factors engineers, or others). TAKE was successfully utilized for the purpose of recommending improvements for the man-machine interfaces (MMI) in the MH-53J cockpit.<<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":"134359594","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}
{"title":"Compatibility of multiplexed optical fiber sensors with optical communications systems onboard military and commercial aircraft","authors":"B. Zimmermann","doi":"10.1109/NAECON.1993.290785","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290785","url":null,"abstract":"The compatibility of optical fiber time domain (OFTD) sensors with aircraft optical communications systems is discussed. The OFTD sensors are multiplexed using serial and parallel formats that allow three dimensional strain and temperature mapping. The optical fibers used in these sensor arrays are similar, if not identical, to those used in aircraft optical communication data buses. A 100/140 mu m core/cladding diameter silica (glass) fiber using a high temperature resistant polyimide protective coating is employed. This multi-mode (MM) fiber format is typical for short-haul local area networks (LANs) used in aircraft. Furthermore, the 100/140 mu m optical fiber is compatible with commercially available fiber optic connectors, splices, splitters, and other peripheral hardware. This opens up the possibility for hybrid fiber optic communication/sensor networks either embedded in or attached to aircraft structures. Results are presented on tests performed with prototype sensors using the 100/140 mu m MM fiber type. These sensors were embedded in composite laminates that are representative of materials used in advanced technology aircraft. Structural strain was monitored and compared with data gathered through conventional means (strain gages and extensometers). Future applications and possibilities for advanced field trials which combine the OFTD sensor concept with existing fiber optic data buses on aircraft are also proposed.<<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":"129313533","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}
{"title":"Efficient electronic implementation of modified signed-digit trinary carry free adder","authors":"M. M. Hossain, J. U. Ahmed, A. Awwal","doi":"10.1109/NAECON.1993.290913","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290913","url":null,"abstract":"An efficient carry-free addition and borrow-free subtraction of modified signed-digit trinary number scheme is presented which may be used for parallel computing application. A digital 2 bit prototype adder was designed and implemented using electrically programmable logic device (EPLD).<<ETX>>","PeriodicalId":183796,"journal":{"name":"Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993","volume":"54 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":"116811499","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}
{"title":"Comparative anatomy of maintenance tasks (CAMT): demonstration of field administration technique","authors":"D. R. Loose, F.C. Gentner, C.M. Dascalos","doi":"10.1109/NAECON.1993.290863","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290863","url":null,"abstract":"To be a \"player\" in today's concurrent engineering design environment, each engineer must provide reasonable estimates of system-level effects of his/her recommendations. Human factors engineers, who formerly relied on quoting military standards (MIL-STDs) or design guides, now must support their recommendations with consequences. Although human factors maintainability estimate methods have been employed, most are considered cumbersome, labor intensive, and not responsive to the quick-paced program or design office decisions required. The CAMT research program proposes a new way to estimate human consequences of design alternatives, a method that could be more responsive, efficient, and effective. This new approach is demonstrated in a series of CAMT feasibility studies conducted by the Armstrong Lab's Logistics Research Division.<<ETX>>","PeriodicalId":183796,"journal":{"name":"Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993","volume":"25 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":"123888230","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}
{"title":"Fast carry free adder design using QSD number system","authors":"A. Awwal, J. U. Ahmed","doi":"10.1109/NAECON.1993.290791","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290791","url":null,"abstract":"A high speed parallel full adder is designed which can perform carry-free addition of two modified signed digit quaternary numbers. For digital implementation, the sign digit quaternary numbers are represented using 3-bit 2's complement notation. The adder truth table with possible schemes of the electronic and optical implementation are provided.<<ETX>>","PeriodicalId":183796,"journal":{"name":"Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993","volume":"10 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":"125522584","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}
{"title":"Parallel system design assistant","authors":"P. Chawla, H. Hirsch, D.P. Geis","doi":"10.1109/NAECON.1993.290963","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290963","url":null,"abstract":"As a consequence of continuing growth in the complexity of computing applications, the conventional uniprocessor computers do not provide adequate processing power to obtain a desired system response in an acceptable elapsed time. Parallel processing techniques offer a potential solution to this problem. However, in order to exploit parallel processing techniques for an application of computing system to correctly make several important decisions such as selection of an appropriate parallel computing platform, configuration of the chosen platform assignment of application software processors of the platform. This paper describes a CAD tool called Parallel System Design Assistant which assists a parallel computing system designer in making such decisions.<<ETX>>","PeriodicalId":183796,"journal":{"name":"Proceedings of the IEEE 1993 National Aerospace and Electronics Conference-NAECON 1993","volume":"22 2 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":"124086388","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}
{"title":"Distance simulation in virtual audio displays","authors":"D. Brungart","doi":"10.1109/NAECON.1993.290868","DOIUrl":"https://doi.org/10.1109/NAECON.1993.290868","url":null,"abstract":"Advances in the field of audio virtual reality have focused on the simulation of direction in virtual audio displays. The potential to add elementary distance cues to these displays remains largely unexploited. A number of audio cues have been identified that provide exocentric, or relative, and egocentric, or absolute, distance information. Two of these cues, intensity and first-order reflections, are examined closely in this paper. These cues can be simulated in a virtual audio display using simple geometric calculations and digital signal processing techniques. A short experiment examining the effectiveness of these cues was performed. Subjects were asked to make absolute distance judgements based on simulated sound sources while listening to loudspeakers directly or binaural recordings. Half of the trials contained intensity cues only and half contained intensity and reflection cues. The results show that the subjects were able to rank the distances correctly in each condition, but the data fail to verify the effectiveness of the reflection cue when presented over headphones.<<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":"129208235","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}