Pub Date : 1994-05-23DOI: 10.1109/NAECON.1994.332942
T.K. Coburn
Along with enlightened communication and exchange, the digital revolution has produced mounds of information requiring classification, control, and management. As such, several organizations around the country have toyed with the idea of a totally paperless environment. To one degree or another, digitized information management has emerged among retail outlets, banks, insurers, and other companies. While electronic transactions involving uncomplicated information processing are common place today, still implementing the more complex data management techniques produces a number of difficulties. Not the least important is rise in the number of sophisticated design tools which allow system designers to pile layers of abstracted automation on top of the data structures responsible for performing the fundamental operations of search, insert, delete, change etc. While today's data structures are, for the most part, linear, the complexity of current systems demands a multidimensional approach capable of supporting layered data relationships. This paper explains a hash function called S SPIN capable of performing fundamental operations on multidimensional data spaces.<>
{"title":"An introduction to the S SPIN hash function: making more out of the multidimensional array","authors":"T.K. Coburn","doi":"10.1109/NAECON.1994.332942","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332942","url":null,"abstract":"Along with enlightened communication and exchange, the digital revolution has produced mounds of information requiring classification, control, and management. As such, several organizations around the country have toyed with the idea of a totally paperless environment. To one degree or another, digitized information management has emerged among retail outlets, banks, insurers, and other companies. While electronic transactions involving uncomplicated information processing are common place today, still implementing the more complex data management techniques produces a number of difficulties. Not the least important is rise in the number of sophisticated design tools which allow system designers to pile layers of abstracted automation on top of the data structures responsible for performing the fundamental operations of search, insert, delete, change etc. While today's data structures are, for the most part, linear, the complexity of current systems demands a multidimensional approach capable of supporting layered data relationships. This paper explains a hash function called S SPIN capable of performing fundamental operations on multidimensional data spaces.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115427025","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}
Pub Date : 1994-05-23DOI: 10.1109/NAECON.1994.332833
X. Lin, K. Naishadham
Microstrip and coplanar transmission line components have been analyzed by the finite-difference time-domain (FDTD) method. The FDTD computational mesh is truncated by imposing absorbing boundary conditions on the walls of the mesh, thus simulating outgoing waves appropriate to an open structure. The residual reflection from these boundaries introduces significant error in the frequency-domain parameters derived by Fourier transformation of the time-domain voltages and currents. In this paper, we have developed a new computationally-efficient method called the geometry rearrangement technique (GRT) to cancel the dominant contribution to such reflection. We have applied the GRT to compute the effective dielectric constant of planar transmission lines and the scattering parameters of MMIC components. The computed results have been found to be in good agreement with published data, thus indicating the effectiveness of the GRT in canceling boundary reflection. This research is applicable to efficient characterization of MMIC elements and high-density microwave and millimeter-wave packages, which are currently being investigated in aerospace research.<>
{"title":"A new computationally efficient method for the analysis of planar transmission lines and complex MMIC elements","authors":"X. Lin, K. Naishadham","doi":"10.1109/NAECON.1994.332833","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332833","url":null,"abstract":"Microstrip and coplanar transmission line components have been analyzed by the finite-difference time-domain (FDTD) method. The FDTD computational mesh is truncated by imposing absorbing boundary conditions on the walls of the mesh, thus simulating outgoing waves appropriate to an open structure. The residual reflection from these boundaries introduces significant error in the frequency-domain parameters derived by Fourier transformation of the time-domain voltages and currents. In this paper, we have developed a new computationally-efficient method called the geometry rearrangement technique (GRT) to cancel the dominant contribution to such reflection. We have applied the GRT to compute the effective dielectric constant of planar transmission lines and the scattering parameters of MMIC components. The computed results have been found to be in good agreement with published data, thus indicating the effectiveness of the GRT in canceling boundary reflection. This research is applicable to efficient characterization of MMIC elements and high-density microwave and millimeter-wave packages, which are currently being investigated in aerospace research.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"399 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116659961","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}
Pub Date : 1994-05-23DOI: 10.1109/NAECON.1994.332955
B. Givens
This paper describes a distributed, scalable hardware and software architecture that is being used to support a rapidly reconfigurable flight simulator (part-mission, part-task). The simulator is used by a cockpit design team to quickly evaluate competing design alternatives. It provides details of the software environment and the development of a cockpit display application is traced from design through integration. The architecture is composed of three software layers to provide the user/programmer with a simplified standard interface for integrating applications into a flight simulation. The first layer controls the overall operation of the simulation, provides control and object management functions, and provides messages through message queues to the applications. The second layer is made up of standard applications that are common to most cockpits. The majority of these applications are tailored through configuration files for the applicable cockpit. The third layer consists of applications that are aircraft/cockpit-specific components that define the functions for each unique configuration such as display formats. This architecture provides a data flow approach to modeling a simulation that treats groups of data as objects and routes these objects between machines as needed. This architecture lends itself to the development of object-oriented software applications (cockpit designs) which can be easily modified and maintained.<>
{"title":"Object-oriented applications in a rapid prototyping environment","authors":"B. Givens","doi":"10.1109/NAECON.1994.332955","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332955","url":null,"abstract":"This paper describes a distributed, scalable hardware and software architecture that is being used to support a rapidly reconfigurable flight simulator (part-mission, part-task). The simulator is used by a cockpit design team to quickly evaluate competing design alternatives. It provides details of the software environment and the development of a cockpit display application is traced from design through integration. The architecture is composed of three software layers to provide the user/programmer with a simplified standard interface for integrating applications into a flight simulation. The first layer controls the overall operation of the simulation, provides control and object management functions, and provides messages through message queues to the applications. The second layer is made up of standard applications that are common to most cockpits. The majority of these applications are tailored through configuration files for the applicable cockpit. The third layer consists of applications that are aircraft/cockpit-specific components that define the functions for each unique configuration such as display formats. This architecture provides a data flow approach to modeling a simulation that treats groups of data as objects and routes these objects between machines as needed. This architecture lends itself to the development of object-oriented software applications (cockpit designs) which can be easily modified and maintained.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"258 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121346675","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}
Pub Date : 1994-05-23DOI: 10.1109/NAECON.1994.332929
L. Picon, V. Bright, E. Kolesar
A magnetostrictive fiber optic Mach-Zehnder interferometric sensor that detects low-intensity magnetic fields was realized. The sensor utilizes 850 nm single-mode fiber optic cable and couplers. Four classes of sensing arms were fabricated by coupling the magnetostrictive materials to a length of fiber optic cable as: ribbons, cylinders, sandwiches, and sputter coated sheaths. The sensing arms were evaluated using Metglas, nickel, and a combination of Metglas and nickel. A Helmholtz coil was used to generate AC magnetic test and evaluation field. Optimization techniques were applied to the sensor to maximize its sensitivity, including: annealing the magnetostrictive material; enclosing the Helmholtz coil, sensing arm, and reference arm in a magnetic field shielded chamber; and applying a DC bias to the Helmholtz coil's AC current component. The measurements indicated that the lowest magnetic flux density that could be detected was 0.3 mG. This was achieved using a Metglas ribbon-fiber configuration where ribbon's magnetization direction was aligned perpendicularly with respect to the applied 52 kHz DC magnetic field and a 5 volt DC bias. When this configuration was correspondingly operated with a 10 Hz AC magnetic field and 5 volt DC bias, an 8.9 mG magnetic flux density was detected.<>
{"title":"Detecting low-intensity magnetic fields with a magnetostrictive fiber optic sensor","authors":"L. Picon, V. Bright, E. Kolesar","doi":"10.1109/NAECON.1994.332929","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332929","url":null,"abstract":"A magnetostrictive fiber optic Mach-Zehnder interferometric sensor that detects low-intensity magnetic fields was realized. The sensor utilizes 850 nm single-mode fiber optic cable and couplers. Four classes of sensing arms were fabricated by coupling the magnetostrictive materials to a length of fiber optic cable as: ribbons, cylinders, sandwiches, and sputter coated sheaths. The sensing arms were evaluated using Metglas, nickel, and a combination of Metglas and nickel. A Helmholtz coil was used to generate AC magnetic test and evaluation field. Optimization techniques were applied to the sensor to maximize its sensitivity, including: annealing the magnetostrictive material; enclosing the Helmholtz coil, sensing arm, and reference arm in a magnetic field shielded chamber; and applying a DC bias to the Helmholtz coil's AC current component. The measurements indicated that the lowest magnetic flux density that could be detected was 0.3 mG. This was achieved using a Metglas ribbon-fiber configuration where ribbon's magnetization direction was aligned perpendicularly with respect to the applied 52 kHz DC magnetic field and a 5 volt DC bias. When this configuration was correspondingly operated with a 10 Hz AC magnetic field and 5 volt DC bias, an 8.9 mG magnetic flux density was detected.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"139 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127332572","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}
Pub Date : 1994-05-23DOI: 10.1109/NAECON.1994.332963
D. Williams, J. Marthinuss, R. Bishop, D. Adams, M. Knoll, R. McClintock, J. Murray
A radiation hardened 64 K CMOS SONOS full featured EEPROM, W28C64, is described. A team comprised of Sandia National Laboratories and Westinghouse Advanced Technology Division has successfully developed a new design and fabrication process resulting in a production ready, radiation hardened product qualified for satellite, tactical weapons, and commercial systems. The part is software compatible with commercial 64 K EEPROMs and is presently being offered with Class B, Class S and commercial screening.<>
{"title":"A qualified radiation hardened EEPROM for space and tactical weapons applications","authors":"D. Williams, J. Marthinuss, R. Bishop, D. Adams, M. Knoll, R. McClintock, J. Murray","doi":"10.1109/NAECON.1994.332963","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332963","url":null,"abstract":"A radiation hardened 64 K CMOS SONOS full featured EEPROM, W28C64, is described. A team comprised of Sandia National Laboratories and Westinghouse Advanced Technology Division has successfully developed a new design and fabrication process resulting in a production ready, radiation hardened product qualified for satellite, tactical weapons, and commercial systems. The part is software compatible with commercial 64 K EEPROMs and is presently being offered with Class B, Class S and commercial screening.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125862363","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}
Pub Date : 1994-05-23DOI: 10.1109/NAECON.1994.332973
P. Zidek
This paper describes a proposed low risk, low cost, electro-optical lane tracking sensor for vehicle guidance and control. The S*R sensor is capable of measuring the lateral position of the vehicle with respect to highway lane markers with a high degree of accuracy. These sensor outputs can be used to automatically guide the vehicle along the interstate highway system in both the lateral direction as well as velocity.<>
{"title":"Lane position tracking","authors":"P. Zidek","doi":"10.1109/NAECON.1994.332973","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332973","url":null,"abstract":"This paper describes a proposed low risk, low cost, electro-optical lane tracking sensor for vehicle guidance and control. The S*R sensor is capable of measuring the lateral position of the vehicle with respect to highway lane markers with a high degree of accuracy. These sensor outputs can be used to automatically guide the vehicle along the interstate highway system in both the lateral direction as well as velocity.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125931902","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}
Pub Date : 1994-05-23DOI: 10.1109/NAECON.1994.332958
M. Liang, Qiu-Ming Ma, Dong-Guo Xu
In this paper, the problem of image segmentation using artificial neural network ( ANN) is discussed. A new ANN model for image segmentation is proposed which consists of two sub-networks in cascade, i.e. the master sub-network (MSN) and the auxiliary sub-network (ASN). The dynamics of this model is studied in details and the corresponding algorithm is described in the paper. Finally, the simulations are carried out for the medical image using the moment-preserving thresholding and the proposed ANN model, and the corresponding results indicate that the image segmented by the proposed ANN model is much better than that obtained by the moment-preserving thresholding.<>
{"title":"A new neural network model for image segmentation","authors":"M. Liang, Qiu-Ming Ma, Dong-Guo Xu","doi":"10.1109/NAECON.1994.332958","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332958","url":null,"abstract":"In this paper, the problem of image segmentation using artificial neural network ( ANN) is discussed. A new ANN model for image segmentation is proposed which consists of two sub-networks in cascade, i.e. the master sub-network (MSN) and the auxiliary sub-network (ASN). The dynamics of this model is studied in details and the corresponding algorithm is described in the paper. Finally, the simulations are carried out for the medical image using the moment-preserving thresholding and the proposed ANN model, and the corresponding results indicate that the image segmented by the proposed ANN model is much better than that obtained by the moment-preserving thresholding.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122416930","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}
Pub Date : 1994-05-23DOI: 10.1109/NAECON.1994.333010
M.B. Pellazar
A route planning approach based on a class of adaptive search techniques called genetic algorithms (GAs) is presented for planning 3D routes for multiple air-vehicles through a threat dense environment. This paper describes a GA-based route planner which generates effective vehicle routes and elegantly accommodates these mission constraints. Preliminary studies on GA-based air-vehicle route planners has shown this approach to be very promising. This paper extends previous research through integration with a complete hierarchy-based mission management system. The results of several experiments are illustrated and discussed. The main thrust of these experiments focus on: (1) investigating effective configuration of classes of GA operators; (2) determining GA operator parameter settings that will produce "near-optimal" routes; (3) exploring the use of a domain-specific mutation operator, called "target bias mutation", for expediting convergence; and (4) comparing results against the well-known dynamic programming algorithm.<>
{"title":"Vehicle route planning with constraints using genetic algorithms","authors":"M.B. Pellazar","doi":"10.1109/NAECON.1994.333010","DOIUrl":"https://doi.org/10.1109/NAECON.1994.333010","url":null,"abstract":"A route planning approach based on a class of adaptive search techniques called genetic algorithms (GAs) is presented for planning 3D routes for multiple air-vehicles through a threat dense environment. This paper describes a GA-based route planner which generates effective vehicle routes and elegantly accommodates these mission constraints. Preliminary studies on GA-based air-vehicle route planners has shown this approach to be very promising. This paper extends previous research through integration with a complete hierarchy-based mission management system. The results of several experiments are illustrated and discussed. The main thrust of these experiments focus on: (1) investigating effective configuration of classes of GA operators; (2) determining GA operator parameter settings that will produce \"near-optimal\" routes; (3) exploring the use of a domain-specific mutation operator, called \"target bias mutation\", for expediting convergence; and (4) comparing results against the well-known dynamic programming algorithm.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122214644","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}
Pub Date : 1994-05-23DOI: 10.1109/NAECON.1994.332885
D. Collier, L. Goldstone
Today's military aircraft must carry out various missions, some of them simultaneously. Consequently, antennas must be designed with the capability to function in a multiplicity of simultaneous as well as switchable modes. Slotted flat-plate arrays, with their unique ability to divide available aperture space among several antenna requirements, have become increasingly popular. Several recent design innovations have advanced the state of the art in attainable operational modes. Taking advantage of these approaches, one multimode antenna can now perform air-to-air pulse-Doppler monopulse, ground mapping, terrain following, and ground target tracking. Two multimode antennas are presented, one a simple and therefore less expensive design, the other a more complex configuration, a flat-plate array containing five separate apertures and eight RF outputs. Measured performance data, including far-field patterns when operating in the various modes, are shown.<>
{"title":"The multimode array-improved versatility through enhanced SAR","authors":"D. Collier, L. Goldstone","doi":"10.1109/NAECON.1994.332885","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332885","url":null,"abstract":"Today's military aircraft must carry out various missions, some of them simultaneously. Consequently, antennas must be designed with the capability to function in a multiplicity of simultaneous as well as switchable modes. Slotted flat-plate arrays, with their unique ability to divide available aperture space among several antenna requirements, have become increasingly popular. Several recent design innovations have advanced the state of the art in attainable operational modes. Taking advantage of these approaches, one multimode antenna can now perform air-to-air pulse-Doppler monopulse, ground mapping, terrain following, and ground target tracking. Two multimode antennas are presented, one a simple and therefore less expensive design, the other a more complex configuration, a flat-plate array containing five separate apertures and eight RF outputs. Measured performance data, including far-field patterns when operating in the various modes, are shown.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121382004","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}
Pub Date : 1994-05-23DOI: 10.1109/NAECON.1994.332943
J.H. Houchard
This paper describes the conceptual design of a suite of tools that will aid and/or automate various aspects of the control system verification and validation process. The suite provides for the definition of system data, generation of test procedures, and semi-automated test execution and evaluation. One element of this long-range vision, the Test Procedure Generator, is in the early stages of development under NASA's Small Business Innovative Research program. The TPG supports testing at the component, subsystem and complete system levels. It accepts system design data, including component and interface layout, as well as detailed component behavioral specifications defined using functional block diagrams. The TPG allows identification of the system elements to test and the specific interfaces to stimulate and/or monitor. The TPG aids the test engineer by suggesting tests to perform and generating detailed test procedures in a language suitable for automated test implementation.<>
{"title":"Conceptual design of test aides for flight critical control systems","authors":"J.H. Houchard","doi":"10.1109/NAECON.1994.332943","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332943","url":null,"abstract":"This paper describes the conceptual design of a suite of tools that will aid and/or automate various aspects of the control system verification and validation process. The suite provides for the definition of system data, generation of test procedures, and semi-automated test execution and evaluation. One element of this long-range vision, the Test Procedure Generator, is in the early stages of development under NASA's Small Business Innovative Research program. The TPG supports testing at the component, subsystem and complete system levels. It accepts system design data, including component and interface layout, as well as detailed component behavioral specifications defined using functional block diagrams. The TPG allows identification of the system elements to test and the specific interfaces to stimulate and/or monitor. The TPG aids the test engineer by suggesting tests to perform and generating detailed test procedures in a language suitable for automated test implementation.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"200 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121468639","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}
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