Pub Date : 1994-05-23DOI: 10.1109/NAECON.1994.332900
K. Rathburn
Managing automatic test systems in the 1990s is more than writing BASIC test programs to control IEEE 488 instruments. Managing your automatic test system involves test program set (TPS) development, management of re-usable test objects, data management, tester resource management and user interface management. In addition the automatic test system must provide test executive that controls the overall test development and execution environments. The benefits of this type of system are, lower TPS development cost, a common user interface and lower operator training cost. This paper focuses on these aspects of automatic test system management.<>
{"title":"Managing automatic test systems in the 1990s","authors":"K. Rathburn","doi":"10.1109/NAECON.1994.332900","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332900","url":null,"abstract":"Managing automatic test systems in the 1990s is more than writing BASIC test programs to control IEEE 488 instruments. Managing your automatic test system involves test program set (TPS) development, management of re-usable test objects, data management, tester resource management and user interface management. In addition the automatic test system must provide test executive that controls the overall test development and execution environments. The benefits of this type of system are, lower TPS development cost, a common user interface and lower operator training cost. This paper focuses on these aspects of automatic test system management.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"31 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":"130933541","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.1994.332915
E. Ancman, C. Poprik
The upgrade and improvement of life support systems has always been a priority for the United States Air Force. A study is currently underway to determine the feasibility of replacing the emergency passenger protective breathing device used on USAF transport aircraft. The present system, the "yellow dixie cup", provides supplemental oxygen in the event of a rapid decompression. The system is not designed to provide protection in the event of a fire or toxic fumes resulting from a cargo spill. The proposed replacement, utilizing either a positive pressure closed loop or filter based open loop system, will provide protection during any of these circumstances. In addition to personnel safety considerations, the Air Force continually strives to improve product reliability and maintainability. Approximately one third of the yellow dixie cups must be replaced annually, whether used or not. Specifications for the new mask include a requirement for an active five year shelf life. The effort, known as the Passenger Smoke and Fume Protective Device (PSFPD) study, is presently in the market survey phase, where the potential for buying an off-the-shelf item is under evaluation. This type of procurement, a Nondevelopmental Item (NDI) acquisition, is a highly cost effective method of meeting DoD needs. The market survey includes conducting evaluations to develop a performance-based specification to be used for the the procurement if a suitable replacement is found. The projected acquisition is planned for FY1995. The commercial aviation industry, which also uses the yellow dixie cup, has taken a great interest in the results of the study.<>
{"title":"Replacement of the yellow dixie cup","authors":"E. Ancman, C. Poprik","doi":"10.1109/NAECON.1994.332915","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332915","url":null,"abstract":"The upgrade and improvement of life support systems has always been a priority for the United States Air Force. A study is currently underway to determine the feasibility of replacing the emergency passenger protective breathing device used on USAF transport aircraft. The present system, the \"yellow dixie cup\", provides supplemental oxygen in the event of a rapid decompression. The system is not designed to provide protection in the event of a fire or toxic fumes resulting from a cargo spill. The proposed replacement, utilizing either a positive pressure closed loop or filter based open loop system, will provide protection during any of these circumstances. In addition to personnel safety considerations, the Air Force continually strives to improve product reliability and maintainability. Approximately one third of the yellow dixie cups must be replaced annually, whether used or not. Specifications for the new mask include a requirement for an active five year shelf life. The effort, known as the Passenger Smoke and Fume Protective Device (PSFPD) study, is presently in the market survey phase, where the potential for buying an off-the-shelf item is under evaluation. This type of procurement, a Nondevelopmental Item (NDI) acquisition, is a highly cost effective method of meeting DoD needs. The market survey includes conducting evaluations to develop a performance-based specification to be used for the the procurement if a suitable replacement is found. The projected acquisition is planned for FY1995. The commercial aviation industry, which also uses the yellow dixie cup, has taken a great interest in the results of the study.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"10 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":"115578724","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.1994.332851
M. Logan, M. Pachter
This paper addresses the development of a full-envelope controller for nonlinear systems based on the fusion of ideas from linear control theory and fuzzy logic. The term model-based fuzzy Logic control has been coined to describe this dynamic compensation approach. The model-based fuzzy logic controller is essentially a bank of fuzzy logic controllers with the composite control input smoothed by a linear compensator. The proper fuzzy controller in the bank is chosen by a measurement of the magnitude of the reference input, and the linear compensator is determined based on a linearized model of the nonlinear plant. It is shown that the resulting controller provides full-envelope control of the highly nonlinear benchmark plant.<>
{"title":"Full-envelope fuzzy logic control","authors":"M. Logan, M. Pachter","doi":"10.1109/NAECON.1994.332851","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332851","url":null,"abstract":"This paper addresses the development of a full-envelope controller for nonlinear systems based on the fusion of ideas from linear control theory and fuzzy logic. The term model-based fuzzy Logic control has been coined to describe this dynamic compensation approach. The model-based fuzzy logic controller is essentially a bank of fuzzy logic controllers with the composite control input smoothed by a linear compensator. The proper fuzzy controller in the bank is chosen by a measurement of the magnitude of the reference input, and the linear compensator is determined based on a linearized model of the nonlinear plant. It is shown that the resulting controller provides full-envelope control of the highly nonlinear benchmark plant.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"35 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":"124145608","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.1994.332852
A.D. Churchman, W. Havens, C. Pell, S.C. Pilet
The Flight Dynamics Directorate at Wright Laboratory awarded Boeing Defense and Space Group a Research and Development contract in September 1993 to develop an advanced flight management design to assist piloted and unmanned lethal aircraft in cooperative operational air-to-air and air-to-surface strike missions. Boeing has awarded a subcontract to GDE systems of San Diego to support this program. The objective of the Controls Automation and Task Allocation (CATA) program described is to develop an integrated, automated multi-ship flight management system. CATA will control flight paths and the allocation of assets (weapons and sensors, while maximizing survivability against threats, limiting fratricide (deconfliction), optimizing fuel reserves, and providing finite time control among a package of potentially dissimilar aircraft. The CATA design will accomplish these objectives through sharing of package resources, dispersed task allocation, and advanced flight management algorithms while limiting the impact on pilot workload.<>
{"title":"Controls Automation and Task Allocation program","authors":"A.D. Churchman, W. Havens, C. Pell, S.C. Pilet","doi":"10.1109/NAECON.1994.332852","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332852","url":null,"abstract":"The Flight Dynamics Directorate at Wright Laboratory awarded Boeing Defense and Space Group a Research and Development contract in September 1993 to develop an advanced flight management design to assist piloted and unmanned lethal aircraft in cooperative operational air-to-air and air-to-surface strike missions. Boeing has awarded a subcontract to GDE systems of San Diego to support this program. The objective of the Controls Automation and Task Allocation (CATA) program described is to develop an integrated, automated multi-ship flight management system. CATA will control flight paths and the allocation of assets (weapons and sensors, while maximizing survivability against threats, limiting fratricide (deconfliction), optimizing fuel reserves, and providing finite time control among a package of potentially dissimilar aircraft. The CATA design will accomplish these objectives through sharing of package resources, dispersed task allocation, and advanced flight management algorithms while limiting the impact on pilot workload.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"2 5 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":"124296744","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.1994.332916
E. Franks, R. Thornton
Ultra high frequency (UHF) channels provide a reliable medium for conveying voice and data information between users within a communications network. UHF communication channels may be categorized as either Line-of-Sight (LOS) or Satellite Communication (SATCOM) channels. UHF LOS and SATCOM systems are typically composed of voice/data sources, cryptographic devices (for secure channels), data terminal sets (modulator/demodulator/satellite link controller), UHF radios, and antennas. In designing a UHF communications system, the systems engineer must characterize the equipment, the physical channel, and the satellite transponder to determine if the information can be successfully transferred between users. Published text describing the techniques for characterizing and analyzing UHF communication systems and channels in single-channel applications exists and will not be covered in this paper. However, setting up successful links in an environment where several users are operating over multiple UHF channels simultaneously utilizing several UHF antennas, referred to as Simultaneous Operation (SIMOP), presents a more challenging problem, even for the experienced systems engineer. This paper describes problems and proposed solutions for UHF SIMOP in an airborne platform. Since baseband equipment for individual communication networks have minimal adverse effect on SIMOP performance, this paper focuses on the radio and antenna equipment. The airborne platform is unique in that it uses low-drag, few-gain, closely-spaced antennas which lead to low isolation. Concepts such as adjacent-channel interference, intermodulation distortion, broadband transmitter noise, harmonic and spurious emissions, receiver desensitization and cross modulation are described as they apply to SIMOP applications. Budget analysis using typical radio specifications shows that the predominant adverse effects are driven by transmitter broadband noise and intermodulation. Solutions to SIMOP problems, including antenna isolation, filtering, frequency management, and signal cancellation are addressed, with the goal that the techniques discussed may be applied successfully to existing or future UHF communications systems with SIMOP requirements.<>
{"title":"Simultaneous operation of UHF communication channels on an airborne platform","authors":"E. Franks, R. Thornton","doi":"10.1109/NAECON.1994.332916","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332916","url":null,"abstract":"Ultra high frequency (UHF) channels provide a reliable medium for conveying voice and data information between users within a communications network. UHF communication channels may be categorized as either Line-of-Sight (LOS) or Satellite Communication (SATCOM) channels. UHF LOS and SATCOM systems are typically composed of voice/data sources, cryptographic devices (for secure channels), data terminal sets (modulator/demodulator/satellite link controller), UHF radios, and antennas. In designing a UHF communications system, the systems engineer must characterize the equipment, the physical channel, and the satellite transponder to determine if the information can be successfully transferred between users. Published text describing the techniques for characterizing and analyzing UHF communication systems and channels in single-channel applications exists and will not be covered in this paper. However, setting up successful links in an environment where several users are operating over multiple UHF channels simultaneously utilizing several UHF antennas, referred to as Simultaneous Operation (SIMOP), presents a more challenging problem, even for the experienced systems engineer. This paper describes problems and proposed solutions for UHF SIMOP in an airborne platform. Since baseband equipment for individual communication networks have minimal adverse effect on SIMOP performance, this paper focuses on the radio and antenna equipment. The airborne platform is unique in that it uses low-drag, few-gain, closely-spaced antennas which lead to low isolation. Concepts such as adjacent-channel interference, intermodulation distortion, broadband transmitter noise, harmonic and spurious emissions, receiver desensitization and cross modulation are described as they apply to SIMOP applications. Budget analysis using typical radio specifications shows that the predominant adverse effects are driven by transmitter broadband noise and intermodulation. Solutions to SIMOP problems, including antenna isolation, filtering, frequency management, and signal cancellation are addressed, with the goal that the techniques discussed may be applied successfully to existing or future UHF communications systems with SIMOP requirements.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"156 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":"114733850","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.1994.332997
J. Lang, J. Means
With respect to avionics systems, traditional design and manufacturing processes have proven themselves to be inadequate when it comes to meeting the new realities of the defense market place. Maintaining performance superiority in the face of today's reduced budgets and manpower requires new and disciplined processes, lower costs, shorter development cycles, and products that successfully balance performance, supportability, and cost. A team of Air Force, McDonnell Douglas Aerospace, and Hughes Aircraft Company personnel have developed and are implementing a new avionics design and development process that satisfies these demands. The process is called Advanced Design for Quality Avionic Systems (ADQAS). It includes well defined steps and a guide or roadmap to direct the efforts of integrated Product Development (IPD) teams in designing and manufacturing avionics products. The reams tailor their processes to the product and measure progress against predetermined exit criteria for each phase. Equipment design simultaneously stresses the capability for long term operation in the user's environment, and the minimization of variability through the control of manufacturing processes. The product development, verification, and production phases continue the focus on careful verification of product and process attributes and on variability reduction. Implementation of the ADQAS process has already begun on several F-15 development programs, which are referenced in this paper.<>
{"title":"Advanced design for quality avionic systems: a new roadmap for systems development","authors":"J. Lang, J. Means","doi":"10.1109/NAECON.1994.332997","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332997","url":null,"abstract":"With respect to avionics systems, traditional design and manufacturing processes have proven themselves to be inadequate when it comes to meeting the new realities of the defense market place. Maintaining performance superiority in the face of today's reduced budgets and manpower requires new and disciplined processes, lower costs, shorter development cycles, and products that successfully balance performance, supportability, and cost. A team of Air Force, McDonnell Douglas Aerospace, and Hughes Aircraft Company personnel have developed and are implementing a new avionics design and development process that satisfies these demands. The process is called Advanced Design for Quality Avionic Systems (ADQAS). It includes well defined steps and a guide or roadmap to direct the efforts of integrated Product Development (IPD) teams in designing and manufacturing avionics products. The reams tailor their processes to the product and measure progress against predetermined exit criteria for each phase. Equipment design simultaneously stresses the capability for long term operation in the user's environment, and the minimization of variability through the control of manufacturing processes. The product development, verification, and production phases continue the focus on careful verification of product and process attributes and on variability reduction. Implementation of the ADQAS process has already begun on several F-15 development programs, which are referenced in this paper.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"107 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":"125051346","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.1994.332975
M. Jin, Qishan Zhang
In this paper, based on the copy feature of Walsh functions and symmetry copy analysis, a new method of demultiplexing, which is used in the telemetry systems, is proposed, and the performance evaluation by computer simulation is discussed too.<>
{"title":"A new method of demultiplexing","authors":"M. Jin, Qishan Zhang","doi":"10.1109/NAECON.1994.332975","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332975","url":null,"abstract":"In this paper, based on the copy feature of Walsh functions and symmetry copy analysis, a new method of demultiplexing, which is used in the telemetry systems, is proposed, and the performance evaluation by computer simulation is discussed too.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"85 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":"128212939","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.1994.332889
C.E. Lin, K.L. Chen
Presents a real-time monitor system as an aid to air traffic controller in a terminal control area (TCA) The proposed monitor system is composed of a mathematical algorithm and a knowledge-based system to check real time aircraft data from radar data processor (RDP) with flight route constraints in a TCA. The flight route constraints are generated according to flight routes by different arrival and departure methods, TCA geographical conditions, real time weather conditions and other conditions which are significant to flight safety. Linear extrapolations of aircraft position data are calculated to examine constraint violations. The output of TCA monitor system in flashing mode or tone mode alerts the TCA controllers for hazardous condition in advance. Using the proposed TCA monitor system, flight safety in a TCA can be improved, and ATC controller load can also be reduced. Real time simulations for different cases are tested on a personal computer for demonstration.<>
{"title":"An automated TCA monitor system for air traffic control","authors":"C.E. Lin, K.L. Chen","doi":"10.1109/NAECON.1994.332889","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332889","url":null,"abstract":"Presents a real-time monitor system as an aid to air traffic controller in a terminal control area (TCA) The proposed monitor system is composed of a mathematical algorithm and a knowledge-based system to check real time aircraft data from radar data processor (RDP) with flight route constraints in a TCA. The flight route constraints are generated according to flight routes by different arrival and departure methods, TCA geographical conditions, real time weather conditions and other conditions which are significant to flight safety. Linear extrapolations of aircraft position data are calculated to examine constraint violations. The output of TCA monitor system in flashing mode or tone mode alerts the TCA controllers for hazardous condition in advance. Using the proposed TCA monitor system, flight safety in a TCA can be improved, and ATC controller load can also be reduced. Real time simulations for different cases are tested on a personal computer for demonstration.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"27 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":"129155499","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.1994.332941
J.J. Matty, S.G. Tennent, R. Shaw
NASA Lewis Research Center and the Arnold Engineering Development Center (AEDC) have developed a revolutionary alliance for the joint management of an application CFD tool. By leveraging each center's expertise and involving the aerospace industry, this alliance promises to produce a cost-effective tool for both industry and government application. This paper describes the structure, policies, and products of the Alliance.<>
{"title":"National PARC (NPARC) alliance","authors":"J.J. Matty, S.G. Tennent, R. Shaw","doi":"10.1109/NAECON.1994.332941","DOIUrl":"https://doi.org/10.1109/NAECON.1994.332941","url":null,"abstract":"NASA Lewis Research Center and the Arnold Engineering Development Center (AEDC) have developed a revolutionary alliance for the joint management of an application CFD tool. By leveraging each center's expertise and involving the aerospace industry, this alliance promises to produce a cost-effective tool for both industry and government application. This paper describes the structure, policies, and products of the Alliance.<<ETX>>","PeriodicalId":281754,"journal":{"name":"Proceedings of National Aerospace and Electronics Conference (NAECON'94)","volume":"41 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":"132430748","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.1994.333023
J. Guerci, E. Feria
A comprehensive predictive-transform (PT) space-time antenna array processor is presented which optimally integrates two distinct sensor array processing strategies, viz.,optimum multichannel sidelobe cancellation ("prediction") and optimum beamforming ("transformation"). The crux of the technique is the utilization of a multichannel "whitening" model obtained from a previously developed PT signal modeling procedure. As with previous PT applications, such as in coding and estimation, the synergistic effect of the prediction and transformation mechanisms provide additional means for reducing both design and implementation complexity while gradually trading off performance-as measured by the degree of clutter cancellation for the application considered herein. The comprehensive nature of the PT approach is revealed by recognizing that it subsumes, as special cases, such processing strategies as the optimal sidelobe canceller (pure "prediction"), optimal beamformer (pure "transformation"), and other "hybrid" techniques. A new space-time processing architecture is presented which yields substantially better clutter cancellation performance, for the airborne MTI radar problem, over existing hybrid processing strategies, such as single channel optimal MTI followed by optimum beamforming, with only a modest increase in complexity.<>
{"title":"Predictive-transform space-time processing for airborne MTI radar","authors":"J. Guerci, E. Feria","doi":"10.1109/NAECON.1994.333023","DOIUrl":"https://doi.org/10.1109/NAECON.1994.333023","url":null,"abstract":"A comprehensive predictive-transform (PT) space-time antenna array processor is presented which optimally integrates two distinct sensor array processing strategies, viz.,optimum multichannel sidelobe cancellation (\"prediction\") and optimum beamforming (\"transformation\"). The crux of the technique is the utilization of a multichannel \"whitening\" model obtained from a previously developed PT signal modeling procedure. As with previous PT applications, such as in coding and estimation, the synergistic effect of the prediction and transformation mechanisms provide additional means for reducing both design and implementation complexity while gradually trading off performance-as measured by the degree of clutter cancellation for the application considered herein. The comprehensive nature of the PT approach is revealed by recognizing that it subsumes, as special cases, such processing strategies as the optimal sidelobe canceller (pure \"prediction\"), optimal beamformer (pure \"transformation\"), and other \"hybrid\" techniques. A new space-time processing architecture is presented which yields substantially better clutter cancellation performance, for the airborne MTI radar problem, over existing hybrid processing strategies, such as single channel optimal MTI followed by optimum beamforming, with only a modest increase in complexity.<<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":"127904701","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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