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Aerospace and Electronics Conference, 1994. NAECON 1994., Proceedings of the IEEE 1994 National

23-27 May 1994

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Displaying Results 1 - 25 of 199
  • Proceedings of National Aerospace and Electronics Conference (NAECON'94)

    Publication Year: 1994
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  • Third generation airport surface detection equipment design

    Publication Year: 1994, Page(s):1301 - 1308 vol.2
    Cited by:  Papers (4)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    The Federal Aviation Administration under the National Airspace System Plan is modernizing its airport radar for surface surveillance. Part of this modernization program includes the installation of the third generation of Airport Surface Detection Equipment known as ASDE-3. This major advancement over existing equipment uses modern radar technology to provide ground controllers with a crisp, clut... View full abstract»

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  • The air traffic controller and Maxwell's Demon

    Publication Year: 1994, Page(s):1309 - 1316 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (460 KB)

    The present world wide system of Air Traffic Control universally depends on an information exchange involving ground radar observations and cooperative application of rules and procedures by pilots in the air and controllers on the ground. The chief function of the controller is to keep traffic moving while “assuring” no conflicts or mid air collisions. In areas of dense traffic the co... View full abstract»

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  • Replacement of the yellow dixie cup

    Publication Year: 1994, Page(s):1135 - 1137 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    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 sys... View full abstract»

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  • An automated TCA monitor system for air traffic control

    Publication Year: 1994, Page(s):1317 - 1324 vol.2
    Cited by:  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (588 KB)

    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 an... View full abstract»

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  • Enhanced gallium arsenide metal-semiconductor field effect transistors designed for high temperature operation

    Publication Year: 1994, Page(s):1138 - 1142 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    An enhanced gallium arsenide (GaAs) metal-semiconductor field effect transistor (MESFET) has been developed which demonstrates the capability of operating at temperatures greater than 350°C. At elevated temperatures, the semi-insulating substrate of traditional GaAs MESFETs begins to conduct significant amounts of current. These leakage currents degrade device performance by introducing inter-... View full abstract»

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  • A new method of demultiplexing

    Publication Year: 1994, Page(s):452 - 454 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (112 KB)

    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 View full abstract»

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  • An approach for deriving object-oriented metrics

    Publication Year: 1994, Page(s):897 - 904 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB)

    The object-oriented approach is gaining wider acceptance in the software engineering community as an alternative to structured design methodologies. The major disadvantage of structured methodologies is the discontinuity between analysis, design, and implementation phases. In object-oriented approach this problem has been taken care of as the same concepts have been extended to all the phases of s... View full abstract»

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  • A kind of neural network similar to ART network with application to radar signal sorting

    Publication Year: 1994, Page(s):398 - 401 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    In order to solve the problem of radar signal sorting in real time, this paper presents a kind of neural network (NN) similar to ART network. Its characteristic is to finish heuristic clustering algorithm of pattern recognition by using adaptive resonance theory (ART) on the basis of making good use of data statistic property. This NN has not the self-stabilized top-down structure of the general A... View full abstract»

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  • A dynamic, nonlinear model for optimal decision-making

    Publication Year: 1994, Page(s):1325 - 1329 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    Decision problems constitute a genre of systems theory which we face everyday in our routine lives. Yet among systems engineers there is disagreement and confusion about how to automate decision processes. This attests to the complexity of many difficult decision problems; finding a common framework for representation will be difficult, if not impossible. The basic elements of numerical modeling o... View full abstract»

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  • Risk management for the B-1B computer upgrade

    Publication Year: 1994, Page(s):1143 - 1149 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    The B-1B has received a great deal of criticism since it was first fielded in 1985. Much of this criticism, deserved or not, was the result of perceived shortcomings in the avionics system-especially the Defensive Avionics System. These shortcomings were largely the result of software deficiencies, the B-1B is now entering a conventional mission upgrade, which will include replacing some of the co... View full abstract»

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  • Ultra-high speed HBT sine ROM for direct digital synthesis application

    Publication Year: 1994, Page(s):461 - 467 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    This paper presents the design and development of a read-only memory (ROM) with 300 ps access time implemented in AlGaAs/GaAs HBT technology. Both a generic 4 K ROM and a compact DDS ROM architecture that minimizes storage requirement are adopted for the look-up table design. Power dissipation for both circuits has been minimized by using of capacitively-coupled active pull-down circuitry View full abstract»

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  • Conceptual design of test aides for flight critical control systems

    Publication Year: 1994, Page(s):911 - 918 vol.2
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (632 KB)

    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 de... View full abstract»

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  • CNDs and RTOKs: are we addressing these problems correctly?

    Publication Year: 1994, Page(s):402 - 410 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1176 KB)

    High rates of Cannot Duplicates (CNDs) and Retest OKs (RTOKs) in aircraft avionics has led to excessive line and shop maintenance times and maintenance loading. This, in turn, results in decreased sortie rates, long logistic tails, and higher life-cycle cost. Grumman has been addressing these problems, via the development of smart BIT (built-in test) technology. This paper discusses this work and ... View full abstract»

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  • Using the Dynamic Environment Simulator for equipment testing

    Publication Year: 1994, Page(s):715 - 719 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    The Dynamic Environment Simulator (DES), a man-rated centrifuge, has many features that may be utilized to support flight equipment development and testing. The robust design of the DES provides potential users with opportunities to expose test hardware to sustained or complex dynamic G environments in a ground-based facility. The DES is capable of operating for extended periods of time at elevate... View full abstract»

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  • Implementing MIL-STD-499B Systems Engineering on a mature program

    Publication Year: 1994, Page(s):1330 - 1337 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    MIL-STD-499B “Systems Engineering“ defines a disciplined design and verification process for developing new systems. It's iterative and balanced approach results in systems that meet all of their intended needs and satisfy all of their intended customers. Mature systems with well defined designs, established specifications, limited requirements traceability, and existing design and man... View full abstract»

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  • The Cyclocraft and its applications

    Publication Year: 1994, Page(s):1272 - 1279 vol.2
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    The paper addresses Cyclocraft, a unique aircraft concept, being developed under the sponsorship of USAF, WPAFB, ASC/XR, and Department of Energy. The Cyclocraft utilizes both aerostatic and aerodynamic lift. It has exceptional operational flexibility and economy, and can be designed for any payload size, e.g. up to 100 tons. Functions of the Cyclocraft's components are described and results of de... View full abstract»

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  • Integration of the AN/ALQ-131(V) electronic countermeasures pod on tactical aircraft using a MIL-STD-1553B interface

    Publication Year: 1994, Page(s):1150 - 1157 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    This paper describes the development and integration of a MIL-STD-1553B interface for the AN/ALQ-131(V) Terminal Threat Electronic Countermeasures (ECM) pod. Integrated circuit devices and the Ada programming language were used to develop a low risk, highly flexible design. The fully programmable interface can communicate with any aircraft electronic system with a MIL-STD-1553B interface. Potentia... View full abstract»

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  • Strategies for the accreditation of an air-to-air situationally interactive combat model (SICM)

    Publication Year: 1994, Page(s):953 - 959 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    This paper discusses the strategies that were used for the accreditation of the situationally interactive combat model (SICM). SICM is a user-friendly, air-to-air combat engagement model that is used to perform analyses of offensive and defensive tactics employment, changes to avionics suite components and aircraft capabilities, and changes of air-to-air armament systems. Several strategies were u... View full abstract»

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  • Symbolic match hypothesis evaluation for UHRR radar targets

    Publication Year: 1994, Page(s):696 - 700 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (260 KB)

    The work described in this paper deals with a non-parametric technique for target recognition. This method makes no assumptions about the underlying statistical processes for the data. Processing of the unknown targets begins with a structural analysis of the radar scattering centers making up the radar signature. The energy, location, and width of the scattering centers are parameterized. This sy... View full abstract»

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  • Performance measures in the genetic design of digital model-following flight-control systems

    Publication Year: 1994, Page(s):564 - 570 vol.1
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    Genetic algorithms can be used to provide a convenient means of tuning the digital PID controllers incorporated in a class of digital model-following systems. However, in the genetic tuning of such PID controllers, various performance measures are available to the designer (such as the difference between non-asymptotically optimal and asymptotically optimal eigenvalue locations, and the maximum mu... View full abstract»

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  • Lane position tracking

    Publication Year: 1994, Page(s):483 - 489 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB)

    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... View full abstract»

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  • Feature extraction for radar ship target recognition using compactly supported wavelets

    Publication Year: 1994, Page(s):66 - 73 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    In this paper, we are mainly concerned with the application of orthogonal discrete wavelet transform in feature extraction for incoherent radar ship target recognition, based on the Daubechies' wavelets (1988). Experiments are carried out for the proposed method with practical video-echo data of four kinds ,and the corresponding results indicate that the computational complexity of the new method ... View full abstract»

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  • An introduction to the S SPIN hash function: making more out of the multidimensional array

    Publication Year: 1994, Page(s):919 - 925 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB)

    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... View full abstract»

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  • Software support for ultra-reliable digital avionics (URDA)

    Publication Year: 1994, Page(s):905 - 910 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB)

    In 1992, Texas Instruments (TI) began executing the Ultra-Reliable Digital Avionics (URDA) contract sponsored by Wright Laboratory. Because of congressional action, the URDA program was suspended and is being restructured at the time of this writing. The purpose of the TI URDA program is to develop an advanced development module (ADM), which is a repackaging of two of TI's Aladdin basic processing... View full abstract»

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