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

23-27 May 1994

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  • Proceedings of National Aerospace and Electronics Conference (NAECON'94)

    Publication Year: 1994
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    Freely Available from IEEE
  • Practical techniques for distributed real-time simulation

    Publication Year: 1994, Page(s):890 - 896 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    Real-time aircraft and avionics simulation computing is the foundation of systems used for testing embedded avionics software, for flight training simulation, and for engineering research simulation. Distribution of the simulation software over a set of smaller, inexpensive computers, in lieu of a traditional mainframe has been shown to dramatically reduce the cost of building a real-time simulati... 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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  • 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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  • 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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  • The Integrated Materials Management System: a hazardous materials management program

    Publication Year: 1994, Page(s):1280 - 1287 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    National concern regarding the threats posed by hazardous materials to communities and the environment has resulted in strict regulations. In an effort to assist both DoD and commercial customers in complying with these regulations, Modern Technologies Corporation has developed the Integrated Materials Management System (IMMS) for effective monitoring and control of hazardous materials and hazardo... View full abstract»

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  • Detector and imaging performance of 256×256 LWIR miniband transport multiple quantum well focal plane arrays

    Publication Year: 1994, Page(s):1059 - 1065 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB)

    Single pixel radiometric measurements and array performance of 256×256 miniband-transport multiple quantum well focal plane arrays (FPAs) are presented. The detectors typically have a peak wavelength of 9.1 μm with spectral bandwidth of 1.1 μm. Laboratory measurements using the NVL 3D noise analysis technique indicate that these first generation 256×256 FPAs have a temporal noise... 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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  • Accuracy validation of the IFSARE radar system

    Publication Year: 1994, Page(s):234 - 238 vol.1
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    The validation of a radar system for making topographic measurements is described. The system is an interferometric SAR radar flown by Norden Systems in late 1992 and early 1993 under an ARPA-sponsored program. Both absolute and relative height measurements were made, with aircraft position referenced to an INS/GPS and a separate differential GPS. An initial accuracy prediction was obtained from a... View full abstract»

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  • Commercial electronics in DoD applications: the minimum requirements

    Publication Year: 1994, Page(s):1288 - 1293 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    Best Commercial Practice, “COTS”, ruggedized plastic packaging, HAST, encapsulation, etc. To those of us that are deep into the latest trend to cost reduce the microelectronics devices as used by the DoD and civilian/military space programs, these terms as well as the reliability limits they infer are fairly well understood, or are they? This paper presents an overview of the reliabili... View full abstract»

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  • Feature alignment techniques for pattern recognition

    Publication Year: 1994, Page(s):128 - 132 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    Feature alignment is a necessity for most pattern recognition systems. By definition, a parametric pattern recognition system attempts to classify an object based on a statistical model of the features from that object. These feature statistics are determined during the training process through multiple measurements of an object. In many cases, however, the starting location of these features vari... View full abstract»

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  • Performance analysis of optical heterodyne FSK systems with nonuniform laser FM response

    Publication Year: 1994, Page(s):1077 - 1084 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (588 KB)

    A simple analytical model for evaluating the system performance due to the combined effects of receiver noise, laser phase noise, and laser non-uniform FM response in wide-deviation heterodyne optical FSK system with envelope detection is presented. With this approach, the relative effectiveness of several linecoding schemes, such as alternate mark inversion (AMI), Manchester coding (MC), and dela... View full abstract»

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  • National PARC (NPARC) alliance

    Publication Year: 1994, Page(s):926 - 931 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (300 KB)

    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... View full abstract»

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  • A study on an algorithm of multisensor data fusion

    Publication Year: 1994, Page(s):239 - 245 vol.1
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    Multisensor data fusion seeks to combine data from multiple sensors to perform inferences that may not be possible from a single sensor alone. The two main processes in multisensor data fusion system are the tracking and data fusion algorithms. A new hierarchical algorithm for the multisensor data fusion is proposed in the paper. The realization architecture for the new track fusion equations is a... View full abstract»

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  • Air Terminal Command and Control System (ATCCS)

    Publication Year: 1994, Page(s):1295 - 1300 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (508 KB)

    The Air Terminal Command and Control System for a military application requires, above all, one important asset. That asset is unquestionably, visibility. This does not imply the commercial aspect of visibility, where the most important concern is with the specific locations of the aircraft. Aircraft locations include both aircraft on the ground and in the air. Commercial visibility, as a whole, d... View full abstract»

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  • A tool for design traceability management

    Publication Year: 1994, Page(s):807 - 813 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    The Crew-Centered Cockpit Design (CCCD) Program, administered by the Human Systems Center's Armstrong Laboratory, has attacked the heart of potential communication problems with a software tool named the Design Traceability Manager (DTM). The DTM provides the design team with three useful and practical capabilities: assistance in managing a crew-system design project, guidance through and maintena... View full abstract»

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  • Evaluation of compressed synthetic aperture radar imagery

    Publication Year: 1994, Page(s):319 - 326 vol.1
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (544 KB)

    Three widely employed image compression techniques (Discrete Cosine Transform, DCT; Block Truncation Code, BTC; and Vector Quantization, VQ) were applied to 23 high resolution synthetic aperture radar images (SAR). Image quality metrics (Impulse Response, IPR, and Contrast Ratio, CR) were applied to the original (uncompressed) and the processed (compressed/reconstructed) images. Image fidelity mea... View full abstract»

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  • Minimizing human-machine interface failures in high risk systems

    Publication Year: 1994, Page(s):749 - 752 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (228 KB)

    Human error is the most complex and least understood factor in the failures of complex systems, accounting for as much as 60% to 80% of complex system failures and as much as 96% of simple system failures. We must stop designing systems in which we virtually guarantee that operator errors will occur with catastrophic consequences. The greatest payback in reducing high risk system accidents is to r... View full abstract»

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  • The application of difference method to dim point target detection in infrared images

    Publication Year: 1994, Page(s):133 - 136 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (204 KB)

    This paper deals with the detection of dim point targets in infrared images. Dim point targets detection is always a difficulty in information processing. Researchers have proposed many effective methods; this paper introduces a new method. Whereas difference method has obtained good result in one dimensional signal processing, this paper manages to apply it to two dimensional signal processing, t... View full abstract»

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  • Multi-sensor analysis of the effects of fire in the Alaskan boreal forest

    Publication Year: 1994, Page(s):1085 - 1089 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    Fire is a significant natural process throughout the world's boreal forests, with 10 to 25 million acres burning annually. These fires tend to cover large areas. During severe fire years, forest fires >100,000 acres in size are the norm, and fires >1 million acres are not uncommon. Because of the remote location of boreal forests and the large size of fires, satellite-based imaging remote se... View full abstract»

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  • A proposed real-time ADA test

    Publication Year: 1994, Page(s):932 - 936 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB)

    System developers use a variety of benchmarks to evaluate the performance of a new system, as well as mature the hardware and software. A computer system, in this context, includes the processing hardware as well as the Ada Run Time System. The integration of these elements is incremental and the system matures as software applications of different types run an the computer. Therefore, a wide spec... View full abstract»

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  • Operator interface for a multi-sensor target acquisition system

    Publication Year: 1994, Page(s):638 - 645 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    An advanced multi-sensor, air-to-ground, tactical target acquisition system concept was explored during flight demonstration. The sensors were a millimeter wavelength radar, a forward-looking infrared set, and a laser line scanner. The radar was supported by an automatic target cuer subsystem. A sensor management subsystem served to automate the mission planning, sensor scheduling and pointing tas... View full abstract»

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  • Unconventional algorithm for emitter position location in three-dimensional space using data from two-dimensional direction finding

    Publication Year: 1994, Page(s):246 - 250 vol.1
    Cited by:  Papers (3)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    Various papers have been published concerning emitter position location using angle measurements. The so called triangulation algorithms were formulated mostly for position estimation on the plane. These algorithms are widely applied in Electronic Intelligence (ELINT) and Electronic Warfare (EW) operations. Conventional (classical) algorithms for emitter position determination in three-dimensional... View full abstract»

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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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  • Object-oriented applications in a rapid prototyping environment

    Publication Year: 1994, Page(s):814 - 819 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    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 ... View full abstract»

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