15th DASC. AIAA/IEEE Digital Avionics Systems Conference

27-31 Oct 1996

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Displaying Results 1 - 25 of 72
  • Migration of Integrated Modular Avionics to space

    Publication Year: 1996, Page(s):131 - 137
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (828 KB)

    An overview of the recent work in migrating the Integrated Modular Avionics (IMA) architecture to space is presented. IMA is a candidate avionics architecture for space vehicles. The IMA was originally developed for the Boeing 777 program; since the IMA's successful implementation on the 777 program, significant progress has been made on the space IMA. This migration has focused on three areas: th... View full abstract»

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  • Fault/failure analysis of the Tandem NonStop-UX operating system

    Publication Year: 1996, Page(s):491 - 497
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (564 KB)

    This paper presents the results of an analyse's of failures in several releases of Tandem's NonStop-UX operating system. NonStop-UX is based on UNIX System V. The analysis covers software failures from the field and failures reported by Tandem's test center. Faults are classified based on the status of the reported failures, the locations of the code that detected the problems, the panic messages ... View full abstract»

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  • Lessons learned from incorporation of commercial computer aided software engineering tools in a flight critical software test environment

    Publication Year: 1996, Page(s):125 - 130
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (620 KB)

    In flight critical, software intensive, avionics systems, a major technical and managerial component is the testing and analysis of the developed software. In many of these systems the software must be “ultra-reliable” (work the first time and every time) and produced within schedule and budget. In this paper, we will examine how an existing successful software verification and validat... View full abstract»

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  • Real time recovery of fault tolerant processing elements

    Publication Year: 1996, Page(s):485 - 490
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (460 KB)

    A critical problem in the design of ultra-reliable fault tolerant systems is that of how to bring a redundant member back on-line, after a transient fault, without degrading critical real-time functions. Recovery from transients is imperative to maintain necessary system reliability in the face of transient errors which have been estimated to occur at a rate of 5 to 100 times that of permanent fai... View full abstract»

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  • A shared model of intentions for Free Flight

    Publication Year: 1996, Page(s):179 - 184
    Cited by:  Papers (9)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (592 KB)

    This paper describes a research program that validates a real-time model of multi-agent shared intentions in a set of manned Free Flight air operations scenarios performed in a high-fidelity, multi-agent simulator system. The shared model of intentions is based on the OPAL software system previously developed by Applied Systems Intelligence, Inc. The validation was conducted as a series of manned ... View full abstract»

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  • The Aeronautical Telecommunications Network (ATN) testbed

    Publication Year: 1996, Page(s):117 - 122
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (480 KB)

    The Aeronautical Telecommunication Network (ATN) is being defined within the International Civil Aviation Organization (ICAO) as a digital data communications network for the aeronautical community. ATN routers will link the diverse networks and technologies within the aeronautical environment into an internetwork. The routers provide intelligence to select the best communications path for each pa... View full abstract»

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  • Aircraft collision avoidance based on GPS position broadcasts

    Publication Year: 1996, Page(s):393 - 399
    Cited by:  Papers (12)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (540 KB)

    The current airborne collision avoidance system provides pilots with approximate information on the relative location of nearby traffic, and with recommended escape maneuvers in the vertical plane. It relies on range measurements, and suffers from high false alarm rate. This paper studies a new collision avoidance system, which is based on periodic broadcasts of aircraft position as derived by an ... View full abstract»

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  • Dynamic fault tree analysis for digital fly-by-wire flight control system

    Publication Year: 1996, Page(s):479 - 484
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (388 KB)

    Digital Fly-By-Wire (FBW) Flight Control System (FCS) is designed to achieve high level of reliability, frequently employ high level of redundancy. Dynamic redundancy employed in FEW system can realize complex fault and error diagnosis, recovery and reconfiguration. It is very difficult to analyze the reliability of the FEW system by traditional methods, such as Fault Tree Analysis (FTA) or Networ... View full abstract»

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  • Honeywell FLASH fiber optic motherboard evaluations

    Publication Year: 1996, Page(s):167 - 174
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1084 KB)

    The use of fiber optic data transmission media can make significant contributions in achieving increasing performance and reduced life cycle cost requirement placed on commercial and military transport aircraft. For complete end-to-end fiber optic transmission, photonics technologies and techniques need to be understood and applied internally to the aircraft line replaceable units (LRUs) as well a... View full abstract»

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  • SAE AS4893 Generic Open Architecture (GOA) framework

    Publication Year: 1996, Page(s):217 - 222
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (480 KB)

    The generic open architecture (GOA) framework is a Society of Automotive (SAE) Avionics Systems Division standard, SAE AS4893. The GOA framework was developed as a framework for discussing open systems architecture and for identifying critical components and interfaces. The GOA framework is being used as a framework within the avionics community for developing a preferred set of interface standard... View full abstract»

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  • VDL Mode 4/STDMA-a CNS data link

    Publication Year: 1996, Page(s):111 - 116
    Cited by:  Papers (2)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (452 KB)

    At its tenth Air Navigation Conference (1991), the ICAO endorsed the so-called Communication, Navigation, Surveillance/Air Traffic Management concept, CNS/ATM. This concept envisages the use of data link communications, satellite navigation and automatic dependent surveillance (ADS). The Swedish Civil Aviation Administration (SCAA) has been involved in the technical and operational development of ... View full abstract»

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  • Helicopters, simulators, and training

    Publication Year: 1996, Page(s):387 - 391
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (400 KB)

    Although there are many commonalties between fixed-wing and rotary-wing aircraft, both in terms of their performance and the missions they fly, their extensive differences demand that we recognize the training requirements that are unique to rotary-wing vehicles. In addition, the rotary-wing industry is made up of many widely distributed small operators whose training needs and logistics vary wide... View full abstract»

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  • Electromagnetic vulnerability testing of aircraft using mode-stirred techniques

    Publication Year: 1996, Page(s):351 - 357
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (448 KB)

    Electromagnetic vulnerability (EMV) testing is typically performed on aircraft using a standard method where the aircraft is directly radiated by an antenna, with no mode-stirring. Since a standing wave pattern will cause peaks and nulls in the field inside the aircraft, many antenna aspect angles should be used to assure that all equipment on board the aircraft is exposed to the appropriate field... View full abstract»

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  • Reconfiguration in an integrated avionics design

    Publication Year: 1996, Page(s):471 - 478
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (660 KB)

    This report covers the subject of F-22 avionics core processing fault tolerance and reconfiguration. Fault tolerance is defined as a survivable attribute of a system that allows it to deliver its expected service after faults have manifested themselves within the system. The report addresses all dimensions of the integrated avionics processing fault tolerance/reconfiguration implementation. This i... View full abstract»

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  • Optical demonstration on Honeywell FLASH program

    Publication Year: 1996, Page(s):159 - 165
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1168 KB)

    Flight critical system architects are increasingly integrating aircraft control and management functionality. This functional integration increases performance and cost of ownership requirements on the communication pathways. Optical signal transmission is an attractive approach to satisfying these system requirements. Investigations and demonstrations of optical signaling are needed to validate a... View full abstract»

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  • Open systems architecture and commercial off the shelf technology applied to retrofit military display subsystems

    Publication Year: 1996, Page(s):211 - 216
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (496 KB)

    This paper presents considerations and tradeoffs in using an Open Systems Architecture (OSA) and Commercial Off The Shelf (COTS) technology to meet the needs of retrofit military avionics display systems applications. The issues that systems designers must consider when applying OSA/COTS to retrofit aircraft applications are listed and discussed. The role of OSA and COTS in modular avionics system... View full abstract»

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  • Robust message integrity for FANS 1 and CNS/ATM

    Publication Year: 1996, Page(s):103 - 110
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (672 KB)

    The International Civil Aviation Organization (ICAO) is developing a Communication, Navigation, and Surveillance/Air Traffic Management system (CNS/ATM) to provide advanced data link services between aircraft and ground hosts. These services will be provided over the Aeronautical Telecommunications Network (ATN) infrastructure, which is yet to be fully implemented. In the interim, the FANS 1 (Futu... View full abstract»

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  • Telemaintenance applications for the WearableTMPC

    Publication Year: 1996, Page(s):407 - 413
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (564 KB)

    This paper explores the concept of providing military maintenance personnel with a wearable personal computer and interactive electronic technical manual (IETM) support as maintenance tasks are performed at equipment sites. Wearable PCs, when combined with PCMCIA card technologies, are an evolutionary hardware concept worn on the technician's body, enabling personnel to obtain information such as ... View full abstract»

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  • The incorporation of fibre channel and scalable coherent interface technologies in avionics systems

    Publication Year: 1996, Page(s):365 - 372
    Cited by:  Papers (2)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (700 KB)

    New and emerging combat aircraft, especially those with sophisticated surveillance and multi-spectral capabilities, acquire and need to move and process data at enormous data rates. Avionics architectures have evolved over time to adapt to these demanding data acquisition, data movement, data processing, and data storage requirements. The trend has been from dedicated, through federated, to distri... View full abstract»

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  • Affordable reliable packaging technologies for avionics systems of the coming era

    Publication Year: 1996, Page(s):423 - 431
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (680 KB)

    Lower cost, reliable military avionics systems can be realized by leveraging key enabling packaging technologies from the commercial electronics industry. This includes the technologies and corresponding infrastructures which are arising in response to the Consumer Portable Electronics COTS market. This paper argues that innovative use of emerging commercial packaging technologies will be required... View full abstract»

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  • The 1996 MIT/Boston University/Draper Laboratory autonomous helicopter system

    Publication Year: 1996, Page(s):381 - 386
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (584 KB)

    The Massachusetts Institute of Technology, Boston University and Draper Laboratory have cooperated to develop an autonomous aerial vehicle that won the 1996 International Aerial Robotics Competition. This paper describes the approach, system architecture and subsystem designs for the entry. This entry represents a combination of many technology areas: navigation, guidance, control, vision processi... View full abstract»

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  • Electromagnetic coupling paths evaluated from inside a commercial aircraft

    Publication Year: 1996, Page(s):345 - 350
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (516 KB)

    In 1995, the Federal Aviation Administration (FAA) Technical Center's Aircraft Security Research and Development (R&D) Department initiated a Research Grant with Veda Incorporated to investigate aircraft avionics' response to onboard intentional electromagnetic interference (EMI). Many organizations have performed applicable research in areas similar to this goal however, several basic questio... View full abstract»

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  • Cavity to cavity coupling measurements in commercial aircraft and the implications for on-board operation of personal electronic devices

    Publication Year: 1996, Page(s):333 - 338
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (452 KB)

    Characterization of the cavity electromagnetic environment and various coupling mechanisms to aircraft systems have been performed for internal emitters. One potential coupling mechanism is radiative coupling to wire bundles which then penetrate an electronic system enclosure as well as direct aperture coupling to the enclosure. This paper addresses the issue of cavity-to-cavity coupling or the el... View full abstract»

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  • Fault-tolerance: a methodology for implementing highly dependable systems

    Publication Year: 1996, Page(s):465 - 470
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (548 KB)

    Dependability is defined as the trustworthiness of a system such that: reliance may be justifiably placed on the service it delivers and; the system has the ability to provide required service whenever that service is needed. The service delivered by a system is its behavior as perceived by its user(s); a user is another system (human or physical) that interacts with the dependable system. This pa... View full abstract»

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  • Fly-by-light flight control system development for transport aircraft

    Publication Year: 1996, Page(s):153 - 158
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (404 KB)

    The Fly-By-Light Advanced System Hardware (FLASH) program is developing and demonstrating dual use fly-by-light (FBL) hardware for flight control systems On military and commercial aircraft. Under the transport aircraft portion of this program, we and our industry team-mates are demonstrating two representative fly-by-light systems. These fly-by-light demonstrations include a ground demonstration ... View full abstract»

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