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16th DASC. AIAA/IEEE Digital Avionics Systems Conference. Reflections to the Future. Proceedings

30-30 Oct. 1997

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  • Digital Avionics Systems Conference [front matter]

    Publication Year: 1997, Page(s):i - xi
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    Freely Available from IEEE
  • Index Volume I

    Publication Year: 1997, Page(s):0_4 - 0_5
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  • A portable lightweight associate for urban helicopter pilotage

    Publication Year: 1997, Page(s):7.1 - 11-7.1-18 vol.2
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (656 KB)

    The Urban Helicopter Associate System (UHAS) is an advanced demonstration prototype of an associate system for aiding pilots of rotorcraft engaged in complex missions in urban environments. It is the first of a evolving class of lightweight associate systems that provide full associate decision aiding in a lightweight computing environment. The UHAS is hosted on a laptop computer, and is intended ... View full abstract»

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  • CDMA for communications in the aeronautical environment

    Publication Year: 1997, Page(s):9.4 - 21-9.4-28 vol.2
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (752 KB)

    MITRE's Center for Advanced Aviation System Development (CAASD) is involved in planning a next-generation voice/data network for the FAA's Air-Ground/Ground-Air communication system. This system has some unique operational requirements, which make the comparison between TDMA and CDMA a difficult one (as it also is in current cellular radio systems). This work, in support of CAASD, attempts to outl... View full abstract»

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  • High speed simulation scheduler for Cassini spacecraft

    Publication Year: 1997, Page(s):8.2 - 22-8.2-29 vol.2
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (692 KB)

    The Cassini spacecraft will soon journey to Saturn to perform a close-up study of the Saturnian system. Sequences of commands will be sent to the spacecraft by ground personnel to control every aspect of the mission. To validate and verify these command sequences, a bit-level, high-speed simulator (HSS) has been developed. The HSS runs faster than the actual hardware and thus allows time to fix pr... View full abstract»

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  • Medium term conflict detection for free routing: operational concepts and requirements analysis

    Publication Year: 1997, Page(s):9.3 - 27-9.3-34 vol.2
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1024 KB)

    Next generation air traffic management systems will provide automated, early detection of flight path separation conflicts for en-route aircraft. A primary objective of these systems is to provide medium term (10-30 min.) lookahead for early detection and resolution of separation conflicts, and for arrival and departure flow management at busy hub airports. This paper focuses on concepts for confl... View full abstract»

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  • A critical perspective on some aspects of GPS development and use

    Publication Year: 1997, Page(s):9.4 - 9-9.4-20 vol.2
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1088 KB)

    We seek to clarify a few problems associated with GPS use in order to propel their resolution by clearly elucidating the nature of these problems. We express our concerns about (1) certain aspects of prescribed GPS availability augmentation that currently calls for heavy supplemental reliance on (apparently risky) baro-altimeters, (2) the difficulty of ameliorating multipath effects in many civili... View full abstract»

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  • Improved spacecraft attitude filter using a sequentially correlated magnetometer noise model

    Publication Year: 1997, Page(s):8.4 - 9-8.4-16 vol.2
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    Measurement of the geomagnetic field provides a reliable and economical basis for determining the attitude of low-Earth orbiting three-axis stabilized spacecraft. Magnetometers are often part of the momentum management system, working in parallel with the onboard attitude control system (ACS). They may also be used as primary ACS sensors for missions with relatively coarse pointing requirements or... View full abstract»

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  • Production support flight control computers: research capability for F/A-18 aircraft at Dryden Flight Research Center

    Publication Year: 1997, Page(s):7.2 - 8-7.2-23 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1344 KB)

    NASA Dryden Flight Research Center (DFRC) is working with the United States Navy to complete ground testing and initiate flight testing of a modified set of F/A-18 flight control computers. The Production Support Flight Control Computers (PSFCC) can give any fleet F/A-18 airplane an in-flight, pilot-selectable research control law capability. NASA DFRC can efficiently flight test the PSFCC for the... View full abstract»

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  • Microelectromechanical instrument and systems development at the Charles Stark Draper Laboratory, Inc

    Publication Year: 1997, Page(s):8.5 - 33-8.5-40 vol.2
    Cited by:  Papers (1)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (760 KB)

    Draper Laboratory and Boeing North American have formed an alliance to develop very small, low-cost rate sensors for commercial and military applications. Several generation of micro-mechanical gyroscopes have been developed at Draper, using a dissolved wafer process that features single crystal Si anodically bonded to a glass substrate. Resulting sensor die size is approximately 1 mm. When integr... View full abstract»

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  • Surveillance monitoring of parallel precision approaches in a free flight environment

    Publication Year: 1997, Page(s):9.4 - 1-9.4-8 vol.2
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    The FAA is conducting evaluations of precision runway monitoring (PRM) surveillance techniques. This paper describes the evaluation results of the Multilateration/ADS-B system trials conducted at Atlanta-Hartsfield international airport (ATL) in 1997. The performance of time difference of arrival (TDOA) position multilateration of aircraft Mode S and mode A/C transmissions was evaluated, in additi... View full abstract»

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  • ProphetTM-The engine for integrated risk management

    Publication Year: 1997, Page(s):6.1 - 9-6.1-15 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1400 KB)

    Hughes has developed a powerful risk management toolset, named ProphetTM, which has proven highly successful in managing several programs, and is now being deployed throughout Hughes. This paper describes ProphetTM features, the processes it supports, and the concepts behind them. Features include user-friendly input screens, roll-up risk factors, automated risk reduction cha... View full abstract»

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  • A study of commercial flight crew self-separation

    Publication Year: 1997, Page(s):6.3 - 18-6.3-25 vol.2
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (844 KB)

    The concept of “free flight” is intended to emphasize more flexibility for operators in the National Airspace System by providing more opportunities for aircraft self-separation. The purpose of this simulation was to begin examining some of the communication and procedural issues associated with self-separation in the enroute environment. A simulation demonstration was conducted in the... View full abstract»

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  • Overview: Precision landing/hazard avoidance concepts and MEMS technology insertion for human Mars lander missions

    Publication Year: 1997, Page(s):8.5 - 18-8.5-25 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (604 KB)

    Recent images from the Hubble Space Telescope offer conclusive evidence that the presence of clouds and dust storms can impair hazard detection and pose a threat to safe landing of planetary exploration spacecraft. It is also well documented that current technology and planetary landing methodologies that use the Deep Space Network (DSN) are inadequate to support all human Mars mission phases. The... View full abstract»

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  • Avionics systems technology, development, and applications

    Publication Year: 1997, Page(s):6.4 - 10-6.4-16 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (540 KB)

    NASA's New Millennium Program (NMP) is adopting the faster-better-cheaper philosophy to enable NASA to maintain low cost, high and evolving technology satellites. Industry has responded by designing, developing, and manufacturing a single-chip, radiation hardened flight computer processor and as well as a single-chip, radiation hardened MIL-STD-1553B/1773 Remote Terminal (RT). NASA's NMP Microwave... View full abstract»

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  • Spacecraft attitude sensor calibration from on-orbit experience

    Publication Year: 1997, Page(s):8.4 - 1-8.4-8 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (744 KB)

    Soon after launch, most spacecraft go through an in-orbit checkout phase. Activities during this phase often include calibration of the attitude sensors. Occasionally, recalibration is required during the life of the mission. This paper contains a description of the types of calibration that are performed, the reasons for performing them, factors that must be considered when planning calibration, ... View full abstract»

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  • An overview of the VITAL program

    Publication Year: 1997, Page(s):7.2 - 1-7.2-7 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB)

    VITAL is a Defense Advanced Research Projects Agency (DARPA) Technology Reinvestment Project (TRP) with the objective of reducing the life cycle cost of vehicle management systems by 50% with respect to current systems. The approach is to develop an open architecture with common hardware and software building blocks based on commercial parts and practices. The approach will be applicable to a wide... View full abstract»

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  • DC-XA engine plume diagnostics: data collection utilizing a COTS PC

    Publication Year: 1997, Page(s):8.1 - 35-8.1-41 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1064 KB)

    Marshall Space Flight Center's Optical Plume Anomaly Detection (OPAD) systems have been developed for the purpose of monitoring rocket engine health by identifying and quantifying trace elements in exhaust plumes. The opportunity to put an OPAD instrument aboard the DC-XA test vehicle afforded a valuable first chance to test the technology in an environment for which it is ultimately intended. Met... View full abstract»

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  • Assessment of field trials, algorithmic performance, and benefits of the User Request Evaluation Tool (URET) conflict probe

    Publication Year: 1997, Page(s):9.3 - 35-9.3-44 vol.2
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1008 KB)

    In order to respond to rising demands for services from the National Airspace System (NAS), the Federal Aviation Administration (FAA) and The Mitre Corporation's Center for Advanced Aviation System Development (CAASD) have developed and evaluated a set of en route air traffic control (ATC) decision support capabilities based on many of years of earlier work on the Advanced En Route ATC (AERA) prog... View full abstract»

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  • Pilot non-conformance to alerting system commands during closely spaced parallel approaches

    Publication Year: 1997, Page(s):9.1 - 1-9.1-8 vol.2
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (924 KB)

    Pilot non-conformance to alerting system commands has been noted in general and to a TCAS-like collision avoidance system in a previous experiment. This paper details two experiments studying collision avoidance during closely-spaced parallel approaches in IMC, and specifically examining possible causal factors of, and design solutions to, pilot non-conformance View full abstract»

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  • Robust/low cost SSPCs are finally available

    Publication Year: 1997, Page(s):7.3 - 31-7.3-36 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    New commercial aircraft, satellites, tanks, and various military platforms are turning to Solid-State Power Controllers (SSPCs). SSPCs in the late 1990's offer system cost savings, higher reliability, CPU interfacing, low power dissipation, and smart circuit breaker options with true I2T trip characteristics. They provide features that only solid-state switching technology can support s... View full abstract»

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  • Cockpit weather information (CWIN) system

    Publication Year: 1997, Page(s):7.1 - 1-7.1-4 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (936 KB)

    The objective of this advanced concept, Cockpit Weather Information System (CWIN), is to develop an aeronautical system that delivers real-time graphical weather information with global-coverage to the flight deck of an aircraft via a satellite communications system (SATCOM)/global positioning system (GPS) View full abstract»

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  • Low-level plight capability of a future military transport aircraft based on commercial avionics

    Publication Year: 1997, Page(s):7.2 - 24-7.2-32 vol.2
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB)

    There is a need for a new military transport aircraft, which can cope with the operational requirements to improve the current airtransport forces of the European countries to satisfy tactical, logistic and future operations, at the beginning of the next century. Significant requirements, which relate to the avionics and mission systems, are for instance: low-level flight capability and board-auto... View full abstract»

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  • Exploration of key operational issues for the midterm NAS

    Publication Year: 1997, Page(s):6.1 - 1-6.1-8 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (560 KB)

    The FAA's Flight 2000 project is an innovative initiative to implement and validate selected operational improvements leading to Free Flight. It integrates new avionics, new ground systems, new procedures, avionics certification, and operational approval. This paper discusses some key operational issues that need to be resolved in developing new capabilities for the National Airspace System (NAS) ... View full abstract»

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  • A modular distributed avionics architecture for launch vehicles

    Publication Year: 1997, Page(s):8.3 - 9-8.3-15 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    The architecture and design of a Modular Distributed Avionics System (MDAS) for launch vehicles are presented which attempt to lower costs in several ways: use of commercial components and processes; common module design which includes flexible sensor signal conditioning and flexible valve control; reduction of cabling cost and weight; elimination of power conditioning requirements; reduction of b... View full abstract»

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