NDLI: Prototype flight management capabilities to explore temporal RNP concepts

Content Provider	IEEE Xplore Digital Library
Author	Ballin, M.G. Williams, D.H. Allen, B.D. Palmer, M.T.
Copyright Year	2008
Description	Author affiliation: NASA Langley Res. Center, Hampton, VA (Ballin, M.G.; Williams, D.H.; Allen, B.D.; Palmer, M.T.)
Abstract	Next generation air transportation system (NextGen) concepts of operation may require aircraft to fly planned trajectories in four dimensions - three spatial dimensions and time. A prototype 4D flight management capability is being developed by NASA to facilitate the development of these concepts. New trajectory generation functions extend todaypsilas flight management system (FMS) capabilities that meet a single required time of arrival (RTA) to trajectory solutions that comply with multiple RTA constraints. When a solution is not possible, a constraint management capability relaxes constraints to achieve a trajectory solution that meets the most important constraints as specified by candidate NextGen concepts. New flight guidance functions provide continuous guidance to the aircraftpsilas flight control system to enable it to fly specified 4D trajectories. Guidance options developed for research investigations include a moving time window with varying tolerances that are a function of proximity to imposed constraints, and guidance that recalculates the aircraftpsilas planned trajectory as a function of the estimation of current compliance. Compliance tolerances are related to required navigation performance (RNP) through the extension of existing RNP concepts for lateral containment. A conceptual temporal RNP implementation and prototype display symbology are proposed.
File Size	732937
File Format	PDF
ISBN	9781424422074
DOI	10.1109/DASC.2008.4702797
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Prototypes Aircraft navigation Aerospace control Trajectory NASA Air transportation Displays Flexible manufacturing systems Meeting planning Capacity planning
Content Type	Text
Resource Type	Article

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