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Prototype Conflict Alerting Logic for Free FlightThis paper discusses the development of a prototype alerting system for a conceptual Free Flight environment. The concept assumes that datalink between aircraft is available and that conflicts are primarily resolved on the flight deck. Four alert stages are generated depending on the likelihood of a conflict. If the conflict is not resolved by the flight crews, Air Traffic Control is notified to take over separation authority. The alerting logic is based on probabilistic analysis through modeling of aircraft sensor and trajectory uncertainties. Monte Carlo simulations were used over a range of encounter situations to determine conflict probability. The four alert stages were then defined based on probability of conflict and on the number of avoidance maneuvers available to the flight crew. Preliminary results from numerical evaluations and from a piloted simulator study at NASA Ames Research Center are summarized.
Document ID
19980019279
Acquisition Source
Ames Research Center
Document Type
Reprint (Version printed in journal)
Authors
Yang, Lee C. (Massachusetts Inst. of Tech. Cambridge, MA United States)
Kuchar, James K. (Massachusetts Inst. of Tech. Cambridge, MA United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1997
Publication Information
Publisher: American Inst. of Aeronautics and Astronautics
Subject Category
Aircraft Design, Testing And Performance
Report/Patent Number
AIAA Paper 97-0220
NASA/TM-97-207326
NAS 1.15:207326
Meeting Information
Meeting: Aerospace Sciences Meeting and Exhibit
Location: Reno, NV
Country: United States
Start Date: January 6, 1997
End Date: January 10, 1997
Sponsors: American Inst. of Aeronautics and Astronautics
Distribution Limits
Public
Copyright
Public Use Permitted.

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