NDLI: Relative effects of trajectory prediction errors on the aac autoresolver

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Relative effects of trajectory prediction errors on the aac autoresolver

Content Provider	NASA Technical Reports Server (NTRS)
Author	Lauderdale, Todd
Copyright Year	2011
Description	Trajectory prediction is fundamental to automated separation assurance. Every missed alert, false alert and loss of separation can be traced to one or more errors in trajectory prediction. These errors are a product of many different sources including wind prediction errors, inferred pilot intent errors, surveillance errors, navigation errors and aircraft weight estimation errors. This study analyzes the impact of six different types of errors on the performance of an automated separation assurance system composed of a geometric conflict detection algorithm and the Advanced Airspace Concept Autoresolver resolution algorithm. Results show that, of the error sources considered in this study, top-of-descent errors were the leading contributor to missed alerts and failed resolution maneuvers. Descent-speed errors were another significant contributor, as were cruise-speed errors in certain situations. The results further suggest that increasing horizontal detection and resolution standards are not effective strategies for mitigating these types of error sources.
File Size	2516604
Page Count	43
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20110014333
Archival Resource Key	ark:/13960/t58d4ws3t
Language	English
Publisher Date	2011-03-28
Access Restriction	Open
Subject Keyword	Air Transportation And Safety Errors Aircraft Safety Trajectory Planning Aircraft Guidance Flight Paths Trajectories Air Traffic Control Collision Avoidance Air Navigation Aircraft Approach Spacing Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Presentation

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