NDLI: Conflict detection and planar resolution for air traffic control

Content Provider	IEEE Xplore Digital Library
Author	Inselberg, A.
Copyright Year	2001
Description	Author affiliation: Dept. of Comput. Sci., Tel Aviv Univ., Israel (Inselberg, A.)
Abstract	An algorithm for planar (i.e. no altitude change) conflict resolution in air traffic control (ATC) is presented. By using the point-line duality in 2D of the parallel coordinates methodology, and a field of particles incorporating the motion constraints associated with the aircraft, a "map" in time-and-space of the conflict as well as the conflict-free regions is obtained. Then the algorithm constructs maneuvers, satisfying the constraints, which move the aircraft in conflict to the nearest available conflict-free trajectories. In the process, it is ensured that the maneuvers do not generate new conflicts. The resolution problem, being in general NP-hard, may require very high complexity even in real situations. The need for real-time solutions is handled by cascading (or running in parallel) the algorithm in levels of increasing complexity O(qN/sup (p+1)/logN), where q and N are the number of allowable maneuvers and the number of aircraft respectively, and where the minimum p=1, 2, ..., R needed to resolve a complex conflict scenario is a measure of the scenarios' (i.e. input) complexity. As an illustration, a complex conflict scenario is resolved with complexity O(N/sup 2/logN). The resolution problem is in a sense "dual" to the interception problem. An example is given where the aforementioned time-space map provides specific solutions of the One-Shot problem, which is in general NP-complete. That is "shots", if they exist, are found which intercept all the aircraft.
Starting Page	1200
Ending Page	1205
File Size	512789
Page Count	6
File Format	PDF
ISBN	0780371941
DOI	10.1109/ITSC.2001.948834
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-08-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Air traffic control Protection Aircraft manufacture USA Councils Traffic control Computer science Change detection algorithms Safety Shape Trajectory
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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