NDLI: 4D air traffic control for non-4D-equipped aircraft

Content Provider	IEEE Xplore Digital Library
Author	Jardin, M.R.
Copyright Year	1997
Description	Author affiliation: NASA Ames Res. Center, Moffett Field, CA, USA (Jardin, M.R.)
Abstract	Current concepts for 4-dimensional (4D) time-based air traffic control automation systems are generally designed to control aircraft so that they cross a final control waypoint at a scheduled time, but the trajectory between the initial waypoint and the control waypoint is not explicitly specified. Instead of this type of single-point 4D control, it may be advantageous to use closed-loop control to reference 4D trajectories. The design of a compensator to help air traffic controllers and pilots accurately and efficiently control aircraft to buffered 4D reference trajectories is presented in this paper. The main technical challenge is to develop a control algorithm that efficiently achieves 4D control for aircraft while maintaining acceptable air traffic controller workload levels. The approach is to soften 4D trajectory clearances by allowing aircraft to be within a well-defined error buffer region around the trajectory and to try and synchronize advisory updates with the reference trajectory advisories such that the aircraft remains within the buffer. A bias estimator is used to remove steady-state errors. The control algorithms are developed and a simple example of a 4D control scenario is presented.
Starting Page	1101
Ending Page	1108
File Size	844705
Page Count	8
File Format	PDF
ISBN	0780338324
ISSN	07431619
DOI	10.1109/ACC.1997.609703
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-06-06
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Air traffic control Aircraft Aerospace control Automatic control Control systems Automation Communication system traffic control Error correction Optimal control NASA
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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