DocumentCode :
2312194
Title :
En-route descent trajectory synthesis for air traffic control automation
Author :
Slattery, Rhonda A. ; Zhao, Yiyuan
Author_Institution :
NASA Ames Res. Center, Moffett Field, CA, USA
Volume :
5
fYear :
1995
fDate :
21-23 Jun 1995
Firstpage :
3430
Abstract :
This paper discusses en-route trajectory synthesis that is key to the Center-TRACON Automation System developed at NASA Ames for air traffic control automation. Based on trajectories produced in the Trajectory Synthesizer (TS) module, computer advisories are generated that help controllers to produce a safe, efficient, and expeditious flow of traffic for the extended terminal area. TS synthesizes trajectories from the initial position to the final position in the en-route area for one aircraft at a time by integrating a set of simplified point-mass equations. Specifically, TS separates the horizontal path from the vertical trajectory. The horizontal path is constructed from specified waypoints using straight lines and constant-radius turns. The vertical trajectory is divided into a series of flight segments. Three types of flight profiles are defined by connecting selected segments in a pre-determined order: fast, nominal and slow. Each profile can produce a certain range of arrival times. In numerical computations, a second-order Runge-Kutta scheme is used for integrating equations of motion. A regula falsi iterative scheme is employed to determine the speed that will meet a specified arrival time. Two flight scenarios are used to illustrate the TS solution procedure
Keywords :
Runge-Kutta methods; aerospace computing; air traffic control; iterative methods; Center-TRACON Automation System; NASA; air traffic control automation; constant-radius turns; en-route descent trajectory synthesis; equations of motion; extended terminal area; horizontal path; iterative scheme; second-order Runge-Kutta scheme; vertical trajectory; Air traffic control; Aircraft; Ambient intelligence; Automation; Computer displays; Control system synthesis; Equations; Identity-based encryption; NASA; Synthesizers;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
American Control Conference, Proceedings of the 1995
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2445-5
Type :
conf
DOI :
10.1109/ACC.1995.532248
Filename :
532248
Link To Document :
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