Automated generation of realistic near-optimal aircraft trajectories

J. Karelahti, K. Virtanen, John Öström

Research output: Contribution to journalArticleScientificpeer-review

17 Citations (Scopus)

Abstract

A new approach towards the automated solution of realistic near-optimal aircraft trajectories is introduced and implemented in a software named Ace. In the approach, the optimal open-loop trajectory for athree degree-of-freedom aircraft model is first solved by using direct multiple shooting. Then, the obtained trajectory is inverse simulated with a more sophisticated five degree-of-freedom performance model by using an integration inverse method based on Newton’s iteration. The trajectories are evaluated visually and by analyzing errors between the trajectories. If the errors remain within a suitable application-specific tolerance, the inverse simulated trajectory can be considered a realistic near-optimal trajectory that could be flown by a real aircraft. Otherwise, the parameters affecting the optimization and inverse simulation are altered and the computations are repeated. The example implementation of the approach, the Ace software, contains a graphical user interface that provides a user-oriented way for analyzing aircraft minimum time and missile avoidance problems. In the software, the computation of the optimal and inverse simulated trajectories is fully automated. The approach is demonstrated with numerical examples by using Ace.
Original languageEnglish
Pages (from-to)674 - 688
Number of pages15
JournalJournal of Guidance, Control, and Dynamics
Volume31
Issue number3
DOIs
Publication statusPublished - 2008
MoE publication typeA1 Journal article-refereed

Fingerprint

aircraft
Aircraft
trajectory
Trajectories
trajectories
Trajectory
Software
computer programs
software
Degree of freedom
Multiple Shooting
degrees of freedom
aircraft models
Optimal Trajectory
Newton Iteration
Inverse Method
Aircraft models
Graphical User Interface
Missile
Performance Model

Cite this

Karelahti, J. ; Virtanen, K. ; Öström, John. / Automated generation of realistic near-optimal aircraft trajectories. In: Journal of Guidance, Control, and Dynamics. 2008 ; Vol. 31, No. 3. pp. 674 - 688.
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Automated generation of realistic near-optimal aircraft trajectories. / Karelahti, J.; Virtanen, K.; Öström, John.

In: Journal of Guidance, Control, and Dynamics, Vol. 31, No. 3, 2008, p. 674 - 688.

Research output: Contribution to journalArticleScientificpeer-review

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