Fast sensitivity-based optimal trajectory updates for descent operations subject to time constraints
Document typeConference report
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessOpen Access
The ability to meet a controlled time of arrival during a continuous descent operation will enable environmentally friendly and fuel efficient descent operations while simultaneously maintaining airport throughput. Previous work showed that guidance strategies based on a frequent recalculation of the optimal trajectory during the descent result in excellent environmental impact mitigation figures while meeting operational constraints in the presence of modelling errors. However, the time lag of recalculating the trajectory using traditional optimisation algorithms could lead to performance degradation and stability issues. This paper proposes an alternative strategy, which allows for fast updates of the optimal trajectory based on parametric sensitivities. Promising results show that the performance of this method is comparable to that of instantaneously recalculating the optimal descent trajectory at each time sample.
© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works37th DASC Best of session (ATM-L: TMA Operations) award, 2018; concedit per l'Institute of Electrical and Electronics Engineers.
CitationDalmau, R.; Baxley, B.; Prats, X. Fast sensitivity-based optimal trajectory updates for descent operations subject to time constraints. A: Digital Avionics Systems Conference. "37th DASC Digital Avionics Systems Conference: London, England, UK, September 23-27, 2018: 2018 conference proceedings". Institute of Electrical and Electronics Engineers (IEEE), 2018, p. 1-10.