Regions espai-temporals en el context de la resolució de conflictes tàctics en ruta entre aeronaus
- Autores: Thimjo Koca
- Directores de la Tesis: Miquel Àngel Piera i Eroles (dir. tes.)
- Lectura: En la Universitat Autònoma de Barcelona ( España ) en 2020
- Idioma: español
- ISBN: 9788449096051
- Tribunal Calificador de la Tesis: Miquel Vilaplana (presid.), Juan José Ramos González (secret.), Daniel Delahaye (voc.)
- Programa de doctorado: Programa de Doctorado en Ingeniería Electrónica y de Telecomunicación por la Universidad Autónoma de Barcelona
- Materias:
- Enlaces
- Tesis en acceso abierto en: TDX
- Resumen
Air Traffic Management (ATM) is envisioned to change drastically in order to accommodate the increasing demand. For the strategic time horizon, that spans up to 2050, two lines of thoughts are presented. One of them supports a move towards non-controlled airspace and the concept of free flight. The other one seeks to move towards the opposite direction, that of fully automated, controlled airspace. Beyond their conceptual differences, both visions manifest some common components. The necessity for automatic tactical, en-route Conflict Detection & Resolution (CD&R) is one of them.
Although the topic of CD&R has been heavily investigated the last three decades, several issues have not been treated by the literature. In particular, the proposed solvers do not exhibit some level of resilience, they do not provide a complete identification of the surrounding traffic that might be affected by the resolution of the original conflict, they do not allow airspace users to be involved in the Conflict Resolution (CR) in a realistic way in order to achieve efficient resolutions, and they do not provide the maneuver time limits within which feasible resolutions can be achieved.
This work addresses the above issues in the following manner.
The use of spatio-temporal regions instead of unique trajectories is proposed in order to achieve some level of resilience in the CR. Through the proposed “bottleneck” method, the regions’ level of resilience is quantified.
The so called “aerial ecosystem”, the formal construct that serves to achieve complete identification of the relevant surrounding traffic, is formally defined in order to extend the CR with the completeness property. An analysis of historical and projected traffic in order to identify the size of the formed aerial ecosystems is performed.
Pairwise conflict detection is used to construct a full aerial ecosystem. In order to treat cases when several pairwise conflicts co-exist in time with tight spatial bounds, the “aerial ecosystem” concept is extended and the “compound ecosystem” is defined. Moreover, some strategies to mitigate the dependence between the pairwise conflicts within the compound ecosystem are proposed. An analysis of historical and synthetic traffic is performed in order to identify the compound ecosystems that are formed and test the effectivity of the proposed mitigation strategies.
An automated negotiation mechanism, through which airspace users can actively participate in the CR process is adopted. The proposed mechanism is decentralized, provides completeness of the identification process, and offers some level of resilience. In such a manner, airlines can participate in the CR with the purpose of increasing efficiency without revealing their preferences regarding their costs and strategies.
The automated negotiation mechanism is enriched by an initial approach to identify the temporal fences of the delegated aircraft pairwise conflict resolution framework. This information is used to determine the deadline for the automated negotiation procedure.
