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Validation and Optimization of a non-cooperative Sense and Avoid System
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Flight Dynamics.
2017 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

To complement the established cooperative S&A system named TCAS which uses vertical avoid trajectories, Airbus Defence and Space developed a non-cooperative S&A System which favors lateral avoidance maneuvers. For this non-cooperative system, intruder aircraft are detected by radar before five different avoid trajectories are computed of which the best one is chosen. The presented work consists of the validation and optimization of this S&A System by simulating many different aircraft encounter scenarios. For validation purposes, the probability tables provided by the European Encounter Model (EEM) were used to compute the most probable aircraft encounters. As a result of the optimization process, the number of Near Mid-Air Collisions (NMACs) could be reduced significantly, and flight route constraints were included. More than 85,000 simulations were carried out to assess the performance of the system. The simulations revealed that the performance requirement for the S&A System, namely being at least as good as a human on-board pilot, could be fulfilled for encounter scenarios in which the ownship was flying level.

Place, publisher, year, edition, pages
2017. , p. 13
Series
TRITA-AVE, ISSN 1651-7660 ; 2017:72
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-223333OAI: oai:DiVA.org:kth-223333DiVA, id: diva2:1183389
External cooperation
Airbus DS
Examiners
Available from: 2018-02-20 Created: 2018-02-16 Last updated: 2018-02-20Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • de-DE
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Output format
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