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Automatic Takeoff and Landing of Unmanned Fixed Wing Aircrafts: A Systems Engineering Approach
Linköping University, Department of Electrical Engineering, Computer Engineering.
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The purpose of this thesis is to extend an existing autopilot with automatic takeoff and landing algorithms for small fixed wing unmanned aircrafts. The work has been done from a systems engineering perspective and as for solution candidates this thesis has a bias towards solutions utilizing fuzzy logic. The coveted promises of fuzzy logic was primarily the idea to have a design that was easily tunable with very little knowledge beyond flight experience for a particular aircraft. The systems engineering perspective provided a way to structure and reason about the project where the problem has been decoupled from different solutions and the work has been divided in a way that would allow multiple aspects of the project to be pursued simultaneously. Though the fuzzy logic controllers delivered functional solutions the promises related to ease of tuning was not fulfilled in a landing context. This might have been a consequence of the designs attempted but in the end a simpler solution outperformed the implemented fuzzy logic controllers. Takeoff did not present the same issues in tuning but did require some special care to handle the initial low airspeeds in an hand launch.

Place, publisher, year, edition, pages
2016. , p. 74
Keyword [en]
Systems Engineering, Fuzzy Logic, Fixed Wing Aircraft, Autopilot, Landing, Takeoff, UAV
National Category
Computer Engineering
Identifiers
URN: urn:nbn:se:liu:diva-133078ISRN: LiTH-ISY-EX--16/5009--SEOAI: oai:DiVA.org:liu-133078DiVA, id: diva2:1055556
External cooperation
Instrument Control Sweden AB
Subject / course
Computer Engineering
Presentation
2016-11-22, Algoritmen, Linköping, 10:15 (Swedish)
Supervisors
Examiners
Available from: 2016-12-15 Created: 2016-12-08 Last updated: 2018-01-13Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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