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Chu, W. (author)Trajectory optimization is an essential part of space plane mission design. One important aspect of trajectory optimization for re-entry vehicles is to minimize the total heat load at the surface when it returns and the heat flux should remain below certain limit, meanwhile, the vehicle should land at the desired point. The methods used for re...master thesis 2007
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- Filipe, N.R.S. (author) master thesis 2008
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Grotens, R. (author)Nonlinear Dynamic Inversion (NDI) is a promising method for Fault Tolerant Flight Control. The NDI algorithm cancels out the aircraft dynamics based on a dynamic aircraft model such that the closed loop system behaves linearly. The aircraft model is estimated online, which allows it to accommodate changes in the aircraft configurations and...master thesis 2010
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Acquatella, B.P.J. (author)In order to meet requirements in terms of robustness, stability, and performance for future generations of advanced attitude control systems, a sensor-based approach using Incremental Backstepping control is developed and proposed in this thesis. Assuming full state availability and fast control action, the resulting time-scale separation...master thesis 2011
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Mendes, A.S. (author)The development of systems that allow unmanned aerial vehicles, known as UAVs, to perform tasks autonomously is a current trend in aerospace research. The specific aim of this thesis is to study and achieve vision-based automatic landing of a quadrotor UAV on a floating platform, a known target that possesses oscillatory behavior. The research...master thesis 2012
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Koschorke, J.F.R. (author)The sensor-based approach of Incremental Backstepping is applied to flight control law design in this research project. It allows the usage of the same control law on different types of aircraft without the need for redesign. Apart from full state availability, the derivation of Incremental Backstepping assumes instantaneous control action. Due...master thesis 2012
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Koopmans, J.A. (author)The Delfly is subject of great interest from the aerodynamics department at the TU Delft. Current wind tunnel measurements are performed with a dual high speed camera setup that detect particles injected in the wind stream. The difference between two subsequent images provides information on the flow field around the wings of the Delfly. These...master thesis 2012
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Bijl, H.J. (author)Self-learning controllers offer various strong benefits over conventional controllers, the most important one being their ability to adapt to unexpected circumstances. Their application is however limited, the most important reason being that, for self-learning controllers to work on continuous domains, nonlinear function approximators are...master thesis 2012
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Tijmons, S. (author)In the field of Micro Air Vehicle (MAV) research the use of flapping wings attracts a lot of interest. The potential of flapping wings lies in their efficiency at small scales and their large flight envelope with a single configuration. They have the possibility of performing both energy efficient long distance flights as well as hovering...master thesis 2012
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Govindarajan, N. (author)This dissertation presents an optimal control framework to determine a collection of open-loop command signals, that mathematically guarantees operation of a dynamical system within prescribed state constraints. The framework is applied to estimate real-time command margins for aircraft control systems so that, safe operation within the flight...master thesis 2012
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Visser, T. (author)A new type of multivariate spline, based on tensor-product splines, is introduced and applied for function approximation purposes. An algorithm for system identification using these multiplex splines is developed and validated on DelFly II flight tests data.master thesis 2014
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Bosman, L.M. (author)In applications like model identification accurate methods for data approximation are required. Multivariate simplex B-splines form a class of nonlinear function approximators capable of approximating scattered data. Simplex B-splines are piecewise polynomials defined on a triangulation. Currently, data approximation using simplex B-splines is...master thesis 2014
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Molenkamp, D. (author)A novel intelligent controller selection method for quadrotor attitude and altitude control is presented that maintains performance in different regimes of the flight envelope. Conventional quadrotor controllers can behave insufficiently during aggressive manoeuvring, in extreme angles the quadrotor is unable to maintain height which may result...master thesis 2016
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- Schonebaum, G. (author) master thesis 2016
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Cheung, C. (author)Unmanned aerial vehicle (UAV) applications are increasing and there is a need for safe operations in terms of avoidance. The Velocity Obstacle (VO) method uses position and velocity vectors to determine if a collision is going to happen; an adaptation of the VO- method is called the Selective Velocity Obstacle (SVO) method and adds navigation...master thesis 2016
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Unni, S. (author)The ease of availability of low cost aerial platforms has given rise to extensive research in the field of autonomous navigation. There are strong indications in existing research that UAV autonomy leads to significant gains in terms of safety as well as performance in a number of scenarios, including but not limited to search and rescue...master thesis 2016
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van 't Veld, R.C. (author)Incremental Nonlinear Dynamic Inversion (INDI) is a variation on Nonlinear Dynamic Inversion (NDI) retaining the high-performance advantages of NDI, while increasing controller robustness to model uncertainties and decreasing the dependency on the vehicle model. After a successful flight test with a multirotor Micro Aerial Vehicle (MAV), the...master thesis 2016
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Regtuit, R.M. (author)Acceptance of automation has been a bottleneck for successful introduction of automation in Air Traffic Control. Strategic conformal automation has been proven to increase automation acceptance, by creating a better match between automation and operator decision-making. In this paper strategic conformal automation for Air Traffic Control is...master thesis 2016
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- Beekman, M.E.J. (author) master thesis 2016
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Verbist, S. (author)Reinforcement Learning is a much researched topic for autonomous machine behavior and is often applied to navigation problems. In order to deal with growing environments and larger state/action spaces, Hierarchical Reinforcement Learning has been introduced. Unfortunately learning from experience, which is central to Reinforcement Learning,...master thesis 2017