Blar i NTNU Open på forfatter "Johansen, Tor Arne"
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Detection of icing and actuators faults in the longitudinal dynamics of small UAVs using an LPV proportional integral unknown input observer
Rotondo, Damiano; Cristofaro, Andrea; Johansen, Tor Arne; Nejjari, Fatiha; Puig, Vicenç (Journal article; Peer reviewed, 2016)This paper proposes a linear parameter varying proportional integral unknown input observer (PI-UIO) for the diagnosis of actuator faults and icing in unmanned aerial vehicles. It is shown that in presence of sensor noise, ... -
Development and testing of a risk-based control system for autonomous ships
Johansen, Thomas; Blindheim, Simon André Johnsen; Torben, Tobias Valentin Rye; Utne, Ingrid Bouwer; Johansen, Tor Arne; Sørensen, Asgeir Johan (Journal article; Peer reviewed, 2023)This paper presents a method for designing and verifying a control system with risk-based decision-making capabilities to improve its intelligence and enhance the safe operation of autonomous systems. The decision-making ... -
Development of a Low-Cost Dynamic Positioning System
Stene Sømliøy, Vegard (Master thesis, 2020) -
Development of a miniaturized drone for indoor climate monitoring
Eikeland, Sindre Steen (Master thesis, 2020)Denne masteroppgåva tar eit første steg inn i utviklinga av ei autonom drone for overvaking av innandørsklima. Ei ramme vart designa og 3D-printa for å fungere som eit grunnlag for framtidig testing av sensorar for overvaking ... -
Development of a small Satellite with a Hyperspectral Imaging Payload and Onboard Processing for Ocean Color
Bakken, Sivert (Doctoral theses at NTNU;2022:61, Doctoral thesis, 2022) -
Development of an interface between the Autoferry's autonomy system and an external motion controller
Voilås, Hallvar (Master thesis, 2021)Abstract will be available on 2024-06-07 -
Development, Implementation and Testing of Two Attitude Estimation Methods for Cube Satellites
Jenssen, Kristian Lindgård; Yabar, Kaan Huseby (Master thesis, 2011)As a part of the CUBESAT project at the Norwegian University ofScience and Technology (NTNU), this paper studies development andcomparison of attitude estimation methods for small cube satellites usinglow-cost sensors. The ... -
Diagnosis of icing and actuator faults in UAVs using LPV unknown input observers
Rotondo, Damiano; Cristofaro, Andrea; Johansen, Tor Arne; Nejjari, F; Puig, V (Journal article; Peer reviewed, 2017)This paper proposes a discrete-time linear parameter varying (LPV) unknown input observer (UIO) for the diagnosis of actuator faults and ice accretion in unmanned aerial vehicles (UAVs). The proposed approach, which is ... -
Diagnosis of Wing Icing Through Lift and Drag Coefficient Change Detection for Small Unmanned Aircraft
Sørensen, Kim Lynge; Blanke, Mogens; Johansen, Tor Arne (Journal article, 2015)This paper address the issue of structural change, caused by ice accretion, on UAVs by utilising a Neyman Pearson (NP) based statistical change detection approach, for the identi cation of structural changes of xed wing ... -
Dimensionality Reduction and Target Detection in Hyperspectral Remote Sensing
Bakken, Sivert (Master thesis, 2018)The work presented here is originally motivated by the low transfer rate possible for earth orbiting small satellites. Through different methods for dimensionality reduction, the effects of such representation on data ... -
Dimensionality reduction of hyperspectral images using an ICA-based stochastic second-order optimization algorithm
Lupu, Daniela; Necoara, Ion; Ionescu, Tudor C.; Ghinea, L M; Garrett, Joseph Landon; Johansen, Tor Arne (Chapter, 2023)Hyperspectral imaging is one of the advanced remote sensing techniques whose goal is to obtain the spectrum for each pixel in the image of a scene, with the purpose of finding objects, identifying materials or detecting ... -
Direct georeferencing for Hyperspectral Imaging of ocean surface
Hasler, Oliver Kevin; Løvås, Håvard Snefjellå; Bryne, Torleiv Håland; Johansen, Tor Arne (Peer reviewed; Journal article, 2023)This paper presents a low-cost, low-weight setup for aerial imaging spectroscopy and an effective methodology for direct georeferencing onto the sea surface. The algorithm and the miniaturized payload described in this ... -
Direct Yaw Moment, Traction and Power Limit Control of a Four Wheel Independent Drive Electric (4WID-EV) Formula Student Race Car
Omholt, Bjørn William (Master thesis, 2016)This master's thesis describes the development, implementation and testing of a suite of control systems consisting of torque vectoring, traction control and power limit control for a Formula style race car using four ... -
Discrete-Time Backstepping Design Applied to Position Tracking Control of an Electro-Pneumatic Clutch Actuator
Isaksen, Trond Willi (Master thesis, 2007)This thesis investigates different methods of backstepping controller design for an electro-pneumatic clutch actuator used in heavy duty trucks. The first part of the thesis is a literature study, where the subject is ... -
Distributed control architecture for real-time model predictive control for system-level harmonic mitigation in power systems
Skjong, Espen; Johansen, Tor Arne; Molinas Cabrera, Maria Marta (Journal article; Peer reviewed, 2019)It can be challenging to design and implement Model Predictive Control (MPC) schemes in systems with fast dynamics. As MPCs often introduce high computational loads, it can be hard to assure real-time properties required ... -
Distributed Model Predictive Control of Interconnected Nonlinear Systems by Dynamic Dual Decomposition
Grancharova, Alexandra; Johansen, Tor Arne (Chapter, 2014)A suboptimal approach to distributed Nonlinear Model Predictive Control (NMPC) for systems consisting of nonlinear subsystems with nonlinearly coupled dynamics subject to both state and input constraints is proposed. The ... -
Distributed Nonlinear Model Predictive Control by Sequential Linearization and Accelerated Gradient Method
Grancharova, Alexandra; Johansen, Tor Arne; Petrova, Valeria (Journal article; Peer reviewed, 2016)A suboptimal approach to distributed NMPC for nonlinear interconnected systems subject to constraints is proposed. The objective is to develop a computationally efficient approach. The suggested method is based on a ... -
Distributed Quasi-Nonlinear Model Predictive Control with Contractive Constraint
Grancharova, Alexandra Ivanova; Johansen, Tor Arne (Journal article; Peer reviewed, 2018)An approach to low complexity distributed MPC of nonlinear interconnected systems with coupled dynamics subject to both state and input constraints is proposed. It is based on the idea of introducing a contractive constraint ... -
DNN-based anomaly prediction for the uncertainty in visual SLAM
Bosdelekidis, Vasileios; Johansen, Tor Arne; Sokolova, Nadezda (Chapter, 2023)The method described in this paper proposes a supervised Deep Neural Network (DNN) approach for the prediction of anomalies in camera-based navigation. The method is inspired by the unsolved issues of Integrity Monitors ... -
Do it yourself hyperspectral imager for handheld to airborne operations
Sigernes, Fred; Syrjäsuo, Mikko; Storvold, Rune; Fortuna, João; Grøtte, Mariusz Eivind Santora; Johansen, Tor Arne (Journal article; Peer reviewed, 2018)This study describes rapid prototype construction of small and lightweight push broom Hyper Spectral Imagers (HSI). The dispersive element housings are printed by a thermoplastic 3D printer combined with S-mount optical ...