Browsing NTNU Open by Author "Johansen, Tor Arne"
Now showing items 61-80 of 516
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Autonomous Landing of Fixed-Wing UAV in a Stationary Net - Path and Navigation System
Sørbø, Kjetil Hope (Master thesis, 2016)This thesis present a path and navigation system, used in a autonomous net landing system for a fixed wing Unmanned Aerial Vehicle (UAV). A landing path of a UAV can be constructed as a straight line path, but in order for ... -
Autonomous Landing of Fixed-Wing UAV in Net suspended by Multirotor UAVs - A Fixed-Wing Landing System
Nevstad, Sigurd Olav (Master thesis, 2016)This thesis presents an autonomous landing system designed for an fixed-wing unmanned aerial vehicle (UAV) to land in a net suspended by multirotor UAVs. Ordinary landing of an fixed-wing UAV usually involves landing on a ... -
Autonomous landing of Fixed-Wing UAV in net suspended by Multirotor UAVs - A Multirotor recovery system
Moe, Jostein Borgen (Master thesis, 2016)This thesis considers the recovery of a fixed-wing Unmanned Aerial Vehicle (UAV) in a net suspended by multirotor UAVs. Motivated by marine fixed-wing UAV operations from ships, where limited landing space and harsh weather ... -
Autonomous landing of multi-rotor UAV
Lasson, Øystein Reitstøen (Master thesis, 2018)A GPS and camera-based landing system for navigating a multirotor UAV from a set of arbitrary GPS coordinates to a floating platform has been proposed. The camera-based sub-system uses a target (a specific geometrical ... -
Autonomous Machinery Management for Supervisory Risk Control Using Particle Swarm Optimization
Blindheim, Simon André Johnsen; Rokseth, Børge; Johansen, Tor Arne (Peer reviewed; Journal article, 2023)Safe navigation for maritime autonomous surface ships (MASS) is a challenging task, and generally highly dependent on effective collaboration between multiple sub-systems in environments with various levels of uncertainty. ... -
Autonomous Maritime Collision Avoidance: Field verification of Autonomous Surface Vehicle Behavior in Challenging Scenarios
Kufoalor, D. Kwame Minde; Johansen, Tor Arne; Brekke, Edmund Førland; Hepsø, Arild; Trnka, Kenan (Journal article; Peer reviewed, 2019)We present results from sea trials for an autonomous surface vehicle (ASV) equipped with a collision avoidance system based on model predictive control (MPC). The sea trials were performed in the North Sea as part of an ... -
Autonomous recovery of a Fixed-wing UAV Using a Line Suspended Between Two Multirotor UAVs
Bornebusch, Mads Friis; Johansen, Tor Arne (Peer reviewed; Journal article, 2020)This article presents an autonomous recovery system for fixed wing UAVs which is using a line suspended between two multirotor UAVs to catch a line with a hook hanging from a fixedwing UAV. This method of recovery is ... -
Autonomous recovery of a fixed-wing UAV using a net suspended by two multirotor UAVs
Klausen, Kristian; Fossen, Thor I.; Johansen, Tor Arne (Journal article; Peer reviewed, 2018)This article presents a novel recovery method for fixed‐wing unmanned aerial vehicles (UAVs), aimed at enabling operations from marine vessels. Instead of using the conventional method of using a fixed net on the ship deck, ... -
Autonomous search and tracking of objects using model predictive control of unmanned aerial vehicle and gimbal: Hardware-in-the-loop simulation of payload and avionics
Skjong, Espen; Nundal, Stian Aa.; Leira, Frederik Stendahl; Johansen, Tor Arne (Chapter, 2015)This paper describes the design of model predictive control (MPC) for an unmanned aerial vehicle (UAV) used to track objects of interest identified by a real-time camera vision (CV) module in a search and track (SAT) ... -
Autonomous ships are on the horizon: here’s what we need to know
Negenborn, Rudy; Goerlandt, Floris; Johansen, Tor Arne; Slaets, JP; Valdez Banda, O. A; Vanelslander, Thierry; Ventikos, Nikolaos P. (Journal article; Peer reviewed, 2023) -
Autonomous UAV Navigation Based on Fiducial Markers
Asp, Aleksander Roterud (Master thesis, 2020)Droner vokser raskt i popularitet for å gjennomføre oppdrag i miljø hvor det er problematisk for mennesker å utføre oppgaver manuelt. De utmerker seg med hensyn til både sikkerhet og effektivitet, men nøyaktigheten i ... -
Autonomous UAV surveillance of a ship’s path with MPC for Maritime Situational Awareness
Andrade, Fabio; Johansen, Tor Arne; Storvold, Rune (Chapter; Peer reviewed, 2017)Maritime Situational Awareness is crucial in maritime operations to identify threats and to deal with them as soon as possible. These threats can be pirates in shipping operations, icebergs when sailing in the northern sea ... -
Autonomous unmanned aerial vehicles in search and rescue missions using real-time cooperative model predictive control
de Alcantara Andrade, Fabio Augusto; Hovenburg, Anthony Reinier; Netto de Lima, Luciano; Dahlin Rodin, Christopher; Johansen, Tor Arne; Storvold, Rune; Moraes Correia, Carlos Alberto; Barreto Haddad, Diego (Journal article; Peer reviewed, 2019)Unmanned Aerial Vehicles (UAVs) have recently been used in a wide variety of applications due to their versatility, reduced cost, rapid deployment, among other advantages. Search and Rescue (SAR) is one of the most prominent ... -
Autonomous Unmanned Aerial Vehicles in Search and Rescue Missions Using Real-Time Cooperative Model Predictive Control
Andrade, Fabio; Hovenburg, Anthony Reinier; de Lima, L. N.; Rodin, Christopher D; Johansen, Tor Arne; Storvold, Rune; Correia, Carlos; Haddad, Diego (Journal article; Peer reviewed, 2019)Unmanned Aerial Vehicles (UAVs) have recently been used in a wide variety of applications due to their versatility, reduced cost, rapid deployment, among other advantages. Search and Rescue (SAR) is one of the most prominent ... -
Averaging Level Control of a Separator using Gain Scheduling
Halvorsrød, Sverre Oliver (Master thesis, 2007)In mature production wells slugging is, or can be, a major challenge when it comes totuning of the first separator control loops. The objectives of the tuning are to minimizethe variation of the outflow, whilst at the same ... -
Battery power smoothing control in a marine electric power plant using nonlinear model predictive control
Bø, Torstein Ingebrigtsen; Johansen, Tor Arne (Journal article; Peer reviewed, 2016)This brief presents a power variation smoothing method using batteries on a weak ship grid. For some marine vessels, power fluctuations on the ac grid are large. This results in the large variations in the electrical ... -
A Bayesian Approach to Risk-Based Autonomy, with Applications to Contact-Based Drone Inspections
Rothmund, Sverre Velten; Thieme, Christoph Alexander; Utne, Ingrid Bouwer; Johansen, Tor Arne (Journal article; Peer reviewed, 2023)Enabling higher levels of autonomy while ensuring safety requires an increased ability to identify and handle internal faults and unforeseen changes in the environment. This article presents an approach to improve this ... -
Block factorization of step response model predictive control problems
Kufoalor, D. Kwame Minde; Frison, Gianluca; Imsland, Lars Struen; Johansen, Tor Arne; Jørgensen, JB (Journal article; Peer reviewed, 2017)By introducing a stage-wise prediction formulation that enables the use of highly efficient quadratic programming (QP) solution methods, this paper expands the computational toolbox for solving step response MPC problems. ... -
Campaign For Hyperspectral Data Validation In North Atlantic Coastal Waters
Oudijk, Esmée; Hasler, Oliver Kevin; Overaas, H; Marty, Sabine; Williamson, David; Svendsen, T; Berg, Simen; Birkeland, Roger; Halvorsen, D; Bakken, S; Henriksen, Marie Bøe; Alver, Morten; Johnsen, Geir; Johansen, Tor Arne; Stahl, Annette; Kvaløy, Pål; Dallolio, Alberto; Majaneva, Sanna; Fragoso, Glaucia Moreira; Garrett, Joseph (Peer reviewed; Journal article, 2022)The high photosynthetic productivity of the Mausund bank on the coast of mid-Norway has given the area important economic and ecologic value. Monitoring chlorophyll-a (chl-a) production can assist in managing the local ... -
Carbon Nanomaterial-Based Wing Temperature Control System for In-Flight Anti-Icing and De-Icing of Unmanned Aerial Vehicles
Sørensen, Kim Lynge; Strand Helland, Andreas; Johansen, Tor Arne (Journal article, 2015-03)Structural changes due to ice accretion are common causes for unmanned aerial vehicle incidents in Arctic regions. For fixed wing unmanned aerial vehicles (UAVs) the leading edge of airfoil surfaces is one of the primary ...