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norskArtikler, rapporter og annet (elektroteknologi)
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Estimation of upward radiances and reflectances at the surface of the sea from above-surface measurements
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-10-02)During 4 field days in the years 2009–2011, 22 data sets of measurements were collected in the inner Oslofjord, Norway. The data consist of recordings of spectral nadir radiances in air and water as well as spectral downward ... -
Underactuated Waypoint Tracking of a Fixed-Wing UAV
(Journal article; Peer reviewed, 2013)In this paper a new method of performing waypoint tracking is shown for underactuated fixed-wing UAVs. The position error can be mapped onto the desired axis using a desired rotation matrix, while the velocity error can ... -
Underactuated Control of Quadrotors with Collision Avoidance
(Journal article; Peer reviewed, 2013)In this paper a saturated controller is derived that solves the translational control problem for underactuated quadrotors. The controller is applied to multiple quadrotors during a formation reconfiguration where the ... -
Real-Time Particle Tracking using a Formation of UAVs
(Journal article; Peer reviewed, 2013)In this paper the problem of real-time particle tracking is studied. Using sensor measurements, a formation of UAVs autonomously find the closest point with high particle density where they enter a holding pattern. After ... -
Quaternion guidance and control of quadrotor
(Peer reviewed; Conference object; Chapter, 2017-07-27)This paper addresses the problem of trajectory tracking for underactuated quadrotors. A quaternion based guidance law is proposed which feeds into an attitude control system based on a PD+ control law. The desired attitude ... -
Path-following in three dimensions using quaternions for a fixed-wing UAV
(Peer reviewed; Conference object; Chapter, 2017-08-08)This paper presents a three dimensional guidance strategy for fixed-wing UAVs using quaternions. The algorithm is based on constructing two quaternions, one which makes the UAV fly towards the path and one that makes the ... -
Attitude Determination and Control System for Satellites in Elliptical Orbits - a Complete Solution
(Peer reviewed; Conference object; Chapter, 2017-08-08)This paper presents a complete solution to the problem of attitude determination and control for satellites in elliptical orbits. Specifically, it shows how to create the orbital mechanics, account for perturbing gravity ... -
Autonomous Inspection of the International Space Station
(Peer reviewed; Conference object; Chapter, 2017-09-18)This paper presents a solution to autonomous inspection of the international space station using a rigid spacecraft. Specifically, the paper presents the orbital mechanics, formation dynamics as well as rotational dynamics ... -
Thyristor based short circuit current injection in isolated grids
(Peer reviewed; Chapter, 2017-02-16)This paper proposes a thyristor based short circuit current injector for providing short circuit current in isolated and weak grids, where sufficient fault current to trigger circuit breakers may not be available. This ... -
Quadrotor attitude estimation using adaptive fading multiplicative EKF
(Peer reviewed; Conference object, 2017-07-03)This paper presents the implementation of an adaptive fading multiplicative extended Kalman filter (AFMEKF), applied to the problem of attitude estimation in the context of quadrotors. The extended Kalman filter is adapted ... -
Smarte nett - Framtidas fleksible energisystem
(Conference object, 2016) -
Smarte nett - Framtidas fleksible energisystem
(Konferansebidrag, 2016-03-16) -
Smarte løsninger for integrering av fornybar energi
(Konferansebidrag, 2017) -
Smart grid solutions for integration of renewable energy in remote communities
(Conference object, 2017) -
Advanced Model Predictive Control Algorithm for Inverters as a Low-cost Solution in ZynQ
(Conference object, 2016) -
Experimental study of relative permittivity of atmospheric ice
(Journal article; Peer reviewed, 2013-01-01)Atmospheric icing on onshore and offshore structures is problematic, if we don’t detect and remove it. Despite of various ice detection techniques, capacitor based ice sensing technique is interesting ... -
Subsumption architecture applied to flight control using composite rotations
(Peer reviewed; Tidsskriftartikkel; Journal article, 2016-03-19)In this paper the subsumption theory is applied to flight control through composite rotations where multiple tasks can be defined as simple rotations. The tasks can then be arranged as a hierarchy, where the primary task ... -
A Decoupled Approach for Flight Control
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016)A decoupling method for flight control is presented that greatly simplifies the controller design. By approximating the higher order derivatives of the angle of attack and sideslip, it enables a rotation controller and a ... -
Ubemannede flaksende mikrofly
(Journal article, 2013) -
Cascade-Based Controlled Attitude Synchronization and Tracking of Spacecraft in Leader-Follower Formation
(Journal article; Peer reviewed, 2011)
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