Browsing NTNU Open by Author "Mathisen, Siri Gulaker"
Now showing items 1-4 of 4
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Autonomous Aerial Recovery: Fixed-wing UAV Ballistic Airdrop and Deep-Stall Landing
Mathisen, Siri Gulaker (Doctoral theses at NTNU;2020:61, Doctoral thesis, 2020)Although human beings don’t have wings, it is often very useful to fly. Or at least to use the air to transport objects. Sometimes these objects have to be delivered on normally unreachable places under difficult conditions, ... -
Autonomous ballistic airdrop of objects from a small fixed-wing unmanned aerial vehicle
Mathisen, Siri Gulaker; Leira, Frederik Stendahl; Helgesen, Håkon Hagen; Gryte, Kristoffer; Johansen, Tor Arne (Peer reviewed; Journal article, 2020)Autonomous airdrop is a useful basic operation for a fixed-wing unmanned aerial system. Being able to deliver an object to a known target position extends operational range without risking human lives, but is still limited ... -
Precision Deep-Stall Landing of Fixed-Wing UAVs using Nonlinear Model Predictive Control
Mathisen, Siri Gulaker; Gros, Sebastien; Johansen, Tor Arne (Peer reviewed; Journal article, 2020)To be able to recover a fixed-wing unmanned aerial vehicle (UAV) on a small space like a boat deck or a glade in the forest, a steep and precise descent is needed. One way to reduce the speed of the UAV during landing is ... -
Sustainable Flexibility Metrics : Measuring economic flexibility relative to environmental and structural sustainability
Mathisen, Siri Gulaker; Bjørnås, Kristine Lund; Panthi, Krishna Kanta; Aronsen, Tonje; Majaneva, Markus; Tselika, Kyriaki (Hydrocen rapport;, Research report, 2023)