Blar i NTNU Open på forfatter "Hasler, Oliver Kevin"
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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 ... -
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 ... -
Hyperspectral remote sensing and navigation in coastal environments using UAVs
Hasler, Oliver Kevin (Doctoral theses at NTNU;2024:306, Doctoral thesis, 2024)Imaging spectroscopy, or hyperspectral imaging, is a remote sensing technology that allows a user to gather information about an observed object based on its spectral reflectance. Traditionally, this technology was reserved ... -
Lightweight UAV payload for image spectroscopy and atmospheric irradiance measurements
Hasler, Oliver Kevin; Winter, Adrian; Langer, Dennis David; Bryne, Torleiv Håland; Johansen, Tor Arne (Peer reviewed; Journal article, 2023)This paper presents a low-cost lightweight UAV payload for remote sensing purposes using a small imaging spectrometer made from COTS components. The novel design with an additional upward-facing spectrometer allows for ... -
Low-Cost Angle of Arrival-Based Auxiliary Navigation System for UAV using Signals of Opportunity
Winter, Adrian; Sokolova, Nadezda; Morrison, Aiden J; Hasler, Oliver Kevin; Johansen, Tor Arne (Peer reviewed; Journal article, 2023)Many modern devices rely on satellite navigation for reliable, precise and ubiquitous localization. While this enables technological advances that have been unthinkable a few decades ago, it also has clear implications on ... -
Monitoring Algal Blooms with Complementary Sensors on Multiple Spatial and Temporal Scales
Williamson, David Roddan; Moreira Fragoso, Glaucia; Majaneva, Sanna Kristiina; Dallolio, Alberto; Halvorsen, Daniel Ørnes; Hasler, Oliver Kevin; Oudijk, Adriënne Esmeralda; Langer, Dennis David; Johansen, Tor Arne; Johnsen, Geir; Stahl, Annette; Ludvigsen, Martin; Garrett, Joseph Landon (Peer reviewed; Journal article, 2023) -
Robust Phased Array Navigation in Reflective Prone Areas
Hasler, Oliver Kevin; Bryne, Torleiv Håland; Johansen, Tor Arne (Chapter, 2023)Navigation with a Phased Array Radio System (PARS) is prone to performance degradation due to radio wave reflections of the directed communication beam on reflective surfaces. This work presents a navigation algorithm, ...