Blar i Institutt for teknisk kybernetikk på forfatter "Langer, Dennis David"

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    • Accuracy of a slew maneuver for the HYPSO-1 hyperspectral imaging satellite — in-orbit results 

      Kristiansen, Bjørn Andreas; Langer, Dennis David; Garrett, Joseph Landon; Berg, Simen; Gravdahl, Jan Tommy; Johansen, Tor Arne (Peer reviewed; Journal article, 2023)
      In this paper, the accuracy of a slew maneuver performed by the HYPSO-1 satellite is analysed based on the data received during the satellite’s first months in orbit. The slew maneuver, during which the satellite turns ...

    • HYPSO-1 CubeSat: First Images and In-Orbit Characterization 

      Bakken, Sivert; Henriksen, Marie Bøe; Birkeland, Roger; Langer, Dennis David; Oudijk, Adriënne Esmeralda; Berg, Simen; Pursley, Yeshi; Garrett, Joseph Landon; Gran-Jansen, Fredrik; Honoré-Livermore, Evelyn; Grøtte, Mariusz Eivind Santora; Kristiansen, Bjørn Andreas; Orlandic, Milica; Gader, Paul; Sørensen, Asgeir Johan; Sigernes, Fred; Johnsen, Geir; Johansen, Tor Arne (Peer reviewed; Journal article, 2023)
      The HYPSO-1 satellite, a 6U CubeSat carrying a hyperspectral imager, was launched on 13 January 2022, with the Goal of imaging ocean color in support of marine research. This article describes the development and current ...

    • 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 ...

    • Method for consistent along-track sharpness in a push-broom imaging system 

      Langer, Dennis David; Johansen, Tor Arne; Sørensen, Asgeir Johan (Journal article; Peer reviewed, 2023)
      The along track spatial resolution in push broom imaging systems depends on platform parameters and imaging settings. This paper present a method for achieving a consistent spatial resolution for varying exposure times. ...

    • 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)

    • Onboard Hyperspectral Classification Enables Georeferencing 

      Langer, Dennis David; Garrett, Joseph Landon; Birkeland, Roger; Berg, Simen; Orlandic, Milica (Journal article; Peer reviewed, 2023)
      The Norwegian University of Science and Technology (NTNU) has been building a system composed of multiple remote sensing agents for ocean observations. NTNU launched the first HYPerspectral Smallsat for Ocean observation ...

    • Robust and Reconfigurable On-Board Processing for a Hyperspectral Imaging Small Satellite 

      Langer, Dennis David; Orlandic, Milica; Bakken, Sivert; Birkeland, Roger; Garrett, Joseph Landon; Johansen, Tor Arne; Sørensen, Asgeir Johan (Peer reviewed; Journal article, 2023)
      Hyperspectral imaging is a powerful remote sensing technology, but its use in space is limited by the large volume of data it produces, which leads to a downlink bottleneck. Therefore, most payloads to date have been ...

    • Spatial Resolution Enhancement of Hyperspectral Images from Miniaturized Sensors 

      Bakken, Sivert; Langer, Dennis David; Garrett, Joseph Landon; Le Moan, Steven Yves; Johansen, Tor Arne (Peer reviewed; Journal article, 2023)
      Here we describe and mitigate issues of optical aberrations related to wavelength-dependent blur caused by miniaturization in hyperspectral pushbroom image sensors, which degrade spatial resolution and limit their usefulness. ...