• A flexible autonomous robotic observatory infrastructure for bentho-pelagic monitoring 

      Aguzzi, Jacopo; Albiez, Jan; Flögel, Sascha; Godø, Olav Rune; Grimsbø, Endre; Marini, Simone; Pfannkuche, Olaf; Rodriguez, Erik; Thomsen, Laurenz; Torkelsen, Terje; Valencia, Javier; López-vázquez, Vanesa; Wehde, Henning; Zhang, Guosong (Peer reviewed; Journal article, 2020)
      This paper presents the technological developments and the policy contexts for the project “Autonomous Robotic Sea-Floor Infrastructure for Bentho-Pelagic Monitoring” (ARIM). The development is based on the national ...
    • Acoustic Emission-Based Condition Monitoring and Remaining Useful Life Prediction of Hydraulic Cylinder Rod Seals 

      Pedersen, Jørgen. F.; Schlanbusch, Rune; Meyer, Thomas; Caspers, Leo. W.; Shanbhag, Vignesh Vishnudas (Peer reviewed; Journal article, 2021)
      The foremost reason for unscheduled maintenance of hydraulic cylinders in industry is caused by wear of the hydraulic seals. Therefore, condition monitoring and subsequent estimation of remaining useful life (RUL) methods ...
    • Autonomous Surface and Underwater Vehicles as Effective Ecosystem Monitoring and Research Platforms in the Arctic—The Glider Project 

      Camus, Lionel; Andrade, Hector; Aniceto, Ana Sofia; Aune, Magnus; Bandara, Kanchana; Basedow, Sünnje Linnéa; Christensen, Kai Håkon; Cook, Jeremy; Daase, Malin; Dunlop, Katherine Mary; Falk-Petersen, Stig; fietzek, Peter; Fonnes, Gro; Ghaffari, Peygham; Gramvik, Geir; Graves, Inger; Hayes, Daniel; Langeland, Tom; Lura, Harald; Marin, Trond Kristiansen; Nøst, Ole Anders; Peddie, David; Pederick, Joel; Pedersen, Geir; Sperrevik, Ann Kristin; Sørensen, Kai; Tassara, Luca; Tjøstheim, Sigurd; Tverberg, Vigdis; Dahle, Salve (Journal article; Peer reviewed, 2021)
      Effective ocean management requires integrated and sustainable ocean observing systems enabling us to map and understand ecosystem properties and the effects of human activities. Autonomous subsurface and surface vehicles, ...
    • 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 (Peer reviewed; Journal article, 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 ...
    • Combined Thickness and Permittivity Measurement of Thin Layers with Open-Ended Coaxial Probes 

      Folgerø, Kjetil; Haukalid, Kjetil; Kocbach, Jan; Peterson, Andreas Soto (Peer reviewed; Journal article, 2019)
      This paper presents a method to simultaneously determine the thickness and permittivity of thin layers from multi-frequency reflection coefficient measurements using an open-ended coaxial probe. This is achieved by exploiting ...
    • Comprehensive Direct Georeferencing of Aerial Images for Unmanned Aerial Systems Applications 

      Correia, Carlos A. M.; Andrade, Fabio Augusto de Alcantara; Sivertsen, Agnar Holten; Guedes, Ihannah Pinto; Pinto, Milena Faria; Manhães, Aline Gesualdi; Haddad, Diego Barreto (Peer reviewed; Journal article, 2022)
      Optical image sensors are the most common remote sensing data acquisition devices present in Unmanned Aerial Systems (UAS). In this context, assigning a location in a geographic frame of reference to the acquired image is ...
    • Fuzzy Gain-Scheduling PID for UAV Position and Altitude Controllers 

      Melo, Aurelio G.; Andrade, Fabio Augusto de Alcantara; Guedes, Ihannah P.; Carvalho, Guilherme F.; Zachi, Alessandro R. L.; Pinto, Milena F. (Peer reviewed; Journal article, 2022)
      Unmanned aerial vehicle (UAV) applications have evolved to a wide range of fields in the last decade. One of the main challenges in autonomous tasks is the UAV stability during maneuvers. Thus, attitude and position control ...
    • A Review of Thermal Spectral Imaging Methods for Monitoring High-Temperature Molten Material Streams 

      Grujic, Katarina (Peer reviewed; Journal article, 2023)
      Real-time closed-loop control of metallurgical processes is still in its infancy, mostly based on simple models and limited sensor data and challenged by extreme temperature and harsh process conditions. Contact-free thermal ...
    • Spread Spectrum Modulation with Grassmannian Constellations for Mobile Multiple Access Underwater Acoustic Channels 

      Bernard, Christophe; Bouvet, Pierre-Jean; Tomasi, Beatrice (Journal article; Peer reviewed, 2022)
      The objective of this study is to evaluate Grassmannian constellations combined with a spread spectrum multiple access scheme for underwater acoustic mobile multiple access communication systems. These communication systems ...
    • A Survey on Distributed Fibre Optic Sensor Data Modelling Techniques and Machine Learning Algorithms for Multiphase Fluid Flow Estimation 

      Arief, Hasan Asyari; Wiktorski, Tomasz; Thomas, Peter (Peer reviewed; Journal article, 2021)
      Real-time monitoring of multiphase fluid flows with distributed fibre optic sensing has the potential to play a major role in industrial flow measurement applications. One such application is the optimization of hydrocarbon ...