Blar i NTNU Open på forfatter "Vik, Bjørnar"

Viser treff 1-8 av 8

    • Data-Based Modelling of Ships for Motion Prediction and Control Allocation 

      Skulstad, Robert (Doctoral theses at NTNU;2021:383, Doctoral thesis, 2021)
      Vessels operating on the surface of the ocean are exposed to an array of disturbances. These may come in terms of environmental disturbances, but may also come from signal loss. Modelling the behaviour of ships using ...

    • Dead Reckoning of Dynamically Positioned Ships: Using an Efficient Recurrent Neural Network 

      Skulstad, Robert; Li, Guoyuan; Fossen, Thor I.; Vik, Bjørnar; Zhang, Houxiang (Journal article; Peer reviewed, 2019)
      When a ship experiences a loss of position reference systems, its navigation system typically enters a mode known as dead reckoning (DR) to maintain an estimate of its position. Commercial systems perform this task using ...

    • GPS Guided R/C Car: The Local Bug Test Platform 

      Wenstad, Peder (Master thesis, 2010)
      This thesis is a part of the Local Hawk student project where the overall goal is to develop a Autonomous Unmanned Aerial Vehicle (AUAV). The project was initiated by Kongsberg Defence Systems (KDS) and is developed in ...

    • A Hybrid Approach to Motion Prediction for Ship Docking— Integration of a Neural Network Model into the Ship Dynamic Model 

      Skulstad, Robert; Li, Guoyuan; Fossen, Thor I.; Vik, Bjørnar; Zhang, Houxiang (Peer reviewed; Journal article, 2020)
      While automatic controllers are frequently used during transit operations and low-speed maneuvering of ships, ship operators typically perform docking maneuvers. This task is more or less challenging depending on factors ...

    • Inertial Navigation aided by Ultra-Wideband Ranging for Ship Docking and Harbor Maneuvering 

      Helgesen, Håkon Hagen; Fuglestad, t; Cisek, Krzysztof Piotr; Vik, Bjørnar; Kjerstad, Øivind Kåre; Johansen, Tor Arne (Peer reviewed; Journal article, 2022)
      This article presents an inertial navigation system aided by local ranging measurements derived from an ultra-wideband system. The system consists of one onboard tag and several onshore anchors. It is motivated by the need ...

    • Open Simulation Platform – An Open-Source Project for Maritime System Co-Simulation 

      Smogeli, Øyvind Rasmussen; Ludvigsen, Kristine Bruun; Jamt, Levi; Vik, Bjørnar; Nordahl, Håvard; Kyllingstad, Lars Tandle; Yum, Kevin Koosup; Zhang, Houxiang (Chapter, 2020)
      The Open Simulation Platform (OSP) is an open-source industry initiative for co-simulation of maritime equipment, systems and entire ships. With steadily increasing complexity due to the increasing use of software in ship ...

    • Quay Contact Detection for Ships using Motion Sensors and Machine Learning 

      Helgesen, Håkon Hagen; Kristiansen, K S; Vik, Bjørnar; Johansen, Tor Arne (Peer reviewed; Journal article, 2022)
      Detecting when and where contact with the quay appears is an important ability for ships undergoing a docking maneuver. The motion of the quay, environmental forces, and hydrodynamic effects caused by the interaction between ...

    • Underwater Navigation of AUVs 

      Haugedal, Andreas (Master thesis, 2010)
      Designing and developing an autonomous underwater vehicle (AUV) that is capable of performing a diverse set of operations is challenging in many ways, and requires broad insight into many fields of research. This paper ...