• Attitude Estimation by Multiplicative eXogenous Kalman Filter 

      Stovner, Bård Nagy; Johansen, Tor Arne; Fossen, Thor I.; Schjølberg, Ingrid (Journal article, 2018)
      This paper presents a novel attitude estimator called the multiplicative exogenous Kalman filter. The estimator inherits the stability properties of a nonlinear observer and the near-optimal steady-state performance of the ...
    • Hybrid controller concept for dynamic positioning of marine vessels with experimental results 

      Brodtkorb, Astrid H.; Værnø, Svenn Are Tutturen; Teel, Andrew R.; Sørensen, Asgeir Johan; Skjetne, Roger (Journal article; Peer reviewed, 2018)
      The next generation marine control systems will, as a step towards increased autonomy, have more automatic functionality in order to cope with a set of complex operations in unknown, challenging and varying environments ...