• A Tension-based Position Estimation Approach for Moored Marine Vessels 

      Ren, Zhengru; Skjetne, Roger; Kjerstad, Øivind Kåre (10th IFAC Conference on Manoeuvring and Control of Marine Craft;MCMC 2015, Journal article; Peer reviewed, 2015)
      This paper presents a novel idea on a tension-based localization approach as a redundancy measure to handle the situation when the position reference (posref) signals are not available or significant GNSS drifts occur, ...
    • Supervisory Control of Line Breakage for Thruster-Assisted Position Mooring System 

      Ren, Zhengru; Skjetne, Roger; Hassani, Vahid (Chapter, 2015)
      Thruster-assisted position mooring (TAPM) is an energy-efficient and reliable stationkeeping method for deep water structures. Mooring line breakage can significantly influence the control system, and ultimately reduce ...