• Fault-tolerant control allocation for overactuated nonlinear systems 

      Cristofaro, Andrea; Polycarpou, Marios M.; Johansen, Tor Arne (Journal article; Peer reviewed, 2017)
      This paper addresses the problem of fault-tolerant control allocation for input affine nonlinear systems. The proposed scheme is divided in three main tasks: fault detection and estimation using a nonlinear observer, fault ...
    • Feedback Linearization Control for Systems with Mismatched Uncertainties via Disturbance Observers 

      Kayacan, Erkan; Fossen, Thor I. (Peer reviewed; Journal article, 2018)
      This paper focuses on a novel feedback linearization control (FLC) law based on a self-learning disturbance observer (SLDO) to counteract mismatched uncertainties. The FLC based on BNDO (FLC-BNDO) demonstrates robust control ...
    • Trajectory tracking for underwater swimming manipulators using a super twisting algorithm 

      Borlaug, Ida-Louise Garmann; Gravdahl, Jan Tommy; Sverdrup-Thygeson, Jørgen; Pettersen, Kristin Ytterstad; Loria, Antonio (Journal article; Peer reviewed, 2018)
      The underwater swimming manipulator (USM) is a snake-like, multi-articulated, underwater robot that is equipped with thrusters. One of the main purposes of the USM is to act like an underwater floating base manipulator. ...