Todays model-based dynamic positioning (DP) systems require that the ship and thruster
dynamics are known with some accuracy in order to use linear quadratic optimal control …

Today's model-based dynamic positioning (DP) systems require that the ship and thruster
dynamics are known with some accuracy in order to use linear quadratic optimal control …

Various operations at sea, such as maintaining a constant ship position and direction,
require a complex control system. Under such conditions, the ship needs an efficient …

Accurately estimating the real-time low-frequency motion state of the dynamic positioning
(DP) ships under the time-varying environmental disturbances and effectively filtering out the …

A dynamic positioning (DP) system is used to maintain a ship on a specified position and at
a desired heading. A ship is exposed to the wind, currents and waves in the ocean. In order …

A novel adaptive unscented Kalman filter (AUKF) is presented and applied to ship dynamic
positioning (DP) system with model uncertainties of time-varying noise statistics, model …

We consider the techniques of on-line parameter identification for a simplified model of ship
dynamic. In the past two decades, there is an increase in the use of the extended Kalman …

This paper addresses a filtering problem that arises in the design of dynamic positioning
systems for ships and offshore rigs subjected to the influence of sea waves. The dynamic …

An improved Gaussian Filter (GF) is designed for nonlinear Dynamic Positioning (DP) ships
with cross-correlated colored noises and random measurements loss. For the actual …

An output feedback controller for dynamic positioning (DP) of marine surface vessels is
developed. The proposed algorithm has good performance during transients as well as …