A novel adaptive filtering technique is described for a class of systems with unknown
disturbances. The estimator includes both a self-tuning filter and a Kalman filter. The state …

Recent dynamic positioning systems have involved the use of a Kalman filter, in a state
estimate feedback control scheme, based upon the separation principle of stochastic optimal …

The position-control systems for dynamically positioned vessels include wave filters to
remove the wave motion signals. These ensure that the sytem only responds to low …

YNAMIC positioning systems primarily for drilling vessels and platforms and for support
vessels in the offshore oil industry have been manufactured since the early 1960's. In the …

Extended Kalman filters are here modified for coordinate estimation of a stationary object
using bearing measurements taken from a moving platform. The modifications improve …

This paper describes computer-based, dynamic positioning system for floating vessels. The
system is based on a detailed mathematical model of vessel motion in response to forces …

In this article, we have described the main components of a ship motion-control system and
two particular motion-control problems that require wave filtering, namely, dynamic …

The design of dynamic ship positioning control systems and their associated wave filters is
considered. The control problems and the basic components in the system are discussed …

In this paper we compare the performance of the extended Kalman filter (EKF) with that of a
proposed filter called modified extended Kalman filter (MEKF), in terms of the actual state …

This paper describes a computer-based, dynamic positioning system for floating vessels.
The system is based on a detailed mathematical model of vessel motion in response to …