1999 Volume 35 Issue 7 Pages 934-942
High-accuracy track keeping and fixed position keeping have come to be demanded with ships having special duties such as cable laying ships, ocean research ships and bridge construction ships for improving the acccuracy and efficiency of works on ships. Under these circumstances, auxiliary maneuvering measures such as bow thruster and stern thruster have come to be attached to improve ships' safety and reduce crew's labor.
This paper presents a design method of track-keepig control system used by the optimal regulator theory. Its practicality has been verified by field tests in a cable laying ship.