“A globally stable autopilot with wave filter using only yaw angle measurements”
Authors: Trygve Lauvdal and Thor I. Fossen,Affiliation: NTNU, Department of Engineering Cybernetics
Reference: 1996, Vol 17, No 2, pp. 107-119.
Keywords: Global stability, adaptive ship autopilot, output feedback, notch filtering, integral action, velocity observer
Abstract: A stable minimum phase transfer function from rudder angle to yaw angle is used to design a globally stable adaptive ship autopilot. First-order wave disturbances in yaw are filtered by applying a notch filter. Integral action is introduced by using a reference model technique. Global stability is proven for the total system which include the yaw rate observer, the parameter update law, the feedback controller, the notch filter and the integral part of the controller. The simulation results showed that the performance is excellent, even with no a priori knowledge of the ship parameters.
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DOI: 10.4173/mic.1996.2.4DOI forward links to this article:
| [1] Trygve Lauvdal and Thor I. Fossen (1998), doi:10.1002/(SICI)1099-1115(199812)12:8<605::AID-ACS516>3.0.CO;2-1 |
[1] BALCHEN, J.G., JENSSEN, N.A. SÆLID, S. (1976). Dynamic positioning using Kalman filtering and optimal control theory, In: IFAC/IFIP Symposium on Automation in OffShore Oil Field Operation. Holland, Amsterdam. pp. 183-186.
[2] BALCHEN, J.G., JENSSEN, N.A. SÆLID, S. (1980). Dynamic positioning of floating vessels based on Kalman filtering and optimal control, In: Proceedings of the 19th IEEE Conference on Decision and Control. New York, NY. pp. 852-864.
[3] BALCHEN, J.G., JENSSEN, N.A., MATHISEN, E. SÆLID, S. (1980). Dynamic positioning system based on Kalman filtering and optimal control, Modeling, Identification and Control, 1, 135-163 doi:10.4173/mic.1980.3.1
[4] BODSON, M. (1986). Stability, Convergence and Robustness of Adaptive Systems, PhD thesis. University of California, Berkeley.
[5] BODSON, M. SASTRY, S. (1987). Input error versus output error model reference adaptive control, In: Proceedings of the 1987 American Control Conference. Minneapolis, USA, pp. 224-229.
[6] FOSSEN, T.I. (1994). Guidance and Control of Ocean Vehicles, John Wiley and Sons Ltd.
[7] GRIMBLE, M.J., PATTON, R.J., WISE, D.A. (1980). The design of dynamic positioning control systems using stochastic optimal control theory, Optimal Control Applications and Methods, 1, 167-202 doi:10.1002/oca.4660010207
[8] GRIMBLE, M.J., PATTON, R.J. WISE, D.A. (1980). Use of Kalman filtering techniques in dynamic ship positioning systems, IEE Proceedings, D, 127,93-102.
[9] HOLZHÜTER, T. STRAUCH, H. (1987). A commercial adaptive autopilot for ships: design and experimental experience, In: Proceedings of the 10th IFAC World Congress. July 27-31, Munich, Germany. pp. 226-230.
[10] NOMOTO, K., TAGUCHI, T., HONDA, K. HIRANO, S. (1957). On the steering qualities of ships, Technical report. International Shipbuilding Progress, Vol. 4.
[11] REID, R.E., TUGCU, A.K., MEARS, B.C. (1984). The use of wave filter design in Kalman filter state estimation of the automatic steering problem of a tanker in a seaway, IEEE Transactions on Automatic Control. 29,577-584 doi:10.1109/TAC.1984.1103591
[12] SÆLID, S. JENSSEN, N. A. (1983). Adaptive ship autopilot with wave filter, Modeling, Identification and Control, 4,33-46 doi:10.4173/mic.1983.1.3
[13] SASTRY, S. BODSON, M. (1989). Adaptive Control, Prentice-Hall Int. Editions. New Jersey.
BibTeX:
@article{MIC-1996-2-4,
title={{A globally stable autopilot with wave filter using only yaw angle measurements}},
author={Lauvdal, Trygve and Fossen, Thor I.},
journal={Modeling, Identification and Control},
volume={17},
number={2},
pages={107--119},
year={1996},
doi={10.4173/mic.1996.2.4},
publisher={Norwegian Society of Automatic Control}
};