PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
2006 | 16 | 2 | 197-207
Tytuł artykułu

Servo tracking of targets at sea

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
This paper details a proposal for the position control system of a two-axis ship-mounted tracker. Aspects of the non-linear dynamics governing Line-Of-Sight (LOS) errors between the tracker and the target are presented. It is shown that the regulation of LOS errors can be achieved by introducing a feed-forward term based on the target's velocity. This velocity is not measurable, and an estimator is required. Given that the tracking problem is non-linear, the classical separation principle does not hold, and cascading the estimator and regulator together may not lead to an optimal position control system. The 'LQAdaptive' system proposed here aims therefore to improve conformity to the separation principle. Simulation trials show that tracking is improved under the LQAdaptive system in comparison to a simple estimator-regulator structure.
Słowa kluczowe
Rocznik
Tom
16
Numer
2
Strony
197-207
Opis fizyczny
Daty
wydano
2006
otrzymano
2005-11-13
poprawiono
2006-01-22
Twórcy
autor
  • Department of Electronic, Electrical and Computer Engineering, School of Engineering, University of Birmingham, Birmingham B15 2TT, UK
  • Department of Electronic, Electrical and Computer Engineering, School of Engineering, University of Birmingham, Birmingham B15 2TT, UK
Bibliografia
  • Borrie J.A. (1992): Stochastic Systems for Engineers: Modelling, Estimation and Control. - New York: Prentice-Hall.
  • Brdyś M.A. and Littler J.J. (2002): Fuzzy logic gain scheduling for non-linear servo tracking. - Int. J. Appl. Math. Comput. Sci., Vol. 12, No. 2, pp. 209-219.
  • Ekstrand B. (2001): Tracking filters and models for seeker applications. - IEEE Trans. Aerosp. Electron. Syst., Vol. 37, No. 3, pp. 965-977.
  • Jaźwiński A.H. (1970): Stochastic Processes and Filtering Theory. - New York: Academic Press.
  • Kwakernaak H. and Sivan R. (1972): Linear Optimal Control Systems. - New York: Wiley.
  • Mayne D., Rawlings J.B., Rao C.V. and Scokaret P.O.M. (2000): Constrained model predictive control: Stability and optimality. - Automatica, Vol. 36, No. 6, pp. 789-814.
  • Singer R.A. (1970): Estimating optimal tracking filter performance for manned maneuvring targets. - IEEE Trans. Aerosp. Electron. Syst., Vol. 6, No. 2, pp. 473-483.
  • Soeterboek R. (1992): Predictive Control - A Unified Approach. - Hemel Hempstead: Prentice-Hall International.
  • Yang Z. (2002): Multiple-model tracking with fixed-lag smooting using imprecise information. - Ph.D. thesis, Department of Electronic, Electrical and Computer Engineering, The University of Birmingham, Birmingham.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.bwnjournal-article-amcv16i2p197bwm
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.