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Gain Scheduled Missile Control Using Robust Loop Shaping
Linköping University, Department of Electrical Engineering.
2002 (English)Independent thesis Basic level (professional degree)Student thesisAlternative title
Parameterstyrd missilstyrning med hjälp av robust kretsformning (Swedish)
Abstract [en]

Robust control design has become a major research area during the last twenty years and there are nowadays several robust design methods available. One example of such a method is the robust loop shaping method that was developed by K. Glover and D. C. MacFarlane in the late 1980s. The idea of this method is to use decentralized controller design to give the singular values of the loop gain a desired shape. This step is called Loop Shaping and it is followed by a Robust Stabilization procedure, which aims to give the closed loop system a maximum degree of stability margins. In this thesis, the robust loop shaping method is used to design a gain scheduled controller for a missile. The report consists of three parts, where the first part introduces the Robust Loop Shaping theory and a Gain Scheduling approach. The second part discusses the missile and its characteristics. In the third part a controller is designed and a short analysis of the closed loop system is performed. A scheduled controller is implemented in a nonlinear environment, in which performance and robustness are tested. Robust Loop Shaping is easy to use and simulations show that the resulting controller is able to cope with model perturbations without considerable loss in performance. The missile should be able to operate in a large speed interval. There, it is shown that a single controller does not stabilize the missile everywhere. The gain scheduled controller is however able to do so, which is shown by means of simulations.

Place, publisher, year, edition, pages
Institutionen för systemteknik , 2002. , 69 p.
LiTH-ISY-Ex, 3291
Keyword [en]
Reglerteknik, Missile Control, Robust Loop Shaping, Gain Scheduling
Keyword [sv]
National Category
Control Engineering
URN: urn:nbn:se:liu:diva-1529OAI: diva2:18853
Available from: 2003-01-13 Created: 2003-01-13

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