Flexible spacestructure control via moving-bank multiple model algorithms

Author

Gustafson, John A. ; Maybeck, Peter S.

Author_Institution

Dept. of Electr. & Comput. Eng., Wright Res. & Dev. Center, Wright-Patterson AFB, OH, USA

Volume

30

Issue

3

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

750

Lastpage

757

Abstract

The development and performance of moving-bank multiple model adaptive control (MMAC) algorithms for quelling vibrations induced in the SPICE 2 space structure are presented. The structure consists of a large platform and a smaller platform connected by three legs in a tripod fashion. Deviations of the line-of-sight (LOS) vector from the center of the large platform to the center of the smaller platform are used for LQG controller performance evaluation. The parameter estimator implements the maximum entropy with identity covariance (ME/I) algorithm; the moving-bank logic employs parameter position monitoring; the controller uses the modified MMAC method. Whereas parameter variations of two percent caused instabilities in the single filter/controller design, the MMAC algorithm provides an excellent method to estimate a wide range of parameter variations and to quell oscillations in the structure

Keywords

Kalman filters; adaptive control; aerospace computer control; aerospace computing; entropy; filtering and prediction theory; oscillations; parameter estimation; performance evaluation; MMAC algorithm; SPICE 2 space structure; adaptive control algorithms; flexible spacestructure control; identity covariance algorithm; line-of-sight vector; maximum entropy; modified MMAC method; moving-bank logic; moving-bank multiple model algorithms; oscillations; parameter estimator; parameter position monitoring; parameter variations; quelling vibrations; Adaptive control; Algorithm design and analysis; Condition monitoring; Entropy; Filters; Leg; Logic; Parameter estimation; SPICE; Vibration control;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.303744

Filename

303744