Controller redesigns for the Hubble space telescope

Author

Glenn, Russell D. ; Frazier, W. Garth ; Irwin, R. Dennis ; Lawrence, Douglas A. ; Follett, Randolph F.

Author_Institution

Dept. of Electr. & Comput. Eng., Ohio Univ., Athens, OH, USA

fYear

1994

fDate

20-22 Mar 1994

Firstpage

347

Lastpage

351

Abstract

Application of multi-input, multi-output (MIMO) design techniques to the Hubble space telescope pointing control system (PCS) controller redesign problem is presented. Improved performance is sought by designing controllers with high, broad-band gain in the disturbance frequency ranges. Available PCS models are evaluated in terms of their suitability for design and simulation. A generic time-domain PCS simulation is presented. Controllers are designed using analytical H^∞ techniques and through a hybrid numerical/H^∞ approach utilizing numerical techniques to meet H^∞ type design specifications. The redesigns are compared to a flight tested controller via frequency response analysis and time-domain simulation

Keywords

aerospace control; aerospace instrumentation; aerospace simulation; artificial satellites; astronomical telescopes; attitude control; control system synthesis; controllers; frequency response; multivariable control systems; optimal control; time-domain analysis; Hubble space telescope; MIMO; broadband gain; controller redesign; design specifications; disturbance frequency ranges; flight tested controller; frequency response analysis; hybrid numerical/H^∞ approach; multi-input multioutput design; numerical techniques; pointing control system; time-domain simulation; Analytical models; Control systems; Frequency response; MIMO; Optical design; Performance gain; Personal communication networks; Telescopes; Testing; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

System Theory, 1994., Proceedings of the 26th Southeastern Symposium on

Conference_Location

Athens, OH

ISSN

0094-2898

Print_ISBN

0-8186-5320-5

Type

conf

DOI

10.1109/SSST.1994.287854

Filename

287854