Title :
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
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;
Conference_Titel :
System Theory, 1994., Proceedings of the 26th Southeastern Symposium on
Conference_Location :
Athens, OH
Print_ISBN :
0-8186-5320-5
DOI :
10.1109/SSST.1994.287854
