Computer Science – Performance
Scientific paper
Mar 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jgcd...18..194b&link_type=abstract
Journal of Guidance, Control, and Dynamics (ISSN 0731-5090), vol. 18, no. 2, p. 194-199
Computer Science
Performance
Control Systems Design, Hubble Space Telescope, Pointing Control Systems, Satellite Control, Solar Arrays, Computerized Simulation, Covariance, H-Infinity Control, Linear Quadratic Gaussian Control, Mathematical Models, Spacecraft Performance
Scientific paper
Unexpected thermally induced disturbances originating in the solar arrays imposed deleterious effects on the pointing performance of the Hubble Space Telescope (HST). A NASA redesign of the onboard pointing control system (PCS) brought the performance back into specification during a majority of the orbit time. As a result of this controller redesign effort, a wealth of flight data was collected and control design simulation models enhanced. Under sponsorship of the NASA Controls/Structures Interaction Program at the Marshall Space Flight Center, a study was conducted to determine if performance improvements could be obtained when advanced modern control techniques under study in the program were applied to the HST PCS. Five modern control techniques were applied to the problem. Flight data and simulation models were provided to the research teams. The methods considered were reduced-order model-based control, linear-quadratic-Gaussian-based control, analytically and numerically derived Hinfinity control, covariance control, and dual-mode disturbance-accommodating control design. The performance of these designs was tested in a government-furnished nonlinear simulation of the HST. In general, some performance improvements over the NASA redesigned controller were seen in the simulation studies.
No associations
LandOfFree
Hubble space telescope pointing control system design improvement study results does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Hubble space telescope pointing control system design improvement study results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hubble space telescope pointing control system design improvement study results will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-844777