Title :
A spatial non-dynamic LQG controller: Part I, application to adaptive optics
Author :
Wiberg, D.M. ; Max, C.E. ; Gavel, D.T.
Author_Institution :
Center for Adaptive Opt., California Univ., Santa Cruz, CA
Abstract :
The theory of a spatial non-dynamic LQG controller developed in Part II is applied to astronomical adaptive optics (AO). The AO control system is described and reduced to an exact finite dimensional model by projecting into observable and controllable subspaces. A dynamic optimal minimum variance controller is derived, using the estimated covariance of the residuals rather than assuming a Komolgorov structure function. This controller is compared with a non-dynamic optimal controller and with the usual null-seeking controller
Keywords :
adaptive optics; astronomical telescopes; linear quadratic control; multidimensional systems; AO control system; astronomical adaptive optics; dynamic optimal minimum variance controller; estimated covariance; exact finite dimensional model; observable controllable subspaces; spatial nondynamic LQG controller; Adaptive optics; Computer simulation; Control system synthesis; Control systems; Extraterrestrial measurements; Laboratories; Optical control; Optimal control; Telescopes; Vibration control;
Conference_Titel :
Decision and Control, 2004. CDC. 43rd IEEE Conference on
Print_ISBN :
0-7803-8682-5
DOI :
10.1109/CDC.2004.4607231