Title :
Nonlinear estimation of misalignment errors in adaptive optics
Author :
Huang, Jim ; Castanon, David A.
Author_Institution :
Charles Stark Draper Lab. Inc., Cambridge, MA, USA
Abstract :
The performance of adaptive optics systems degrades rapidly in the presence of optical misalignment errors between deformable mirror and wavefront sensor. In order to compensate for this effect, it is necessary to estimate the misalignment error. In this paper, we present a model for misregistration estimation, and a nonlinear estimation algorithm for generating globally optimal estimates of misregistration errors. The performance of the algorithm is illustrated using an experimental adaptive optics system
Keywords :
adaptive systems; aberration; adaptive optics systems; deformable mirror; error estimation; misregistration errors; optical misalignment errors; wavefront sensor; Adaptive optics; Estimation error; Mirrors; Nonlinear optics; Optical distortion; Optical feedback; Optical filters; Optical refraction; Optical sensors; Sensor systems;
Conference_Titel :
Decision and Control, 1997., Proceedings of the 36th IEEE Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-4187-2
DOI :
10.1109/CDC.1997.650746
