publication . Preprint . Conference object . 2014

Woofer-tweeter deformable mirror control for closed-loop adaptive optics: theory and practice

Donald Gavel; Andrew Norton;
Open Access English
  • Published: 07 Aug 2014
Abstract
Deformable mirrors with very high order correction generally have smaller dynamic range of motion than what is required to correct seeing over large aperture telescopes. As a result, systems will need to have an architecture that employs two deformable mirrors in series, one for the low-order but large excursion parts of the wavefront and one for the finer and smaller excursion components. The closed-loop control challenge is to a) keep the overall system stable, b) avoid the two mirrors using control energy to cancel each other's correction, c) resolve actuator saturations stably, d) assure that on average the mirrors are each correcting their assigned region o...
Subjects
arXiv: Astrophysics::Instrumentation and Methods for Astrophysics
free text keywords: Astrophysics - Instrumentation and Methods for Astrophysics, Artificial intelligence, business.industry, business, Physics, Telescope, law.invention, law, Woofer, Adaptive optics, Deformable mirror, Wavefront, Optics, Computer vision, Active optics, Actuator, Aperture

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publication . Preprint . Conference object . 2014

Woofer-tweeter deformable mirror control for closed-loop adaptive optics: theory and practice

Donald Gavel; Andrew Norton;