Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Wind-induced deformations in a segmented mirror

Not Accessible

Your library or personal account may give you access

Abstract

A Zernike expansion of wind-induced deformations in a segmented mirror is described. The wind model is a frozen turbulent field with a Kolmogorov spectrum for scales smaller than the outer scale and a flat spectrum for scales larger than the outer scale. The approach allows a mode-by-mode comparison of the wave-front error contributions from atmospheric phase distortions, wind-induced deformations, and the mirror control system noise. This is used to design a controller that minimizes the mirror surface errors by application of corrections based on edge sensor measurements and wave-front measurements on a guide star.

© 2002 Optical Society of America

Full Article  |  PDF Article
More Like This
Model of image degradation due to wind buffeting on an extremely large telescope

Stephen Padin and Warren Davison
Appl. Opt. 43(3) 592-600 (2004)

Measurement accuracy in control of segmented-mirror telescopes

Douglas G. MacMartin and Gary Chanan
Appl. Opt. 43(3) 608-615 (2004)

Design considerations for a highly segmented mirror

Stephen Padin
Appl. Opt. 42(16) 3305-3312 (2003)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (35)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved