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

Bulk wind estimation and prediction for adaptive optics control systems

Not Accessible

Your library or personal account may give you access

Abstract

We present a wind-predictive controller for astronomical adaptive optics (AO) systems that is able to predict the motion of a single windblown layer in the presence of other, more slowly varying phase aberrations. This controller relies on fast, gradient-based optical flow estimation to identify the velocity of the translating layer and a recursive mean estimator to account for turbulence that varies on a time scale much slower than the operating speed of the AO loop. We derive the Cramer–Rao lower bound for the wind estimation problem and show that the proposed estimator is very close to achieving theoretical minimum-variance performance. We also present simulations using on-sky data that show significant Strehl increases from using this controller in realistic atmospheric conditions.

© 2011 Optical Society of America

Full Article  |  PDF Article
More Like This
Laboratory demonstration of the prediction of wind-blown turbulence by adaptive optics at 8  kHz with use of LQG control

Lisa A. Poyneer, S. Mark Ammons, Mike K. Kim, Brian Bauman, Jesse Terrel-Perez, Aaron J. Lemmer, and Jayke Nguyen
Appl. Opt. 62(8) 1871-1885 (2023)

Impact of time-variant turbulence behavior on prediction for adaptive optics systems

Maaike van Kooten, Niek Doelman, and Matthew Kenworthy
J. Opt. Soc. Am. A 36(5) 731-740 (2019)

Multi time-step wavefront reconstruction for tomographic adaptive-optics systems

Yoshito H. Ono, Masayuki Akiyama, Shin Oya, Olivier Lardiére, David R. Andersen, Carlos Correia, Kate Jackson, and Colin Bradley
J. Opt. Soc. Am. A 33(4) 726-740 (2016)

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 (10)

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

Equations (29)

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