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

Effects of wavefront sampling speed on the performance of adaptive astronomical telescopes

Not Accessible

Your library or personal account may give you access

Abstract

Adaptive imaging systems have been developed to compensate for distortions introduced by atmospheric turbulence. Their performance is limited by the wavefront sampling rate which is constrained by the wavefront sensor processing time. This paper explores the degradation of system performance caused by limitations in the wavefront sampling rate. Errors introduced by finite image observation times are also examined. For bright images, a very short observation time per sampling period is shown to yield high system resolution. For the case of very faint images, continuous observation results in the best signal-to-noise ratio. Adaptively correcting a 4-m telescope is shown to improve the detection threshold by nearly three visual magnitudes.

© 1991 Optical Society of America

Full Article  |  PDF Article
More Like This
Adaptive-optics performance of Antarctic telescopes

Jon S. Lawrence
Appl. Opt. 43(6) 1435-1449 (2004)

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 (8)

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 (45)

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