Vibrations in MagAO: resonance sources identification and first approaches for modeling and control

Javier Garcés; Sebastián Zúñiga; Laird Close; Jared Males; Katie Morzinski; Pedro Escárate; Mario Castro; José Marchioni; Diego Rojas

doi:10.1117/12.2232777

27 July 2016 Vibrations in MagAO: resonance sources identification and first approaches for modeling and control

Javier Garcés; Sebastián Zúñiga; Laird Close; Jared Males; Katie Morzinski; Pedro Escárate; Mario Castro; José Marchioni; Diego Rojas

Author Affiliations +

Proceedings Volume 9909, Adaptive Optics Systems V; 99093G (2016) https://doi.org/10.1117/12.2232777
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

The Magellan Telescope Adaptive Optics System (MagAO) is subject to resonance effects induced by elements within the system instrumentation, such as fans and cooling pumps. Normalized PSDs are obtained through frequency-based analysis of closed-loop on-sky data, detecting and measuring vibration effects. Subsequently, a space-state model for the AO loop is obtained, using a standard AO loop scheme with an integrator-based controller and including the vibration effects as disturbances. Finally, a new control alternative is proposed, focusing on residual phase variance minimization through the design and simulation of an optimal LQG control approach.

Citation Download Citation

Javier Garcés, Javier Garcés, Sebastián Zúñiga, Sebastián Zúñiga, Laird Close, Laird Close, Jared Males, Jared Males, Katie Morzinski, Katie Morzinski, Pedro Escárate, Pedro Escárate, Mario Castro, Mario Castro, José Marchioni, José Marchioni, Diego Rojas, Diego Rojas, } "Vibrations in MagAO: resonance sources identification and first approaches for modeling and control", Proc. SPIE 9909, Adaptive Optics Systems V, 99093G (27 July 2016); doi: 10.1117/12.2232777; https://doi.org/10.1117/12.2232777

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $14.40

Non-members: $18.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years