1 August 1990 Adaptive optics: interaction matrix measurements and real time control algorithms for the COME-ON project
Author Affiliations +
Proceedings Volume 1271, Adaptive Optics and Optical Structures; (1990); doi: 10.1117/12.20395
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands
Abstract
The objectives of the COME-ON project are to experiment a 19 actuator adaptive optics system planned to be used on a 4 m diameter telescope. This project has been worked out by 4 teams from: - Laserdot (Aerospatiale) - Office National d'Etudes et de Recherches Aerospatiales - Observatoire de Paris - European Southern Observatory (E.S.O.) The adaptive system is made of the following major components: - a 19 actuator adaptive mirror - a Shack-Hartmann wavefront sensor and its real time slope processor - a 68020 Motorola based real time control processor In the present paper we relate the works done for: - The interaction matrix identification. This matrix links the slope measurements and the controls of the adaptive mirror. A process to determine this matrix by a direct measurement method is described ; considerations on the matrix inversion and control mode cancellation are examined. - The control algorithm performing the real time computations needed to control the 19 actuators is described. Some results of the laboratory and observatory tests are given. Same paper has been presented during the SPIE's 90 Symposium on Astronomical Telescopes and Instrumentation for the 21st Century in February 1990.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Corinne Boyer, Vincent Michau, Gerard Rousset, "Adaptive optics: interaction matrix measurements and real time control algorithms for the COME-ON project", Proc. SPIE 1271, Adaptive Optics and Optical Structures, (1 August 1990); doi: 10.1117/12.20395; https://doi.org/10.1117/12.20395
PROCEEDINGS
19 PAGES


SHARE
KEYWORDS
Adaptive optics

Wavefronts

Mirrors

Computing systems

Actuators

Deformable mirrors

Wavefront sensors

RELATED CONTENT

Robust control of the MMT adaptive secondary mirror
Proceedings of SPIE (October 17 1997)
Low-cost adaptive optics systems
Proceedings of SPIE (July 07 2000)
First results with an adaptive optics test bench
Proceedings of SPIE (February 07 2003)
Come On An Adaptive Optics Prototype Dedicated To Infrared...
Proceedings of SPIE (September 20 1989)

Back to Top