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Proceedings Paper

Adaptive optics: interaction matrix measurements and real time control algorithms for the COME-ON project
Author(s): Corinne Boyer; Vincent Michau; Gerard Rousset
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Paper 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.

Paper Details

Date Published: 1 August 1990
PDF: 19 pages
Proc. SPIE 1271, Adaptive Optics and Optical Structures, (1 August 1990); doi: 10.1117/12.20395
Show Author Affiliations
Corinne Boyer, Laserdot (United States)
Vincent Michau, ONERA (France)
Gerard Rousset, ONERA (France)

Published in SPIE Proceedings Vol. 1271:
Adaptive Optics and Optical Structures
Joachim J. Schulte-in-den-Baeumen; Robert K. Tyson, Editor(s)

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