Identification and calibration of the interaction matrix parameters for AO and MCAO systems | Zendy

Benoît Neichel | Zendy; Amélie Parisot | Zendy; Cyril Petit | Zendy; Thierry Fusco | Zendy; François Rigaut | Zendy

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Identification and calibration of the interaction matrix parameters for AO and MCAO systems

Author(s) -

Benoît Neichel,

Amélie Parisot,

Cyril Petit,

Thierry Fusco,

François Rigaut

Publication year - 2012

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.925277

Subject(s) - computer science , calibration , set (abstract data type) , matrix (chemical analysis) , identification (biology) , construct (python library) , contrast (vision) , algorithm , artificial intelligence , mathematics , materials science , botany , composite material , biology , programming language , statistics

New tomographic Adaptive Optics (AO) concepts require a good knowledge of the system geometry and characteristics. These parameters are used to feed the tomographic reconstructors. In this paper we present a method to precisely identify the parameters required to construct an accurate synthetic set of models such as inuence functions, mis-registrations, directions of analysis or altitude of the DMs. The method is based on a multiparameter t of the interaction matrix. This identication method nds also its application in high contrast AO systems, such as SPHERE : in that case it is used as a diagnostic tool in order to precisely realign the system. The method has been tested and successfully implemented on HOMER, SPHERE and GeMS. Experimental results for these three systems are presented.

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