Compensating atmospheric distortions of point sources and extended objects through an adaptive iterative procedure

C. Scheifling; G. Marchi

doi:10.1117/12.897723

10 October 2011 Compensating atmospheric distortions of point sources and extended objects through an adaptive iterative procedure

C. Scheifling, G. Marchi

Author Affiliations +

Proceedings Volume 8178, Optics in Atmospheric Propagation and Adaptive Systems XIV; 81780J (2011) https://doi.org/10.1117/12.897723
Event: SPIE Remote Sensing, 2011, Prague, Czech Republic

Abstract

In this paper we introduce a technique to correct atmospheric turbulence. The characteristic of this promising procedure is that the distorted wavefront is corrected without any information about the wavefront itself. This technique relies on the combined use of a deformable mirror controlled by a Stochastic Parallel Gradient Descent (SPGD) algorithm and an image quality measurement. Even though this procedure is in terms of time slower than a direct wavefront reconstruction, it appears that compared to conventional AO systems the problems related to scintillations are noticeably reduced.

Citation Download Citation

C. Scheifling and G. Marchi "Compensating atmospheric distortions of point sources and extended objects through an adaptive iterative procedure", Proc. SPIE 8178, Optics in Atmospheric Propagation and Adaptive Systems XIV, 81780J (10 October 2011); https://doi.org/10.1117/12.897723

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