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Authors: M. Carbillet, C. Verinaud, M. Guarracino, L. Fini, O. Lardiere, B. Le Roux, A. Puglisi, B. Femenia, A. Riccardi, B. Anconelli, S. Correia, M. Bertero, and P. Boccacci
Abstract: We present recent developments of the CAOS "system", an IDL-based Problem Solving Environment (PSE) whose original aim was to define and simulate as realistically as possible the behavior of a generic adaptive optics (AO) system, from the atmosheric propagation of light to the sensing of the wave-front aberrations and the correction through a deformable mirror. The different developments made through the last 7 years result in a very versatile numerical tool complete of a global graphical interface (the CAOS Application Builder), and different specialized scientific packages: the original one designed for AO system simulations (the Software Package CAOS), an image reconstruction package with interferometric capabilities (the Software Package AIRY), and a more recent one being built and dedicated to multiconjugate AO (the Software Package MAOS). We present the status of the whole CAOS "system"/PSE, together with the most recent developments, including parallelization strategy considerations, examples of application, and plans for the next future.

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Posted by: admin, on 11/1/2006, in category "2004"
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Authors: B. Anconelli, M. Bertero, P. Boccacci, M. Carbillet, H. Lanteri, and S. Correia
Abstract: LINC/NIRVANA (LN) is the German-Italian beam combiner for the Large Binocular Telescope (LBT). It is a Fizeau interferometer and it will provide multiple images of the same target corresponding to different orientations of the baseline. For each one of these images the resolution is not uniform over the field since it is the resolution of a 22.8m mirror in the direction of the baseline and that of a 8.4m mirror in the orthogonal one. Therefore a unique high-resolution image can only be obtained by means of deconvolution methods. Four-years ongoing work of our group on this problem has already clarified the effects of partial adaptive optics corrections and partial coverage of the u,v plane and has produced the Software Package AIRY, a set of modules IDL-based and CAOS-compatible, which can be used for simulation and/or deconvolution of multiple images from the LBT instrument LN. In this paper we present a general approach to the design of methods for the simultaneous deconvolution of multiple images of the same object. These can include both quick-look methods, to be used for routinely process LN images, and ad-hoc methods for specific classes of astronomical objects. We describe several examples of these methods whose implementation and validation is in progress. Finally we present the last version of the Software Package AIRY.

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Posted by: admin, on 11/1/2006, in category "2004"
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Authors: M. Bertero, B. Anconelli, P. Boccacci, M. Carbillet, H. Lanteri, and C. Theys
Abstract: The Large Binocular Telescope (LBT), which is currently under construction on the top of Mount Graham in Arizona, will be a Fizeau interferometer with a maximum baseline of 22.8m. From the point of view of image reconstruction, the interesting feature of this instrument is that it will require routinely the use of multiple images deconvolution methods if the aim is to produce a unique image with the resolution of a 22.8m telescope. Our group is working on this problem since a few years and has already produced methods and software for the data reduction problem. In this paper we provide a survey of our ongoing work.

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Posted by: admin, on 11/1/2006, in category "2004"
Views: this article has been read 10313 times