Simulation of adaptive optics for the Vacuum Tower Telescope |
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| Authors: | Anita Enmark Thomas Berkefeld Oskar von der Lühe Torben Andersen |
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| Institution: | (1) Lund Observatory, Box 43, SE-22100 Lund, Sweden |
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| Abstract: | A simulation model of the adaptive optics of the German Vacuum Tower Telescope (VTT), Observatorio del Teide, Tenerife, is
presented. The model uses modules from the integrated model of the Euro50 extremely large telescope, and includes submodels
of a Shack-Hartmann wavefront sensor, a de-formable mirror, a tip-tilt mirror, high-voltage amplifier low-pass filters, a
reconstructor and a controller. We investigate the impact on the closed loop bandwidth of changes in controller configuration
and certain system parameters, such as low pass filter bandwidth and camera integration and readout time. Control strategies
were tested on simple models before implementation on the full VTT model. Using the models, different control strategies are
compared. |
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| Keywords: | Adaptive optics Simulation Control algorithms Solar telescope Modelling |
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