Simulation of adaptive optics for the Vacuum Tower Telescope

Details Simulation of adaptive optics for the Vacuum Tower Telescope Simulation of adaptive optics for the Vacuum Tower Telescope

Apr 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006exa....21...87e&link_type=abstract

Experimental Astronomy, Volume 21, Issue 2, pp.87-99

Physics

Optics

Adaptive Optics, Simulation, Control Algorithms, Solar Telescope, Modelling

Scientific paper

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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