High fidelity simulations and control of contactless adaptive mirrors

Bernadett Stadler; Daniel Jodlbauer; Roberto Biasi; Mauro Manetti; Andreas Obereder; Ronny Ramlau; Matteo Tintori

doi:10.1117/12.3019627

28 August 2024 High fidelity simulations and control of contactless adaptive mirrors

Bernadett Stadler, Daniel Jodlbauer, Roberto Biasi, Mauro Manetti, Andreas Obereder, Ronny Ramlau, Matteo Tintori

Proceedings Volume 13097, Adaptive Optics Systems IX; 130970Q (2024) https://doi.org/10.1117/12.3019627
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

In the design process of large adaptive mirrors numerical simulations represent the first step to evaluate the system design compliance in terms of performance, stability and robustness. To this end an efficient and accurate digital twin is required, which represents the deformable mirror and consists of complex physical models. For the next generation of Extremely Large Telescopes increased system dimensions and increased bandwidths lead to the need of modeling not only the deformable mirror alone, but also all the system supporting structure or even the full telescope. We present our high fidelity digital twin, which allows to perform the simulations within an acceptable amount of time and computational resources. The control strategy of the adaptive mirror is based on a mix between feedforward (FF) and feedback (FB) contributions. In this context optimized control parameters are important to improve both the system disturbance rejection and tracking performance. We analyze the feasibility of our digital twin via high fidelity simulations for the P72 prototype of the adaptive mirror of the Giant Magellan Telescope.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Bernadett Stadler, Daniel Jodlbauer, Roberto Biasi, Mauro Manetti, Andreas Obereder, Ronny Ramlau, and Matteo Tintori "High fidelity simulations and control of contactless adaptive mirrors", Proc. SPIE 13097, Adaptive Optics Systems IX, 130970Q (28 August 2024); https://doi.org/10.1117/12.3019627

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