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adaptive optics 1control theory 1frequency-domain control 1on-sky validation 1real-time performance 1

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1 paper

astro-ph.IM2026

DD4AO control law for RISTRETTO: robustness, real-time performance, and on-sky validation with PAPYRUS

Isaac Dinis, Muskan Schinde, Nicolas Blind +11

The paper presents the DD4AO frequency‑domain, data‑driven adaptive optics controller, its implementation in the RISTRETTO instrument, and on‑sky validation with the PAPYRUS system…