2021
DOI: 10.1093/mnras/stab632 View full text |Buy / Rent full text
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Abstract: Predictive wavefront control is an important and rapidly developing field of adaptive optics (AO). Through the prediction of future wavefront effects, the inherent AO system servo-lag caused by the measurement, computation, and application of the wavefront correction can be significantly mitigated. This lag can impact the final delivered science image, including reduced strehl and contrast, and inhibits our ability to reliably use faint guidestars. We summarize here a novel method for training deep neural netw… Show more

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“…23 However, more work into necessary to understand the require training for on-sky deployment and the required hardware for real-time-control. These are also discussed by J. Nousianen et al (2021) 24 and R. Swanson et al (2021) 25 while showing results for other machine learning algorithms.…”
Section: Introductionmentioning
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“…23 However, more work into necessary to understand the require training for on-sky deployment and the required hardware for real-time-control. These are also discussed by J. Nousianen et al (2021) 24 and R. Swanson et al (2021) 25 while showing results for other machine learning algorithms.…”
Section: Introductionmentioning
“…Therefore, future work should also address maintaining the best possible performance under reasonably varying turbulence. The model learns on a scale of several seconds and can presumably adapt to changing atmospheric conditions at the shown excellent performance in pure predictive control (Swanson et al 2018(Swanson et al , 2021. Such a study should consider a variety of different, preferably realistically changing atmospheric conditions and misalignments as well as prerecorded on-sky data.…”
Section: Discussionmentioning
“…Males & Guyon (2018) address a closed-loop predictive control's impact on the postcoronagraphic contrast with a semianalytic framework. Swanson et al (2021) studied closed-loop predictive control with NNs via supervised learning, where a NN is learned to compensate for the temporal error.…”
Section: Related Workmentioning