May 20, 2022 Presentation Open Access

Pou, Bartomeu; Smith, Jeffrey; Quinones, Eduardo; Martin, Mario; Gratadour, Damien

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{
  "inLanguage": {
    "alternateName": "eng", 
    "@type": "Language", 
    "name": "English"
  }, 
  "description": "<p>Extreme Adaptive Optics (AO) systems are designed to provide high resolution and high contrast observing capabilities on the largest ground-based telescopes through exquisite phase reconstruction accuracy. In that context, the pyramid wavefront sensor (P-WFS) has shown promise to deliver the means to provide such accuracy due to its high sensitivity. However, traditional methods cannot leverage the highly non-linear P-WFS measurements to their full potential. We present a predictive control method based on Reinforcement Learning (RL) for AO control with a P-WFS. The proposed approach is data-driven, has no assumptions about the system&#39;s evolution, and is non-linear due to the usage of neural networks. First, we discuss the challenges of using an RL control method with a P-WFS and propose solutions. Then, we show that our method outperforms an optimized integrator controller. Finally, we discuss its possible path for an actual implementation.</p>", 
  "license": "https://creativecommons.org/licenses/by/4.0/legalcode", 
  "creator": [
    {
      "affiliation": "Barcelona Supercomputing Center, Universitat Polit\u00e8cnica de Catalunya", 
      "@id": "https://orcid.org/0000-0001-8634-2316", 
      "@type": "Person", 
      "name": "Pou, Bartomeu"
    }, 
    {
      "affiliation": "School of Computing, Australian National University", 
      "@type": "Person", 
      "name": "Smith, Jeffrey"
    }, 
    {
      "affiliation": "Barcelona Supercomputing Center", 
      "@type": "Person", 
      "name": "Quinones, Eduardo"
    }, 
    {
      "affiliation": "Universitat Polit\u00e8cnica de Catalunya", 
      "@type": "Person", 
      "name": "Martin, Mario"
    }, 
    {
      "affiliation": "LESIA , Observatoire de Paris, Universit\u00e9 PSL, CNRS, Sorbonne Universit\u00e9, Universit\u00e9 de Paris, Australian National University", 
      "@type": "Person", 
      "name": "Gratadour, Damien"
    }
  ], 
  "url": "https://zenodo.org/record/6567127", 
  "datePublished": "2022-05-20", 
  "keywords": [
    "Adaptive Optics", 
    "Reinforcement Learning"
  ], 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.5281/zenodo.6567127", 
  "@id": "https://doi.org/10.5281/zenodo.6567127", 
  "@type": "PresentationDigitalDocument", 
  "name": "A Non Linear Control Method with Reinforcement Learning for Adaptive Optics with Pyramid Sensors"
}