论文标题

Wavefront感测和控制与许多头部九头形模态基础

Wavefront Sensing and Control with the Many Headed Hydra Modal Basis

论文作者

Fowler, J., Stelter, R. Deno

论文摘要

空间和地面望远镜的未来与围绕波前传感和控制的技术和算法开发密切相关。只有在尖端的发展和异常想法的情况下,我们才能够在与地球 - 大气层抗衡的地面上建立衍射有限的观测值,以及对光学畸变和望远镜抖动的感觉和控制的基于空间的观测值。存在用于分解波前图像的多种数学基础,包括纬向模态,Zernike多项式和傅立叶模式。但是,以前的基础已经忽略了天文学光学的最重要元素:我们的领域仅与其中的人一样好。在本文中,我们建议使用自适应光学界的物理表示,提出了新的许多头部Hydra模态(Hydra头),以进行波前分解。我们发现,第一作者根据原始湍流图像的$ \ sim 1 \%$在正确的重建顺序上进行了最佳的波前分解。我们讨论了许多头部Hydra模态基础的工程含义,该基础应用于可变形的镜像技术以及主动和自适应光学控制回路内。最后,我们通过假设第一作者是最有效的波前探索预测控制途径,这对他们来说是一位高对比度成像科学家的成功未来。

The future of space and ground based telescopes is intimately tied to technology and algorithm development surrounding wavefront sensing and control. Only with cutting edge developments and unusual ideas will we be able to build diffraction limited observatories on the ground that contend with earth-atmosphere, as well as space-based observatories that sense and control for optical aberrations and telescope jitter. There exist a variety of mathematical bases for decomposing wavefront images, including the zonal modal basis, Zernike polynomials, and Fourier modes. However, previous bases have neglected the most vital element of astronomical optics: our field is only as good as the people in it. In this paper we propose a new Many Headed Hydra Modal Basis (hydra heads) for wavefront decomposition, using physical representations of the Adaptive Optics community. We find that the first author makes the best wavefront decomposition, on the order of a correct reconstruction within $\sim 1\%$ of the original turbulence image. We discuss engineering implications of the Many Headed Hydra Modal Basis, as applied to deformable mirror technology and within active and adaptive optics control loops. Finally, we explore predictive control avenues, by positing that the first author being the most effective wavefront predicts a successful future for them as a high contrast imaging scientist.

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