论文标题
凯克（Keck All Sky Precision Audaptive Optrics Stography System）的白天校准和测试
Daytime calibration and testing of the Keck All sky Precision Adaptive Optics Tomography System
论文作者
论文摘要
Keck All Sky Precision自适应光学（KAPA）项目的开发于2018年9月启动，以升级Keck I自适应光学（AO）系统，以使用四个激光导向星（LGS）星际主义启用激光层析成像自适应光学器件（LTAO）。该项目包括用Toptica激光器替换现有的LMCT激光器，新的实时控制器（RTC）和Wavefront Sensor光学元件和相机的实现，以及新的白天校准和测试平台，以提供激光层析成像所需的基础架构。这里介绍的工作描述了新的白天校准基础架构，以测试KAPA层析成像算法的性能。本文概述了白天校准和层析成像算法的性能评估的硬件基础架构。这包括在AO台式焦点上模拟四个激光导恒星（LGS）和两个天然导向星（NGS）的光纤耦合光源的实现，以及在AO基础上进行的两个天然导向星（NGS），以及在AO台上的现有Telsim升级，以模拟焦点型焦点型动态型和风能驱动大气驱动大气驱动大气构成大气驱动的大气构成。可以在有效高度上调整的相屏幕可用于模拟最高10 m/s的风速，持续时间长达3 s。
The development of the Keck All sky Precision Adaptive optics (KAPA) project was initiated in September 2018 to upgrade the Keck I adaptive optics (AO) system to enable laser tomography adaptive optics (LTAO) with a four laser guide star (LGS) asterism. The project includes the replacement of the existing LMCT laser with a Toptica laser, the implementation of a new real-time controller (RTC) and wavefront sensor optics and camera, and a new daytime calibration and test platform to provide the required infrastructure for laser tomography. The work presented here describes the new daytime calibration infrastructure to test the performance for the KAPA tomographic algorithms. This paper outlines the hardware infrastructure for daytime calibration and performance assessment of tomographic algorithms. This includes the implementation of an asterism simulator having fiber-coupled light sources simulating four Laser Guide Stars (LGS) and two Natural Guide Stars (NGS) at the AO bench focus, as well as the upgrade of the existing TelSim on the AO bench to simulate focal anisoplanatism and wind driven atmospheric turbulence. A phase screen, that can be adjusted in effective altitude, is used to simulate wind speeds up to 10 m/s for a duration of upto 3 s.
