AI 中文总结
MORFEO项目迈向最终设计评审，本文介绍其系统概况，包括双操作模式、光机械架构进展。详细阐述核心自适应硬件及控制策略，通过模拟框架展示最新性能估计，满足大气条件下相关要求。
AI 中文摘要
多共轭自适应光学中继器用于极大型望远镜观测（MORFEO）是用于极大型望远镜（ELT）的第一代自适应光学模块，旨在为MICADO近红外相机提供衍射极限、高度均匀的53×53角秒视场。随着项目迈向最终设计评审（FDR），所有子系统都有显著整合。本文介绍了MORFEO系统的最新概况，强调其双操作模式（MCAO和SCAO）及其光机械架构的最新进展。详细介绍了核心自适应硬件，包括第五代焦后可变形镜、跟踪钠层变化所需的高度复杂激光导星（LGS）物镜变焦系统以及自然导星（NGS）低阶和参考传感策略。还详细说明了由硬实时和软实时计算机架构管理的先进伪开环控制策略。最后报告了通过SPECULA模拟框架获得的最新端到端性能估计，表明在中等大气条件下符合严格的斯特列尔比和天空覆盖要求。
英文摘要
The Multiconjugate adaptive Optics Relay For ELT Observations (MORFEO) is a first-generation adaptive optics module for the Extremely Large Telescope (ELT), designed to deliver a diffraction-limited, highly uniform 53x53 arcsec field of view to the MICADO near-infrared camera. As the project advances toward its Final Design Review (FDR), significant consolidations have been achieved across all subsystems. This paper presents an updated overview of the MORFEO system, highlighting its dual operational modes (MCAO and SCAO) and recent developments in its opto-mechanical architecture. We dedicate specific focus to the core adaptive hardware, detailing the fifth-generation post-focal deformable mirrors, the highly complex Laser Guide Star (LGS) objective zoom system required to track sodium layer variations, and the Natural Guide Star (NGS) low-order and reference sensing strategies. Furthermore, we detail the advanced pseudo-open-loop control strategy managed by a split Hard and Soft Real-Time Computer architecture. Finally, we report the latest end-to-end performance estimations obtained via the SPECULA simulation framework, demonstrating compliance with the stringent Strehl Ratio and sky coverage requirements under median atmospheric conditions.
Comments11 pages, 9 figures, 2 tables. Submitted to Adaptive Optics for Extremely Large Telescopes 8, October 27 to 31, 2025 Viña del Mar, Chile
