发表机构
Univ. Paris-Saclay, Univ. Paris Cite, CEA, CNRS, AIM; Univ. Grenoble Alpes, CNRS, IPAG; Sorbonne Universite, CNRS, Institut d’Astrophysique de Paris; Pyxalis; CEA, Univ. Paris-Saclay, Irfu-DeDip（巴黎萨克雷大学、巴黎 Cité 大学、法国原子能和替代能源委员会、法国国家科学研究中心、天体物理与信息研究所; 格勒诺布尔阿尔卑斯大学、法国国家科学研究中心、行星与星系研究所; 索邦大学、法国国家科学研究中心、巴黎天体物理研究所; Pixalis公司; 法国原子能和替代能源委员会、巴黎萨克雷大学、研究部）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文提出HWO-AGATE十亿像素天体测量仪器的技术成熟化方案，通过端到端探测链验证220-MP CMOS传感器，解决性能、封装和数据处理三大挑战，目标达到TRL 5。
AI 中文摘要
本文介绍了HWO-AGATE（精确导引与天体测量目标搜寻类地行星）的发展策略，这是一种为未来宜居世界观测站（HWO）设计的高精度相对天体测量仪器概念。该仪器基于十亿像素级焦平面，集成了由Pyxalis开发的新一代大画幅GigaPyx CMOS传感器。所提出的架构依赖于四个220万像素传感器组装成焦平面阵列，并配备专用校准系统，以实现系外行星探测和表征所需的天体测量精度。初步研究确定了三大技术挑战。首先，220-MP探测器的性能必须根据HWO的天体测量要求进行验证。其次，需要开发适用于航天级的多传感器焦平面封装和集成解决方案，同时解决与大画幅CMOS探测器快速读出相关的电气和热约束。第三，必须实施星上校准数据处理架构，将原始数据量减少约两个数量级，以便在航天器资源限制内高效运行。为应对这些挑战，我们提出了一个全面的技术成熟化计划，基于构建具有代表性的端到端探测链。演示装置将包括配备220-MP传感器的部分焦平面、前端电子设备、专用处理单元和校准子系统。目标是证明符合HWO-AGATE要求，并将大画幅CMOS探测器技术的成熟度提升至技术就绪等级5（TRL 5）。探测器验证和航天级封装活动已通过机构资助和法国国家PEPR ORIGINS计划在RETINA（通过成像研究系外行星以进行窄角天体测量）项目中获得支持。
英文摘要
This paper presents the development strategy for HWO-AGATE (Accurate Guiding and Astrometry Targeting Exoearths), a high-precision relative astrometry instrument concept designed for the future Habitable Worlds Observatory (HWO). The instrument is based on a gigapixel-class focal plane that incorporates the new generation of large-format GigaPyx CMOS sensors developed by Pyxalis. The proposed architecture relies on four 220-megapixel sensors assembled into a focal plane array and coupled with a dedicated calibration system to achieve the astrometric precision required for exoplanet detection and characterization. Preliminary study identified three major technological challenges. First, the performance of the 220-MP detectors must be validated against HWO's astrometric requirements. Second, the development of space-qualified packaging and integration solutions is required for a multi-sensor focal plane, while addressing the electrical and thermal constraints associated with the fast readout of large-format CMOS detectors. Third, an onboard calibration data-processing architecture must be implemented to reduce the raw data volume by approximately two orders of magnitude, enabling efficient operation within spacecraft resource limits. To address these challenges, we propose a comprehensive technology maturation program based on the construction of a representative end-to-end detection chain. The demonstration setup will include a partial focal plane equipped with 220-MP sensors, front-end electronics, a dedicated processing unit, and the calibration subsystem. The objective is to demonstrate compliance with HWO-AGATE requirements and to raise the maturity of large-format CMOS detector technology to Technology Readiness Level 5 (TRL 5). Detector validation and space-qualified packaging activities are already supported through institutional funding and the French national PEPR ORIGINS program in the RETINA (Researching Exoplanets Through Imaging for Narrow-angle Astrometry) project.
Journal refSPIE 2026, Space Telescopes and Instrumentation 2026:, SPIE, Jul 2026, Copenhagen, Denmark
