航天器工程2026，Vol.35Issue(3)：103-109,7.DOI:10.3969/j.issn.1673-8748.2026.03.014
基于红外定标星的星库构建方法研究
Research on Construction Method of Infrared Calibrated Star Catalogue
顾强 1陈志维 2池碧茹 1温渊 1江亚州 1张嘉伟 1冯帅 1周梦东1
作者信息
- 1. 上海卫星工程研究所,上海 201109
- 2. 三峡大学 天文与空间科学研究中心,湖北 宜昌 443002
- 折叠
摘要
Abstract
The on-orbit geometric calibration of space-borne infrared cameras relies on high-preci-sion infrared calibration star catalogue to provide inertial benchmarks.While traditional visible-light star catalogs are difficult to match the spectral characteristics of infrared detection bands,resulting in insufficient calibration accuracy.Aiming at the on-orbit calibration requirements of infrared cameras in geosynchronous orbit,a complete technical system of"demand derivation-star catalog construction"is constructed in this paper.Firstly,combined with the core parameters of the infrared camera such as spectral band,field of view,and noise equivalent radiance,the quan-titative indicators of the infrared calibration star catalog such as spectral matching,star density,and position accuracy are systematically derived.Secondly,a star catalogue construction method based on multi-source space astronomical data fusion and stellar atmospheric model extrapolation is proposed to solve the key problem of missing data in the short-wave infrared band.Finally,the resulting infrared star catalogue achieves all-sky coverage with a stellar density no less than 10 stars per square degree and positional accuracy better than 0.1″,satisfying the high-precision re-quirements for on-orbit geometric correction of infrared cameras.This method achieves deep inte-gration of astronomical observation data with space engineering applications,providing theoreti-cal support and a technical paradigm for high-precision calibration of spaceborne infrared payloads.关键词
红外定标星库/星载红外相机/在轨几何校正/多源星表融合/恒星大气模型Key words
infrared calibration star catalogue/spaceborne infrared camera/on-orbit geometric cali-bration/multi-source star catalogue fusion/stellar atmospheric model分类
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顾强,陈志维,池碧茹,温渊,江亚州,张嘉伟,冯帅,周梦东..基于红外定标星的星库构建方法研究[J].航天器工程,2026,35(3):103-109,7.
