中国空间科学技术（中英文）2024，Vol.44Issue(5)：115-126,12.DOI:10.16708/j.cnki.1000-758X.2024.0080
可见红外一体化敏捷小卫星微振动抑制方法
Micro-vibration suppression method for agile&visible/infrared integrated small satellite
摘要
Abstract
With increasing demand for high resolution,integration and agility of optical remote sensing small satellites,visible/infrared dual-color common aperture camera as well as CMG(control moment gyroscope)are installed to meet the requirements of miniaturization,all-day and night,multi-target and multi-model imaging.On such satellites there are several kinds of components with micro-vibration,including CMG,infrared camera cryocooler,etc.,which has a great influence on image quality of camera and is difficult to suppress.Therefore,a comprehensive method for suppressing micro-vibration caused by above-mentioned disturbance sources is proposed,including CMG vibration isolator,isolating installation between cryocooler and camera optical structure,and damping truss is designed and installed to realize isolation between camera optical and satellite platform structure.Using above integrated disturbance source damping and terminal isolation measures,through analysis,calculation,satellite micro-vibration experiment verification and in-orbit test,the effect of micro vibration on image quality can be effectively reduced.Even for visible infrared integrated camera,the in-orbit dynamic MTF(modulation transfer function)of visible channel with sub-meter resolution can reach 0.1,and the influence factor of micro vibration on MTF can be controlled at 0.991.关键词
可见红外一体化/相机/敏捷/小卫星/微振动抑制Key words
visible/infrared integration/camera/agile/small satellite/micro-vibration suppression分类
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阎梅芝,魏建光,赵志明,果琳丽,黄伟,常新亚,刘朋,刘涌,冯振伟..可见红外一体化敏捷小卫星微振动抑制方法[J].中国空间科学技术（中英文）,2024,44(5):115-126,12.基金项目
国家自然科学基金(11773004) （11773004）
