摘要
对于地球同步轨道空间遥感器的成像系统,太阳入侵引起的杂散光和热流量问题是影响系统成像质量的重要因素。目前,解决这个问题的一个有效办法是在通光口径处安装一个外遮光罩。对于未来大口径高分辨率成像系统,其遮光罩尺寸受到了火箭整流罩空间包络的限制。针对地球同步轨道遥感器的高分辨率大口径成像系统,研究了一种随动可展开的异形遮光罩技术,提出一种收缩发射、在轨展开的设计方案,可以优化遮光罩与卫星的空间接口关系;同时,随动技术可以让遮光罩具备相对于太阳入射角度的转动功能,对日形成遮蔽,更加有效地解决太阳引起的杂散光和热流量问题。
For optical system on geostationary satellite.in space, stray light and thermal flux problems caused by the intrusion of sun light will have adverse effects on image quality. A baffle system should be equipped on optical system to solve these problems, but for high resolution optical system with large aperture, the baffle will exceed the dimensions of the launch vehicle. To meet the need of large aperture in optical system, a deployable and rotatable baffle servo system was designed. The baffle is in contraction in launch time and it will not deploy until the satellite is on orbit. In addition, baffle can rotate synchronously to shade the sun lights, this function helps to address the stray light and thermal flux problem of optical systems on remote sense more efficiently.
出处
《红外技术》
CSCD
北大核心
2012年第2期73-77,共5页
Infrared Technology
基金
中科院上海技术物理研究所自由探索基础研究项目
项目编号:Q-ZY-1
关键词
地球同步轨道
空间遥感器
遮光罩
可展开
随动
geostationary, remote sensor, baffle, deployable, rotatable servosystem
