Scanning measuring system of stray light for optical remote sensing satellite
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摘要: 为了实际测量、验证光学遥感卫星的杂散光抑制能力，分析某些特殊卫星的成像轨道和时间特点，研制了一套基于7维大型机器人的光学遥感卫星杂散光扫描测试系统。根据卫星全年太阳照明几何条件，通过建立的光束扫描子系统各机构的控制方程构建照明光束的扫描位置、方位角（-90~+90）和俯仰角（-29~+42.5），精度分别达到10 mm、0.2和0.1。消光子系统采用反射率低于1.5%（400~1 600 nm）的材料和大消光比结构，极黑目标模拟器消光比可达9.910-7。研制的光学遥感卫星杂散光扫描测试系统能够满足目前大部分光学遥感相机的杂散光测试、分析和验证要求。Abstract: For measuring the stray light level and verifying the ability of stray light suppression of optical remote satellite, the imaging time and orbital characteristic of some satellite were analyed, a scanning system of stray light measuring for optical remote satellite was developed, which was based on a large 7-dimension robot. According to the annual lighting condition of satellite in orbit, the controlling formulae were deduced for all the kinematic mechanism, with the scanning azimuth angle -90-+90, pitch angle -29-+42.5, and their angular accuracy were up to 0.2 and 0.1 separately, the position accuracy was better than 10 mm. Otherwise, an extinction subsystem, which was made was low reflectance material(lower than 1.5% between 400-1 600 nm) and large extinction structure and extinction coefficient could reach 9.910-7, was used to simulate extreme dark target and deep space room. The scanning system of stray light measuring for optical remote satellite can satisfy most optical payload at present for stray light measurement, analysis and verification.
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Key words:
- stray light /
- optical camera /
- solar simulator /
- robot /
- dark room
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[1] Tim Johnson. Stray light, scatter, and black coatings[C]//OPTI 521-Optomechanical Engineering, 2012:11. [2] Mark A Goforth. General algorithm for stray light measurements of remote sensing imagery[C]//SPIE, 2006, 6291:6291B. [3] Du Shusong, Wang Yongmei, Du Guojun. Stray light analysis of Fabry-Perot interference imaging spectrometer[J]. Journal of Applied Optics, 2009, 30(2):246-251. (in Chinese) 杜述松, 王咏梅, 杜国军. 干涉成像仪的杂散光分析[J]. 应用光学, 2009, 30(2):246-251. [4] Yuan Yukai. Stray light suppressing measure of optical system[J]. Journal of Atmosperic and Environmental Optics, 2007, 2(1):6-10. (in Chinese) 原育凯. 光学系统杂散光的消除方法[J]. 大气与环境光学学报, 2007, 2(1):6-10. [5] Eddy R, Design and construction of JPL SSL5B solar simulator[R]. US:JPL Internal Document, 1968. [6] Brinkman P W. Main characteristics of the large space simulator (lss) at ESA/ESTEC, LLS(Ⅱ)[C]//13th SSC, 1984:19840026401. [7] Huang Bencheng, Pang Hewei, Zang Youzhu. The conception and the development of KM6 solar simulator[J]. Spacecraft Environment Engineering, 2003, 20(1):1-4. (in Chinese) 黄本诚, 庞贺伟, 藏友竹. KM6太阳模拟器的研制方案与进展[J].航天器环境工程, 2003, 20(1):1-4. [8] Huang Bencheng. Space environment yest facility for manned spacecraft[J]. Chinese Space Science and Technology, 2002, 3:1-6. (in Chinese) 黄本诚. KM6载人航天器空间环境实验设备[J]. 中国空间科学技术, 2002, 3:1-6. [9] Zhang Rong, Li Hongsong, Xiang Yanhong. Development of KFTA solar simulator[J]. Spacecraft Environment Engineering, 2009, 26(6):548-554. (in Chinese) 张容, 李竑松, 向艳红. KFTA太阳模拟器研制[J].航天器环境工程, 2009, 26(6):548-554. [10] Yang Linhua, Fan Ning, Shi Ruiliang. Adjustment method for collima ting mirror of KM6 solar simulator[J]. Spacecraft Environment Engineering, 2005, 22(6):342-346. (in Chinese) 杨林华,范宁,史瑞良. KM6太阳模拟器拼接式准直镜的装校技术[J]. 航天器环境工程, 2005, 22(6):342-346. [11] Li Junlin, Zhang Liming, Si Xiaolong. BRDF device based on six-axis robot[J]. Optics and Precision Engineering, 2014, 22(11):2983-2989. (in Chinese) 李俊麟, 张黎明, 司孝龙. 基于六轴串联机械手的双向反射分布函数测量装置[J]. 光学精密工程, 2014, 22(11):2983-2989. [12] Li Junlin, Zhang Liming, Si Xiaolong. Development of BRDF absolute measuring device[J]. Acta Optica Sinica, 2014, 34(5):0528002. (in Chinese) 李俊麟, 张黎明, 司孝龙. 双向反射分布函数绝对测量装置研制[J]. 光学学报, 2014, 34(5):0528002. -
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