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A review on DFACS(I):System design and dynamics modeling

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Chinese Journal of Aeronautics 2024年第5期37卷 92-119页

作者： Bohan JIAO Qifan LIU Zhaohui DANG Xiaokui YUE yonghe zhang Yuanqing XIA Li DUAN Qinglei HU Chenglei YUE Pengcheng WANG Ming GUO Zhansheng DUAN Bing CUI Chu zhang Xiaodong SHAO School of Astronautics Northwestern Polytechnical UniversityXi’an 710072China Innovation Academy for Microsatellites Chinese Academy of SciencesShanghai 710699China School of Automation Beijing Institute of TechnologyBeijing 100081China Institute of Mechanics Chinese Academy of SciencesBeijing 710043China School of Automation Science and Electrical Engineering Beihang UniversityBeijing 100191China School of Automation Science and Engineering Xi’an Jiaotong UniversityXi’an 710049China

The Drag-Free and Attitude Control System(DFACS)is a critical platform for various space missions,including high precision satellite navigation,geoscience and gravity field measurement,and space scientific *** paper presents a comprehensive review of over sixty years of research on the design and dynamics model of ***,we examine the open literature on DFACS and its applications in Drag-Free missions,providing readers with necessary background information on the ***,we analyze the system configurations and main characteristics of different DFACSs,paying particular attention to the coupling mechanism between the system configuration and dynamics ***,we summarize the dynamics modeling methods and main dynamics models of DFACS from multiple perspectives,including common fundamentals and specific ***,we identify current challenges and technological difficulties in the system design and dynamics modeling of DFACS,while suggesting potential avenues for future *** paper aims to provide readers with a comprehensive understanding of the state-of-the-art in DFACS research,as well as the future prospects and challenges in this field.

关键词： Drag-Free DFACS System Design Dynamics Modeling Control design

A review on DFACS(II):Modeling and analysis of disturbances and noises

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Chinese Journal of Aeronautics 2024年第5期37卷 120-147页

作者： Chenglei YUE Bohan JIAO Zhaohui DANG Xiaokui YUE yonghe zhang Yuanqing XIA Li DUAN Qinglei HU Qifan LIU Pengcheng WANG Ming GUO Zhansheng DUAN Bing CUI Chu zhang Xiaodong SHAO School of Astronautics Northwestern Polytechnical UniversityXi’an 710072China Innovation Academy for Microsatellites Chinese Academy of SciencesShanghai 710699China School of Automation Beijing Institute of TechnologyBeijing 100081China Institute of Mechanics Chinese Academy of SciencesBeijing 710043China School of Automation Science and Electrical Engineering Beihang UniversityBeijing 100191China School of Automation Science and Engineering Xi’an Jiaotong UniversityXi’an 710049China

This paper presents Part II of a review on DFACS,which specifically focuses on the modeling and analysis of disturbances and noises in *** Part I,the system composition and dynamics model of the DFACS were *** this paper,we discuss the effects of disturbance forces and noises on the system,and summarize various analysis and modeling methods for these interferences,including the integral method,frequency domain analysis method,and magnitude evaluation *** analyzing the impact of disturbances and noises on the system,the paper also summarizes the system’s performance under slight ***,we highlight current research difficulties in the field of DFACS noise ***,this paper provides valuable insights into the modeling and analysis of disturbances and noises in DFACSs,and identifies key areas for future research.

关键词： Drag-free DFACS Disturbance Analysis Noise Analysis Frequency Domain Analysis Performance Evaluation

Application and prospect of the fluid cooling system of solar arrays for probing the Sun

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Astronomical Techniques and Instruments 2024年第1期1卷 62-70页

作者： Kangli Bao Xiaofei Zhu Jianchao Feng Liu Liu Xiaofeng zhang Zhiming Cai Jun Lin yonghe zhang Innovation Academy for Microsatellites of Chinese Academy of Sciences Shanghai 201304China Yunnan Observatories Chinese Academy of SciencesKunming 650216China

The Solar Close Observations and Proximity Experiments(SCOPE)mission,which has been proposed by the Yunnan Observatories,Chinese Academy of Sciences,aiming to operate at a distance of 5 to 10 solar radii from the Sun,plans to complete the in situ detection of the solar eruption process and observation of the magnetic field structure *** solar flux received by the satellite ranges from 10^(3) to 10^(6) Wm^(-2),which poses challenges for thermal management of the solar *** this work,the solar array cooling system of the Parker Solar Probe is discussed,the developments of the fluid loop technique are reviewed,and a research plan for a next-generation solar array cooling system is *** paper provides a valuable reference for novel thermal control systems in spacecraft for solar observation.

关键词： In situ detection of solar eruption Solar array cooling system Pumped fluid loop High heat flux dissipation

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轻量化的端到端非合作目标位姿估计方法

激光与光电子学进展 2024年第14期61卷 409-417页

作者：刘佳辉张永合张文秀中国科学院微小卫星创新研究院上海201304 中国科学院大学北京100049

针对空间非合作目标六自由度位姿估计问题,基于卷积神经网络设计一种轻量化网络LSPENet,无须手动设计特征便可实现端到端的位姿估计。使用深度可分离卷积、高效通道注意力(ECA)机制构成基本模块,兼顾了网络的复杂度和准确度。设计两个... 详细信息

针对空间非合作目标六自由度位姿估计问题,基于卷积神经网络设计一种轻量化网络LSPENet,无须手动设计特征便可实现端到端的位姿估计。使用深度可分离卷积、高效通道注意力(ECA)机制构成基本模块,兼顾了网络的复杂度和准确度。设计两个分支分别用于估计位置和姿态,位置估计使用直接回归法,姿态估计引入软分配编码。在URSO数据集的实验结果表明:姿态软分配编码相比直接回归姿态能够显著减小姿态误差;相比其他端到端位姿估计网络,所提网络的参数量减少76.7%,单幅推理时间降低13.3%,同时位置估计精度提高54.6%,姿态估计精度提高57.8%。实现的轻量化端到端位姿估计网络为星载单目视觉位姿估计提供了新思路。

关键词：图像处理卷积神经网络位姿估计非合作目标软分配编码

面向非均匀不连续X射线望远镜的最优化精密温控方法与试验验证

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光学精密工程 2024年第14期32卷 2225-2235页

作者：张晓峰冯建朝马佳廖星张永合陈勇中国科学院微小卫星创新研究院上海201203 中国科学院高能物理研究所北京100049

本文旨在实现EP卫星X射线望远镜的精密控温,通过建立Wolter-I型掠入射X射线望远镜数学传热模型,揭示了热量在聚焦镜组中的传递规律,并设计了两类主动控温加热器。针对望远镜非均匀、不连续构型导致的热场调控难题,提出了最优化精密控温... 详细信息

本文旨在实现EP卫星X射线望远镜的精密控温,通过建立Wolter-I型掠入射X射线望远镜数学传热模型,揭示了热量在聚焦镜组中的传递规律,并设计了两类主动控温加热器。针对望远镜非均匀、不连续构型导致的热场调控难题,提出了最优化精密控温方法,兼顾控温指标与工艺研制难度,构建了关于热量补偿如何分区调配的代价函数。通过设置关于平均偏差、最大偏差、区域个数、最小区域长度的权重参数,获得了第一类加热器最优化设计方案。整星级真空试验结果表明:54个镜片温度范围为19.1~20.9℃,且时域温度稳定性较好,波动小于0.2℃,满足X射线望远镜(20±1)℃的指标要求,权重参数设计合理。本研究提出的方法,成功应对了非均匀、不连续X射线望远镜精密控温难题,为温度要求较高的空间科学探测器提供了技术支持。

关键词：精密控温最优化 X射线非均匀不连续 EP卫星

同方期刊数据库博看期刊评论

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编创京剧剧本向翁偶虹先生学什么

中国京剧 2024年第8期 30-37页

作者：张永和不详

著名戏曲编剧、评论家翁偶虹先生自幼喜爱京剧,一生听戏、学戏、唱戏、编戏、论戏、画戏,对京剧艺术有深厚的造诣和深刻的见解,在京剧编剧、评论和脸谱研究等方面为后人留下宝贵财富,提供借鉴范本。他熟悉京剧艺术规律,了解行当、流派... 详细信息

著名戏曲编剧、评论家翁偶虹先生自幼喜爱京剧,一生听戏、学戏、唱戏、编戏、论戏、画戏,对京剧艺术有深厚的造诣和深刻的见解,在京剧编剧、评论和脸谱研究等方面为后人留下宝贵财富,提供借鉴范本。他熟悉京剧艺术规律,了解行当、流派、演员特点,自觉运用多种编剧方法进行剧目创作,其作品《锁麟囊》《将相和》《大闹天宫》《周仁献嫂》《李逵探母》《响马传》《红灯记》等家喻户晓,广为流传。今年是翁偶虹先生逝世三十周年,本期我们关注探讨翁偶虹先生及其编剧艺术,以为当下的京剧创作提供参考。

关键词：《红灯记》《锁麟囊》《大闹天宫》翁偶虹京剧艺术画戏编剧艺术剧目创作

(Sm_(1-x)Er_(x))_(2)(Zr_(0.7)Ti_(0.3))_(2)O_(7)陶瓷材料的热物理性能研究

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中国稀土学报 2024年第3期42卷 515-521页

作者：牟仁德谢敏张永和王志刚宋希文中国航发北京航空材料研究院航空材料先进腐蚀与防护航空科技重点实验室北京100095 内蒙古科技大学材料与冶金学院内蒙古包头014010

采用固相合成法制备了(Sm_(1-x)Er_(x))_(2)(Zr_(0.7)Ti_(0.3))_(2)O_(7)(x=0,0.2,0.4)陶瓷材料,研究其物相结构及热物理性能。结果表明:(Sm_(1-x)Er_(x))_(2)(Zr_(0.7)Ti_(0.3))_(2)O_(7)(x=0,0.2,0.4)陶瓷材料均为单一立方烧绿石结构,晶格常数随Er^(3+)掺杂量的增加而降低。掺杂Er_(2)O_(3)可显著降低Sm_(2)(Zr_(0.7)Ti_(0.3))_(2)O_(7)陶瓷材料的热导率,屏蔽热辐射,减缓高温下热导率异常上升的趋势。Er^(3+)部分取代Sm^(3+)导致陶瓷材料的热膨胀系数从11.52 K^(-1)降低到10.89 K^(-1),但仍与YSZ陶瓷材料的热膨胀系数接近,满足热障涂层材料的应用要求。

关键词：热障涂层陶瓷热导率热膨胀系数掺杂锆酸钐

Space advanced technology demonstration satellite

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Science China(Technological Sciences) 2024年第1期67卷 240-258页

作者： zhang XiaoFeng CHEN Wen ZHU XiaoCheng MENG Na HE JunWang BI XingZi zhang yonghe SHI Qi LI Fei LIU Rui FENG ZhengGong LIU Liu LI JinSong WU HaiChen XU DongXiao LI TaiJie HUANG JiangJiang LIU Shuo LI TianTong YU XianSheng GAO Yang ZHOU Heng BAN HanYu zhang YanLi zhang YueTing YANG YingQuan HE Tao DUAN XuLiang CHEN Xin WANG YaMin SUN AnTai zhang KuoXiang SUN Ying WANG YaoBin FAN ChengCheng XIONG ShaoLin LI XinQiao WEN XiangYang LING ZhiXing SUN XiaoJin zhang Chen BAI XianYong WANG ZhanShan DENG YuanYong TIAN Hui YANG JianFeng XUE HongBo SANG Peng LIU JinGuo ZHENG HuiLong ZHU Xiang HE JianWu LI Hui XU LuXiang XU ShuYan CHEN WenWu LIU ZhenDong WANG ZhaoLi MAO XiangLong GAO Rong LI ZongXuan DING GuoPeng WANG XinYu DOU RunJiang WENG LuBin LUO Hao WANG YaPing LIANG XianFeng FANG ZiRuo Innovation Academy for Microsatellites Chinese Academy of SciencesShanghai 201203China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China National Astronomical Observatory of China Beijing 100101China Shanghai Institute of Technical Physics Chinese Academy of SciencesShanghai 200083China Institute of Precision Optical Engineering School of Physics Science and EngineeringTongji UniversityShanghai 200092China School of Earth and Space Sciences Peking UniversityBeijing 100871China Xi’an Institute of Optics and Precision Mechanics Chinese Academy of SciencesXi’an 710119China National Space Science Center Chinese Academy of SciencesBeijing 100190China Shenyang Institute of Automation Chinese Academy of SciencesShenyang 110016China Institute of Engineering Thermophysics Chinese Academy of SciencesBeijing 100190China Institute of Mechanics Chinese Academy of SciencesBeijing 100190China Shanghai Institute of Organic Chemistry Chinese Academy of SciencesShanghai 200032China Hangzhou Institute for Advanced Study University of Chinese Academy of SciencesHangzhou 310024China Nanyang Technological University Singapore 569830Singapore Dalian Institute of Chemical Physics Chinese Academy of SciencesDalian 116023China Technical Institute of Physics and Chemistry Chinese Academy of SciencesBeijing 100049China Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China Institute of Semiconductors Chinese Academy of SciencesBeijing 100083China Institute of Automation Chinese Academy of SciencesBeijing 100190China School of Aeronautics and Astronautics Zhejiang UniversityHangzhou 310058China

The Space Advanced Technology demonstration satellite(SATech-01),a mission for low-cost space science and new technology experiments,organized by Chinese Academy of Sciences(CAS),was successfully launched into a Sun-synchronous orbit at an altitude of~500 km on July 27,2022,from the Jiuquan Satellite Launch *** as an experimental platform for space science exploration and the demonstration of advanced common technologies in orbit,SATech-01 is equipped with 16 experimental payloads,including the solar upper transition region imager(SUTRI),the lobster eye imager for astronomy(LEIA),the high energy burst searcher(HEBS),and a High Precision Magnetic Field Measurement System based on a CPT Magnetometer(CPT).It also incorporates an imager with freeform optics,an integrated thermal imaging sensor,and a multi-functional integrated imager,*** paper provides an overview of SATech-01,including a technical description of the satellite and its scientific payloads,along with their on-orbit performance.

关键词： SATech-01 spacecraft design scientific instruments on-orbit performance

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基于模型和样条的星敏感器在轨自标定方法

光学学报 2024年第12期44卷 254-262页

作者：闫浩东支帅陈旭睿李照雄丁国鹏张洋洋张永合朱振才中国科学院微小卫星创新研究院卫星数字化重点实验室上海201210 中国科学院大学北京100049 上海科技大学信息科学与技术学院上海201210

星敏感器长期在轨运行时,畸变会逐渐积累,因此对星敏感器进行在轨标定很有必要。目前,大多数星敏感器在轨标定算法仅依赖于星间角距的不变性,并需要较长的标定时间。本文算法的创新性在于利用星间角距关系和星点像素位置关系,将畸变信... 详细信息

星敏感器长期在轨运行时,畸变会逐渐积累,因此对星敏感器进行在轨标定很有必要。目前,大多数星敏感器在轨标定算法仅依赖于星间角距的不变性,并需要较长的标定时间。本文算法的创新性在于利用星间角距关系和星点像素位置关系,将畸变信息解耦为粗校准的参数化信息和精校准的非参数化信息。充分考虑到星敏感器的工作性质,利用B样条算法的特点,使得连续的在轨校正仅需极少的时间。相较于目前常用的地面标定算法,本文算法在实现更准确的星点位置校正和更精确的姿态输出精度的前提下,训练完全部数据只需要几百毫秒的时间。在经过本文算法的标定后,在轨星敏感器的星点位置偏差由0.55766 pixel降低为0.23706 pixel,测量精度由5.857″提高到2.775″,这为未来低成本卫星搭载非专业化设计的星敏感器提供了一定的算法参考。

关键词：星敏感器光学畸变在轨标定 B样条算法图像处理