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Multiple blur of star image and the restoration under dynamic conditions

机译:恒星图像的多重模糊和动态条件下的修复

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摘要

According to the flight characteristics of vehicle under high dynamic conditions, the impact of linear, angular, and vibrational motion on star sensor imaging was researched. Then, the mathematical model of motion blur corresponding to various flight conditions was deduced, and the star centroiding accuracy affected by motion blur was analyzed subsequently. On this basis, the mechanism of multiple blur was discussed. In order to ensure the accuracy of star sensor in high dynamic environment, a restoration method was proposed to remove the multiple blur. Finally, simulations are implemented to validate the restoration method.
机译:根据高动态条件下飞行器的飞行特性,研究了直线运动,角运动和振动运动对恒星传感器成像的影响。然后,推导了与各种飞行条件相对应的运动模糊的数学模型,随后分析了运动模糊对恒星质心精度的影响。在此基础上,讨论了多重模糊的机理。为了保证恒星传感器在高动态环境下的精度,提出了一种消除多重模糊的恢复方法。最后,进行仿真以验证恢复方法。

著录项

  • 来源
    《Acta astronautica》 |2011年第12期|p.1903-1913|共11页
  • 作者

    Wu Xiaojuan; Wang Xinlong;

  • 作者单位

    School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, PR China;

    School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    star sensor; motion; multiple blur; image restoration;

    机译:恒星传感器;运动;多重模糊;图像恢复;

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