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Magnetic dipole moment estimation and compensation for an accurate attitude control in nano-satellite missions

机译：磁偶极矩估计和补偿可在纳米卫星任务中进行精确的姿态控制

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摘要

Nano-satellites provide space access to broader range of satellite developers and attract interests as an application of the space developments. These days several new nano-satellite missions are proposed with sophisticated objectives such as remote-sensing and observation of astronomical objects. In these advanced missions, some nano-satellites must meet strict attitude requirements for obtaining scientific data or images. For LEO nano-satellite, a magnetic attitude disturbance dominates over other environmental disturbances as a result of small moment of inertia, and this effect should be cancelled for a precise attitude control. This research focuses on how to cancel the magnetic disturbance in orbit. This paper presents a unique method to estimate and compensate the residual magnetic moment, which interacts with the geomagnetic field and causes the magnetic disturbance. An extended Kalman filter is used to estimate the magnetic disturbance. For more practical considerations of the magnetic disturbance compensation, this method has been examined in the PRISM (Pico-satellite for Remote-sensing and Innovative Space Missions). This method will be also used for a nano-astrometry satellite mission. This paper concludes that use of the magnetic disturbance estimation and compensation are useful for nano-satellites missions which require a high accurate attitude control.
机译：纳米卫星为更广泛的卫星开发商提供了进入太空的机会，并随着太空发展的应用而引起人们的兴趣。如今，提出了一些新的具有复杂目标的纳米卫星任务，例如遥感和天文物体观测。在这些高级任务中，某些纳米卫星必须满足严格的姿态要求才能获取科学数据或图像。对于LEO纳米卫星，由于惯性矩较小，因此磁性姿态扰动比其他环境扰动要占支配地位，因此应消除这种影响以进行精确的姿态控制。这项研究的重点是如何消除轨道上的电磁干扰。本文提出了一种估计和补偿剩余磁矩的独特方法，该矩与地磁场相互作用并引起磁干扰。扩展的卡尔曼滤波器用于估计磁干扰。为了更实际地考虑电磁干扰补偿，已在PRISM（用于遥感和创新太空任务的微型卫星）中研究了此方法。这种方法也将用于纳米天文卫星任务。本文得出结论，电磁干扰估计和补偿的使用对于需要高精度姿态控制的纳米卫星任务很有用。

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  • 来源
    《Acta astronautica》 |2011年第12期|p.2038-2046|共9页
  • 作者

    Takaya Inamori; Nobutada Sako; Shinichi Nakasuka;

  • 作者单位

    Department of Aeronautics and Astronautics, University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo 713-8656,Japan;

    Department of Aeronautics and Astronautics, University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo 713-8656,Japan;

    Department of Aeronautics and Astronautics, University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo 713-8656,Japan;

  • 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

    nano satellite; attitude control; magnetic disturbance; extended kalman filter;

    机译：纳米卫星姿态控制磁干扰扩展卡尔曼滤波;

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