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论文:2019,Vol:37,Issue(2):283-290 |
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引用本文： |
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刘勇, 刘昆鹏, 侯晓磊, 潘泉, 张骏. 面向飞卫星ADCS的地磁场历表模型设计[J]. 西北工业大学学报 |
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LIU Yong, LIU Kunpeng, HOU Xiaolei, PAN Quan, ZHANG Jun. Design of Magnetic Field LUT Model for Femto-Satellites[J]. Northwestern polytechnical university |
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| 面向飞卫星ADCS的地磁场历表模型设计 |
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| 刘勇, 刘昆鹏, 侯晓磊, 潘泉, 张骏 |
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| 西北工业大学 自动化学院, 陕西 西安 710072 |
| 摘要: |
| 针对飞卫星姿态确定和控制系统（attitude determination and control system，ADCS）中，IGRF地磁场模型的计算复杂度高和存储空间量大的问题，设计了均匀采样和K曲率加权2种历表模型。首先，给出了均匀历表模型的软件流程、存储格式、轨道推演方法；然后，采用U曲率计算方法求解地磁场数据的离散曲率，并提出了K曲率加权方法设计非均匀历表模型；最后，比较了均匀采样和非均匀方法对原曲线的拟合程度，以及在ADCS中应用结果的比较。最终设计了适用于飞卫星的80点基于K曲率加权的非均匀历表模型，仅需0.96 kB存储空间，证明在计算速度和存储空间等方面和现有技术相比具有较大优势。 |
| 关键词:
飞卫星
ADCS
地磁场模型
历表模型
K曲率加权模型
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| Design of Magnetic Field LUT Model for Femto-Satellites |
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| LIU Yong, LIU Kunpeng, HOU Xiaolei, PAN Quan, ZHANG Jun |
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| School of Automation, Northwestern Polytechnical University, Xi'an 710072, China |
| Abstract: |
| Aiming at the high computational complexity and large storage of IGRF geomagnetic field model in Attitude Determination and Control System (ADCS), the uniform sampling model and K-Curvature weighted model have been established. First of all, storage format and track deduction method of uniform look-out-table (LUT) model is proposed. Then, this paper uses U-Discrete curvature calculation method to solve the discrete curvature of magnetic field data. Finally, the uniform sampling method and K-Curvature Weighted model in fitting the original curve has been compared. In general, this paper presents K curvature weighted non-uniform LUT model with only 80 points needed, and it only needs 0.96 kB. It proves great advantages in terms of computing speed and storage space compared with the existing technology. |
| Key words:
femto-satellites
ADCS
magnetic field model
LUT model
K-curvature weighted model
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| 收稿日期: 2017-12-09
修回日期:
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| DOI: 10.1051/jnwpu/20193720283 |
| 基金项目: 国家自然科学基金青年基金（61503304）、西北工业大学研究生创意创新种子基金（Z2017160）与国家自然科学基金面上项目（61374162）资助 |
| 通讯作者:
Email： |
| 作者简介: 刘勇(1983-),西北工业大学副教授,主要从事微纳卫星GNC技术、空间在轨操控及分布式信息融合研究。
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| 相关功能 |
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| 作者相关文章 |
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| 刘勇 在本刊中的所有文章 |
| 刘昆鹏 在本刊中的所有文章 |
| 侯晓磊 在本刊中的所有文章 |
| 潘泉 在本刊中的所有文章 |
| 张骏 在本刊中的所有文章 |
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