| 十字形磁梯度张量结构在多磁偶极子测量中的误差与修正方法 |
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| 引用本文： | 徐超群,易忠,刘超波,王斌. 十字形磁梯度张量结构在多磁偶极子测量中的误差与修正方法[J]. 航天器环境工程, 2017, 34(3): 312-316 |
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| 作者姓名： | 徐超群 易忠 刘超波 王斌 |
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| 作者单位： | 北京卫星环境工程研究所 可靠性与环境工程技术重点实验室, 北京 100094;北京卫星环境工程研究所 可靠性与环境工程技术重点实验室, 北京 100094;北京卫星环境工程研究所, 北京 100094;北京卫星环境工程研究所, 北京 100094 |
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| 基金项目： | 国家自然科学基金青年科学基金项目“基于磁场梯度张量的多磁源目标反演方法研究”（编号：51207011） |
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| 摘 要： | 磁场全张量探测技术在多磁源反演中有着重要意义。十字形磁梯度张量结构因其计算简单、精度高等特点被广泛采用,但其在多磁源反演中的全方位误差分析和修正方法有待完善。文章研究多磁偶极子分辨的问题,分析十字形计算结构和误差来源;结果表明磁力仪的精度、整体结构、背景环境和基线选取都会造成误差,甚至导致错误;最后给出修正方法和建议,同时提出可行的扫描方法。
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| 关 键 词： | 多磁偶极子 十字形结构 误差 修正方法 |
| 收稿时间： | 2017-02-27 |
| 修稿时间： | 2017-05-15 |
The error and correction of cross-shaped magnetic gradient tensor in multi-magnetic dipole measurement |
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| XU Chaoqun,YI Zhong,LIU Chaobo and WANG Bin. The error and correction of cross-shaped magnetic gradient tensor in multi-magnetic dipole measurement[J]. Spacecraft Environment Engineering, 2017, 34(3): 312-316 |
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| Authors: | XU Chaoqun YI Zhong LIU Chaobo WANG Bin |
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| Affiliation: | Science and Technology on Reliability and Environmental Engineering Laboratory, Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China;Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China;Science and Technology on Reliability and Environmental Engineering Laboratory, Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China;Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China;Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China;Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China |
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| Abstract: | The magnetic field full tensor detection is a promising technique for the multi-magnetic source inversion. The cross-shaped magnetic gradient tensor structure is widely used for its simple calculation, high precision and other desirable characteristics. But the systematic error analysis and the correction methods in the multi-magnetic source inversion field remain to be improved. This paper studies the multi-dipole discrimination, analyses the calculation structure and the error sources of cross shape. It is shown that the magnetometer precision, the overall structure, the background environment and the baseline selection will all cause errors, and even lead to mistakes. The correction methods and suggestions are then proposed, as well as a feasible scanning method. |
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| Keywords: | multi-magnetic dipole cross-shaped structure error correction methods |
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