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Alternative TitleA Method of in-orbit Calibration of Fluxgate Magnetometer Based on the Measurement of Absolute Scalar Magnetometer
张镇绮; 李磊; 周斌; 张艺腾
Source Publication空间科学学报
Keyword磁通门磁强计 卫星在轨标定 标定算法
Other AbstractHigh precision measurement of the magnetic field is required for in-orbit magnetic field monitoring and mapping. Due to the restrictions of processing technology and installation, the three axes of fluxgate magnetometer cannot be strictly orthogonal and the offsets in three directions are unknown in actual measurement. To solve this problem, it is necessary to determine the alignment and offset of the fluxgate magnetometer in-orbit instead of on the ground. According to the method of calibrating with scalar magnetometer, a method for calibrating the alignment, sensitivity, and offset by an improved least square calibration algorithm is proposed. Results show that considering the noise of detector itself, the error of fluxgate magnetometer can be reduced from about 100 nT to less than 0.2 nT. This calibration algorithm offers a feasible way of in-orbit high-precision measurements.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
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Document Type期刊论文
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GB/T 7714
张镇绮,李磊,周斌,等. 基于绝对磁场测量的磁通门磁强计在轨标定方法[J]. 空间科学学报,2014,34(2):235-241.
APA 张镇绮,李磊,周斌,&张艺腾.(2014).基于绝对磁场测量的磁通门磁强计在轨标定方法.空间科学学报,34(2),235-241.
MLA 张镇绮,et al."基于绝对磁场测量的磁通门磁强计在轨标定方法".空间科学学报 34.2(2014):235-241.
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