31 December 2010 Calibration of three-axis magnetometer diversionary error based on equipment and LMS adaptive algorithm
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Proceedings Volume 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation; 75445P (2010); doi: 10.1117/12.885281
Event: Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 2010, Hangzhou, China
Abstract
Bias of magnetometers and target total value is obtained precisely via calibration equipment. Then, real time calibration weight matrix is obtained using LMS adaptive algorithm. It is proved through experiment that bias is obtained with good stability and accuracy compared with parameter estimation; after calibration, diversionary error is reduced from 33nT to 4nT. Furthermore, diversionary error is calibrated well using a proton magnetometer without rotating the magnetometer over one circle. Experiment results show that it not only reduces diversionary error fluctuation but also eliminates system error compared with other methods.
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Hongfeng Pang, Shitu Luo, Mengchun Pan, Qi Zhang, Ruifang Xie, "Calibration of three-axis magnetometer diversionary error based on equipment and LMS adaptive algorithm", Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75445P (31 December 2010); doi: 10.1117/12.885281; https://doi.org/10.1117/12.885281
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KEYWORDS
Magnetometers

Calibration

Magnetism

Detection and tracking algorithms

Error analysis

Data modeling

Data acquisition

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