文章基本信息

标题：Research on error compensation in the process of geomagnetic sensor measurement
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作者：Zhang Pingan ; Wang Wei ; Gao Ming 等
期刊名称：International Journal of Distributed Sensor Networks
印刷版ISSN：1550-1329
电子版ISSN：1550-1477
出版年度：2021
卷号：17
期号：5
页码：1
DOI：10.1177/15501477211019911
出版社：Hindawi Publishing Corporation
摘要：The geomagnetic sensor is a kind of highly sensitive sensor, which is easy to be interfered with by the outside in the process of measurement. To solve this problem, the author uses the least square method to estimate the gain value and sensitivity product value of the amplification circuit of the geomagnetic sensor and explores the solution of the bias voltage of the geomagnetic sensor by using the ellipsoid fitting model. By analyzing the error sources of the geomagnetic sensors in the measurement process, the error compensation model covering various error factors is constructed. All parameters of the error compensation model are obtained by fitting the experimental data of the turntable. After several experiments with different attitude angles, the validity of the compensation model is verified, and the measurement accuracy of the roll angle is improved, which meets the requirements of roll angle measurement.
关键词：Three-axis geomagnetic sensor; least square method; ellipsoid fitting; error compensation; attitude angle measurement
其他关键词：Three-axis geomagnetic sensor ; least square method ; ellipsoid fitting ; error compensation ; attitude angle measurement