Fast Algebraic Calibration of MEMS Tri-axis Magnetometer for Initial Alignment Using Least Square Method

被引：9
|
作者：
Kim, Hyo-Joong [1 ]
Kwon, Keum-Cheol [1 ]
Shim, Duk-Sun [1 ]
机构：
[1] Chung Ang Univ, Sch Elect & Elect Engn, Seoul, South Korea
来源：
JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY | 2020年 / 15卷 / 05期
关键词：
Magnetometer; Calibration; Ellipsoid fitting; Least square method; MEMS;
D O I：
10.1007/s42835-020-00516-4
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Magnetometer is an important sensor for attitude estimation in low-cost, high performance navigation systems and the application extends with inertial sensors to indoor navigation, mobile devices, health monitoring, and so on. Magnetometer calibration is an essential procedure before using it. This paper proposes a fast algebraic calibration algorithm without external reference system after obtaining an ellipsoid fitting from arbitrary rotations of MEMS magnetometer, and also proposes a calibrated measurement to calculate heading for initial alignment.
引用
收藏
页码：2361 / 2372
页数：12
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