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.

中文翻译：

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使用最小二乘法进行初始对准的 MEMS 三轴磁力计的快速代数校准

磁力计是低成本、高性能导航系统中姿态估计的重要传感器，其应用随着惯性传感器扩展到室内导航、移动设备、健康监测等。磁力计校准是使用前必不可少的程序。本文提出了一种无需外部参考系统的快速代数校准算法，该算法在从 MEMS 磁力计的任意旋转中获得椭球拟合后，还提出了一种校准测量，用于计算初始对准的航向。