A Field Calibration Approach for Triaxial MEMS Gyroscopes Based on Gravity and Rotation Consistency

Conventional triaxial MEMS gyroscope calibration relies on strict mounting constraints, specialized apparatus, and elaborate laboratory procedures that hinder field deployment; this work presents a field-deployable method enabling efficient and accurate in-field calibration. The core strategy is to utilize the criterion that the dot product of the measured gravity and the rotation speed in a fixed frame remains constant. To eliminate the impact of external acceleration, the calibration process i