ICM-20948 quaternion drift

By yingtangi0com , 30 September 2021

Has anyone encountered a problem of quaternion drifting for about 5 seconds after certain movements.

I checked the calibrated accelerometer, gyro and magnetometer. They are all very stable.

I wonder if this is related to how quaternion is calculated.

Does anyone know the reason of it? If not, Do you know where I can find documents related to the quaternion calculation in ICM-20948?

Thank you
Ying

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