# Meta Motion R - Displacement tracking through Sensor Fusion

I don´t know if this question has been answered already, but here goes.

Do you guys have any best method for calculating displacement using Meta Motion R? In your Facebook advertisement, you post, that the board is optimal for "accurate displacement calculation". I guess that this is not done by double integrating acceleration signal due to signal noise multiplication.

So this is done with the sensor fusion method which obtains quaternions.

Can anyone help me with best practices for calculating axis displacement through quaternion if possible? Links to any tutorials, documentation etc?

I am trying to calculate changes in Z-axis down to the centimeter if possible. So Barometer(altitude) is out of the question.

So far if have only tried double integrating a highpass filtered dataset but without any luck.

Regards

Nils Kristensen

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