How to compensate compass drift

[Anil3]

Hello Everyone!!!

I am using ISM303DAC Mems sensor for my project ie., E-Compass.

I have used MotionMC and MotionEC libraries to get the heading value i my compass is getting calibrated by MotionMC and after that i am sending those calibrated values to MotionEC library and receiving heading values but there i have found that Angle is drifting about 0.1 -  0.9 deg. Is it possible to compensate this drift i have taken reading for 15 min in a particular place & observed that there is a standard deviation of around 0.5deg

Can anyone please suggest how to compensate this drift.

Thank you!!!

regards,

ANIL.