Basic question concerning sensor fusion:
A standard 10 DoF IMU, I mean this cheap things for the tinkerer at home, provides 10 values: 3 Accelerometers 3 Gyroscope 3 Magnetic Field Measurements 1 Pressure sensor (+ 1 Temperature)
I know that the accel-data provide long term stability, but are useless for short term and the gyroscope is more or less vice versa.
So there are tons of strategies to "marry" this values, but how does the magnetic field measurement fit into this framework?
Basically the magnetic field measurement should provide an attitude, too. Like the other two sensors combined. I guess this measurement alone is neither reliable.
So how do all these sensors fit together?