SimPEG.potential_fields.magnetics.Simulation3DDifferential.projectFields

Simulation3DDifferential.projectFields(u)

This function projects the fields onto the data space. Especially, here for we use total magnetic intensity (TMI) data, which is common in practice. First we project our B on to data location

\[\mathbf{B}_{rec} = \mathbf{P} \mathbf{B}\]

then we take the dot product between B and b_0

\[\text{TMI} = \vec{B}_s \cdot \hat{B}_0\]