“…To solve Equation (), the objective function
is defined and minimized to estimate the parameter
:
where
is the observed total field anomaly and α is the regularization parameter.
is a diagonal matrix involving depth weighting (Liu et al.,
2017) and sparse constraints (Li et al.,
2022) applied to the inversion model to obtain a more compact distribution of magnetic sources. The boundary limitation of magnetization intensity in inversion process is set as 0–2.5 A/m.…”