Fig. 13
From: 3-D inversion of magnetic data based on the L1–L2 norm regularization
Optimal models derived by L1–L2 norm combined regularized inversion. Optimal models derived by L1–L2 norm combined regularized inversion with \(\hat{\alpha }^{S_1}=0.96\) and \(\sigma _0\) of a 0.5, b 5.0, and c 10.0 nT, with \(\hat{\alpha }^{S_2}=0.90\) and \(\sigma _0\) of d 0.5, e 5.0, and f 10.0 nT. White squares indicate the location of the magnetized blocks of the true model