Magnetization Vector Inversion Based on Amplitude and Gradient Constraints

Magnetization vector inversion has been developed since it can increase accuracy due to the unknown magnetization direction caused by remanence. However, three components of total magnetizations are simultaneously inverted and then synthesized into magnitude direction, which increases inherent non-uniqueness inversion. The positions originally consistent. If there is a lack constraints between them during process, they may be misaligned, resulting in large deviation model ground truth. To address this issue at same time edges models, paper proposes scheme with its gradients’ sparse Lp norm functions based on amplitude instead single component improve result. evaluate performance, an improved evaluation index also proposed paper, better shape, position model. method recover models higher compared traditional methods, indicated indexes. Simulation results open-source SimPEG software actual measured Galinge iron ore deposit (China) data verified effectiveness advantages method.