The field source location identification of magnetic anomalies is an important task in the processing and interpretation of magnetic anomaly data. However

in actual work

there are many factors that make it impossible to directly and accurately identify the location of the field source. Aiming at the problems in actual work

this paper studies 12 magnetic anomaly recognition methods. By building a combination model

compare and analyze the boundary enhancement effect

advantages and disadvantages and applicable conditions of each method without magnetization direction

different field source shapes and noise interference. The theoretical model test proved that in the case of strong remanence. The normalized magnetic source intensity has a better recognition effect than other recognition methods. This provides a favorable reference for the selection of magnetic anomaly identification methods in actual work.