Magnetic Anomaly Processing And Interpretation System Design And Development

With the geological exploration work carried out, as well as the continuous deepening of the modern theory of mathematical physics and computer science, magnetic exploration is developing rapidly. Magnetic exploration makes equipment, techniques, explain theory and practical application a comprehensive system development. It also makes the complex magnetic field calculation and inversion possible. It is not possible to solve the problem by hand in the past.At present, there are some magnetic data processing and inversion softwares at home and abroad, in which, some data-processing functions are not strong, and some integrated platforms are very expensive, and some are only focused on one aspect. It is not conducive to a comprehensive explanation of magnetic anomalies and to geological staff to dealing with the data surveyed, mapping, editing, converting and inversing.Based on the magnetic exploration work and the requirements of magnetic data processing and inversion, by summing up the actual magnetic measurement on the basis of experience, the magnetic anomaly processing and interpretation system was designed. Its function modules are magnetic survey data processing, such as the correction of diurnal variation, the correction of the gradient, the interpolation of coordinate, the merging of documents, the sleeking of data, the analytical continuation, data gridding, data statistics and so on. The surveyed data can be converted to post-line map data, plane section data, flat contour data, and 2D and 3D inversion data. Graphics module contains drawing post-line map, flat profile map and 3D display map. Inversion module includes 2D and 3D inversion, which are loaded through other procedures to achieve. Tool module includes normal magnetic field calculation module and magnetic quality inspection module. This system also contains external module and help module. This system can makes magnetic data processing more convenient. In the data preprocessing module, pretreatment is mainly based on the ENVI magnetometer magnetic survey data (The other magnetic data format files can also be opened, or by using external manager you can also achieve this). The data can be converted to the standard data format and then the magnetic anomaly map can be drawn. After that the magnetic anomaly inversion and comprehensive interpretation can be done.Based on Microsoft .Net platform, the main part of the system is designed by using the C # language. Based on Microsoft Visual Studio 6.0 platform, some functional modules are completed for the system function calls.