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Interpretation of magnetic data using analytic signal derivatives
Author(s) -
Salem Ahmed
Publication year - 2005
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1111/j.1365-2478.2005.00434.x
Subject(s) - interpretation (philosophy) , a priori and a posteriori , signal (programming language) , analytic signal , noise (video) , regional geology , economic geology , magnetic field , field (mathematics) , geology , computer science , algorithm , signal processing , hydrogeology , mathematics , physics , artificial intelligence , telmatology , telecommunications , philosophy , radar , geotechnical engineering , epistemology , quantum mechanics , pure mathematics , image (mathematics) , programming language
This paper develops an automatic method for interpretation of magnetic data using derivatives of the analytic signal. A linear equation is derived to provide source location parameters of a 2D magnetic body without a priori information about the nature of the source. Then using the source location parameters, the nature of the source can be ascertained. The method has been tested using theoretical simulations with random noise for two 2D magnetic models placed at different depths with respect to the observation height. In both cases, the method gave a good estimate for the location and shape of the sources. Good results were obtained on two field data sets.