Premium
Processing Z gradiometer magnetic data using linear transforms and analytical signal
Author(s) -
Tabbagh Alain,
Desvignes Guy,
Dabas Michel
Publication year - 1997
Publication title -
archaeological prospection
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.785
H-Index - 38
eISSN - 1099-0763
pISSN - 1075-2196
DOI - 10.1002/(sici)1099-0763(199703)4:1<1::aid-arp61>3.0.co;2-5
Subject(s) - gradiometer , fluxgate compass , data processing , signal (programming language) , computer science , prospecting , signal processing , unexploded ordnance , magnetometer , geology , remote sensing , algorithm , acoustics , magnetic field , artificial intelligence , physics , database , mining engineering , quantum mechanics , programming language , telecommunications , radar
For 25 years the fluxgate gradiometer has been in common use in magnetic archaeological prospecting. It constitutes a cheap and light solution well adapted for the detection of earth‐filled and burned features and of elements built with brick or magnetic stones. Among the different processing techniques that can be applied to the magnetic data, we chose to use linear transforms, which aim at locating and delineating precisely the buried features and at correcting for field inclination using no a priori information about causative bodies. We applied these transforms to fluxgate Δ Z gradiometer data, by calculation in the spectral domain for both synthetic and measured data. The advantages of this application depend on the characteristics of the features searched for and of their environment, and several transformed maps can be calculated by the interpreter in order to choose the most convenient for a given survey. © 1997 John Wiley & Sons, Ltd.