The Use of the Analytic Signal in VLF-EM for Delineating Conducting Structures

P087 THE USE OF THE ANALYTIC SIGNAL IN VLF- EM FOR DELINEATING CONDUCTING STRUCTURES Abstract 1 BAKER H.A. DJEDDI M. & LAMARA S. Geophysics Department FSTGAT USTHB BP.32 Algiers Algeria INTRODUCTION: In near surface geophysics we consider our objectives to be: the localization of the anomaly sources the description of their forms their extensions and the estimation of the depth to the top of the required structure as well as the determination of their principal characteristics and physical properties. Many research works were carried out in the field of applied electromagnetics in order to achieve these above mentioned goals. However