A recursive approach to improve the image quality in well-logging environments

Summary form only given. Well-logging (WL) techniques have been widelyused for oil exploration, in which antenna arrays are deployed along two boreholes on both sides of the target domain. Usually, the recovered distributions of permittivity and conductivity are roughly conformal to the target shape, except near the target boundary. Random ripples in the distributions of permittivityand conductivityare observed inside and outside the target, more significant near the target boundary.